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Version 120.15 by Xiaoling on 2022/06/09 18:30
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6 (% _msthash="315237" _msttexthash="1697033" _mstvisible="3" %)**LHT65N LoRaWAN Temperature & Humidity Sensor Manual**
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12 (% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
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14 {{toc/}}
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20 = (% _msthash="277498" _msttexthash="253045" _mstvisible="3" %)1. Introduction(%%) =
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23 == (% _msthash="1532895" _msttexthash="1426958" _mstvisible="3" %)1.1 What is LHT65N Temperature & Humidity Sensor(%%) ==
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26 (((
27 (% _msthash="506051" _msttexthash="24333127" _mstvisible="2" %)
28 The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% _mstvisible="4" style="color:#4f81bd" %)**built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% _mstvisible="4" style="color:#4f81bd" %)**Temperature Sensor**(% _mstvisible="3" %)**.**
29 )))
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32 (((
33 (% _msthash="506052" _msttexthash="66005810" _mstvisible="2" %)
34 The LHT65N allows users to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
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39 (% _msthash="506053" _msttexthash="4298047" _mstvisible="2" %)
40 LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
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46 LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
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52 LHT65N supports (% _mstvisible="4" style="color:#4f81bd" %)**Datalog Feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
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57 (% _msthash="506056" _msttexthash="5557097" _mstvisible="2" %)
58 *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
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62 )))
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64 (% _mstvisible="1" %)
65 == (% _msthash="182559" _msttexthash="163319" _mstvisible="3" %)1.2 Features(%%) ==
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68 * Wall mountable
69 * LoRaWAN v1.0.3 Class A protocol
70 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
71 * AT Commands to change parameters
72 * Remote configure parameters via LoRaWAN Downlink
73 * Firmware upgradeable via program port
74 * Built-in 2400mAh battery for up to 10 years of use.
75 * Built-in Temperature & Humidity sensor
76 * Optional External Sensors
77 * Tri-color LED to indicate working status
78 * Datalog feature
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80 (% _mstvisible="1" %)
81 == (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3 Specification(%%) ==
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89 (% _msthash="506057" _msttexthash="671437" _mstvisible="4" %)**Built-in Temperature Sensor:**
90 )))
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92 (% _mstvisible="1" %)
93 * (% _mstvisible="3" %)
94 (((
95 (% _msthash="902993" _msttexthash="294424" _mstvisible="4" %)
96 Resolution: 0.01 °C
97 )))
98 * (% _mstvisible="3" %)
99 (((
100 (% _msthash="902994" _msttexthash="690664" _mstvisible="4" %)
101 Accuracy Tolerance : Typ ±0.3 °C
102 )))
103 * (% _mstvisible="3" %)
104 (((
105 (% _msthash="902995" _msttexthash="504647" _mstvisible="4" %)
106 Long Term Drift: < 0.02 °C/yr
107 )))
108 * (% _mstvisible="3" %)
109 (((
110 (% _msthash="902996" _msttexthash="478257" _mstvisible="4" %)
111 Operating Range: -40 ~~ 85 °C
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115 (((
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120 (% _msthash="506058" _msttexthash="544453" _mstvisible="4" %)**Built-in Humidity Sensor:**
121 )))
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123 (% _mstvisible="1" %)
124 * (% _mstvisible="3" %)
125 (((
126 (% _msthash="902997" _msttexthash="282438" _mstvisible="4" %)
127 Resolution: 0.04 %RH
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129 * (% _mstvisible="3" %)
130 (((
131 (% _msthash="902998" _msttexthash="628771" _mstvisible="4" %)
132 Accuracy Tolerance : Typ ±3 %RH
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134 * (% _mstvisible="3" %)
135 (((
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137 Long Term Drift: < 0.02 °C/yr
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139 * (% _mstvisible="3" %)
140 (((
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142 Operating Range: 0 ~~ 96 %RH
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151 (% _msthash="506059" _msttexthash="680537" _mstvisible="4" %)**External Temperature Sensor:**
152 )))
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154 (% _mstvisible="1" %)
155 * (% _mstvisible="3" %)
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157 (% _msthash="903001" _msttexthash="332254" _mstvisible="4" %)
158 Resolution: 0.0625 °C
159 )))
160 * (% _mstvisible="3" %)
161 (((
162 (% _msthash="903002" _msttexthash="782600" _mstvisible="4" %)
163 ±0.5°C accuracy from -10°C to +85°C
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165 * (% _mstvisible="3" %)
166 (((
167 (% _msthash="903003" _msttexthash="729482" _mstvisible="4" %)
168 ±2°C accuracy from -55°C to +125°C
169 )))
170 * (% _mstvisible="3" %)
171 (((
172 (% _msthash="903004" _msttexthash="592540" _mstvisible="4" %)
173 Operating Range: -55 °C ~~ 125 °C
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181 = (% _msthash="655759" _msttexthash="618618" _mstvisible="3" %)2. Connect LHT65N to IoT Server(%%) =
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184 == (% _msthash="462371" _msttexthash="410332" _mstvisible="3" %)2.1 How does LHT65N work?(%%) ==
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188 (% _msthash="506060" _msttexthash="28254538" _mstvisible="2" %)
189 LHT65N is configured as LoRaWAN OTAA Class A mode by default. Each LHT65N is shipped with a worldwide unique set of OTAA keys. To use LHT65N in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65N.
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195 If LHT65N is under the coverage of this LoRaWAN network. LHT65N can join the LoRaWAN network automatically. After successfully joining, LHT65N will start to measure environment temperature and humidity, and start to transmit sensor data to the LoRaWAN server. The default period for each uplink is 20 minutes.
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202 == (% _msthash="514384" _msttexthash="458666" _mstvisible="3" %)2.2 How to Activate LHT65N?(%%) ==
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205 The LHT65N has two working modes:
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208 * **Deep Sleep Mode**: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
209 * **Working Mode**: In this mode, LHT65N works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65 will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode. 
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214 The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
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218 [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
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221 [[image:image-20220525110604-2.png||_mstalt="427531" _mstvisible="3"]]
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224 (% _mstvisible="1" %)
225 == (% _msthash="882726" _msttexthash="838526" _mstvisible="3" %)2.3 Example to join LoRaWAN network(%%) ==
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227 (% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
228 This section shows an example of how to join the TTN V3 LoRaWAN IoT server. Use with other LoRaWAN IoT servers is of a similar procedure.
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231 [[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
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234 Assume the LPS8N is already set to connect to [[TTN V3 network>>url:https://eu1.cloud.thethings.network||_mstvisible="2"]], So it provides network coverage for LHT65N. Next we need to add the LHT65N device in TTN V3:
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238 === (% _msthash="670592" _msttexthash="634075" _mstvisible="3" %)2.3.1 Step 1: Create Device n TTN(%%) ===
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240 (% _msthash="315242" _msttexthash="1601782" _mstvisible="1" %)
241 Create a device in TTN V3 with the OTAA keys from LHT65N.
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243 (% _msthash="315243" _msttexthash="3694444" _mstvisible="1" %)
244 Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
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247 [[image:image-20220522232812-2.png||_mstalt="428467" _mstvisible="3" height="219" width="279"]]
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249 (% _msthash="315244" _msttexthash="3659149" _mstvisible="1" %)
250 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
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253 Add APP EUI in the application.
