Version 174.2 by Xiaoling on 2022/06/21 09:50
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8 (% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
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17 = (% _msthash="277498" _msttexthash="253045" _mstvisible="3" %)1.  Introduction(%%) =
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20 == (% _msthash="1532895" _msttexthash="1426958" _mstvisible="3" %)1.1  What is LHT52 Temperature & Humidity Sensor(%%) ==
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23 (((
24 (% _msthash="506051" _msttexthash="24333127" _mstvisible="2" %)
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27 The Dragino LHT52 Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:blue" %)**built-in Temperature & Humidity sensor** (%%)and has a USB Type-C sensor connector to connect to external sensors such as external Temperature Sensor.
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29 LHT52 (% style="color:blue" %)**senses environment temperature and humidity**(%%) and send these values via long-range wireless LoRaWAN protocol. It targets professional wireless sensor network applications such as food service, smart metering, smart cities, building automation, and so on.
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31 LHT52 supports(% style="color:blue" %)** 2 x AAA batteries **(%%)and works for a long time up to several years. Use can replace the batteries easily after they are finished.
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33 LHT52 is fully compatible with LoRaWAN v1.0.3 protocol, it can work with standard LoRaWAN gateway.
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35 LHT52 supports(% style="color:blue" %)** Datalog feature** (%%)to make sure users won’t miss sensor data. It records sensor value for every uplink. These values can be retrieved by LoRaWAN server via downlink command.
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37 LHT52 supports(% style="color:blue" %)** temperature alarm feature**(%%). It can uplink alarm in a short interval while temperature exceeds preset limits.
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39 *Battery life depends how often to send data, please see [[battery analyzer>>||anchor="H4.2A0PowerConsumptionAnalyze"]].
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47 (% _msthash="506056" _msttexthash="5557097" _mstvisible="2" %)
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51 (% _mstvisible="1" %)
52 == (% _msthash="182559" _msttexthash="163319" _mstvisible="3" %)1.2  Features(%%) ==
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55 * Wall Attachable.
56 * LoRaWAN v1.0.3 Class A protocol.
57 * Built-in Temperature & Humidity sensor
58 * Optional External Probe
59 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
60 * AT Commands to change parameters
61 * Remote configure parameters via LoRaWAN Downlink
62 * Firmware upgradable via program port
63 * Support 2 x AAA LR03 batteries.
64 * Datalog feature
65 * IP Rating: IP52
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69 (% _mstvisible="1" %)
70 == (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3  Specification(%%) ==
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78 (% _msthash="506057" _msttexthash="671437" _mstvisible="4" %)**Built-in Temperature Sensor:**
79 )))
80
81 * Resolution: 0.01 °C
82 * Accuracy Tolerance: Typ ±0.3 °C
83 * Long Term Drift: < 0.02 °C/yr
84 * Operating Range: -20 ~~ 50 °C
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92 (% _msthash="506058" _msttexthash="544453" _mstvisible="4" %)**Built-in Humidity Sensor:**
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95 * Resolution: 0.1 %RH
96 * Accuracy Tolerance: Typ ±3 %RH
97 * Long Term Drift: < 0.02 °C/yr
98 * Operating Range: 0 ~~ 99.0 %RH(no Dew)
99 )))
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113 == 1.4  Power Consumption ==
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115 LHT52 (without external sensor): Idle: 5uA, Transmit: max 110mA
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117 LHT52 + External Temperature Probe (AS-01): Idle: 6uA, Transmit: max 110mA.
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120
121 == 1.5  Storage & Operation Temperature ==
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123 -20°C to +50°C
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127 == 1.6  Applications ==
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129 * Smart Buildings & Home Automation
130 * Logistics and Supply Chain Management
131 * Smart Metering
132 * Smart Agriculture
133 * Smart Cities
134 * Smart Factory
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137 )))
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139 (% _mstvisible="1" %)
140 = (% _msthash="655759" _msttexthash="618618" _mstvisible="3" %)2.  O(%%)peration Mode =
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142 (% _mstvisible="1" %)
143 == (% _msthash="462371" _msttexthash="410332" _mstvisible="3" %)2.1 How it work?(%%) ==
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148 Each LHT52 is shipped with a worldwide unique set of LoRaWAN OTAA keys. To use LHT52 in a LoRaWAN network, user needs to input the OTAA keys in LoRaWAN network server. After this, if LHT52 is under this LoRaWAN network coverage, LHT52 can join the LoRaWAN network and start to transmit sensor data. The default period for each uplink is** 20 minutes**.
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161 == (% _msthash="514384" _msttexthash="458666" _mstvisible="3" %)2.2 How to Activate LHT52?(%%) ==
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163 (% style="color:red" %)** 1.  Open enclosure from below position.**
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165 [[image:image-20220621093835-1.png]]
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168 (% style="color:red" %)** 2.  Insert 2 x AAA LR03 batteries.**
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170 [[image:image-20220621093835-2.png]]
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173 (% style="color:red" %)** 3.  Press the reset button to activate device.**
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175 [[image:image-20220621093835-3.png]]
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178 User can check [[LED Status>>||anchor="H2.8A0LEDIndicator"]] to know the working state of LHT52.
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182 (% _mstvisible="1" %)
183 == (% _msthash="882726" _msttexthash="838526" _mstvisible="3" %)2.3 Example to join LoRaWAN network(%%) ==
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185 This section shows an example for how to join the [[TheThingsNetwork>>url:https://www.thethingsnetwork.org/]] LoRaWAN IoT server. Usages with other LoRaWAN IoT servers are of similar procedure.
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187 (% _mstvisible="1" class="wikigeneratedid" %)
188 [[image:1655775912928-657.png]]
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190 Assume the DLOS8 is already set to connect to [[TTN V3 network >>url:https://eu1.cloud.thethings.network/]]. We need to add the LHT52 device in TTN V3 portal.
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193 **Step 1**:  Create a device in TTN V3 with the OTAA keys from LHT52.
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195 Each LHT52 is shipped with a sticker with the default DEV EUI as below:
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198 [[image:image-20220617150003-1.jpeg]]
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201 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
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203 Add APP EUI in the application.
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205 choose to create the device manually.
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207 Add APP KEY and DEV EUI
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211 [[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
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214 [[image:1655776122894-257.png]]
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217 **Default mode OTAA**
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223 [[image:1655776241177-240.png]]
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228 Input APP EUI,  APP KEY and DEV EUI:
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231 [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
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236 === (% _msthash="3537456" _msttexthash="3448549" _mstvisible="3" %)2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds.(%%) ===
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238 (% _msthash="315248" _msttexthash="14452321" _mstvisible="1" %)
239 Use ACT button to activate LHT65N and it will auto-join to the TTN V3 network. After join success, it will start to upload sensor data to TTN V3 and user can see in the panel.
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241 (% _mstvisible="1" %)
242 [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
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246 (% _mstvisible="1" %)
247 == (% _msthash="320879" _msttexthash="294970" _mstvisible="3" %)2.4 Uplink Payload(%%) ==
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249 (% _msthash="315249" _msttexthash="7722962" _mstvisible="1" %)
250 The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% _mstvisible="3" style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
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252 (% _msthash="315250" _msttexthash="1322711" _mstvisible="1" %)
253 After each uplink, the (% _mstvisible="3" style="color:blue" %)**BLUE LED**(%%) will blink once.
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255 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:426px" %)
256 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
257 (((
258 (% _mstvisible="6" %)
259 (% _msthash="1817478" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
260 )))|=(% _mstvisible="4" style="width: 39px;" %)(% _mstvisible="5" %)
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263 (% _msthash="1817479" _msttexthash="4550" _mstvisible="8" %)**2**
264 )))|=(% _mstvisible="4" style="width: 100px;" %)(% _mstvisible="5" %)
265 (((
266 (% _mstvisible="6" %)
267 (% _msthash="1817480" _msttexthash="4550" _mstvisible="8" %)**2**
268 )))|=(% _mstvisible="4" style="width: 77px;" %)(% _mstvisible="5" %)
269 (((
270 (% _mstvisible="6" %)
271 (% _msthash="1817481" _msttexthash="4550" _mstvisible="8" %)**2**
272 )))|=(% _mstvisible="4" style="width: 47px;" %)(% _mstvisible="5" %)
273 (((
274 (% _mstvisible="6" %)
275 (% _msthash="1817482" _msttexthash="4459" _mstvisible="8" %)**1**
276 )))|=(% _mstvisible="4" style="width: 51px;" %)(% _mstvisible="5" %)
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278 (% _mstvisible="6" %)
279 (% _msthash="1817483" _msttexthash="4732" _mstvisible="8" %)**4**
280 )))
281 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
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283 (% _mstvisible="6" %)
284 (% _msthash="1817484" _msttexthash="60203" _mstvisible="8" %)**Value**
285 )))|(% _mstvisible="4" style="width:39px" %)(% _mstvisible="5" %)
286 (((
287 (% _mstvisible="6" %)
288 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo" _msthash="1817485" _msttexthash="22594" _mstvisible="7"]]
289 )))|(% _mstvisible="4" style="width:100px" %)(% _mstvisible="5" %)
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293 (% _mstvisible="7" %)
294 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
295 )))
296 )))|(% _mstvisible="4" style="width:77px" %)(% _mstvisible="5" %)
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301 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2224743" _msttexthash="105872" _mstvisible="8"]]
302 )))
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304 (% _mstvisible="6" %)
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306 (% _mstvisible="7" %)
307 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429" _mstvisible="8"]]
308 )))
309 )))|(% _mstvisible="4" style="width:47px" %)(% _mstvisible="5" %)
310 (((
311 (% _mstvisible="6" %)
312 [[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331" _mstvisible="7"]] #
313 )))|(% _mstvisible="4" style="width:51px" %)(% _mstvisible="5" %)
314 (((
315 (% _mstvisible="6" %)
316 [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
317 )))
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319 (% _mstvisible="1" %)
320 * The First 6 bytes: has fix meanings for every LHT65N.
