Version 123.1 by Xiaoling on 2022/06/13 16:20
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10 (% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
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12 {{toc/}}
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18 = (% _msthash="277498" _msttexthash="253045" _mstvisible="3" %)1. Introduction(%%) =
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21 == (% _msthash="1532895" _msttexthash="1426958" _mstvisible="3" %)1.1 What is LHT65N Temperature & Humidity Sensor(%%) ==
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24 (((
25 (% _msthash="506051" _msttexthash="24333127" _mstvisible="2" %)
26 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" %)**.**
27 )))
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30 (((
31 (% _msthash="506052" _msttexthash="66005810" _mstvisible="2" %)
32 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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37 (% _msthash="506053" _msttexthash="4298047" _mstvisible="2" %)
38 LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
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44 LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
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49 (% _msthash="506055" _msttexthash="17023136" _mstvisible="2" %)
50 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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55 (% _msthash="506056" _msttexthash="5557097" _mstvisible="2" %)
56 *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
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60 )))
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62 (% _mstvisible="1" %)
63 == (% _msthash="182559" _msttexthash="163319" _mstvisible="3" %)1.2 Features(%%) ==
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66 * Wall mountable
67 * LoRaWAN v1.0.3 Class A protocol
68 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
69 * AT Commands to change parameters
70 * Remote configure parameters via LoRaWAN Downlink
71 * Firmware upgradeable via program port
72 * Built-in 2400mAh battery for up to 10 years of use.
73 * Built-in Temperature & Humidity sensor
74 * Optional External Sensors
75 * Tri-color LED to indicate working status
76 * Datalog feature
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80 == (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3 Specification(%%) ==
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88 (% _msthash="506057" _msttexthash="671437" _mstvisible="4" %)**Built-in Temperature Sensor:**
89 )))
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92 * (% _mstvisible="3" %)
93 (((
94 (% _msthash="902993" _msttexthash="294424" _mstvisible="4" %)
95 Resolution: 0.01 °C
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97 * (% _mstvisible="3" %)
98 (((
99 (% _msthash="902994" _msttexthash="690664" _mstvisible="4" %)
100 Accuracy Tolerance : Typ ±0.3 °C
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102 * (% _mstvisible="3" %)
103 (((
104 (% _msthash="902995" _msttexthash="504647" _mstvisible="4" %)
105 Long Term Drift: < 0.02 °C/yr
106 )))
107 * (% _mstvisible="3" %)
108 (((
109 (% _msthash="902996" _msttexthash="478257" _mstvisible="4" %)
110 Operating Range: -40 ~~ 85 °C
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114 (((
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119 (% _msthash="506058" _msttexthash="544453" _mstvisible="4" %)**Built-in Humidity Sensor:**
120 )))
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122 (% _mstvisible="1" %)
123 * (% _mstvisible="3" %)
124 (((
125 (% _msthash="902997" _msttexthash="282438" _mstvisible="4" %)
126 Resolution: 0.04 %RH
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128 * (% _mstvisible="3" %)
129 (((
130 (% _msthash="902998" _msttexthash="628771" _mstvisible="4" %)
131 Accuracy Tolerance : Typ ±3 %RH
132 )))
133 * (% _mstvisible="3" %)
134 (((
135 (% _msthash="902999" _msttexthash="504647" _mstvisible="4" %)
136 Long Term Drift: < 0.02 °C/yr
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138 * (% _mstvisible="3" %)
139 (((
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141 Operating Range: 0 ~~ 96 %RH
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150 (% _msthash="506059" _msttexthash="680537" _mstvisible="4" %)**External Temperature Sensor:**
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154 * (% _mstvisible="3" %)
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156 (% _msthash="903001" _msttexthash="332254" _mstvisible="4" %)
157 Resolution: 0.0625 °C
158 )))
159 * (% _mstvisible="3" %)
160 (((
161 (% _msthash="903002" _msttexthash="782600" _mstvisible="4" %)
162 ±0.5°C accuracy from -10°C to +85°C
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164 * (% _mstvisible="3" %)
165 (((
166 (% _msthash="903003" _msttexthash="729482" _mstvisible="4" %)
167 ±2°C accuracy from -55°C to +125°C
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169 * (% _mstvisible="3" %)
170 (((
171 (% _msthash="903004" _msttexthash="592540" _mstvisible="4" %)
172 Operating Range: -55 °C ~~ 125 °C
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180 = (% _msthash="655759" _msttexthash="618618" _mstvisible="3" %)2. Connect LHT65N to IoT Server(%%) =
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183 == (% _msthash="462371" _msttexthash="410332" _mstvisible="3" %)2.1 How does LHT65N work?(%%) ==
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188 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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194 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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201 == (% _msthash="514384" _msttexthash="458666" _mstvisible="3" %)2.2 How to Activate LHT65N?(%%) ==
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204 The LHT65N has two working modes:
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207 * **Deep Sleep Mode**: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
208 * **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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212 (% _msthash="506062" _msttexthash="6036823" _mstvisible="2" %)
213 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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217 [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
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220 [[image:image-20220525110604-2.png||_mstalt="427531" _mstvisible="3"]]
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224 == (% _msthash="882726" _msttexthash="838526" _mstvisible="3" %)2.3 Example to join LoRaWAN network(%%) ==
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226 (% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
227 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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230 [[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
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232 (% _msthash="315241" _msttexthash="10802155" _mstvisible="1" %)
233 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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237 === (% _msthash="670592" _msttexthash="634075" _mstvisible="3" %)2.3.1 Step 1: Create Device n TTN(%%) ===
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240 Create a device in TTN V3 with the OTAA keys from LHT65N.