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256 [[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
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259 [[image:image-20220522232932-4.png||_mstalt="430157" _mstvisible="3"]]
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262 [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
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264 (% _msthash="315246" _msttexthash="878800" _mstvisible="1" %)
265 Note: LHT65N use same payload as LHT65.
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268 [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
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271 (% _msthash="315247" _msttexthash="595543" _mstvisible="1" %)
272 Input APP EUI,  APP KEY and DEV EUI:
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275 [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
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279 (% _mstvisible="1" %)
280 === (% _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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282 (% _msthash="315248" _msttexthash="14452321" _mstvisible="1" %)
283 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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286 [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
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291 == (% _msthash="320879" _msttexthash="294970" _mstvisible="3" %)2.4 Uplink Payload(%%) ==
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293 (% _msthash="315249" _msttexthash="7722962" _mstvisible="1" %)
294 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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296 (% _msthash="315250" _msttexthash="1322711" _mstvisible="1" %)
297 After each uplink, the (% _mstvisible="3" style="color:blue" %)**BLUE LED**(%%) will blink once.
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299 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:426px" %)
300 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
301 (((
302 (% _mstvisible="6" %)
303 (% _msthash="1817478" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
304 )))|=(% _mstvisible="4" style="width: 39px;" %)(% _mstvisible="5" %)
305 (((
306 (% _mstvisible="6" %)
307 (% _msthash="1817479" _msttexthash="4550" _mstvisible="8" %)**2**
308 )))|=(% _mstvisible="4" style="width: 100px;" %)(% _mstvisible="5" %)
309 (((
310 (% _mstvisible="6" %)
311 (% _msthash="1817480" _msttexthash="4550" _mstvisible="8" %)**2**
312 )))|=(% _mstvisible="4" style="width: 77px;" %)(% _mstvisible="5" %)
313 (((
314 (% _mstvisible="6" %)
315 (% _msthash="1817481" _msttexthash="4550" _mstvisible="8" %)**2**
316 )))|=(% _mstvisible="4" style="width: 47px;" %)(% _mstvisible="5" %)
317 (((
318 (% _mstvisible="6" %)
319 (% _msthash="1817482" _msttexthash="4459" _mstvisible="8" %)**1**
320 )))|=(% _mstvisible="4" style="width: 51px;" %)(% _mstvisible="5" %)
321 (((
322 (% _mstvisible="6" %)
323 (% _msthash="1817483" _msttexthash="4732" _mstvisible="8" %)**4**
324 )))
325 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
326 (((
327 (% _mstvisible="6" %)
328 (% _msthash="1817484" _msttexthash="60203" _mstvisible="8" %)**Value**
329 )))|(% _mstvisible="4" style="width:39px" %)(% _mstvisible="5" %)
330 (((
331 (% _mstvisible="6" %)
332 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo" _msthash="1817485" _msttexthash="22594" _mstvisible="7"]]
333 )))|(% _mstvisible="4" style="width:100px" %)(% _mstvisible="5" %)
334 (((
335 (% _mstvisible="6" %)
336 (((
337 (% _mstvisible="7" %)
338 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
339 )))
340 )))|(% _mstvisible="4" style="width:77px" %)(% _mstvisible="5" %)
341 (((
342 (% _mstvisible="6" %)
343 (((
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345 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2224743" _msttexthash="105872" _mstvisible="8"]]
346 )))
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348 (% _mstvisible="6" %)
349 (((
350 (% _mstvisible="7" %)
351 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429" _mstvisible="8"]]
352 )))
353 )))|(% _mstvisible="4" style="width:47px" %)(% _mstvisible="5" %)
354 (((
355 (% _mstvisible="6" %)
356 [[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331" _mstvisible="7"]] #
357 )))|(% _mstvisible="4" style="width:51px" %)(% _mstvisible="5" %)
358 (((
359 (% _mstvisible="6" %)
360 [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
361 )))
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363 (% _mstvisible="1" %)
364 * The First 6 bytes: has fix meanings for every LHT65N.
365 * The 7th byte (EXT #): defines the external sensor model.
366 * 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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371 (% _mstvisible="1" %)
372 === (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) ===
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374 (% _msthash="315251" _msttexthash="9786491" _mstvisible="1" %)
375 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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377 (% _msthash="315252" _msttexthash="3928483" _mstvisible="1" %)
378 Below is the position to put the decoder and LHT65N decoder can be download from here:
379
380 (% _mstvisible="1" %)
381 [[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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383 (% _mstvisible="1" %)
384 [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
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388 (% _mstvisible="1" %)
389 === (% _msthash="411411" _msttexthash="383656" _mstvisible="3" %)2.4.2 BAT-Battery Info(%%) ===
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391 (% _msthash="315254" _msttexthash="3122912" _mstvisible="1" %)
392 These two bytes of BAT include the battery state and the actually voltage
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394 (% _mstvisible="1" %)
395 [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
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397 (% _mstvisible="1" %)
398 [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
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400 (% _msthash="315255" _msttexthash="871611" _mstvisible="1" %)
401 Check the battery voltage for LHT65N.
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403 (% _mstvisible="1" %)
404 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
405 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
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407
408
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410 (% _mstvisible="1" %)
411 === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
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413 (% _mstvisible="1" %)
414 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
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416 (% _mstvisible="1" %)
417 * Temperature:  0x0ABB/100=27.47℃
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419 (% _mstvisible="1" %)
420 [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
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422 (% _mstvisible="1" %)
423 * Temperature:  (0xF5C6-65536)/100=-26.18℃
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425
426
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428 (% _mstvisible="1" %)
429 === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
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431 (% _mstvisible="1" %)
432 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
433
434 (% _mstvisible="1" %)
435 * Humidity:    0x025C/10=60.4%
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438
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440 (% _mstvisible="1" %)
441 === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
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443 (% _msthash="315256" _msttexthash="552240" _mstvisible="1" %)
444 Bytes for External Sensor:
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446 (% _mstvisible="1" %)
447 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
448
449
450 (% _mstvisible="1" %)
451 === (% _msthash="221429" _msttexthash="200655" _mstvisible="3" %)2.4.6 Ext value(%%) ===
452
453 (% _mstvisible="1" %)
454 ==== (% _msthash="1005901" _msttexthash="877578" _mstvisible="3" %)2.4.6.1 Ext~=1, E3 Temperature Sensor(%%) ====
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456 (% _mstvisible="1" %)
457 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
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460 (% _mstvisible="1" %)
461 * DS18B20 temp=0x0ADD/100=27.81℃
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463 (% _msthash="315257" _msttexthash="1038479" _mstvisible="1" %)
464 The last 2 bytes of data are meaningless
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466 (% _mstvisible="1" %)
467 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
468
469
470 (% _mstvisible="1" %)
471 * External temperature= (0xF54F-65536)/100=-27.37℃
472
473 (% _mstvisible="1" %)
474 (((
475 (% _msthash="506063" _msttexthash="1038479" _mstvisible="2" %)
476 The last 2 bytes of data are meaningless
477 )))
478
479 (% _mstvisible="1" %)
480 (((
481 (% _msthash="506064" _msttexthash="21185632" _mstvisible="2" %)
482 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
483 )))
484
485
486
487 (% _mstvisible="1" %)
488 ==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
489
490 (% _msthash="315258" _msttexthash="41539368" _mstvisible="1" %)
491 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:
492
493 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
494 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 96px;" %)(% _mstvisible="5" %)
495 (((
496 (% _mstvisible="6" %)
497 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
498 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
499 (((
500 (% _mstvisible="6" %)
501 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
502 )))|=(% _mstvisible="4" style="width: 99px;" %)(% _mstvisible="5" %)
503 (((
504 (% _mstvisible="6" %)
505 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
506 )))|=(% _mstvisible="4" style="width: 132px;" %)(% _mstvisible="5" %)
507 (((
508 (% _mstvisible="6" %)
509 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
510 )))|=(% _mstvisible="4" style="width: 54px;" %)(% _mstvisible="5" %)
511 (((
512 (% _mstvisible="6" %)
513 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
514 )))|=(% _mstvisible="4" style="width: 64px;" %)(% _mstvisible="5" %)
515 (((
516 (% _mstvisible="6" %)
517 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
518 )))
519 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
520 (((
521 (% _mstvisible="6" %)
522 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
523 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
524 (((
525 (% _mstvisible="6" %)
526 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
527 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
528 (((
529 (% _mstvisible="6" %)
530 (((
531 (% _mstvisible="7" %)
532 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
533 )))
534
535 (% _mstvisible="6" %)
536 (((
537 (% _mstvisible="7" %)
538 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
539 )))
540 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
541 (((
542 (% _mstvisible="6" %)
543 (((
544 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
545 BAT Status &
546 )))
547
548 (% _mstvisible="6" %)
549 (((
550 (% _mstvisible="7" %)
551 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
552 )))
553 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
554 (((
555 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
556 Status & Ext
557 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
558 (((
559 (% _mstvisible="6" %)
560 (((
561 (% _mstvisible="7" %)
562 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
563 )))
564 )))
565
566
567 (% _mstvisible="1" %)
568 * (% _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**
569
570 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:469px" %)
571 (% _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]
572 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
573 (((
574 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
575 BAT Status
576
577 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
578 00(b): Ultra Low ( BAT <= 2.50v)
579
580 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
581 01(b): Low  (2.50v <=BAT <= 2.55v)
582
583 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
584 10(b): OK   (2.55v <= BAT <=2.65v)
585
586 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
587 11(b): Good   (BAT >= 2.65v)
588 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
589 (((
590 (% _mstvisible="6" %)
591 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
592
593 (% _mstvisible="6" %)
594
595 )))
596
597
598 (% _mstvisible="1" %)
599 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
600
601 (% _mstvisible="1" %)
602 [[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
603
604 (% _mstvisible="1" %)
605 * Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
606 * 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.