321 * The 7th byte (EXT #): defines the external sensor model.
322 * The 8(% _msthash="734578" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) ~~ 11(% _msthash="734579" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won’t be these four bytes.)
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324 (% _mstvisible="1" %)
325 === (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) ===
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327 (% _msthash="315251" _msttexthash="9786491" _mstvisible="1" %)
328 When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N decoder in TTNv3 for friendly reading.
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330 (% _msthash="315252" _msttexthash="3928483" _mstvisible="1" %)
331 Below is the position to put the decoder and LHT65N decoder can be download from here:
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334 [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0||_msthash="315253" _msttexthash="3509064" _mstvisible="2"]]
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336 (% _mstvisible="1" %)
337 [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
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341 (% _mstvisible="1" %)
342 === (% _msthash="411411" _msttexthash="383656" _mstvisible="3" %)2.4.2 BAT-Battery Info(%%) ===
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344 (% _msthash="315254" _msttexthash="3122912" _mstvisible="1" %)
345 These two bytes of BAT include the battery state and the actually voltage
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347 (% _mstvisible="1" %)
348 [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
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350 (% _mstvisible="1" %)
351 [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
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353 (% _msthash="315255" _msttexthash="871611" _mstvisible="1" %)
354 Check the battery voltage for LHT65N.
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357 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
358 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
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360 (% _mstvisible="1" %)
361 === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
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363 (% _mstvisible="1" %)
364 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
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366 (% _mstvisible="1" %)
367 * Temperature:  0x0ABB/100=27.47℃
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369 (% _mstvisible="1" %)
370 [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
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372 (% _mstvisible="1" %)
373 * Temperature:  (0xF5C6-65536)/100=-26.18℃
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375 (% _mstvisible="1" %)
376 === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
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378 (% _mstvisible="1" %)
379 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
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381 (% _mstvisible="1" %)
382 * Humidity:    0x025C/10=60.4%
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384 (% _mstvisible="1" %)
385 === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
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387 (% _msthash="315256" _msttexthash="552240" _mstvisible="1" %)
388 Bytes for External Sensor:
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390 (% _mstvisible="1" %)
391 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
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394 (% _mstvisible="1" %)
395 === (% _msthash="221429" _msttexthash="200655" _mstvisible="3" %)2.4.6 Ext value(%%) ===
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397 (% _mstvisible="1" %)
398 ==== (% _msthash="1005901" _msttexthash="877578" _mstvisible="3" %)2.4.6.1 Ext~=1, E3 Temperature Sensor(%%) ====
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400 (% _mstvisible="1" %)
401 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
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404 (% _mstvisible="1" %)
405 * DS18B20 temp=0x0ADD/100=27.81℃
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407 (% _msthash="315257" _msttexthash="1038479" _mstvisible="1" %)
408 The last 2 bytes of data are meaningless
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410 (% _mstvisible="1" %)
411 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
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415 * External temperature= (0xF54F-65536)/100=-27.37℃
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417 (% _mstvisible="1" %)
418 (((
419 (% _msthash="506063" _msttexthash="1038479" _mstvisible="2" %)
420 The last 2 bytes of data are meaningless
421 )))
422
423 (% _mstvisible="1" %)
424 (((
425 (% _msthash="506064" _msttexthash="21185632" _mstvisible="2" %)
426 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
427 )))
428
429
430 (% _mstvisible="1" %)
431 ==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
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433 (% _msthash="315258" _msttexthash="41539368" _mstvisible="1" %)
434 Timestamp mode is designed for LHT65N with E3 probe, it will send the uplink payload with Unix timestamp. With the limitation of 11 bytes (max distance of AU915/US915/AS923 band), the time stamp mode will be lack of BAT voltage field, instead, it shows the battery status. The payload is as below:
435
436 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
437 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 96px;" %)(% _mstvisible="5" %)
438 (((
439 (% _mstvisible="6" %)
440 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
441 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
442 (((
443 (% _mstvisible="6" %)
444 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
445 )))|=(% _mstvisible="4" style="width: 99px;" %)(% _mstvisible="5" %)
446 (((
447 (% _mstvisible="6" %)
448 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
449 )))|=(% _mstvisible="4" style="width: 132px;" %)(% _mstvisible="5" %)
450 (((
451 (% _mstvisible="6" %)
452 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
453 )))|=(% _mstvisible="4" style="width: 54px;" %)(% _mstvisible="5" %)
454 (((
455 (% _mstvisible="6" %)
456 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
457 )))|=(% _mstvisible="4" style="width: 64px;" %)(% _mstvisible="5" %)
458 (((
459 (% _mstvisible="6" %)
460 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
461 )))
462 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
463 (((
464 (% _mstvisible="6" %)
465 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
466 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
467 (((
468 (% _mstvisible="6" %)
469 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
470 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
471 (((
472 (% _mstvisible="6" %)
473 (((
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475 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
476 )))
477
478 (% _mstvisible="6" %)
479 (((
480 (% _mstvisible="7" %)
481 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
482 )))
483 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
484 (((
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486 (((
487 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
488 BAT Status &
489 )))
490
491 (% _mstvisible="6" %)
492 (((
493 (% _mstvisible="7" %)
494 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
495 )))
496 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
497 (((
498 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
499 Status & Ext
500 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
501 (((
502 (% _mstvisible="6" %)
503 (((
504 (% _mstvisible="7" %)
505 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
506 )))
507 )))
508
509 (% _mstvisible="1" %)
510 * (% _msthash="2539669" _msttexthash="857922" _mstvisible="3" %)**Battery status & **(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)**Built-in Humidity**
511
512 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:469px" %)
513 (% _mstvisible="3" %)|=(% _msthash="1230918" _msttexthash="93158" _mstvisible="4" style="width: 65px;" %)Bit(bit)|=(% _msthash="1230919" _msttexthash="57954" _mstvisible="4" style="width: 267px;" %)[15:14]|=(% _msthash="1230920" _msttexthash="48022" _mstvisible="4" style="width: 134px;" %)[11:0]
514 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
515 (((
516 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
517 BAT Status
518
519 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
520 00(b): Ultra Low ( BAT <= 2.50v)
521
522 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
523 01(b): Low  (2.50v <=BAT <= 2.55v)
524
525 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
526 10(b): OK   (2.55v <= BAT <=2.65v)
527
528 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
529 11(b): Good   (BAT >= 2.65v)
530 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
531 (((
532 (% _mstvisible="6" %)
533 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
534
535 (% _mstvisible="6" %)
536
537 )))
538
539 (% _mstvisible="1" %)
540 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
541
542 (% _mstvisible="1" %)
543 [[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
544
545 (% _mstvisible="1" %)
546 * Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
547 * Sync time OK: 1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server.
548 * Unix Time Request:1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
549
550 ==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable)(%%) ====
551
552 In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
553
554 be used to power the external ADC sensor; user can control the power on time for this
555
556 sensor by setting:
557
558 AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
559
560
561
562 (% _mstvisible="1" %)
563 == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
564
565 (% _msthash="315259" _msttexthash="20933341" _mstvisible="1" %)
566 Datacake IoT platform provides a human-friendly interface to show the sensor data, once we have sensor data in TTN V3, we can use Datacake to connect to TTN V3 and see the data in Datacake. Below are the steps:
567
568 (% _mstvisible="1" %)
569 (((
570 (% _msthash="506065" _msttexthash="4753983" _mstvisible="2" %)
571 (% _mstvisible="3" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
572 )))
573
574 (% _mstvisible="1" %)
575 (((
576 (% _msthash="506066" _msttexthash="14696682" _mstvisible="2" %)
577 (% _mstvisible="3" %)**Step 2**(%%): Configure your Application to forward data to Datacake you will need to add integration. Go to TTN V3 Console ~-~-> Applications ~-~-> Integrations ~-~-> Add Integrations.