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242 (% _msthash="315243" _msttexthash="3694444" _mstvisible="1" %)
243 Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
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246 [[image:image-20220522232812-2.png||_mstalt="428467" _mstvisible="3" height="219" width="279"]]
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248 (% _msthash="315244" _msttexthash="3659149" _mstvisible="1" %)
249 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
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252 Add APP EUI in the application.
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255 [[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
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258 [[image:image-20220522232932-4.png||_mstalt="430157" _mstvisible="3"]]
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261 [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
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263 (% _msthash="315246" _msttexthash="878800" _mstvisible="1" %)
264 Note: LHT65N use same payload as LHT65.
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267 [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
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271 Input APP EUI,  APP KEY and DEV EUI:
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274 [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
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278 (% _mstvisible="1" %)
279 === (% _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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281 (% _msthash="315248" _msttexthash="14452321" _mstvisible="1" %)
282 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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285 [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
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289 (% _mstvisible="1" %)
290 == (% _msthash="320879" _msttexthash="294970" _mstvisible="3" %)2.4 Uplink Payload(%%) ==
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292 (% _msthash="315249" _msttexthash="7722962" _mstvisible="1" %)
293 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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295 (% _msthash="315250" _msttexthash="1322711" _mstvisible="1" %)
296 After each uplink, the (% _mstvisible="3" style="color:blue" %)**BLUE LED**(%%) will blink once.
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298 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:426px" %)
299 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
300 (((
301 (% _mstvisible="6" %)
302 (% _msthash="1817478" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
303 )))|=(% _mstvisible="4" style="width: 39px;" %)(% _mstvisible="5" %)
304 (((
305 (% _mstvisible="6" %)
306 (% _msthash="1817479" _msttexthash="4550" _mstvisible="8" %)**2**
307 )))|=(% _mstvisible="4" style="width: 100px;" %)(% _mstvisible="5" %)
308 (((
309 (% _mstvisible="6" %)
310 (% _msthash="1817480" _msttexthash="4550" _mstvisible="8" %)**2**
311 )))|=(% _mstvisible="4" style="width: 77px;" %)(% _mstvisible="5" %)
312 (((
313 (% _mstvisible="6" %)
314 (% _msthash="1817481" _msttexthash="4550" _mstvisible="8" %)**2**
315 )))|=(% _mstvisible="4" style="width: 47px;" %)(% _mstvisible="5" %)
316 (((
317 (% _mstvisible="6" %)
318 (% _msthash="1817482" _msttexthash="4459" _mstvisible="8" %)**1**
319 )))|=(% _mstvisible="4" style="width: 51px;" %)(% _mstvisible="5" %)
320 (((
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322 (% _msthash="1817483" _msttexthash="4732" _mstvisible="8" %)**4**
323 )))
324 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
325 (((
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327 (% _msthash="1817484" _msttexthash="60203" _mstvisible="8" %)**Value**
328 )))|(% _mstvisible="4" style="width:39px" %)(% _mstvisible="5" %)
329 (((
330 (% _mstvisible="6" %)
331 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo" _msthash="1817485" _msttexthash="22594" _mstvisible="7"]]
332 )))|(% _mstvisible="4" style="width:100px" %)(% _mstvisible="5" %)
333 (((
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335 (((
336 (% _mstvisible="7" %)
337 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
338 )))
339 )))|(% _mstvisible="4" style="width:77px" %)(% _mstvisible="5" %)
340 (((
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342 (((
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344 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2224743" _msttexthash="105872" _mstvisible="8"]]
345 )))
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347 (% _mstvisible="6" %)
348 (((
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350 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429" _mstvisible="8"]]
351 )))
352 )))|(% _mstvisible="4" style="width:47px" %)(% _mstvisible="5" %)
353 (((
354 (% _mstvisible="6" %)
355 [[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331" _mstvisible="7"]] #
356 )))|(% _mstvisible="4" style="width:51px" %)(% _mstvisible="5" %)
357 (((
358 (% _mstvisible="6" %)
359 [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
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363 * The First 6 bytes: has fix meanings for every LHT65N.
364 * The 7th byte (EXT #): defines the external sensor model.
365 * 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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368 (% _mstvisible="1" %)
369 === (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) ===
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371 (% _msthash="315251" _msttexthash="9786491" _mstvisible="1" %)
372 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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374 (% _msthash="315252" _msttexthash="3928483" _mstvisible="1" %)
375 Below is the position to put the decoder and LHT65N decoder can be download from here:
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377 (% _mstvisible="1" %)
378 [[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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380 (% _mstvisible="1" %)
381 [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
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385 (% _mstvisible="1" %)
386 === (% _msthash="411411" _msttexthash="383656" _mstvisible="3" %)2.4.2 BAT-Battery Info(%%) ===
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388 (% _msthash="315254" _msttexthash="3122912" _mstvisible="1" %)
389 These two bytes of BAT include the battery state and the actually voltage
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391 (% _mstvisible="1" %)
392 [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
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394 (% _mstvisible="1" %)
395 [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
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397 (% _msthash="315255" _msttexthash="871611" _mstvisible="1" %)