607 * 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)
608
609
610
611 (% _mstvisible="1" %)
612 == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
613
614 (% _msthash="315259" _msttexthash="20933341" _mstvisible="1" %)
615 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:
616
617 (% _mstvisible="1" %)
618 (((
619 (% _msthash="506065" _msttexthash="4753983" _mstvisible="2" %)
620 (% _mstvisible="3" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
621 )))
622
623 (% _mstvisible="1" %)
624 (((
625 (% _msthash="506066" _msttexthash="14696682" _mstvisible="2" %)
626 (% _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.
627 )))
628
629 (% _mstvisible="1" %)
630 (((
631 (% _msthash="506067" _msttexthash="180297" _mstvisible="2" %)
632 Add Datacake:
633 )))
634
635 (% _mstvisible="1" %)
636 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
637
638
639 (% _msthash="315260" _msttexthash="750178" _mstvisible="1" %)
640 Select default key as Access Key:
641
642 (% _mstvisible="1" %)
643 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
644
645 (% _msthash="315261" _msttexthash="2134964" _mstvisible="1" %)
646 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
647
648 (% _mstvisible="1" %)
649 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
650
651 (% _mstvisible="1" %)
652 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
653
654
655
656 (% _mstvisible="1" %)
657 == (% _msthash="350454" _msttexthash="323544" _mstvisible="3" %)2.6 Datalog Feature(%%) ==
658
659 (% _msthash="315262" _msttexthash="32283004" _mstvisible="1" %)
660 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.
661
662
663 (% _mstvisible="1" %)
664 === (% _msthash="886158" _msttexthash="842426" _mstvisible="3" %)2.6.1 Ways to get datalog via LoRaWAN(%%) ===
665
666 (% _msthash="315263" _msttexthash="409604" _mstvisible="1" %)
667 There are two methods:
668
669 (% _mstvisible="1" %)
670 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
671 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.
672
673
674
675 (% _mstvisible="1" %)
676 === (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
677
678 (% _msthash="315264" _msttexthash="1182285" _mstvisible="1" %)
679 LHT65N uses Unix TimeStamp format based on
680
681 (% _mstvisible="1" %)
682 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
683
684
685 (% _mstvisible="1" %)
686 (((
687 (% _msthash="506068" _msttexthash="2717234" _mstvisible="2" %)
688 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
689 )))
690
691 (% _mstvisible="1" %)
692 (((
693 (% _msthash="506069" _msttexthash="709813" _mstvisible="2" %)
694 Below is the converter example
695 )))
696
697 (% _mstvisible="1" %)
698 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
699
700 (% _msthash="315265" _msttexthash="15137317" _mstvisible="1" %)
701 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
702
703
704 (% _mstvisible="1" %)
705 === (% _msthash="359294" _msttexthash="332748" _mstvisible="3" %)2.6.3 Set Device Time(%%) ===
706
707 (% _mstvisible="1" %)
708 (((
709 (% _msthash="506070" _msttexthash="4521946" _mstvisible="2" %)
710 There are two ways to set device’s time:
711 )))
712
713 (% _mstvisible="1" %)
714 (((
715 (% _mstvisible="2" %)
716 (% _msthash="506071" _msttexthash="1498471" _mstvisible="4" %)**1. Through LoRaWAN MAC Command (Default settings)**
717 )))
718
719 (% _mstvisible="1" %)
720 (((
721 (% _msthash="506072" _msttexthash="2126267" _mstvisible="2" %)
722 User need to set SYNCMOD=1 to enable sync time via MAC command.
723 )))
724
725 (% _mstvisible="1" %)
726 (((
727 (% _msthash="506073" _msttexthash="54430324" _mstvisible="2" %)
728 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).
729 )))
730
731 (% _mstvisible="1" %)
732 (((
733 (% _msthash="506074" _msttexthash="92531127" _mstvisible="2" %)
734 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.
735 )))
736
737 (% _mstvisible="1" %)
738 (((
739 (% _mstvisible="2" %)
740
741 )))
742
743 (% _mstvisible="1" %)
744 (((
745 (% _mstvisible="2" %)
746 (% _msthash="506075" _msttexthash="329719" _mstvisible="4" %)**2. Manually Set Time**
747 )))
748
749 (% _mstvisible="1" %)
750 (((
751 (% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
752 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
753
754 (% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
755
756 )))
757
758 (% _mstvisible="1" %)
759 === (% _msthash="460759" _msttexthash="430001" _mstvisible="3" %)2.6.4 Poll sensor value(%%) ===
760
761 (% _msthash="315266" _msttexthash="4955821" _mstvisible="1" %)
762 User can poll sensor value based on timestamps from the server. Below is the downlink command.
763
764 (% _mstvisible="1" %)
765 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
766
767 (% _mstvisible="1" %)
768 (((
769 (% _msthash="506077" _msttexthash="14670916" _mstvisible="2" %)
770 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.
771 )))
772
773 (% _mstvisible="1" %)
774 (((
775 (% _mstvisible="2" %)
776 For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(% _mstvisible="3" style="display:none" %)
777 )))
778
779 (% _mstvisible="1" %)
780 (((
781 (% _msthash="506078" _msttexthash="6907459" _mstvisible="2" %)
782 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
783 )))
784
785 (% _mstvisible="1" %)
786 (((
787 (% _msthash="506079" _msttexthash="23531573" _mstvisible="2" %)
788 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
789 )))
790
791
792 (% _mstvisible="1" %)
793 === (% _msthash="650923" _msttexthash="614185" _mstvisible="3" %)2.6.5 Datalog Uplink payload(%%) ===