578 )))
579
580 (% _mstvisible="1" %)
581 (((
582 (% _msthash="506067" _msttexthash="180297" _mstvisible="2" %)
583 Add Datacake:
584 )))
585
586 (% _mstvisible="1" %)
587 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
588
589
590 (% _msthash="315260" _msttexthash="750178" _mstvisible="1" %)
591 Select default key as Access Key:
592
593 (% _mstvisible="1" %)
594 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
595
596 (% _msthash="315261" _msttexthash="2134964" _mstvisible="1" %)
597 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
598
599 (% _mstvisible="1" %)
600 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
601
602 (% _mstvisible="1" %)
603 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
604
605
606
607 (% _mstvisible="1" %)
608 == (% _msthash="350454" _msttexthash="323544" _mstvisible="3" %)2.6 Datalog Feature(%%) ==
609
610 (% _msthash="315262" _msttexthash="32283004" _mstvisible="1" %)
611 Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, LHT65N will store the reading for future retrieving purposes. There are two ways for IoT servers to get datalog from LHT65N.
612
613
614 (% _mstvisible="1" %)
615 === (% _msthash="886158" _msttexthash="842426" _mstvisible="3" %)2.6.1 Ways to get datalog via LoRaWAN(%%) ===
616
617 (% _msthash="315263" _msttexthash="409604" _mstvisible="1" %)
618 There are two methods:
619
620 (% _mstvisible="1" %)
621 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
622 1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after network recover.
623
624 (% _mstvisible="1" %)
625 === (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
626
627 (% _msthash="315264" _msttexthash="1182285" _mstvisible="1" %)
628 LHT65N uses Unix TimeStamp format based on
629
630 (% _mstvisible="1" %)
631 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
632
633
634 (% _mstvisible="1" %)
635 (((
636 (% _msthash="506068" _msttexthash="2717234" _mstvisible="2" %)
637 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
638 )))
639
640 (% _mstvisible="1" %)
641 (((
642 (% _msthash="506069" _msttexthash="709813" _mstvisible="2" %)
643 Below is the converter example
644 )))
645
646 (% _mstvisible="1" %)
647 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
648
649 (% _msthash="315265" _msttexthash="15137317" _mstvisible="1" %)
650 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
651
652
653 (% _mstvisible="1" %)
654 === (% _msthash="359294" _msttexthash="332748" _mstvisible="3" %)2.6.3 Set Device Time(%%) ===
655
656 (% _mstvisible="1" %)
657 (((
658 (% _msthash="506070" _msttexthash="4521946" _mstvisible="2" %)
659 There are two ways to set device’s time:
660 )))
661
662 (% _mstvisible="1" %)
663 (((
664 (% _mstvisible="2" %)
665 (% _msthash="506071" _msttexthash="1498471" _mstvisible="4" %)**1. Through LoRaWAN MAC Command (Default settings)**
666 )))
667
668 (% _mstvisible="1" %)
669 (((
670 (% _msthash="506072" _msttexthash="2126267" _mstvisible="2" %)
671 User need to set SYNCMOD=1 to enable sync time via MAC command.
672 )))
673
674 (% _mstvisible="1" %)
675 (((
676 (% _msthash="506073" _msttexthash="54430324" _mstvisible="2" %)
677 Once LHT65N Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LHT65N. If LHT65N fails to get the time from the server, LHT65N will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
678 )))
679
680 (% _mstvisible="1" %)
681 (((
682 (% _msthash="506074" _msttexthash="92531127" _mstvisible="2" %)
683 Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn’t support. If server doesn’t support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.
684 )))
685
686 (% _mstvisible="1" %)
687 (((
688 (% _mstvisible="2" %)
689
690 )))
691
692 (% _mstvisible="1" %)
693 (((
694 (% _mstvisible="2" %)
695 (% _msthash="506075" _msttexthash="329719" _mstvisible="4" %)**2. Manually Set Time**
696 )))
697
698 (% _mstvisible="1" %)
699 (((
700 (% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
701 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
702
703 (% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
704
705 )))
706
707 (% _mstvisible="1" %)
708 === (% _msthash="460759" _msttexthash="430001" _mstvisible="3" %)2.6.4 Poll sensor value(%%) ===
709
710 (% _msthash="315266" _msttexthash="4955821" _mstvisible="1" %)
711 User can poll sensor value based on timestamps from the server. Below is the downlink command.
712
713 (% _mstvisible="1" %)
714 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
715
716 (% _mstvisible="1" %)
717 (((
718 (% _msthash="506077" _msttexthash="14670916" _mstvisible="2" %)
719 Timestamp start and Timestamp end use Unix TimeStamp format as mentioned above. Devices will reply with all data log during this time period, use the uplink interval.
720 )))
721
722 (% _mstvisible="1" %)
723 (((
724 (% _mstvisible="2" %)
725 For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(% _mstvisible="3" style="display:none" %)
726 )))
727
728 (% _mstvisible="1" %)
729 (((
730 (% _msthash="506078" _msttexthash="6907459" _mstvisible="2" %)
731 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
732 )))
733
734 (% _mstvisible="1" %)
735 (((
736 (% _msthash="506079" _msttexthash="23531573" _mstvisible="2" %)
737 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
738 )))
739
740
741 (% _mstvisible="1" %)
742 === (% _msthash="650923" _msttexthash="614185" _mstvisible="3" %)2.6.5 Datalog Uplink payload(%%) ===
743
744 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
745 The Datalog poll reply uplink will use below payload format.
746
747 (% _mstvisible="1" %)
748 (((
749 (% _mstvisible="2" %)
750 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
751 )))
752
753 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
754 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 93px;" %)(% _mstvisible="5" %)
755 (((
756 (% _mstvisible="6" %)
757 (((
758 (% _mstvisible="7" %)
759 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
760 )))
761 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
762 (((
763 (% _mstvisible="6" %)
764 (((
765 (% _mstvisible="7" %)
766 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
767 )))
768 )))|=(% _mstvisible="4" style="width: 102px;" %)(% _mstvisible="5" %)
769 (((
770 (% _mstvisible="6" %)
771 (((
772 (% _mstvisible="7" %)
773 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
774 )))
775 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
776 (((
777 (% _mstvisible="6" %)
778 (((
779 (% _mstvisible="7" %)
780 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
781 )))
782 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
783 (((
784 (% _mstvisible="6" %)
785 (((
786 (% _mstvisible="7" %)
787 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
788 )))
789 )))|=(% _mstvisible="4" style="width: 48px;" %)(% _mstvisible="5" %)
790 (((
791 (% _mstvisible="6" %)
792 (((
793 (% _mstvisible="7" %)
794 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
795 )))
796 )))
797 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
798 (((
799 (% _mstvisible="6" %)
800 (((
801 (% _mstvisible="7" %)
802 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
803 )))
804 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
805 (((
806 (% _mstvisible="6" %)
807 (((
808 (% _mstvisible="7" %)
809 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
810 )))
811 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
812 (((
813 (% _mstvisible="6" %)
814 (((
815 (% _mstvisible="7" %)
816 (((
817 (% _mstvisible="8" %)
818 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
819 )))
820 )))
821
822 (% _mstvisible="6" %)
823 (((
824 (% _mstvisible="7" %)
825 (((
826 (% _mstvisible="8" %)
827 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
828 )))
829 )))
830 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
831 (((
832 (% _mstvisible="6" %)
833 (((
834 (% _mstvisible="7" %)
835 (((
836 (% _mstvisible="8" %)
837 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
838 )))
839 )))
840
841 (% _mstvisible="6" %)
842 (((
843 (% _mstvisible="7" %)
844 (((
845 (% _mstvisible="8" %)
846 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
847 )))
848 )))
849 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
850 (((
851 (% _mstvisible="6" %)
852 (((
853 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
854 Poll message flag & Ext
855 )))
856 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
857 (((
858 (% _mstvisible="6" %)
859 (((
860 (% _mstvisible="7" %)
861 (((
862 (% _mstvisible="8" %)
863 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
864 )))
865 )))
866
867 (% _mstvisible="6" %)
868 (((
869 (% _mstvisible="7" %)
870 (((
871 (% _mstvisible="8" %)
872
873 )))
874 )))
875 )))
876
877 (% _mstvisible="1" %)
878 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
879
880 (% _mstvisible="1" %)
881 [[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
882
883 (% _mstvisible="1" %)
884 (((
885 (% _mstvisible="2" %)
886 (((
887 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
888 Poll Message Flag: 1: This message is a poll message reply.
889 )))
890 )))
891
892 (% _mstvisible="1" %)
893 * (% _mstvisible="3" %)
894 (((
895 (% _mstvisible="4" %)
896 (((
897 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
898 Poll Message Flag is set to 1.
899 )))
900 )))
901 * (% _mstvisible="3" %)
902 (((
903 (% _mstvisible="4" %)
904 (((
905 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
906 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
907 )))
908 )))
909
910 (% _mstvisible="1" %)
911 (((
912 (% _mstvisible="2" %)
913 (((
914 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
915
916
917 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
918 For example, in US915 band, the max payload for different DR is:
919 )))
920 )))
921
922 (% _mstvisible="1" %)
923 (((
924 (% _mstvisible="2" %)
925 (((
926 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
927 a) DR0: max is 11 bytes so one entry of data
928 )))
929 )))
930
931 (% _mstvisible="1" %)
932 (((
933 (% _mstvisible="2" %)
934 (((
935 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
936 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
937 )))
938 )))
939
940 (% _mstvisible="1" %)
941 (((
942 (% _mstvisible="2" %)
943 (((
944 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
945 c) DR2: total payload includes 11 entries of data
946 )))
947 )))
948
949 (% _mstvisible="1" %)
950 (((
951 (% _mstvisible="2" %)
952 (((
953 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
954 d) DR3: total payload includes 22 entries of data.