398 Check the battery voltage for LHT65N.
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400 (% _mstvisible="1" %)
401 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
402 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
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404
405 (% _mstvisible="1" %)
406 === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
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408 (% _mstvisible="1" %)
409 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
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411 (% _mstvisible="1" %)
412 * Temperature:  0x0ABB/100=27.47℃
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414 (% _mstvisible="1" %)
415 [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
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417 (% _mstvisible="1" %)
418 * Temperature:  (0xF5C6-65536)/100=-26.18℃
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421 (% _mstvisible="1" %)
422 === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
423
424 (% _mstvisible="1" %)
425 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
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427 (% _mstvisible="1" %)
428 * Humidity:    0x025C/10=60.4%
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430
431 (% _mstvisible="1" %)
432 === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
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434 (% _msthash="315256" _msttexthash="552240" _mstvisible="1" %)
435 Bytes for External Sensor:
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437 (% _mstvisible="1" %)
438 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
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441 (% _mstvisible="1" %)
442 === (% _msthash="221429" _msttexthash="200655" _mstvisible="3" %)2.4.6 Ext value(%%) ===
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444 (% _mstvisible="1" %)
445 ==== (% _msthash="1005901" _msttexthash="877578" _mstvisible="3" %)2.4.6.1 Ext~=1, E3 Temperature Sensor(%%) ====
446
447 (% _mstvisible="1" %)
448 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
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451 (% _mstvisible="1" %)
452 * DS18B20 temp=0x0ADD/100=27.81℃
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454 (% _msthash="315257" _msttexthash="1038479" _mstvisible="1" %)
455 The last 2 bytes of data are meaningless
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457 (% _mstvisible="1" %)
458 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
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461 (% _mstvisible="1" %)
462 * External temperature= (0xF54F-65536)/100=-27.37℃
463
464 (% _mstvisible="1" %)
465 (((
466 (% _msthash="506063" _msttexthash="1038479" _mstvisible="2" %)
467 The last 2 bytes of data are meaningless
468 )))
469
470 (% _mstvisible="1" %)
471 (((
472 (% _msthash="506064" _msttexthash="21185632" _mstvisible="2" %)
473 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
474 )))
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476
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478 (% _mstvisible="1" %)
479 ==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
480
481 (% _msthash="315258" _msttexthash="41539368" _mstvisible="1" %)
482 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:
483
484 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
485 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 96px;" %)(% _mstvisible="5" %)
486 (((
487 (% _mstvisible="6" %)
488 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
489 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
490 (((
491 (% _mstvisible="6" %)
492 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
493 )))|=(% _mstvisible="4" style="width: 99px;" %)(% _mstvisible="5" %)
494 (((
495 (% _mstvisible="6" %)
496 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
497 )))|=(% _mstvisible="4" style="width: 132px;" %)(% _mstvisible="5" %)
498 (((
499 (% _mstvisible="6" %)
500 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
501 )))|=(% _mstvisible="4" style="width: 54px;" %)(% _mstvisible="5" %)
502 (((
503 (% _mstvisible="6" %)
504 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
505 )))|=(% _mstvisible="4" style="width: 64px;" %)(% _mstvisible="5" %)
506 (((
507 (% _mstvisible="6" %)
508 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
509 )))
510 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
511 (((
512 (% _mstvisible="6" %)
513 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
514 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
515 (((
516 (% _mstvisible="6" %)
517 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
518 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
519 (((
520 (% _mstvisible="6" %)
521 (((
522 (% _mstvisible="7" %)
523 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
524 )))
525
526 (% _mstvisible="6" %)
527 (((
528 (% _mstvisible="7" %)
529 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
530 )))
531 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
532 (((
533 (% _mstvisible="6" %)
534 (((
535 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
536 BAT Status &
537 )))
538
539 (% _mstvisible="6" %)
540 (((
541 (% _mstvisible="7" %)
542 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
543 )))
544 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
545 (((
546 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
547 Status & Ext
548 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
549 (((
550 (% _mstvisible="6" %)
551 (((
552 (% _mstvisible="7" %)
553 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
554 )))
555 )))
556
557 (% _mstvisible="1" %)
558 * (% _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**
559
560 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:469px" %)
561 (% _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]
562 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
563 (((
564 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
565 BAT Status
566
567 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
568 00(b): Ultra Low ( BAT <= 2.50v)
569
570 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
571 01(b): Low  (2.50v <=BAT <= 2.55v)
572
573 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
574 10(b): OK   (2.55v <= BAT <=2.65v)
575
576 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
577 11(b): Good   (BAT >= 2.65v)
578 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
579 (((
580 (% _mstvisible="6" %)
581 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
582
583 (% _mstvisible="6" %)
584
585 )))
586
587 (% _mstvisible="1" %)
588 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
589
590 (% _mstvisible="1" %)
591 [[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
592
593 (% _mstvisible="1" %)
594 * Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
595 * 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.
596 * 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)
597
598 (% _mstvisible="1" %)
599 == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
600
601 (% _msthash="315259" _msttexthash="20933341" _mstvisible="1" %)
602 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:
603
604 (% _mstvisible="1" %)
605 (((
606 (% _msthash="506065" _msttexthash="4753983" _mstvisible="2" %)
607 (% _mstvisible="3" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
608 )))
609
610 (% _mstvisible="1" %)
611 (((
612 (% _msthash="506066" _msttexthash="14696682" _mstvisible="2" %)
613 (% _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.
614 )))
615
616 (% _mstvisible="1" %)
617 (((
618 (% _msthash="506067" _msttexthash="180297" _mstvisible="2" %)
619 Add Datacake:
620 )))
621
622 (% _mstvisible="1" %)
623 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
624
625
626 (% _msthash="315260" _msttexthash="750178" _mstvisible="1" %)
627 Select default key as Access Key:
628
629 (% _mstvisible="1" %)
630 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
631
632 (% _msthash="315261" _msttexthash="2134964" _mstvisible="1" %)
633 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
634
635 (% _mstvisible="1" %)
636 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
637
638 (% _mstvisible="1" %)
639 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
640
641
642
643 (% _mstvisible="1" %)
644 == (% _msthash="350454" _msttexthash="323544" _mstvisible="3" %)2.6 Datalog Feature(%%) ==
645
646 (% _msthash="315262" _msttexthash="32283004" _mstvisible="1" %)
647 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.