794
795 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
796 The Datalog poll reply uplink will use below payload format.
797
798 (% _mstvisible="1" %)
799 (((
800 (% _mstvisible="2" %)
801 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
802 )))
803
804 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
805 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 93px;" %)(% _mstvisible="5" %)
806 (((
807 (% _mstvisible="6" %)
808 (((
809 (% _mstvisible="7" %)
810 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
811 )))
812 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
813 (((
814 (% _mstvisible="6" %)
815 (((
816 (% _mstvisible="7" %)
817 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
818 )))
819 )))|=(% _mstvisible="4" style="width: 102px;" %)(% _mstvisible="5" %)
820 (((
821 (% _mstvisible="6" %)
822 (((
823 (% _mstvisible="7" %)
824 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
825 )))
826 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
827 (((
828 (% _mstvisible="6" %)
829 (((
830 (% _mstvisible="7" %)
831 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
832 )))
833 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
834 (((
835 (% _mstvisible="6" %)
836 (((
837 (% _mstvisible="7" %)
838 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
839 )))
840 )))|=(% _mstvisible="4" style="width: 48px;" %)(% _mstvisible="5" %)
841 (((
842 (% _mstvisible="6" %)
843 (((
844 (% _mstvisible="7" %)
845 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
846 )))
847 )))
848 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
849 (((
850 (% _mstvisible="6" %)
851 (((
852 (% _mstvisible="7" %)
853 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
854 )))
855 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
856 (((
857 (% _mstvisible="6" %)
858 (((
859 (% _mstvisible="7" %)
860 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
861 )))
862 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
863 (((
864 (% _mstvisible="6" %)
865 (((
866 (% _mstvisible="7" %)
867 (((
868 (% _mstvisible="8" %)
869 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
870 )))
871 )))
872
873 (% _mstvisible="6" %)
874 (((
875 (% _mstvisible="7" %)
876 (((
877 (% _mstvisible="8" %)
878 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
879 )))
880 )))
881 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
882 (((
883 (% _mstvisible="6" %)
884 (((
885 (% _mstvisible="7" %)
886 (((
887 (% _mstvisible="8" %)
888 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
889 )))
890 )))
891
892 (% _mstvisible="6" %)
893 (((
894 (% _mstvisible="7" %)
895 (((
896 (% _mstvisible="8" %)
897 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
898 )))
899 )))
900 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
901 (((
902 (% _mstvisible="6" %)
903 (((
904 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
905 Poll message flag & Ext
906 )))
907 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
908 (((
909 (% _mstvisible="6" %)
910 (((
911 (% _mstvisible="7" %)
912 (((
913 (% _mstvisible="8" %)
914 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
915 )))
916 )))
917
918 (% _mstvisible="6" %)
919 (((
920 (% _mstvisible="7" %)
921 (((
922 (% _mstvisible="8" %)
923
924 )))
925 )))
926 )))
927
928 (% _mstvisible="1" %)
929 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
930
931 (% _mstvisible="1" %)
932 [[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
933
934 (% _mstvisible="1" %)
935 (((
936 (% _mstvisible="2" %)
937 (((
938 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
939 Poll Message Flag: 1: This message is a poll message reply.
940 )))
941 )))
942
943 (% _mstvisible="1" %)
944 * (% _mstvisible="3" %)
945 (((
946 (% _mstvisible="4" %)
947 (((
948 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
949 Poll Message Flag is set to 1.
950 )))
951 )))
952 * (% _mstvisible="3" %)
953 (((
954 (% _mstvisible="4" %)
955 (((
956 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
957 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
958 )))
959 )))
960
961 (% _mstvisible="1" %)
962 (((
963 (% _mstvisible="2" %)
964 (((
965 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
966
967
968 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
969 For example, in US915 band, the max payload for different DR is:
970 )))
971 )))
972
973 (% _mstvisible="1" %)
974 (((
975 (% _mstvisible="2" %)
976 (((
977 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
978 a) DR0: max is 11 bytes so one entry of data
979 )))
980 )))
981
982 (% _mstvisible="1" %)
983 (((
984 (% _mstvisible="2" %)
985 (((
986 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
987 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
988 )))
989 )))
990
991 (% _mstvisible="1" %)
992 (((
993 (% _mstvisible="2" %)
994 (((
995 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
996 c) DR2: total payload includes 11 entries of data
997 )))
998 )))
999
1000 (% _mstvisible="1" %)
1001 (((
1002 (% _mstvisible="2" %)
1003 (((
1004 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
1005 d) DR3: total payload includes 22 entries of data.
1006 )))
1007 )))
1008
1009 (% _mstvisible="1" %)
1010 (((
1011 (% _mstvisible="2" %)
1012 (((
1013 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
1014 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
1015 )))
1016 )))
1017
1018
1019 (% _mstvisible="1" style="text-align: left;" %)
1020 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
1021
1022 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
1023 If LHT65N has below data inside Flash:
1024
1025 (% _mstvisible="1" %)
1026 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
1027
1028 (% _mstvisible="1" %)
1029 (((
1030 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
1031 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
1032 )))
1033
1034 (% _mstvisible="1" %)
1035 (((
1036 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
1037 Where : Start time: 60065F97 = time 21/1/19 04:27:03
1038 )))
1039
1040 (% _mstvisible="1" %)
1041 (((
1042 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
1043 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
1044 )))
1045
1046 (% _mstvisible="1" %)
1047 (((
1048 (% _mstvisible="2" %)
1049
1050 )))
1051
1052 (% _mstvisible="1" %)
1053 (((
1054 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
1055 LHT65N will uplink this payload.
1056 )))
1057
1058 (% _mstvisible="1" %)
1059 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
1060
1061 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
1062 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
1063
1064 Where the first 11 bytes is for the first entry:
1065
1066 7FFF089801464160065F97
1067
1068 Ext sensor data=0x7FFF/100=327.67
1069
1070 Temp=0x0898/100=22.00
1071
1072 Hum=0x0146/10=32.6
1073
1074 poll message flag & Ext=0x41,means reply data,Ext=1
1075
1076 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
1077
1078
1079 (% _mstvisible="1" style="text-align: left;" %)
1080 == (% _msthash="244504" _msttexthash="177736" _mstvisible="3" %)2.7 Alarm Mode(%%) ==
1081
1082 (% _msthash="315279" _msttexthash="16493308" _mstvisible="1" style="text-align: left;" %)
1083 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.
1084
1085 (% _mstvisible="1" %)
1086 (((
1087 (% _mstvisible="2" style="text-align: left;" %)
1088 (% _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.
1089 )))
1090
1091 (% _mstvisible="1" style="text-align: left;" %)
1092 (% _msthash="315280" _msttexthash="363480" _mstvisible="3" %)**AT COMMAND FOR ALARM MODE:**
1093
1094 (% _mstvisible="1" class="box infomessage" %)
1095 (((
1096 (% _msthash="506086" _msttexthash="2193529" _mstvisible="2" style="text-align: left;" %)
1097 (% _istranslated="1" _mstmutation="1" _mstvisible="4" %)**AT+WMOD=1**(%%): Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1098
1099 (% _msthash="506087" _msttexthash="3671265" _mstvisible="2" style="text-align: left;" %)
1100 (% _istranslated="1" _mstvisible="4" %)**AT+CITEMP=1**(%%): The interval between checking the alarm temperature. (In minutes)
1101
1102 (% _msthash="506088" _msttexthash="3310437" _mstvisible="2" style="text-align: left;" %)
1103 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP**(%%): Gets or sets the alarm range of the internal temperature sensor
1104
1105 (% _mstvisible="2" style="text-align: left;" %)
1106 (% _istranslated="1" _mstmutation="1" %)**AT+ARTEMP=？ **(%%): Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1107
1108 (% _msthash="506089" _msttexthash="3590067" _mstvisible="2" style="text-align: left;" %)
1109 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP=45,105**(%%): Set the internal temperature sensor alarm range from 45 to 105.