955 )))
956 )))
957
958 (% _mstvisible="1" %)
959 (((
960 (% _mstvisible="2" %)
961 (((
962 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
963 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
964 )))
965 )))
966
967
968 (% _mstvisible="1" style="text-align: left;" %)
969 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
970
971 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
972 If LHT65N has below data inside Flash:
973
974 (% _mstvisible="1" %)
975 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
976
977 (% _mstvisible="1" %)
978 (((
979 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
980 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
981 )))
982
983 (% _mstvisible="1" %)
984 (((
985 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
986 Where : Start time: 60065F97 = time 21/1/19 04:27:03
987 )))
988
989 (% _mstvisible="1" %)
990 (((
991 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
992 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
993 )))
994
995 (% _mstvisible="1" %)
996 (((
997 (% _mstvisible="2" %)
998
999 )))
1000
1001 (% _mstvisible="1" %)
1002 (((
1003 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
1004 LHT65N will uplink this payload.
1005 )))
1006
1007 (% _mstvisible="1" %)
1008 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
1009
1010 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
1011 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
1012
1013 (% _msthash="315237" _msttexthash="1385839" %)
1014 Where the first 11 bytes is for the first entry:
1015
1016 (% _msthash="315238" _msttexthash="274846" %)
1017 7FFF089801464160065F97
1018
1019 (% _msthash="315239" _msttexthash="617435" %)
1020 Ext sensor data=0x7FFF/100=327.67
1021
1022 (% _msthash="315240" _msttexthash="270543" %)
1023 Temp=0x0898/100=22.00
1024
1025 (% _msthash="315241" _msttexthash="211783" %)
1026 Hum=0x0146/10=32.6
1027
1028 (% _msthash="315242" _msttexthash="1569776" %)
1029 poll message flag & Ext=0x41,means reply data,Ext=1
1030
1031 (% _msthash="315243" _msttexthash="1120509" %)
1032 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
1033
1034
1035 (% _mstvisible="1" style="text-align: left;" %)
1036 == (% _msthash="244504" _msttexthash="177736" _mstvisible="3" %)2.7 Alarm Mode(%%) ==
1037
1038 (% _msthash="315279" _msttexthash="16493308" _mstvisible="1" style="text-align: left;" %)
1039 when the device is in alarm mode, it checks the built-in sensor temperature for a short time. if the temperature exceeds the preconfigured range, it sends an uplink immediately.
1040
1041 (% _mstvisible="1" %)
1042 (((
1043 (% _mstvisible="2" style="text-align: left;" %)
1044 (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.
1045 )))
1046
1047 (% _mstvisible="1" style="text-align: left;" %)
1048 (% _msthash="315280" _msttexthash="363480" _mstvisible="3" %)**AT COMMAND FOR ALARM MODE:**
1049
1050 (% _mstvisible="1" class="box infomessage" %)
1051 (((
1052 (% _msthash="506086" _msttexthash="2193529" _mstvisible="2" style="text-align: left;" %)
1053 (% _istranslated="1" _mstmutation="1" _mstvisible="4" %)**AT+WMOD=1**(%%):  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1054
1055 (% _msthash="506087" _msttexthash="3671265" _mstvisible="2" style="text-align: left;" %)
1056 (% _istranslated="1" _mstvisible="4" %)**AT+CITEMP=1**(%%):  The interval between checking the alarm temperature. (In minutes)
1057
1058 (% _msthash="506088" _msttexthash="3310437" _mstvisible="2" style="text-align: left;" %)
1059 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP**(%%):  Gets or sets the alarm range of the internal temperature sensor
1060
1061 (% _mstvisible="2" style="text-align: left;" %)
1062 (% _istranslated="1" _mstmutation="1" %)**AT+ARTEMP=？ **(%%):  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1063
1064 (% _msthash="506089" _msttexthash="3590067" _mstvisible="2" style="text-align: left;" %)
1065 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP=45,105**(%%):  Set the internal temperature sensor alarm range from 45 to 105.
1066 )))
1067
1068
1069
1070 (% _msthash="72514" _msttexthash="253149" _mstvisible="1" style="text-align: left;" %)
1071 == (% _istranslated="1" _msthash="168103" _msttexthash="59969" _mstvisible="3" %)2.8 (%%)LED Indicator ==
1072
1073 (% _mstvisible="1" %)
1074 (((
1075 (% _msthash="197769" _msttexthash="2924142" style="text-align: left;" %)
1076 The LHT65 has a triple color LED which for easy showing different stage .
1077
1078 (% _msthash="289211" _msttexthash="3402659" style="text-align: left;" %)
1079 While user press ACT button, the LED will work as per LED status with ACT button.
1080 )))
1081
1082 (% _mstvisible="1" %)
1083 (((
1084 (% _msthash="506092" _msttexthash="521573" _mstvisible="2" style="text-align: left;" %)
1085 In a normal working state:
1086 )))
1087
1088 (% _mstvisible="1" %)
1089 * (% _mstvisible="3" %)
1090 (((
1091 (% _msthash="903005" _msttexthash="1647204" _mstvisible="4" %)
1092 For each uplink, the BLUE LED or RED LED will blink (% _msthash="903005" _msttexthash="46254" _mstvisible="3" %)once(%%).(% style="display:none" %)
1093
1094 (% _msthash="197771" _msttexthash="1202526" %)
1095 (% _msthash="903005" _msttexthash="1647204" _mstvisible="3" %)BLUE LED when external sensor is connected
1096 )))
1097 * (% _mstvisible="3" %)
1098 (((
1099 (% _msthash="903007" _msttexthash="1334749" _mstvisible="4" %)
1100 RED LED when external sensor is not connected
1101 )))
1102 * (% _mstvisible="3" %)
1103 (((
1104 (% _msthash="903008" _msttexthash="1875640" _mstvisible="4" %)
1105 For each success downlink, the PURPLE LED will blink once
1106
1107
1108
1109 )))
1110
1111 (% _mstvisible="1" style="text-align: left;" %)
1112 == (% _msthash="112034" _msttexthash="277511" _mstvisible="3" %)2.9 installation(%%) ==
1113
1114 (% _mstvisible="1" %)
1115 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1116
1117
1118 (% _msthash="604150" _msttexthash="563212" _mstvisible="1" style="text-align: left;" %)
1119 = (% _msthash="401388" _msttexthash="566956" _mstvisible="3" %)3. S(% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)ensors(% _msthash="401388" _msttexthash="40417" _mstvisible="3" %) and A(% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)ccessories(%%) =
1120
1121 (% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1122 == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E2 Extension Cable(%%) ==
1123
1124 [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1125
1126 1m long breakout cable for LHT65N
1127
1128 [[image:image-20220619092421-3.png||height="371" width="529"]]
1129
1130
1131
1132 (% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1133 == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E3 Temperature Probe(%%) ==
1134
1135 (% _mstvisible="1" %)
1136 [[image:image-20220515080154-4.png||_mstalt="434681" _mstvisible="3" alt="photo-20220515080154-4.png" height="182" width="161"]] [[image:image-20220515080330-5.png||_mstalt="428792" _mstvisible="3" height="201" width="195"]]
1137
1138
1139 (% _msthash="315354" _msttexthash="1270971" _mstvisible="1" style="text-align: left;" %)
1140 Temperature sensor with 2 meters cable long
1141
1142 (% _mstvisible="1" %)
1143 * Resolution: 0.0625 °C
1144 * ±0.5°C accuracy from -10°C to +85°C
1145 * ±2°C accuracy from -55°C to +125°C
1146 * Operating Range: -40 ~~ 125 °C
1147 * -55°C to 125°C
1148 * Working voltage 2.35v ~~ 5v
1149
1150 (% _mstvisible="1" style="text-align: left;" %)
1151 = (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) =
1152
1153 (% _mstvisible="1" %)
1154 (((
1155 (% _msthash="506246" _msttexthash="2005926" _mstvisible="2" style="text-align: left;" %)
1156 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1157 )))
1158
1159 (% _mstvisible="1" %)
1160 * (% _mstvisible="3" %)
1161 (((
1162 (% _msthash="903318" _msttexthash="635544" _mstvisible="4" %)
1163 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1164 )))
1165 * (% _mstvisible="3" %)
1166 (((
1167 (% _msthash="903319" _msttexthash="3225859" _mstvisible="4" %)
1168 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1169 )))
1170
1171 (% _mstvisible="1" %)
1172 (((
1173 (% _mstvisible="2" style="text-align: left;" %)
1174
1175 )))
1176
1177 (% _mstvisible="1" %)
1178 (((
1179 (% _msthash="506248" _msttexthash="2144051" _mstvisible="2" style="text-align: left;" %)
1180 There are two kinds of commands to configure LHT65N, they are:
1181 )))
1182
1183 (% _mstvisible="1" %)
1184 (((
1185 (% _mstvisible="2" style="text-align: left;" %)
1186 (% _msthash="506249" _msttexthash="317850" _mstvisible="3" style="color:#4f81bd" %)* (% _msthash="506249" _mstmutation="1" _msttexthash="317850" _mstvisible="4" style="color:#4f81bd" %)**General Commands**(% _msthash="506249" _mstmutation="1" _msttexthash="317850" _mstvisible="3" style="color:#4f81bd" %).