648
649
650 (% _mstvisible="1" %)
651 === (% _msthash="886158" _msttexthash="842426" _mstvisible="3" %)2.6.1 Ways to get datalog via LoRaWAN(%%) ===
652
653 (% _msthash="315263" _msttexthash="409604" _mstvisible="1" %)
654 There are two methods:
655
656 (% _mstvisible="1" %)
657 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
658 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.
659
660 (% _mstvisible="1" %)
661 === (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
662
663 (% _msthash="315264" _msttexthash="1182285" _mstvisible="1" %)
664 LHT65N uses Unix TimeStamp format based on
665
666 (% _mstvisible="1" %)
667 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
668
669
670 (% _mstvisible="1" %)
671 (((
672 (% _msthash="506068" _msttexthash="2717234" _mstvisible="2" %)
673 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
674 )))
675
676 (% _mstvisible="1" %)
677 (((
678 (% _msthash="506069" _msttexthash="709813" _mstvisible="2" %)
679 Below is the converter example
680 )))
681
682 (% _mstvisible="1" %)
683 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
684
685 (% _msthash="315265" _msttexthash="15137317" _mstvisible="1" %)
686 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
687
688
689 (% _mstvisible="1" %)
690 === (% _msthash="359294" _msttexthash="332748" _mstvisible="3" %)2.6.3 Set Device Time(%%) ===
691
692 (% _mstvisible="1" %)
693 (((
694 (% _msthash="506070" _msttexthash="4521946" _mstvisible="2" %)
695 There are two ways to set device’s time:
696 )))
697
698 (% _mstvisible="1" %)
699 (((
700 (% _mstvisible="2" %)
701 (% _msthash="506071" _msttexthash="1498471" _mstvisible="4" %)**1. Through LoRaWAN MAC Command (Default settings)**
702 )))
703
704 (% _mstvisible="1" %)
705 (((
706 (% _msthash="506072" _msttexthash="2126267" _mstvisible="2" %)
707 User need to set SYNCMOD=1 to enable sync time via MAC command.
708 )))
709
710 (% _mstvisible="1" %)
711 (((
712 (% _msthash="506073" _msttexthash="54430324" _mstvisible="2" %)
713 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).
714 )))
715
716 (% _mstvisible="1" %)
717 (((
718 (% _msthash="506074" _msttexthash="92531127" _mstvisible="2" %)
719 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.
720 )))
721
722 (% _mstvisible="1" %)
723 (((
724 (% _mstvisible="2" %)
725
726 )))
727
728 (% _mstvisible="1" %)
729 (((
730 (% _mstvisible="2" %)
731 (% _msthash="506075" _msttexthash="329719" _mstvisible="4" %)**2. Manually Set Time**
732 )))
733
734 (% _mstvisible="1" %)
735 (((
736 (% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
737 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
738
739 (% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
740
741 )))
742
743 (% _mstvisible="1" %)
744 === (% _msthash="460759" _msttexthash="430001" _mstvisible="3" %)2.6.4 Poll sensor value(%%) ===
745
746 (% _msthash="315266" _msttexthash="4955821" _mstvisible="1" %)
747 User can poll sensor value based on timestamps from the server. Below is the downlink command.
748
749 (% _mstvisible="1" %)
750 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
751
752 (% _mstvisible="1" %)
753 (((
754 (% _msthash="506077" _msttexthash="14670916" _mstvisible="2" %)
755 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.
756 )))
757
758 (% _mstvisible="1" %)
759 (((
760 (% _mstvisible="2" %)
761 For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(% _mstvisible="3" style="display:none" %)
762 )))
763
764 (% _mstvisible="1" %)
765 (((
766 (% _msthash="506078" _msttexthash="6907459" _mstvisible="2" %)
767 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
768 )))
769
770 (% _mstvisible="1" %)
771 (((
772 (% _msthash="506079" _msttexthash="23531573" _mstvisible="2" %)
773 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
774 )))
775
776
777 (% _mstvisible="1" %)
778 === (% _msthash="650923" _msttexthash="614185" _mstvisible="3" %)2.6.5 Datalog Uplink payload(%%) ===