1110 )))
1111
1112
1113
1114 (% _msthash="72514" _msttexthash="253149" _mstvisible="1" style="text-align: left;" %)
1115 == (% _istranslated="1" _msthash="168103" _msttexthash="59969" _mstvisible="3" %)2.8 (%%)LED Indicator ==
1116
1117 (% _mstvisible="1" %)
1118 (((
1119 (% _msthash="197769" _msttexthash="2924142" style="text-align: left;" %)
1120 The LHT65 has a triple color LED which for easy showing different stage .
1121
1122 (% _msthash="289211" _msttexthash="3402659" style="text-align: left;" %)
1123 While user press ACT button, the LED will work as per LED status with ACT button.
1124 )))
1125
1126 (% _mstvisible="1" %)
1127 (((
1128 (% _msthash="506092" _msttexthash="521573" _mstvisible="2" style="text-align: left;" %)
1129 In a normal working state:
1130 )))
1131
1132 (% _mstvisible="1" %)
1133 * (% _mstvisible="3" %)
1134 (((
1135 (% _msthash="903005" _msttexthash="1647204" _mstvisible="4" %)
1136 For each uplink, the BLUE LED or RED LED will blink (% _msthash="903005" _msttexthash="46254" _mstvisible="3" %)once(%%).(% style="display:none" %)
1137
1138 (% _msthash="197771" _msttexthash="1202526" %)
1139 (% _msthash="903005" _msttexthash="1647204" _mstvisible="3" %)BLUE LED when external sensor is connected
1140 )))
1141 * (% _mstvisible="3" %)
1142 (((
1143 (% _msthash="903007" _msttexthash="1334749" _mstvisible="4" %)
1144 RED LED when external sensor is not connected
1145 )))
1146 * (% _mstvisible="3" %)
1147 (((
1148 (% _msthash="903008" _msttexthash="1875640" _mstvisible="4" %)
1149 For each success downlink, the PURPLE LED will blink once
1150 )))
1151
1152
1153 (% _mstvisible="1" style="text-align: left;" %)
1154 == (% _msthash="112034" _msttexthash="277511" _mstvisible="3" %)2.9 installation(%%) ==
1155
1156 (% _mstvisible="1" %)
1157 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1158
1159
1160 (% _msthash="604150" _msttexthash="563212" _mstvisible="1" style="text-align: left;" %)
1161 = (% _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(%%) =
1162
1163 (% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1164 == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(%%) E3 Temperature Probe ==
1165
1166 (% _mstvisible="1" %)
1167 [[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"]]
1168
1169
1170 (% _msthash="315354" _msttexthash="1270971" _mstvisible="1" style="text-align: left;" %)
1171 Temperature sensor with 2 meters cable long
1172
1173 (% _mstvisible="1" %)
1174 * Resolution: 0.0625 °C
1175 * ±0.5°C accuracy from -10°C to +85°C
1176 * ±2°C accuracy from -55°C to +125°C
1177 * Operating Range: -40 ~~ 125 °C
1178 * -55°C to 125°C
1179 * Working voltage 2.35v ~~ 5v
1180
1181
1182
1183 (% _mstvisible="1" style="text-align: left;" %)
1184 = (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) =
1185
1186 (% _mstvisible="1" %)
1187 (((
1188 (% _msthash="506246" _msttexthash="2005926" _mstvisible="2" style="text-align: left;" %)
1189 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1190 )))
1191
1192 (% _mstvisible="1" %)
1193 * (% _mstvisible="3" %)
1194 (((
1195 (% _msthash="903318" _msttexthash="635544" _mstvisible="4" %)
1196 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1197 )))
1198 * (% _mstvisible="3" %)
1199 (((
1200 (% _msthash="903319" _msttexthash="2004301" _mstvisible="4" %)
1201 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1202 )))
1203
1204 (% _mstvisible="1" %)
1205 (((
1206 (% _mstvisible="2" style="text-align: left;" %)
1207
1208 )))
1209
1210 (% _mstvisible="1" %)
1211 (((
1212 (% _msthash="506248" _msttexthash="2144051" _mstvisible="2" style="text-align: left;" %)
1213 There are two kinds of commands to configure LHT65N, they are:
1214 )))
1215
1216 (% _mstvisible="1" %)
1217 (((
1218 (% _mstvisible="2" style="text-align: left;" %)
1219 (% _msthash="506249" _msttexthash="317850" _mstvisible="3" style="color:#4f81bd" %)* (% _msthash="506249" _msttexthash="317850" _mstvisible="4" style="color:#4f81bd" %)**General Commands**(% _msthash="506249" _msttexthash="317850" _mstvisible="3" style="color:#4f81bd" %).
1220 )))
1221
1222 (% _mstvisible="1" %)
1223 (((
1224 (% _msthash="506250" _msttexthash="774527" _mstvisible="2" style="text-align: left;" %)
1225 These commands are to configure:
1226 )))
1227
1228 (% _mstvisible="1" %)
1229 * (% _mstvisible="3" %)
1230 (((
1231 (% _msthash="903320" _msttexthash="1503580" _mstvisible="4" %)
1232 General system settings like: uplink interval.
1233 )))
1234 * (% _mstvisible="3" %)
1235 (((
1236 (% _msthash="903321" _msttexthash="1244334" _mstvisible="4" %)
1237 LoRaWAN protocol & radio-related commands.
1238 )))
1239
1240 (% _mstvisible="1" %)
1241 (((
1242 (% _msthash="506251" _msttexthash="8343023" _mstvisible="2" style="text-align: left;" %)
1243 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]]
1244 )))
1245
1246 (% _mstvisible="1" %)
1247 (((
1248 (% _mstvisible="2" style="text-align: left;" %)
1249
1250 )))
1251
1252 (% _mstvisible="1" %)
1253 (((
1254 (% _mstvisible="2" style="text-align: left;" %)
1255 (% _mstvisible="3" style="color:#4f81bd" %)* **Commands special design for LHT65N**
1256 )))
1257
1258 (% _mstvisible="1" %)
1259 (((
1260 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1261 These commands are only valid for LHT65N, as below:
1262
1263 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1264
1265 )))
1266
1267 (% _mstvisible="1" style="text-align: left;" %)
1268 == (% _msthash="708253" _msttexthash="668772" _mstvisible="3" %)4.1 Set Transmit Interval Time(%%) ==
1269
1270 (% _msthash="315355" _msttexthash="1659268" _mstvisible="1" style="text-align: left;" %)
1271 Feature: Change LoRaWAN End Node Transmit Interval.
1272
1273 (% _mstvisible="1" style="text-align: left;" %)
1274 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1275
1276 (% _mstvisible="1" %)
1277 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1278
1279 (% _mstvisible="1" %)
1280 (((
1281 (% _mstvisible="2" style="text-align: left;" %)
1282
1283
1284 (% _mstvisible="2" style="text-align: left;" %)
1285 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
1286 )))
1287
1288 (% _mstvisible="1" %)
1289 (((
1290 (% _msthash="506256" _msttexthash="1996592" _mstvisible="2" style="text-align: left;" %)
1291 Format: Command Code (0x01) followed by 3 bytes time value.
1292 )))
1293
1294 (% _mstvisible="1" %)
1295 (((
1296 (% _msthash="506257" _msttexthash="12934649" _mstvisible="2" style="text-align: left;" %)
1297 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1298 )))
1299
1300 (% _mstvisible="1" %)
1301 * (% _mstvisible="3" %)
1302 (((
1303 (% _msthash="903322" _msttexthash="3250546" _mstvisible="4" %)
1304 (% _mstvisible="5" %)**Example 1**(%%): Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1305 )))
1306 * (% _mstvisible="3" %)
1307 (((
1308 (% _msthash="903323" _msttexthash="3253315" _mstvisible="4" %)
1309 (% _mstvisible="5" %)**Example 2**(%%): Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1310
1311
1312 (% _msthash="903323" _msttexthash="3253315" _mstvisible="4" %)
1313
1314 )))
1315
1316 (% _mstvisible="1" style="text-align: left;" %)
1317 == (% _msthash="614770" _msttexthash="578240" _mstvisible="3" %)4.2 Set External Sensor Mode(%%) ==
1318
1319 (% _msthash="315357" _msttexthash="975117" _mstvisible="1" style="text-align: left;" %)