1187 )))
1188
1189 (% _mstvisible="1" %)
1190 (((
1191 (% _msthash="506250" _msttexthash="774527" _mstvisible="2" style="text-align: left;" %)
1192 These commands are to configure:
1193 )))
1194
1195 (% _mstvisible="1" %)
1196 * (% _mstvisible="3" %)
1197 (((
1198 (% _msthash="903320" _msttexthash="1503580" _mstvisible="4" %)
1199 General system settings like: uplink interval.
1200 )))
1201 * (% _mstvisible="3" %)
1202 (((
1203 (% _msthash="903321" _msttexthash="1244334" _mstvisible="4" %)
1204 LoRaWAN protocol & radio-related commands.
1205 )))
1206
1207 (% _mstvisible="1" %)
1208 (((
1209 (% _msthash="506251" _msttexthash="12349142" _mstvisible="2" style="text-align: left;" %)
1210 They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~*~*). These commands can be found on the wiki: [[End Device Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
1211 )))
1212
1213 (% _mstvisible="1" %)
1214 (((
1215 (% _mstvisible="2" style="text-align: left;" %)
1216
1217 )))
1218
1219 (% _mstvisible="1" %)
1220 (((
1221 (% _mstvisible="2" style="text-align: left;" %)
1222 (% _mstvisible="3" style="color:#4f81bd" %)* (% _msthash="506249" _mstmutation="1" _msttexthash="317850" _mstvisible="4" style="color:#4f81bd" %)**Commands special design for LHT65N**
1223 )))
1224
1225 (% _mstvisible="1" %)
1226 (((
1227 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1228 These commands are only valid for LHT65N, as below:
1229
1230
1231 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1232
1233 )))
1234
1235 (% _mstvisible="1" style="text-align: left;" %)
1236 == (% _msthash="708253" _msttexthash="668772" _mstvisible="3" %)4.1 Set Transmit Interval Time(%%) ==
1237
1238 (% _msthash="315355" _msttexthash="1659268" _mstvisible="1" style="text-align: left;" %)
1239 Feature: Change LoRaWAN End Node Transmit Interval.
1240
1241 (% _mstvisible="1" style="text-align: left;" %)
1242 (% _msthash="315244" _msttexthash="241696" style="color:#4f81bd" %)**AT Command: AT+TDC**
1243
1244 (% _mstvisible="1" %)
1245 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1246
1247 (% _mstvisible="1" %)
1248 (((
1249 (% _mstvisible="2" style="text-align: left;" %)
1250
1251
1252 (% _mstvisible="2" style="text-align: left;" %)
1253 (% _msthash="506055" _msttexthash="381992" style="color:#4f81bd" %)**Downlink Command: 0x01**
1254 )))
1255
1256 (% _mstvisible="1" %)
1257 (((
1258 (% _msthash="506256" _msttexthash="1996592" _mstvisible="2" style="text-align: left;" %)
1259 Format: Command Code (0x01) followed by 3 bytes time value.
1260 )))
1261
1262 (% _mstvisible="1" %)
1263 (((
1264 (% _msthash="506257" _msttexthash="12934649" _mstvisible="2" style="text-align: left;" %)
1265 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1266 )))
1267
1268 (% _mstvisible="1" %)
1269 * (% _mstvisible="3" %)
1270 (((
1271 (% _msthash="903322" _msttexthash="3250546" _mstvisible="4" %)
1272 (% _mstvisible="5" %)**Example 1**(%%): Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1273 )))
1274 * (% _mstvisible="3" %)
1275 (((
1276 (% _msthash="903323" _msttexthash="3253315" _mstvisible="4" %)
1277 (% _mstvisible="5" %)**Example 2**(%%): Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1278
1279
1280 (% _msthash="903323" _msttexthash="3253315" _mstvisible="4" %)
1281
1282 )))
1283
1284 (% _mstvisible="1" style="text-align: left;" %)
1285 == (% _msthash="614770" _msttexthash="578240" _mstvisible="3" %)4.2 Set External Sensor Mode(%%) ==
1286
1287 (% _msthash="315357" _msttexthash="975117" _mstvisible="1" style="text-align: left;" %)
1288 Feature: Change External Sensor Mode.
1289
1290 (% _mstvisible="1" style="text-align: left;" %)
1291 (% _msthash="315245" _msttexthash="248118" style="color:#4f81bd" %)**AT Command: AT+EXT**
1292
1293 (% _mstvisible="1" %)
1294 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1295
1296 (% _mstvisible="1" %)
1297 (((
1298 (% _mstvisible="2" style="text-align: left;" %)
1299
1300
1301 (% _mstvisible="2" style="text-align: left;" %)
1302 (% _msthash="506056" _msttexthash="387855" style="color:#4f81bd" %)**Downlink Command: 0xA2**
1303 )))
1304
1305 (% _mstvisible="1" %)
1306 (((
1307 (% _msthash="506259" _msttexthash="395629" _mstvisible="2" style="text-align: left;" %)
1308 Total bytes: 2 ~~ 5 bytes
1309 )))
1310
1311 (% _mstvisible="1" %)
1312 (((
1313 (% _mstvisible="2" %)
1314 (% _msthash="506260" _msttexthash="104767" _mstvisible="4" %)**Example:**
1315 )))
1316
1317 (% _mstvisible="1" %)
1318 * (% _mstvisible="3" %)
1319 (((
1320 (% _msthash="903324" _msttexthash="934973" _mstvisible="4" %)
1321 0xA201: Set external sensor type to E1
1322 )))
1323 * (% _mstvisible="3" %)
1324 (((
1325 (% _msthash="903325" _msttexthash="354770" _mstvisible="4" %)
1326 0xA209: Same as AT+EXT=9
1327 )))
1328 * (% _mstvisible="3" %)
1329 (((
1330 (% _msthash="903326" _msttexthash="639067" _mstvisible="4" %)
1331 0xA20702003c,Same as AT+SETCNT=60
1332
1333
1334 (% _msthash="903326" _msttexthash="639067" _mstvisible="4" %)
1335
1336 )))
1337
1338 (% _mstvisible="1" style="text-align: left;" %)
1339 == (% _msthash="1562483" _msttexthash="1445717" _mstvisible="3" %)4.3 Enable/Disable uplink Temperature probe ID(%%) ==
1340
1341 (% _msthash="315359" _msttexthash="2977572" _mstvisible="1" style="text-align: left;" %)
1342 Feature: If PID is enabled, device will send the temperature probe ID on:
1343
1344 (% _mstvisible="1" %)
1345 * First Packet after OTAA Join
1346 * Every 24 hours since the first packet.
1347
1348 (% _msthash="315360" _msttexthash="658814" _mstvisible="1" style="text-align: left;" %)
1349 PID is default set to disable (0)
1350
1351 (% _mstvisible="1" style="text-align: left;" %)
1352 (% _msthash="315246" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1353
1354 (% _mstvisible="1" %)
1355 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1356
1357
1358 (% _mstvisible="1" style="text-align: left;" %)
1359 (% _msthash="315247" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1360
1361 (% _mstvisible="1" %)
1362 * 0xA800  **~-~->** AT+PID=0
1363 * 0xA801     **~-~->** AT+PID=1
1364
1365 (% _mstvisible="1" style="text-align: left;" %)
1366 == (% _msthash="266344" _msttexthash="242879" _mstvisible="3" %)4.4 Set Password(%%) ==
1367
1368 (% _msthash="315363" _msttexthash="1170728" _mstvisible="1" style="text-align: left;" %)
1369 Feature: Set device password, max 9 digits
1370
1371 (% _mstvisible="1" style="text-align: left;" %)
1372 (% _msthash="315248" _msttexthash="295009" style="color:#4f81bd" %)**AT Command: AT+PWORD**
1373
1374 (% _mstvisible="1" %)
1375 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1376
1377 (% _mstvisible="1" %)
1378 (((
1379 (% _mstvisible="2" style="text-align: left;" %)
1380
1381
1382 (% _mstvisible="2" style="text-align: left;" %)
1383 (% _msthash="506057" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1384 )))
1385
1386 (% _mstvisible="1" %)
1387 (((
1388 (% _msthash="506262" _msttexthash="974311" _mstvisible="2" style="text-align: left;" %)