779
780 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
781 The Datalog poll reply uplink will use below payload format.
782
783 (% _mstvisible="1" %)
784 (((
785 (% _mstvisible="2" %)
786 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
787 )))
788
789 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
790 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 93px;" %)(% _mstvisible="5" %)
791 (((
792 (% _mstvisible="6" %)
793 (((
794 (% _mstvisible="7" %)
795 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
796 )))
797 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
798 (((
799 (% _mstvisible="6" %)
800 (((
801 (% _mstvisible="7" %)
802 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
803 )))
804 )))|=(% _mstvisible="4" style="width: 102px;" %)(% _mstvisible="5" %)
805 (((
806 (% _mstvisible="6" %)
807 (((
808 (% _mstvisible="7" %)
809 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
810 )))
811 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
812 (((
813 (% _mstvisible="6" %)
814 (((
815 (% _mstvisible="7" %)
816 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
817 )))
818 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
819 (((
820 (% _mstvisible="6" %)
821 (((
822 (% _mstvisible="7" %)
823 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
824 )))
825 )))|=(% _mstvisible="4" style="width: 48px;" %)(% _mstvisible="5" %)
826 (((
827 (% _mstvisible="6" %)
828 (((
829 (% _mstvisible="7" %)
830 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
831 )))
832 )))
833 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
834 (((
835 (% _mstvisible="6" %)
836 (((
837 (% _mstvisible="7" %)
838 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
839 )))
840 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
841 (((
842 (% _mstvisible="6" %)
843 (((
844 (% _mstvisible="7" %)
845 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
846 )))
847 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
848 (((
849 (% _mstvisible="6" %)
850 (((
851 (% _mstvisible="7" %)
852 (((
853 (% _mstvisible="8" %)
854 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
855 )))
856 )))
857
858 (% _mstvisible="6" %)
859 (((
860 (% _mstvisible="7" %)
861 (((
862 (% _mstvisible="8" %)
863 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
864 )))
865 )))
866 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
867 (((
868 (% _mstvisible="6" %)
869 (((
870 (% _mstvisible="7" %)
871 (((
872 (% _mstvisible="8" %)
873 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
874 )))
875 )))
876
877 (% _mstvisible="6" %)
878 (((
879 (% _mstvisible="7" %)
880 (((
881 (% _mstvisible="8" %)
882 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
883 )))
884 )))
885 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
886 (((
887 (% _mstvisible="6" %)
888 (((
889 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
890 Poll message flag & Ext
891 )))
892 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
893 (((
894 (% _mstvisible="6" %)
895 (((
896 (% _mstvisible="7" %)
897 (((
898 (% _mstvisible="8" %)
899 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
900 )))
901 )))
902
903 (% _mstvisible="6" %)
904 (((
905 (% _mstvisible="7" %)
906 (((
907 (% _mstvisible="8" %)
908
909 )))
910 )))
911 )))
912
913 (% _mstvisible="1" %)
914 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
915
916 (% _mstvisible="1" %)
917 [[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
918
919 (% _mstvisible="1" %)
920 (((
921 (% _mstvisible="2" %)
922 (((
923 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
924 Poll Message Flag: 1: This message is a poll message reply.
925 )))
926 )))
927
928 (% _mstvisible="1" %)
929 * (% _mstvisible="3" %)
930 (((
931 (% _mstvisible="4" %)
932 (((
933 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
934 Poll Message Flag is set to 1.
935 )))
936 )))
937 * (% _mstvisible="3" %)
938 (((
939 (% _mstvisible="4" %)
940 (((
941 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
942 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
943 )))
944 )))
945
946 (% _mstvisible="1" %)
947 (((
948 (% _mstvisible="2" %)
949 (((
950 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
951
952
953 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
954 For example, in US915 band, the max payload for different DR is:
955 )))
956 )))
957
958 (% _mstvisible="1" %)
959 (((
960 (% _mstvisible="2" %)
961 (((
962 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
963 a) DR0: max is 11 bytes so one entry of data
964 )))
965 )))
966
967 (% _mstvisible="1" %)
968 (((
969 (% _mstvisible="2" %)
970 (((
971 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
972 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
973 )))
974 )))
975
976 (% _mstvisible="1" %)
977 (((
978 (% _mstvisible="2" %)
979 (((
980 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
981 c) DR2: total payload includes 11 entries of data
982 )))
983 )))
984
985 (% _mstvisible="1" %)
986 (((
987 (% _mstvisible="2" %)
988 (((
989 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
990 d) DR3: total payload includes 22 entries of data.
991 )))
992 )))
993
994 (% _mstvisible="1" %)
995 (((
996 (% _mstvisible="2" %)
997 (((
998 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
999 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
1000 )))
1001 )))
1002
1003
1004 (% _mstvisible="1" style="text-align: left;" %)
1005 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
1006
1007 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
1008 If LHT65N has below data inside Flash:
1009
1010 (% _mstvisible="1" %)
1011 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
1012
1013 (% _mstvisible="1" %)
1014 (((
1015 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
1016 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
1017 )))
1018
1019 (% _mstvisible="1" %)
1020 (((
1021 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
1022 Where : Start time: 60065F97 = time 21/1/19 04:27:03
1023 )))
1024
1025 (% _mstvisible="1" %)
1026 (((
1027 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
1028 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
1029 )))
1030
1031 (% _mstvisible="1" %)
1032 (((
1033 (% _mstvisible="2" %)
1034
1035 )))
1036
1037 (% _mstvisible="1" %)
1038 (((
1039 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
1040 LHT65N will uplink this payload.
1041 )))
1042
1043 (% _mstvisible="1" %)
1044 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
1045
1046 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
1047 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
1048
1049 Where the first 11 bytes is for the first entry:
1050
1051 7FFF089801464160065F97
1052
1053 Ext sensor data=0x7FFF/100=327.67
1054
1055 Temp=0x0898/100=22.00
1056
1057 Hum=0x0146/10=32.6
1058
1059 poll message flag & Ext=0x41,means reply data,Ext=1
1060
1061 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
1062
1063
1064 (% _mstvisible="1" style="text-align: left;" %)
1065 == (% _msthash="244504" _msttexthash="177736" _mstvisible="3" %)2.7 Alarm Mode(%%) ==
1066
1067 (% _msthash="315279" _msttexthash="16493308" _mstvisible="1" style="text-align: left;" %)
1068 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.
1069
1070 (% _mstvisible="1" %)
1071 (((
1072 (% _mstvisible="2" style="text-align: left;" %)
1073 (% _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.