1320 Feature: Change External Sensor Mode.
1321
1322 (% _mstvisible="1" style="text-align: left;" %)
1323 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1324
1325 (% _mstvisible="1" %)
1326 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1327
1328 (% _mstvisible="1" %)
1329 (((
1330 (% _mstvisible="2" style="text-align: left;" %)
1331
1332
1333 (% _mstvisible="2" style="text-align: left;" %)
1334 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1335 )))
1336
1337 (% _mstvisible="1" %)
1338 (((
1339 (% _msthash="506259" _msttexthash="395629" _mstvisible="2" style="text-align: left;" %)
1340 Total bytes: 2 ~~ 5 bytes
1341 )))
1342
1343 (% _mstvisible="1" %)
1344 (((
1345 (% _mstvisible="2" %)
1346 (% _msthash="506260" _msttexthash="104767" _mstvisible="4" %)**Example:**
1347 )))
1348
1349 (% _mstvisible="1" %)
1350 * (% _mstvisible="3" %)
1351 (((
1352 (% _msthash="903324" _msttexthash="934973" _mstvisible="4" %)
1353 0xA201: Set external sensor type to E1
1354 )))
1355 * (% _mstvisible="3" %)
1356 (((
1357 (% _msthash="903325" _msttexthash="354770" _mstvisible="4" %)
1358 0xA209: Same as AT+EXT=9
1359 )))
1360 * (% _mstvisible="3" %)
1361 (((
1362 (% _msthash="903326" _msttexthash="639067" _mstvisible="4" %)
1363 0xA20702003c,Same as AT+SETCNT=60
1364
1365
1366 (% _msthash="903326" _msttexthash="639067" _mstvisible="4" %)
1367
1368 )))
1369
1370 (% _mstvisible="1" style="text-align: left;" %)
1371 == (% _msthash="1562483" _msttexthash="1445717" _mstvisible="3" %)4.3 Enable/Disable uplink Temperature probe ID(%%) ==
1372
1373 (% _msthash="315359" _msttexthash="2977572" _mstvisible="1" style="text-align: left;" %)
1374 Feature: If PID is enabled, device will send the temperature probe ID on:
1375
1376 (% _mstvisible="1" %)
1377 * First Packet after OTAA Join
1378 * Every 24 hours since the first packet.
1379
1380 (% _msthash="315360" _msttexthash="658814" _mstvisible="1" style="text-align: left;" %)
1381 PID is default set to disable (0)
1382
1383 (% _mstvisible="1" style="text-align: left;" %)
1384 (% style="color:#4f81bd" %)**AT Command:**
1385
1386 (% _mstvisible="1" %)
1387 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1388
1389
1390 (% _mstvisible="1" style="text-align: left;" %)
1391 (% style="color:#4f81bd" %)**Downlink Command:**
1392
1393 (% _mstvisible="1" %)
1394 * 0xA800  **~-~->** AT+PID=0
1395 * 0xA801     **~-~->** AT+PID=1
1396
1397
1398
1399 (% _mstvisible="1" style="text-align: left;" %)
1400 == (% _msthash="266344" _msttexthash="242879" _mstvisible="3" %)4.4 Set Password(%%) ==
1401
1402 (% _msthash="315363" _msttexthash="1170728" _mstvisible="1" style="text-align: left;" %)
1403 Feature: Set device password, max 9 digits
1404
1405 (% _mstvisible="1" style="text-align: left;" %)
1406 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1407
1408 (% _mstvisible="1" %)
1409 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1410
1411 (% _mstvisible="1" %)
1412 (((
1413 (% _mstvisible="2" style="text-align: left;" %)
1414
1415
1416 (% _mstvisible="2" style="text-align: left;" %)
1417 (% style="color:#4f81bd" %)**Downlink Command:**
1418 )))
1419
1420 (% _mstvisible="1" %)
1421 (((
1422 (% _msthash="506262" _msttexthash="974311" _mstvisible="2" style="text-align: left;" %)
1423 No downlink command for this feature.
1424
1425 (% _msthash="506262" _msttexthash="974311" _mstvisible="2" style="text-align: left;" %)
1426
1427 )))
1428
1429 (% _mstvisible="1" style="text-align: left;" %)
1430 == (% _msthash="306956" _msttexthash="281918" _mstvisible="3" %)4.5 Quit AT Command(%%) ==
1431
1432 (% _msthash="315365" _msttexthash="4616456" _mstvisible="1" style="text-align: left;" %)
1433 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1434
1435 (% _mstvisible="1" style="text-align: left;" %)
1436 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1437
1438 (% _mstvisible="1" %)
1439 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1440
1441
1442 (% _mstvisible="1" style="text-align: left;" %)
1443 (% style="color:#4f81bd" %)**Downlink Command:**
1444
1445 (% _msthash="315368" _msttexthash="974311" _mstvisible="1" style="text-align: left;" %)
1446 No downlink command for this feature.
1447
1448
1449 (% _mstvisible="1" style="text-align: left;" %)
1450 == (% _msthash="362752" _msttexthash="334919" _mstvisible="3" %)4.6 Set to sleep mode(%%) ==
1451
1452 (% _msthash="315369" _msttexthash="779688" _mstvisible="1" style="text-align: left;" %)
1453 Feature: Set device to sleep mode
1454
1455 (% _mstvisible="1" style="text-align: left;" %)
1456 (% style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1457
1458 (% _mstvisible="1" %)
1459 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1460
1461
1462 (% _mstvisible="1" %)
1463 (% style="color:#4f81bd" %)**Downlink Command:**
1464
1465 (% _mstvisible="1" %)
1466 * There is no downlink command to set to Sleep mode.
1467
1468
1469
1470 (% _mstvisible="1" %)
1471 == (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) ==
1472
1473 (% _msthash="315372" _msttexthash="2565524" _mstvisible="1" %)
1474 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1475
1476 (% _mstvisible="1" %)
1477 (% style="color:#4f81bd" %)**AT Command:**
1478
1479 (% _mstvisible="1" %)
1480 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1481
1482
1483 (% _mstvisible="1" %)
1484 (% style="color:#4f81bd" %)**Downlink Command:**
1485
1486 (% _msthash="315375" _msttexthash="2898571" _mstvisible="1" %)
1487 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1488
1489
1490 (% _mstvisible="1" %)
1491 == (% _msthash="376779" _msttexthash="348712" _mstvisible="3" %)4.8 Set Time Sync Mode(%%) ==
1492
1493 (% _mstvisible="1" %)
1494 (((
1495 (% _msthash="506263" _msttexthash="11748321" _mstvisible="2" %)
1496 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1497 )))
1498
1499 (% _mstvisible="1" %)
1500 (((
1501 (% _msthash="506264" _msttexthash="6530264" _mstvisible="2" %)
1502 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.