1389 No downlink command for this feature.
1390
1391 (% _msthash="506262" _msttexthash="974311" _mstvisible="2" style="text-align: left;" %)
1392
1393 )))
1394
1395 (% _mstvisible="1" style="text-align: left;" %)
1396 == (% _msthash="306956" _msttexthash="281918" _mstvisible="3" %)4.5 Quit AT Command(%%) ==
1397
1398 (% _msthash="315365" _msttexthash="4616456" _mstvisible="1" style="text-align: left;" %)
1399 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1400
1401 (% _mstvisible="1" style="text-align: left;" %)
1402 (% _msthash="315249" _msttexthash="289120" style="color:#4f81bd" %)**AT Command: AT+DISAT**
1403
1404 (% _mstvisible="1" %)
1405 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1406
1407
1408 (% _mstvisible="1" style="text-align: left;" %)
1409 (% _msthash="315250" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1410
1411 (% _msthash="315368" _msttexthash="974311" _mstvisible="1" style="text-align: left;" %)
1412 No downlink command for this feature.
1413
1414
1415 (% _mstvisible="1" style="text-align: left;" %)
1416 == (% _msthash="362752" _msttexthash="334919" _mstvisible="3" %)4.6 Set to sleep mode(%%) ==
1417
1418 (% _msthash="315369" _msttexthash="779688" _mstvisible="1" style="text-align: left;" %)
1419 Feature: Set device to sleep mode
1420
1421 * AT+Sleep=0  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1422 * AT+Sleep=1 : Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1423
1424 (% _mstvisible="1" style="text-align: left;" %)
1425 (% _msthash="315251" _msttexthash="289783" style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1426
1427 (% _mstvisible="1" %)
1428 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1429
1430 (% _mstvisible="1" %)
1431 (% _msthash="315252" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1432
1433 (% _mstvisible="1" %)
1434 * There is no downlink command to set to Sleep mode.
1435
1436 (% _mstvisible="1" %)
1437 == (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) ==
1438
1439 (% _msthash="315372" _msttexthash="2565524" _mstvisible="1" %)
1440 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1441
1442 (% _mstvisible="1" %)
1443 (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1444
1445 (% _mstvisible="1" %)
1446 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1447
1448
1449 (% _mstvisible="1" %)
1450 (% _msthash="315254" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1451
1452 (% _msthash="315375" _msttexthash="2898571" _mstvisible="1" %)
1453 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1454
1455
1456 (% _mstvisible="1" %)
1457 == (% _msthash="376779" _msttexthash="348712" _mstvisible="3" %)4.8 Set Time Sync Mode(%%) ==
1458
1459 (% _mstvisible="1" %)
1460 (((
1461 (% _msthash="506263" _msttexthash="11748321" _mstvisible="2" %)
1462 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1463 )))
1464
1465 (% _mstvisible="1" %)
1466 (((
1467 (% _msthash="506264" _msttexthash="6530264" _mstvisible="2" %)
1468 SYNCMOD is set to 1 by default. If user want to set a different time from LoRaWAN server, user need to set this to 0.
1469 )))
1470
1471 (% _mstvisible="1" %)
1472 (((
1473 (% _mstvisible="2" %)
1474 (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1475 )))
1476
1477 (% _mstvisible="1" %)
1478 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1479
1480
1481 (% _mstvisible="1" %)
1482 (% _msthash="315255" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1483
1484 (% _msthash="315377" _msttexthash="479648" _mstvisible="1" %)
1485 0x28 01 ~/~/ Same As AT+SYNCMOD=1
1486
1487 (% _msthash="315378" _msttexthash="479076" _mstvisible="1" %)
1488 0x28 00 ~/~/ Same As AT+SYNCMOD=0
1489
1490
1491 (% _mstvisible="1" %)
1492 == (% _msthash="536432" _msttexthash="502528" _mstvisible="3" %)4.9 Set Time Sync Interval(%%) ==
1493
1494 (% _msthash="315379" _msttexthash="3065777" _mstvisible="1" %)
1495 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1496
1497 (% _mstvisible="1" %)
1498 (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1499
1500 (% _mstvisible="1" %)
1501 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1502
1503
1504 (% _mstvisible="1" %)
1505 (% _msthash="315257" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1506
1507 (% _msthash="315382" _msttexthash="590044" _mstvisible="1" %)
1508 0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
1509
1510
1511 (% _mstvisible="1" %)
1512 == (% _msthash="927901" _msttexthash="882570" _mstvisible="3" %)4.10 Print data entries base on page.(%%) ==
1513
1514 (% _msthash="315383" _msttexthash="3233334" _mstvisible="1" %)
1515 Feature: Print the sector data from start page to stop page (max is 416 pages).
1516
1517 (% _mstvisible="1" %)
1518 (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
1519
1520 (% _mstvisible="1" %)
1521 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1522
1523
1524 (% _mstvisible="1" %)
1525 (% _msthash="315259" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1526
1527 (% _msthash="315386" _msttexthash="799539" _mstvisible="1" %)
1528 No downlink commands for feature
1529
1530
1531 (% _mstvisible="1" %)
1532 == (% _msthash="788762" _msttexthash="747149" _mstvisible="3" %)4.11 Print last few data entries.(%%) ==
1533
1534 (% _msthash="315387" _msttexthash="1101009" _mstvisible="1" %)
1535 Feature: Print the last few data entries
1536
1537 (% _mstvisible="1" %)
1538 (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1539
1540 (% _mstvisible="1" %)
1541 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1542
1543
1544 (% _mstvisible="1" %)
1545 (% _msthash="315261" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1546
1547 (% _msthash="315390" _msttexthash="799539" _mstvisible="1" %)
1548 No downlink commands for feature
1549
1550
1551 (% _mstvisible="1" %)
1552 == (% _msthash="437814" _msttexthash="408057" _mstvisible="3" %)4.12 Clear Flash Record(%%) ==
1553
1554 (% _msthash="315391" _msttexthash="1609075" _mstvisible="1" %)
1555 Feature: Clear flash storage for data log feature.
1556
1557 (% _mstvisible="1" %)
1558 (% _msthash="315262" _msttexthash="311415" style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1559
1560 (% _mstvisible="1" %)
1561 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1562
1563
1564 (% _mstvisible="1" %)
1565 (% _msthash="315263" _msttexthash="388193" style="color:#4f81bd" %)**Downlink Command: 0xA3**
1566
1567 (% _mstvisible="1" %)
1568 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1569
1570 (% _mstvisible="1" %)
1571 == (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) ==
1572
1573 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1574 Feature: LHT65N will wait for ACK for each uplink, If LHT65N doesn't get ACK from the IoT server, it will consider the message doesn't arrive server and store it. LHT65N keeps sending messages in normal periodically. Once LHT65N gets ACK from a server, it will consider the network is ok and start to send the not-arrive message.
1575
1576
1577 (% _mstvisible="1" %)
1578 (% _msthash="315264" _msttexthash="334256" style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1579
1580 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1581 The default factory setting is 0
1582
1583 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1584 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 171px;" %)(% _msthash="1231737" _msttexthash="251862" _mstvisible="6" %)**Command Example**|=(% _mstvisible="4" style="width: 219px;" %)(% _msthash="1231738" _msttexthash="116025" _mstvisible="6" %)**Function**|=(% _mstvisible="4" style="width: 119px;" %)(% _msthash="1231739" _msttexthash="116831" _mstvisible="6" %)**Response**
1585 (% _mstvisible="3" %)|(% _msthash="1231321" _msttexthash="130455" _mstvisible="4" style="width:171px" %)AT+PNACKMD=1|(% _msthash="1231322" _msttexthash="377026" _mstvisible="4" style="width:219px" %)Poll None-ACK message|(% _msthash="1231323" _msttexthash="14989" _mstvisible="4" style="width:119px" %)OK
1586
1587 (% _mstvisible="1" %)
1588 (% _msthash="315265" _msttexthash="383981" style="color:#4f81bd" %)**Downlink Command: 0x34**
1589
1590 (% _mstvisible="1" %)
1591 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1592
1593 (% _mstvisible="1" %)
1594 = (% _msthash="568737" _msttexthash="502827" _mstvisible="3" %)5. Battery & How to replace(%%) =
1595
1596 (% _mstvisible="1" %)
1597 == (% _msthash="265486" _msttexthash="242073" _mstvisible="3" %)5.1 Battery Type(%%) ==
1598
1599 (% _msthash="315398" _msttexthash="33754799" _mstvisible="1" %)
1600 LHT65N is equipped with a 2400mAH Li-MnO2 (CR17505) battery . The battery is an un-rechargeable battery with low discharge rate targeting for up to 8~~10 years use. This type of battery is commonly used in IoT devices for long-term running, such as water meters.
1601
1602 (% _mstvisible="1" %)
1603 (((
1604 (% _mstvisible="2" %)
1605 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1606 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1607 )))
1608
1609 (% _mstvisible="1" %)
1610 (((
1611 (% _mstvisible="2" %)
1612 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1613
1614 )))
1615
1616 (% _mstvisible="1" %)
1617 == (% _msthash="353795" _msttexthash="326703" _mstvisible="3" %)5.2 Replace Battery(%%) ==
1618
1619 (% _msthash="315399" _msttexthash="11289278" _mstvisible="1" %)
1620 LHT65N has two screws on the back, Unscrew them, and changing the battery inside is ok. The battery is a general CR17450 battery. Any brand should be ok.