1074 )))
1075
1076 (% _mstvisible="1" style="text-align: left;" %)
1077 (% _msthash="315280" _msttexthash="363480" _mstvisible="3" %)**AT COMMAND FOR ALARM MODE:**
1078
1079 (% _mstvisible="1" class="box infomessage" %)
1080 (((
1081 (% _msthash="506086" _msttexthash="2193529" _mstvisible="2" style="text-align: left;" %)
1082 (% _istranslated="1" _mstmutation="1" _mstvisible="4" %)**AT+WMOD=1**(%%): Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1083
1084 (% _msthash="506087" _msttexthash="3671265" _mstvisible="2" style="text-align: left;" %)
1085 (% _istranslated="1" _mstvisible="4" %)**AT+CITEMP=1**(%%): The interval between checking the alarm temperature. (In minutes)
1086
1087 (% _msthash="506088" _msttexthash="3310437" _mstvisible="2" style="text-align: left;" %)
1088 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP**(%%): Gets or sets the alarm range of the internal temperature sensor
1089
1090 (% _mstvisible="2" style="text-align: left;" %)
1091 (% _istranslated="1" _mstmutation="1" %)**AT+ARTEMP=？ **(%%): Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1092
1093 (% _msthash="506089" _msttexthash="3590067" _mstvisible="2" style="text-align: left;" %)
1094 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP=45,105**(%%): Set the internal temperature sensor alarm range from 45 to 105.
1095 )))
1096
1097
1098
1099 (% _msthash="72514" _msttexthash="253149" _mstvisible="1" style="text-align: left;" %)
1100 == (% _istranslated="1" _msthash="168103" _msttexthash="59969" _mstvisible="3" %)2.8 (%%)LED Indicator ==
1101
1102 (% _mstvisible="1" %)
1103 (((
1104 (% _msthash="197769" _msttexthash="2924142" style="text-align: left;" %)
1105 The LHT65 has a triple color LED which for easy showing different stage .
1106
1107 (% _msthash="289211" _msttexthash="3402659" style="text-align: left;" %)
1108 While user press ACT button, the LED will work as per LED status with ACT button.
1109 )))
1110
1111 (% _mstvisible="1" %)
1112 (((
1113 (% _msthash="506092" _msttexthash="521573" _mstvisible="2" style="text-align: left;" %)
1114 In a normal working state:
1115 )))
1116
1117 (% _mstvisible="1" %)
1118 * (% _mstvisible="3" %)
1119 (((
1120 (% _msthash="903005" _msttexthash="1647204" _mstvisible="4" %)
1121 For each uplink, the BLUE LED or RED LED will blink (% _msthash="903005" _msttexthash="46254" _mstvisible="3" %)once(%%).(% style="display:none" %)
1122
1123 (% _msthash="197771" _msttexthash="1202526" %)
1124 (% _msthash="903005" _msttexthash="1647204" _mstvisible="3" %)BLUE LED when external sensor is connected
1125 )))
1126 * (% _mstvisible="3" %)
1127 (((
1128 (% _msthash="903007" _msttexthash="1334749" _mstvisible="4" %)
1129 RED LED when external sensor is not connected
1130 )))
1131 * (% _mstvisible="3" %)
1132 (((
1133 (% _msthash="903008" _msttexthash="1875640" _mstvisible="4" %)
1134 For each success downlink, the PURPLE LED will blink once
1135 )))
1136
1137 (% _mstvisible="1" style="text-align: left;" %)
1138 == (% _msthash="112034" _msttexthash="277511" _mstvisible="3" %)2.9 installation(%%) ==
1139
1140 (% _mstvisible="1" %)
1141 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1142
1143
1144 (% _msthash="604150" _msttexthash="563212" _mstvisible="1" style="text-align: left;" %)
1145 = (% _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(%%) =
1146
1147 (% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1148 == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(%%) E3 Temperature Probe ==
1149
1150 (% _mstvisible="1" %)
1151 [[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"]]
1152
1153
1154 (% _msthash="315354" _msttexthash="1270971" _mstvisible="1" style="text-align: left;" %)
1155 Temperature sensor with 2 meters cable long
1156
1157 (% _mstvisible="1" %)
1158 * Resolution: 0.0625 °C
1159 * ±0.5°C accuracy from -10°C to +85°C
1160 * ±2°C accuracy from -55°C to +125°C
1161 * Operating Range: -40 ~~ 125 °C
1162 * -55°C to 125°C
1163 * Working voltage 2.35v ~~ 5v
1164
1165 (% _mstvisible="1" style="text-align: left;" %)
1166 = (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) =
1167
1168 (% _mstvisible="1" %)
1169 (((
1170 (% _msthash="506246" _msttexthash="2005926" _mstvisible="2" style="text-align: left;" %)
1171 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1172 )))
1173
1174 (% _mstvisible="1" %)
1175 * (% _mstvisible="3" %)
1176 (((
1177 (% _msthash="903318" _msttexthash="635544" _mstvisible="4" %)
1178 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1179 )))
1180 * (% _mstvisible="3" %)
1181 (((
1182 (% _msthash="903319" _msttexthash="2004301" _mstvisible="4" %)
1183 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1184 )))
1185
1186 (% _mstvisible="1" %)
1187 (((
1188 (% _mstvisible="2" style="text-align: left;" %)
1189
1190 )))
1191
1192 (% _mstvisible="1" %)
1193 (((
1194 (% _msthash="506248" _msttexthash="2144051" _mstvisible="2" style="text-align: left;" %)
1195 There are two kinds of commands to configure LHT65N, they are:
1196 )))
1197
1198 (% _mstvisible="1" %)
1199 (((
1200 (% _mstvisible="2" style="text-align: left;" %)
1201 (% _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" %).