1503 )))
1504
1505 (% _mstvisible="1" %)
1506 (((
1507 (% _mstvisible="2" %)
1508 (% style="color:#4f81bd" %)**AT Command:**
1509 )))
1510
1511 (% _mstvisible="1" %)
1512 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1513
1514
1515 (% _mstvisible="1" %)
1516 (% style="color:#4f81bd" %)**Downlink Command:**
1517
1518 (% _msthash="315377" _msttexthash="479648" _mstvisible="1" %)
1519 0x28 01 ~/~/ Same As AT+SYNCMOD=1
1520
1521 (% _msthash="315378" _msttexthash="479076" _mstvisible="1" %)
1522 0x28 00 ~/~/ Same As AT+SYNCMOD=0
1523
1524
1525 (% _mstvisible="1" %)
1526 == (% _msthash="536432" _msttexthash="502528" _mstvisible="3" %)4.9 Set Time Sync Interval(%%) ==
1527
1528 (% _msthash="315379" _msttexthash="3065777" _mstvisible="1" %)
1529 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1530
1531 (% _mstvisible="1" %)
1532 (% style="color:#4f81bd" %)**AT Command:**
1533
1534 (% _mstvisible="1" %)
1535 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1536
1537
1538 (% _mstvisible="1" %)
1539 (% style="color:#4f81bd" %)**Downlink Command:**
1540
1541 (% _msthash="315382" _msttexthash="590044" _mstvisible="1" %)
1542 0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
1543
1544
1545 (% _mstvisible="1" %)
1546 == (% _msthash="927901" _msttexthash="882570" _mstvisible="3" %)4.10 Print data entries base on page.(%%) ==
1547
1548 (% _msthash="315383" _msttexthash="3233334" _mstvisible="1" %)
1549 Feature: Print the sector data from start page to stop page (max is 416 pages).
1550
1551 (% _mstvisible="1" %)
1552 (% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1553
1554 (% _mstvisible="1" %)
1555 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1556
1557
1558 (% _mstvisible="1" %)
1559 (% style="color:#4f81bd" %)**Downlink Command:**
1560
1561 (% _msthash="315386" _msttexthash="799539" _mstvisible="1" %)
1562 No downlink commands for feature
1563
1564
1565 (% _mstvisible="1" %)
1566 == (% _msthash="788762" _msttexthash="747149" _mstvisible="3" %)4.11 Print last few data entries.(%%) ==
1567
1568 (% _msthash="315387" _msttexthash="1101009" _mstvisible="1" %)
1569 Feature: Print the last few data entries
1570
1571 (% _mstvisible="1" %)
1572 (% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1573
1574 (% _mstvisible="1" %)
1575 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1576
1577
1578 (% _mstvisible="1" %)
1579 (% style="color:#4f81bd" %)**Downlink Command:**
1580
1581 (% _msthash="315390" _msttexthash="799539" _mstvisible="1" %)
1582 No downlink commands for feature
1583
1584
1585 (% _mstvisible="1" %)
1586 == (% _msthash="437814" _msttexthash="408057" _mstvisible="3" %)4.12 Clear Flash Record(%%) ==
1587
1588 (% _msthash="315391" _msttexthash="1609075" _mstvisible="1" %)
1589 Feature: Clear flash storage for data log feature.
1590
1591 (% _mstvisible="1" %)
1592 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1593
1594 (% _mstvisible="1" %)
1595 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1596
1597
1598 (% _mstvisible="1" %)
1599 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1600
1601 (% _mstvisible="1" %)
1602 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1603
1604
1605
1606 (% _mstvisible="1" %)
1607 == (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) ==
1608
1609 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1610 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.
1611
1612
1613 (% _mstvisible="1" %)
1614 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1615
1616 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1617 The default factory setting is 0
1618
1619 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1620 (% _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**
1621 (% _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
1622
1623 (% _mstvisible="1" %)
1624 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1625
1626 (% _mstvisible="1" %)
1627 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1628
1629
1630
1631 (% _mstvisible="1" %)
1632 = (% _msthash="568737" _msttexthash="502827" _mstvisible="3" %)5. Battery & How to replace(%%) =
1633
1634 (% _mstvisible="1" %)
1635 == (% _msthash="265486" _msttexthash="242073" _mstvisible="3" %)5.1 Battery Type(%%) ==
1636
1637 (% _msthash="315398" _msttexthash="33754799" _mstvisible="1" %)
1638 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.
1639
1640 (% _mstvisible="1" %)
1641 (((
1642 (% _mstvisible="2" %)
1643 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1644 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1645 )))
1646
1647 (% _mstvisible="1" %)
1648 (((
1649 (% _mstvisible="2" %)
1650 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1651
1652 )))
1653
1654 (% _mstvisible="1" %)
1655 == (% _msthash="353795" _msttexthash="326703" _mstvisible="3" %)5.2 Replace Battery(%%) ==
1656
1657 (% _msthash="315399" _msttexthash="11289278" _mstvisible="1" %)
1658 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.
1659
1660 (% _mstvisible="1" %)
1661 [[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"]]
1662
1663 (% _mstvisible="1" %)
1664 == (% _msthash="494650" _msttexthash="462241" _mstvisible="3" %)5.3 Battery Life Analyze(%%) ==
1665
1666 (% _mstvisible="1" %)
1667 (((
1668 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1669 (((
1670 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:
1671 [[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]]
1672 )))
1673
1674 (((
1675
1676 )))
1677
1678 (((
1679 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]]
1680 )))
1681
1682
1683 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1684 = (% _msthash="183170" _msttexthash="163566" _mstvisible="3" %)6. FAQ(%%) =
1685
1686 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1687 == 6.1 How to use AT Command? ==
1688
1689 (((
1690 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.
1691 )))
1692
1693 [[image:image-20220530085651-1.png]]
1694
1695
1696 **Connection:**
1697
1698 ✓** USB to TTL GND <~-~->GND**
1699
1700 **✓ USB to TTL RXD <~-~-> D+**
1701
1702 **✓ USB to TTL TXD <~-~-> A11**
1703
1704 **✓ USB to TTL 3.3V <~-~-> D-**
1705
1706
1707 (((
1708 In PC, User needs to set serial tool(such as **putty**, SecureCRT) baud rate to **9600** to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:**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.
1709 )))
1710
1711 (((
1712 Input password and ATZ to activate LHT65N,As shown below:
1713 )))
1714
1715 [[image:image-20220530095701-4.png]]
1716
1717
1718 AT Command List is as below:
1719
1720 AT+<CMD>? : Help on <CMD>
1721
1722 AT+<CMD> : Run <CMD>
1723
1724 AT+<CMD>=<value> : Set the value
1725
1726 AT+<CMD>=? : Get the value
1727
1728 AT+DEBUG:Set more info output
1729
1730 ATZ: Trig a reset of the MCU
1731
1732 AT+FDR: Reset Parameters to Factory Default, Keys Reserve
1733
1734 AT+DEUI: Get or Set the Device EUI
1735
1736 AT+DADDR: Get or Set the Device Address
1737
1738 AT+APPKEY: Get or Set the Application Key
1739
1740 AT+NWKSKEY: Get or Set the Network Session Key
1741
1742 AT+APPSKEY: Get or Set the Application Session Key
1743
1744 AT+APPEUI: Get or Set the Application EUI
1745
1746 AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1747
1748 AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1749
1750 AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)
1751
1752 AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1753
1754 AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1755
1756 AT+RX2FQ: Get or Set the Rx2 window frequency
1757
1758 AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1759