1621
1622 (% _mstvisible="1" %)
1623 [[image:image-20220515075440-2.png||_mstalt="429546" _mstvisible="3" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" _mstvisible="3" height="193" width="257"]]
1624
1625
1626 (% _mstvisible="1" %)
1627 == (% _msthash="494650" _msttexthash="462241" _mstvisible="3" %)5.3 Battery Life Analyze(%%) ==
1628
1629 (% _mstvisible="1" %)
1630 (((
1631 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1632 (((
1633 (% _msthash="736723" _msttexthash="35479028" %)
1634 Dragino battery-powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimated battery life:
1635 [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
1636 )))
1637
1638 (((
1639
1640 )))
1641
1642 (((
1643 (% _msthash="736724" _msttexthash="12045098" %)
1644 A full detail test report for LHT65N on different frequency can be found at : [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0>>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
1645 )))
1646
1647
1648 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1649 = (% _msthash="183170" _msttexthash="37921" _mstvisible="3" %)6. FAQ(%%) =
1650
1651 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1652 == (% _msthash="491075" _msttexthash="437463" %)6.1 How to use AT Command?(%%) ==
1653
1654 (((
1655 (% _msthash="736725" _msttexthash="9345674" %)
1656 LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to connect to LHT65 for using AT command, as below.
1657 )))
1658
1659 [[image:image-20220530085651-1.png||_mstalt="429949"]]
1660
1661
1662 (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1663
1664 (% _msthash="506062" _msttexthash="1187732" %)
1665 **✓ (% style="background-color:yellow" %)USB to TTL GND <~-~->GND(%%)**
1666
1667 (% _msthash="506063" _msttexthash="1158313" %)**✓  **(% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1668
1669 (% _msthash="506064" _msttexthash="1175629" %)**✓  **(% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1670
1671 (% _msthash="506065" _msttexthash="1164696" %)**✓  **(% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1672
1673
1674 (((
1675 (% _msthash="736726" _msttexthash="67213055" %)
1676 In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**) (%%)to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout.
1677 )))
1678
1679 (((
1680 (% _msthash="736727" _msttexthash="1907009" %)
1681 Input password and ATZ to activate LHT65N,As shown below:
1682 )))
1683
1684 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1685
1686
1687 (% _msthash="506066" _msttexthash="544869" %)
1688 AT Command List is as below:
1689
1690 (% _msthash="506067" _msttexthash="361920" %)
1691 AT+<CMD>? :  Help on <CMD>
1692
1693 (% _msthash="506068" _msttexthash="243061" %)
1694 AT+<CMD> :  Run <CMD>
1695
1696 (% _msthash="506069" _msttexthash="704197" %)
1697 AT+<CMD>=<value> :  Set the value
1698
1699 (% _msthash="506070" _msttexthash="455676" %)
1700 AT+<CMD>=? :  Get the value
1701
1702 (% _msthash="506071" _msttexthash="670553" %)
1703 AT+DEBUG:  Set more info output
1704
1705 (% _msthash="506072" _msttexthash="485888" %)
1706 ATZ:  Trig a reset of the MCU
1707
1708 (% _msthash="506073" _msttexthash="2068872" %)
1709 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1710
1711 (% _msthash="506074" _msttexthash="689169" %)
1712 AT+DEUI:  Get or Set the Device EUI
1713
1714 (% _msthash="506075" _msttexthash="960414" %)
1715 AT+DADDR:  Get or Set the Device Address
1716
1717 (% _msthash="506076" _msttexthash="1079897" %)
1718 AT+APPKEY:  Get or Set the Application Key
1719
1720 (% _msthash="506077" _msttexthash="1326143" %)
1721 AT+NWKSKEY:  Get or Set the Network Session Key
1722
1723 (% _msthash="506078" _msttexthash="1573000" %)
1724 AT+APPSKEY:  Get or Set the Application Session Key
1725
1726 (% _msthash="506079" _msttexthash="1041729" %)
1727 AT+APPEUI:  Get or Set the Application EUI
1728
1729 (% _msthash="506080" _msttexthash="2104206" %)
1730 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1731
1732 (% _msthash="506081" _msttexthash="3369288" %)
1733 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1734
1735 (% _msthash="506082" _msttexthash="1894529" %)
1736 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1737
1738 (% _msthash="506083" _msttexthash="3864172" %)
1739 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1740
1741 (% _msthash="506084" _msttexthash="1712204" %)
1742 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1743
1744 (% _msthash="506085" _msttexthash="1281202" %)
1745 AT+RX2FQ:  Get or Set the Rx2 window frequency
1746
1747 (% _msthash="506086" _msttexthash="2796781" %)
1748 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1749
1750 (% _msthash="506087" _msttexthash="3285165" %)
1751 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1752
1753 (% _msthash="506088" _msttexthash="3286179" %)
1754 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1755
1756 (% _msthash="506089" _msttexthash="4703803" %)
1757 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1758
1759 (% _msthash="506090" _msttexthash="4704999" %)
1760 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1761
1762 (% _msthash="506091" _msttexthash="1528683" %)
1763 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1764
1765 (% _msthash="506092" _msttexthash="757185" %)
1766 AT+NWKID:  Get or Set the Network ID
1767
1768 (% _msthash="506093" _msttexthash="1156597" %)
1769 AT+FCU:  Get or Set the Frame Counter Uplink
1770
1771 (% _msthash="506094" _msttexthash="1273987" %)
1772 AT+FCD:  Get or Set the Frame Counter Downlink
1773
1774 (% _msthash="506095" _msttexthash="859222" %)
1775 AT+CLASS:  Get or Set the Device Class
1776
1777 (% _msthash="506096" _msttexthash="384852" %)
1778 AT+JOIN:  Join network
1779
1780 (% _msthash="506097" _msttexthash="548626" %)
1781 AT+NJS:  Get the join status
1782
1783 (% _msthash="506098" _msttexthash="2546206" %)
1784 AT+SENDB:  Send hexadecimal data along with the application port
1785
1786 (% _msthash="506099" _msttexthash="1932307" %)
1787 AT+SEND:  Send text data along with the application port
1788
1789 (% _msthash="506100" _msttexthash="3560557" %)
1790 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1791
1792 (% _msthash="506101" _msttexthash="1429701" %)
1793 AT+RECV:  Print last received data in raw format
1794
1795 (% _msthash="506102" _msttexthash="1735981" %)
1796 AT+VER:  Get current image version and Frequency Band
1797
1798 (% _msthash="506103" _msttexthash="1189474" %)
1799 AT+CFM:  Get or Set the confirmation mode (0-1)
1800
1801 (% _msthash="506104" _msttexthash="1718210" %)
1802 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1803
1804 (% _msthash="506105" _msttexthash="1339403" %)
1805 AT+SNR:  Get the SNR of the last received packet
1806
1807 (% _msthash="506106" _msttexthash="1452009" %)
1808 AT+RSSI:  Get the RSSI of the last received packet
1809
1810 (% _msthash="506107" _msttexthash="2768142" %)
1811 AT+TDC:  Get or set the application data transmission interval in ms
1812
1813 (% _msthash="506108" _msttexthash="1083914" %)
1814 AT+PORT:  Get or set the application port
1815
1816 (% _msthash="506109" _msttexthash="622440" %)
1817 AT+DISAT:  Disable AT commands
1818
1819 (% _msthash="506110" _msttexthash="868361" %)
1820 AT+PWORD:  Set password, max 9 digits
1821
1822 (% _msthash="506111" _msttexthash="2210299" %)
1823 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1824
1825 (% _msthash="506112" _msttexthash="2113462" %)
1826 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1827
1828 (% _msthash="506113" _msttexthash="2087423" %)
1829 AT+PDTA:  Print the sector data from start page to stop page
1830
1831 (% _msthash="506114" _msttexthash="1063127" %)
1832 AT+PLDTA:  Print the last few sets of data
1833
1834 (% _msthash="506115" _msttexthash="1999426" %)
1835 AT+CLRDTA:  Clear the storage, record position back to 1st
1836
1837 (% _msthash="506116" _msttexthash="442130" %)
1838 AT+SLEEP:  Set sleep mode
1839
1840 (% _msthash="506117" _msttexthash="1080222" %)
1841 AT+EXT:  Get or Set external sensor model
1842
1843 (% _msthash="506118" _msttexthash="1309490" %)
1844 AT+BAT:  Get the current battery voltage in mV
1845
1846 (% _msthash="506119" _msttexthash="813891" %)
1847 AT+CFG:  Print all configurations
1848
1849 (% _msthash="506120" _msttexthash="551707" %)
1850 AT+WMOD:  Get or Set Work Mode
1851
1852 (% _msthash="506121" _msttexthash="2631499" %)
1853 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1854
1855 (% _msthash="506122" _msttexthash="3907150" %)
1856 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1857
1858 (% _msthash="506123" _msttexthash="854620" %)
1859 AT+SETCNT:  Set the count at present
1860
1861 (% _msthash="506124" _msttexthash="2554877" %)
1862 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1863
1864 (% _msthash="506125" _msttexthash="771849" %)
1865 AT+RPL:  Get or set response level
1866
1867 (% _msthash="506126" _msttexthash="1484314" %)
1868 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1869
1870 (% _msthash="506127" _msttexthash="741728" %)
1871 AT+LEAPSEC:  Get or Set Leap Second
1872
1873 (% _msthash="506128" _msttexthash="1694017" %)
1874 AT+SYNCMOD:  Get or Set time synchronization method
1875
1876 (% _msthash="506129" _msttexthash="2235948" %)
1877 AT+SYNCTDC:  Get or set time synchronization interval in day
1878
1879 (% _msthash="506130" _msttexthash="425542" %)
1880 AT+PID:  Get or set the PID
1881
1882
1883 == (% _msthash="1616654" _msttexthash="1555359" %)6.2 Where to use AT commands and Downlink commands(%%) ==
1884
1885 (% _msthash="506131" _msttexthash="14585714" %)
1886 AT commands：
1887
1888 [[image:image-20220620153708-1.png||height="603" width="723"]]
1889
1890 (% _msthash="506132" _msttexthash="337922" %)
1891 Downlink commands:
1892
1893
1894 (% _msthash="506133" _msttexthash="33046" %)
1895 **TTN:**
1896
1897 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1898
1899
1900 (% _msthash="506134" _msttexthash="11113791" %)
1901 **Helium：**
1902
1903 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1904
1905
1906 (% _msthash="506135" _msttexthash="4159844" %)
1907 **Chirpstack:The downlink window will not be displayed until the network is accessed**
1908
1909 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1910
1911 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1912
1913
1914 (% _msthash="506136" _msttexthash="39286" %)
1915 **Aws:**
1916
1917 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1918
1919
1920 == (% _msthash="1220570" _msttexthash="33199257" %)6.3 How to change the uplink interval？(%%) ==
1921
1922 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/||_msthash="506137" _msttexthash="5712018"]]
1923
1924
1925 (% _msthash="536757" _msttexthash="1874951" %)
1926 == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1927
1928 [[image:image-20220615153355-1.png]]
1929
1930 [[image:image-20220620154900-5.jpeg||height="427" width="570"]]
1931
1932 (% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1933
1934 (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
1935
1936 (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1937
1938
1939 To switch from download mode to command mode, press reset key
1940
1941
1942 (((
1943 (% _msthash="736728" _msttexthash="67213055" %)
1944 (((
1945 In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600** (%%)to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:(% style="color:red" %)**123456**)(%%) to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout.