1202 )))
1203
1204 (% _mstvisible="1" %)
1205 (((
1206 (% _msthash="506250" _msttexthash="774527" _mstvisible="2" style="text-align: left;" %)
1207 These commands are to configure:
1208 )))
1209
1210 (% _mstvisible="1" %)
1211 * (% _mstvisible="3" %)
1212 (((
1213 (% _msthash="903320" _msttexthash="1503580" _mstvisible="4" %)
1214 General system settings like: uplink interval.
1215 )))
1216 * (% _mstvisible="3" %)
1217 (((
1218 (% _msthash="903321" _msttexthash="1244334" _mstvisible="4" %)
1219 LoRaWAN protocol & radio-related commands.
1220 )))
1221
1222 (% _mstvisible="1" %)
1223 (((
1224 (% _msthash="506251" _msttexthash="8343023" _mstvisible="2" style="text-align: left;" %)
1225 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]]
1226 )))
1227
1228 (% _mstvisible="1" %)
1229 (((
1230 (% _mstvisible="2" style="text-align: left;" %)
1231
1232 )))
1233
1234 (% _mstvisible="1" %)
1235 (((
1236 (% _mstvisible="2" style="text-align: left;" %)
1237 (% _mstvisible="3" style="color:#4f81bd" %)* **Commands special design for LHT65N**
1238 )))
1239
1240 (% _mstvisible="1" %)
1241 (((
1242 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1243 These commands are only valid for LHT65N, as below:
1244
1245 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1246
1247 )))
1248
1249 (% _mstvisible="1" style="text-align: left;" %)
1250 == (% _msthash="708253" _msttexthash="668772" _mstvisible="3" %)4.1 Set Transmit Interval Time(%%) ==
1251
1252 (% _msthash="315355" _msttexthash="1659268" _mstvisible="1" style="text-align: left;" %)
1253 Feature: Change LoRaWAN End Node Transmit Interval.
1254
1255 (% _mstvisible="1" style="text-align: left;" %)
1256 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1257
1258 (% _mstvisible="1" %)
1259 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1260
1261 (% _mstvisible="1" %)
1262 (((
1263 (% _mstvisible="2" style="text-align: left;" %)
1264
1265
1266 (% _mstvisible="2" style="text-align: left;" %)
1267 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
1268 )))
1269
1270 (% _mstvisible="1" %)
1271 (((
1272 (% _msthash="506256" _msttexthash="1996592" _mstvisible="2" style="text-align: left;" %)
1273 Format: Command Code (0x01) followed by 3 bytes time value.
1274 )))
1275
1276 (% _mstvisible="1" %)
1277 (((
1278 (% _msthash="506257" _msttexthash="12934649" _mstvisible="2" style="text-align: left;" %)
1279 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1280 )))
1281
1282 (% _mstvisible="1" %)
1283 * (% _mstvisible="3" %)
1284 (((
1285 (% _msthash="903322" _msttexthash="3250546" _mstvisible="4" %)
1286 (% _mstvisible="5" %)**Example 1**(%%): Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1287 )))
1288 * (% _mstvisible="3" %)
1289 (((
1290 (% _msthash="903323" _msttexthash="3253315" _mstvisible="4" %)
1291 (% _mstvisible="5" %)**Example 2**(%%): Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1292
1293
1294 (% _msthash="903323" _msttexthash="3253315" _mstvisible="4" %)
1295
1296 )))
1297
1298 (% _mstvisible="1" style="text-align: left;" %)
1299 == (% _msthash="614770" _msttexthash="578240" _mstvisible="3" %)4.2 Set External Sensor Mode(%%) ==
1300
1301 (% _msthash="315357" _msttexthash="975117" _mstvisible="1" style="text-align: left;" %)
1302 Feature: Change External Sensor Mode.
1303
1304 (% _mstvisible="1" style="text-align: left;" %)
1305 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1306
1307 (% _mstvisible="1" %)
1308 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1309
1310 (% _mstvisible="1" %)
1311 (((
1312 (% _mstvisible="2" style="text-align: left;" %)
1313
1314
1315 (% _mstvisible="2" style="text-align: left;" %)
1316 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1317 )))
1318
1319 (% _mstvisible="1" %)
1320 (((
1321 (% _msthash="506259" _msttexthash="395629" _mstvisible="2" style="text-align: left;" %)
1322 Total bytes: 2 ~~ 5 bytes
1323 )))
1324
1325 (% _mstvisible="1" %)
1326 (((
1327 (% _mstvisible="2" %)
1328 (% _msthash="506260" _msttexthash="104767" _mstvisible="4" %)**Example:**
1329 )))
1330
1331 (% _mstvisible="1" %)
1332 * (% _mstvisible="3" %)
1333 (((
1334 (% _msthash="903324" _msttexthash="934973" _mstvisible="4" %)
1335 0xA201: Set external sensor type to E1
1336 )))
1337 * (% _mstvisible="3" %)
1338 (((
1339 (% _msthash="903325" _msttexthash="354770" _mstvisible="4" %)
1340 0xA209: Same as AT+EXT=9
1341 )))
1342 * (% _mstvisible="3" %)
1343 (((
1344 (% _msthash="903326" _msttexthash="639067" _mstvisible="4" %)
1345 0xA20702003c,Same as AT+SETCNT=60
1346
1347
1348 (% _msthash="903326" _msttexthash="639067" _mstvisible="4" %)
1349
1350 )))
1351
1352 (% _mstvisible="1" style="text-align: left;" %)
1353 == (% _msthash="1562483" _msttexthash="1445717" _mstvisible="3" %)4.3 Enable/Disable uplink Temperature probe ID(%%) ==
1354
1355 (% _msthash="315359" _msttexthash="2977572" _mstvisible="1" style="text-align: left;" %)
1356 Feature: If PID is enabled, device will send the temperature probe ID on:
1357
1358 (% _mstvisible="1" %)
1359 * First Packet after OTAA Join
1360 * Every 24 hours since the first packet.