1760 AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1761
1762 AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1763
1764 AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1765
1766 AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1767
1768 AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1769
1770 AT+NWKID: Get or Set the Network ID
1771
1772 AT+FCU: Get or Set the Frame Counter Uplink
1773
1774 AT+FCD: Get or Set the Frame Counter Downlink
1775
1776 AT+CLASS: Get or Set the Device Class
1777
1778 AT+JOIN: Join network
1779
1780 AT+NJS: Get the join status
1781
1782 AT+SENDB: Send hexadecimal data along with the application port
1783
1784 AT+SEND: Send text data along with the application port
1785
1786 AT+RECVB: Print last received data in binary format (with hexadecimal values)
1787
1788 AT+RECV: Print last received data in raw format
1789
1790 AT+VER: Get current image version and Frequency Band
1791
1792 AT+CFM: Get or Set the confirmation mode (0-1)
1793
1794 AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1795
1796 AT+SNR: Get the SNR of the last received packet
1797
1798 AT+RSSI: Get the RSSI of the last received packet
1799
1800 AT+TDC: Get or set the application data transmission interval in ms
1801
1802 AT+PORT: Get or set the application port
1803
1804 AT+DISAT: Disable AT commands
1805
1806 AT+PWORD: Set password, max 9 digits
1807
1808 AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1809
1810 AT+CHE: Get or Set eight channels mode,Only for US915,AU915,CN470
1811
1812 AT+PDTA: Print the sector data from start page to stop page
1813
1814 AT+PLDTA: Print the last few sets of data
1815
1816 AT+CLRDTA: Clear the storage, record position back to 1st
1817
1818 AT+SLEEP: Set sleep mode
1819
1820 AT+EXT: Get or Set external sensor model
1821
1822 AT+BAT: Get the current battery voltage in mV
1823
1824 AT+CFG: Print all configurations
1825
1826 AT+WMOD: Get or Set Work Mode
1827
1828 AT+ARTEMP: Get or set the internal Temperature sensor alarm range
1829
1830 AT+CITEMP: Get or set the internal Temperature sensor collection interval in min
1831
1832 AT+SETCNT:Set the count at present
1833
1834 AT+RJTDC: Get or set the ReJoin data transmission interval in min
1835
1836 AT+RPL: Get or set response level
1837
1838 AT+TIMESTAMP: Get or Set UNIX timestamp in second
1839
1840 AT+LEAPSEC: Get or Set Leap Second
1841
1842 AT+SYNCMOD: Get or Set time synchronization method
1843
1844 AT+SYNCTDC: Get or set time synchronization interval in day
1845
1846 AT+PID: Get or set the PID
1847
1848
1849 )))
1850
1851 (% _mstvisible="1" %)
1852 = (% _msthash="183170" _msttexthash="163566" _mstvisible="3" %)7. Order Info(%%) =
1853
1854 (% _mstvisible="1" %)
1855 (((
1856 (% _msthash="506267" _msttexthash="432432" _mstvisible="2" %)
1857 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
1858 )))
1859
1860 (% _mstvisible="1" %)
1861 (((
1862 (% _msthash="506268" _msttexthash="686946" _mstvisible="2" %)
1863 (% _mstvisible="4" style="color:#4f81bd" %)**XX **(%%): The default frequency band
1864 )))
1865
1866 (% _mstvisible="1" %)
1867 * (% _mstvisible="3" %)
1868 (((
1869 (% _msthash="903327" _msttexthash="393341" _mstvisible="4" %)
1870 (% _mstvisible="6" style="color:#4f81bd" %)** AS923**(%%): LoRaWAN AS923 band
1871 )))
1872 * (% _mstvisible="3" %)
1873 (((
1874 (% _msthash="903328" _msttexthash="394576" _mstvisible="4" %)
1875 (% _mstvisible="6" style="color:#4f81bd" %)** AU915**(%%): LoRaWAN AU915 band
1876 )))
1877 * (% _mstvisible="3" %)
1878 (((
1879 (% _msthash="903329" _msttexthash="393913" _mstvisible="4" %)
1880 (% _mstvisible="6" style="color:#4f81bd" %)** EU433**(%%): LoRaWAN EU433 band
1881 )))
1882 * (% _mstvisible="3" %)
1883 (((
1884 (% _msthash="903330" _msttexthash="399087" _mstvisible="4" %)
1885 (% _mstvisible="6" style="color:#4f81bd" %)** EU868**(%%): LoRaWAN EU868 band
1886 )))
1887 * (% _mstvisible="3" %)
1888 (((
1889 (% _msthash="903331" _msttexthash="395109" _mstvisible="4" %)
1890 (% _mstvisible="6" style="color:#4f81bd" %)** KR920**(%%): LoRaWAN KR920 band
1891 )))
1892 * (% _mstvisible="3" %)
1893 (((
1894 (% _msthash="903332" _msttexthash="400842" _mstvisible="4" %)
1895 (% _mstvisible="6" style="color:#4f81bd" %)** US915**(%%): LoRaWAN US915 band
1896 )))
1897 * (% _mstvisible="3" %)
1898 (((
1899 (% _msthash="903333" _msttexthash="396487" _mstvisible="4" %)
1900 (% _mstvisible="6" style="color:#4f81bd" %)** IN865**(%%): LoRaWAN IN865 band
1901 )))
1902 * (% _mstvisible="3" %)
1903 (((
1904 (% _msthash="903334" _msttexthash="390923" _mstvisible="4" %)
1905 (% _mstvisible="6" style="color:#4f81bd" %)** CN470**(%%): LoRaWAN CN470 band
1906 )))
1907
1908 (% _mstvisible="1" %)
1909 (((
1910 (% _msthash="506269" _msttexthash="443495" _mstvisible="2" %)
1911 (% _mstvisible="4" style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1912 )))
1913
1914 (% _mstvisible="1" %)
1915 * (% _mstvisible="3" %)
1916 (((
1917 (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
1918 (% _mstvisible="6" style="color:#4f81bd" %)**E3**(%%): External Temperature Probe
1919
1920
1921 (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
1922
1923 )))
1924
1925 (% _mstvisible="1" %)
1926 = (% _msthash="233363" _msttexthash="211237" _mstvisible="3" %)8. Packing Info(%%) =
1927
1928 (% _mstvisible="1" %)
1929 (((
1930 (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1931
1932
1933 (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1934 (% _mstvisible="3" %)**Package Includes**(%%):
1935 )))
1936
1937 (% _mstvisible="1" %)
1938 * (% _mstvisible="3" %)
1939 (((
1940 (% _msthash="903336" _msttexthash="1033149" _mstvisible="4" %)
1941 LHT65N Temperature & Humidity Sensor x 1
1942 )))
1943 * (% _mstvisible="3" %)
1944 (((
1945 (% _msthash="903337" _msttexthash="242567" _mstvisible="4" %)
1946 Program cable x 1
1947 )))
1948 * (% _mstvisible="3" %)
1949 (((
1950 (% _msthash="903338" _msttexthash="544167" _mstvisible="4" %)
1951 Optional external sensor
1952 )))
1953
1954 (% _mstvisible="1" %)
1955 (((
1956 (% _msthash="506271" _msttexthash="403858" _mstvisible="2" %)
1957 (% _mstvisible="3" %)**Dimension and weight**(%%):
1958 )))
1959
1960 (% _mstvisible="1" %)
1961 * (% _mstvisible="3" %)
1962 (((
1963 (% _msthash="903339" _msttexthash="391807" _mstvisible="4" %)
1964 Device Size:  13.5 x 7 x 3 cm
1965 )))
1966 * (% _mstvisible="3" %)
1967 (((
1968 (% _msthash="903340" _msttexthash="285298" _mstvisible="4" %)
1969 Device Weight: 105g
1970 )))
1971 * (% _mstvisible="3" %)
1972 (((
1973 (% _msthash="903341" _msttexthash="562926" _mstvisible="4" %)
1974 Package Size / pcs : 14.5 x 8 x 5 cm
1975 )))
1976 * (% _mstvisible="3" %)
1977 (((
1978 (% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
1979 Weight / pcs : 170g
1980
1981
1982 (% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
1983
1984 )))
1985
1986 = 9. Reference =
1987
1988 * [[Datasheet, Photos, Decoder, Firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor]]
1989
1990
1991 = 10. FCC Warning =
1992
1993 (% _mstvisible="1" %)
1994 (((
1995 (% _msthash="506272" _msttexthash="6034353" _mstvisible="2" %)
1996 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1997 )))
1998
1999 (% _mstvisible="1" %)
2000 (((
2001 (% _msthash="506273" _msttexthash="44097638" _mstvisible="2" %)
2002 (1) This device may not cause harmful interference；
2003 )))
2004
2005 (% _mstvisible="1" %)
2006 (((
2007 (% _msthash="506274" _msttexthash="7559773" _mstvisible="2" %)
2008 (2) this device must accept any interference received, including interference that may cause undesired operation.
2009 )))