1946 )))
1947 )))
1948
1949 (((
1950 (% _msthash="736729" _msttexthash="1907009" %)
1951 Input password and ATZ to activate LHT65N,As shown below:
1952
1953 [[image:image-20220615154519-3.png||height="672" width="807"]]
1954
1955
1956 )))
1957
1958 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1959
1960
1961 [[image:image-20220615153355-1.png]]
1962
1963 (% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1964
1965 (% style="background-color:yellow" %)**4  < - ->  3.3V  < - ->  Blue**
1966
1967 (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
1968
1969 (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1970
1971 [[image:image-20220620160241-6.jpeg||height="428" width="571"]]
1972
1973 Press reset after connecting the 4boot cable to enter the download mode.
1974
1975 [[image:image-20220620160516-7.png||height="435" width="435"]]
1976
1977
1978 (% _mstmutation="1" %)**Step1**(%%): Install TremoProgrammer  first.
1979
1980 [[image:image-20220615170542-5.png]]
1981
1982
1983 (% _msthash="506146" _msttexthash="52173160" %)
1984 (% _istranslated="1" %)**Step2**(%%)：Download the LHT65N image files.
1985
1986
1987 (% _msthash="506147" _msttexthash="188083584" %)
1988 (% _istranslated="1" %)**Step3：**(%%)Select the serial port and baud rate of the device and the firmware to be upgraded.
1989
1990 [[image:image-20220615171334-6.png]]
1991
1992
1993 (% _istranslated="1" _mstmutation="1" %)**Step4：**(%%)Click Start
1994
1995 [[image:image-20220620160723-8.png]]
1996 )))
1997
1998 (% _mstvisible="1" %)
1999 = (% _msthash="183170" _msttexthash="13740740" _mstvisible="3" %)7. (%%)Order Info =
2000
2001 (% _mstvisible="1" %)
2002 (((
2003 (% _msthash="506267" _msttexthash="432432" _mstvisible="2" %)
2004 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
2005 )))
2006
2007 (% _mstvisible="1" %)
2008 (((
2009 (% _msthash="506268" _msttexthash="686946" _mstvisible="2" %)
2010 (% _mstvisible="4" style="color:#4f81bd" %)**XX **(%%): The default frequency band
2011 )))
2012
2013 (% _mstvisible="1" %)
2014 * (% _mstvisible="3" %)
2015 (((
2016 (% _msthash="903327" _msttexthash="393341" _mstvisible="4" %)
2017 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
2018 )))
2019 * (% _mstvisible="3" %)
2020 (((
2021 (% _msthash="903328" _msttexthash="394576" _mstvisible="4" %)
2022 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
2023 )))
2024 * (% _mstvisible="3" %)
2025 (((
2026 (% _msthash="903329" _msttexthash="393913" _mstvisible="4" %)
2027 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
2028 )))
2029 * (% _mstvisible="3" %)
2030 (((
2031 (% _msthash="903330" _msttexthash="399087" _mstvisible="4" %)
2032 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
2033 )))
2034 * (% _mstvisible="3" %)
2035 (((
2036 (% _msthash="903331" _msttexthash="395109" _mstvisible="4" %)
2037 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
2038 )))
2039 * (% _mstvisible="3" %)
2040 (((
2041 (% _msthash="903332" _msttexthash="400842" _mstvisible="4" %)
2042 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
2043 )))
2044 * (% _mstvisible="3" %)
2045 (((
2046 (% _msthash="903333" _msttexthash="396487" _mstvisible="4" %)
2047 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
2048 )))
2049 * (% _mstvisible="3" %)
2050 (((
2051 (% _msthash="903334" _msttexthash="390923" _mstvisible="4" %)
2052 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
2053 )))
2054
2055 (% _mstvisible="1" %)
2056 (((
2057 (% _msthash="506269" _msttexthash="443495" _mstvisible="2" %)
2058 (% _mstvisible="4" style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
2059 )))
2060
2061 (% _mstvisible="1" %)
2062 * (% _mstvisible="3" %)
2063 (((
2064 (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
2065 (% style="color:red" %)**E3**(%%): External Temperature Probe
2066
2067
2068 )))
2069
2070 (% _mstvisible="1" %)
2071 = (% _msthash="233363" _msttexthash="13823550" _mstvisible="3" %)8. (%%)Packing Info =
2072
2073 (% _mstvisible="1" %)
2074 (((
2075 (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
2076
2077
2078 (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
2079 (% _mstvisible="3" %)**Package Includes**(%%):
2080 )))
2081
2082 (% _mstvisible="1" %)
2083 * (% _mstvisible="3" %)
2084 (((
2085 (% _msthash="903336" _msttexthash="1033149" _mstvisible="4" %)
2086 LHT65N Temperature & Humidity Sensor x 1
2087 )))
2088 * (% _mstvisible="3" %)
2089 (((
2090 (% _msthash="903338" _msttexthash="544167" _mstvisible="4" %)
2091 Optional external sensor
2092 )))
2093
2094 (% _mstvisible="1" %)
2095 (((
2096 (% _msthash="506271" _msttexthash="403858" _mstvisible="2" %)
2097 (% _mstvisible="3" %)**Dimension and weight**(%%):
2098 )))
2099
2100 (% _mstvisible="1" %)
2101 * (% _mstvisible="3" %)
2102 (((
2103 (% _msthash="903339" _msttexthash="391807" _mstvisible="4" %)
2104 Device Size:  10 x 10 x 3.5 cm
2105 )))
2106 * (% _mstvisible="3" %)
2107 (((
2108 (% _msthash="903340" _msttexthash="285298" _mstvisible="4" %)
2109 Device Weight: 120.5g
2110 )))
2111
2112 (% _mstvisible="3" %)
2113 (((
2114
2115 )))
2116
2117 = (% _msthash="184782" _msttexthash="16007771" %)9. Reference material(%%) =
2118
2119 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor||_msthash="504975" _msttexthash="51420512"]]
2120
2121 = (% _msthash="216320" _msttexthash="10002096" %)10. (%%)FCC Warning =
2122
2123 (% _mstvisible="1" %)
2124 (((
2125 (% _msthash="506272" _msttexthash="6034353" _mstvisible="2" %)
2126 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
2127 )))
2128
2129 (% _mstvisible="1" %)
2130 (((
2131 (% _msthash="506273" _msttexthash="44097638" _mstvisible="2" %)
2132 (1) This device may not cause harmful interference；
2133 )))
2134
2135 (% _mstvisible="1" %)
2136 (((
2137 (% _msthash="506274" _msttexthash="7559773" _mstvisible="2" %)
2138 (2) this device must accept any interference received, including interference that may cause undesired operation.
2139 )))

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