1361
1362 (% _msthash="315360" _msttexthash="658814" _mstvisible="1" style="text-align: left;" %)
1363 PID is default set to disable (0)
1364
1365 (% _mstvisible="1" style="text-align: left;" %)
1366 (% style="color:#4f81bd" %)**AT Command:**
1367
1368 (% _mstvisible="1" %)
1369 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1370
1371
1372 (% _mstvisible="1" style="text-align: left;" %)
1373 (% style="color:#4f81bd" %)**Downlink Command:**
1374
1375 (% _mstvisible="1" %)
1376 * 0xA800  **~-~->** AT+PID=0
1377 * 0xA801     **~-~->** AT+PID=1
1378
1379 (% _mstvisible="1" style="text-align: left;" %)
1380 == (% _msthash="266344" _msttexthash="242879" _mstvisible="3" %)4.4 Set Password(%%) ==
1381
1382 (% _msthash="315363" _msttexthash="1170728" _mstvisible="1" style="text-align: left;" %)
1383 Feature: Set device password, max 9 digits
1384
1385 (% _mstvisible="1" style="text-align: left;" %)
1386 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1387
1388 (% _mstvisible="1" %)
1389 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1390
1391 (% _mstvisible="1" %)
1392 (((
1393 (% _mstvisible="2" style="text-align: left;" %)
1394
1395
1396 (% _mstvisible="2" style="text-align: left;" %)
1397 (% style="color:#4f81bd" %)**Downlink Command:**
1398 )))
1399
1400 (% _mstvisible="1" %)
1401 (((
1402 (% _msthash="506262" _msttexthash="974311" _mstvisible="2" style="text-align: left;" %)
1403 No downlink command for this feature.
1404
1405 (% _msthash="506262" _msttexthash="974311" _mstvisible="2" style="text-align: left;" %)
1406
1407 )))
1408
1409 (% _mstvisible="1" style="text-align: left;" %)
1410 == (% _msthash="306956" _msttexthash="281918" _mstvisible="3" %)4.5 Quit AT Command(%%) ==
1411
1412 (% _msthash="315365" _msttexthash="4616456" _mstvisible="1" style="text-align: left;" %)
1413 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1414
1415 (% _mstvisible="1" style="text-align: left;" %)
1416 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1417
1418 (% _mstvisible="1" %)
1419 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1420
1421
1422 (% _mstvisible="1" style="text-align: left;" %)
1423 (% style="color:#4f81bd" %)**Downlink Command:**
1424
1425 (% _msthash="315368" _msttexthash="974311" _mstvisible="1" style="text-align: left;" %)
1426 No downlink command for this feature.
1427
1428
1429 (% _mstvisible="1" style="text-align: left;" %)
1430 == (% _msthash="362752" _msttexthash="334919" _mstvisible="3" %)4.6 Set to sleep mode(%%) ==
1431
1432 (% _msthash="315369" _msttexthash="779688" _mstvisible="1" style="text-align: left;" %)
1433 Feature: Set device to sleep mode
1434
1435 (% _mstvisible="1" style="text-align: left;" %)
1436 (% style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1437
1438 (% _mstvisible="1" %)
1439 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1440
1441
1442 (% _mstvisible="1" %)
1443 (% style="color:#4f81bd" %)**Downlink Command:**
1444
1445 (% _mstvisible="1" %)
1446 * There is no downlink command to set to Sleep mode.
1447
1448 (% _mstvisible="1" %)
1449 == (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) ==
1450
1451 (% _msthash="315372" _msttexthash="2565524" _mstvisible="1" %)
1452 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1453
1454 (% _mstvisible="1" %)
1455 (% style="color:#4f81bd" %)**AT Command:**
1456
1457 (% _mstvisible="1" %)
1458 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1459
1460
1461 (% _mstvisible="1" %)
1462 (% style="color:#4f81bd" %)**Downlink Command:**
1463
1464 (% _msthash="315375" _msttexthash="2898571" _mstvisible="1" %)
1465 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1466
1467
1468 (% _mstvisible="1" %)
1469 == (% _msthash="376779" _msttexthash="348712" _mstvisible="3" %)4.8 Set Time Sync Mode(%%) ==
1470
1471 (% _mstvisible="1" %)
1472 (((
1473 (% _msthash="506263" _msttexthash="11748321" _mstvisible="2" %)
1474 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1475 )))
1476
1477 (% _mstvisible="1" %)
1478 (((
1479 (% _msthash="506264" _msttexthash="6530264" _mstvisible="2" %)
1480 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.
1481 )))
1482
1483 (% _mstvisible="1" %)
1484 (((
1485 (% _mstvisible="2" %)
1486 (% style="color:#4f81bd" %)**AT Command:**
1487 )))
1488
1489 (% _mstvisible="1" %)
1490 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1491
1492
1493 (% _mstvisible="1" %)
1494 (% style="color:#4f81bd" %)**Downlink Command:**
1495
1496 (% _msthash="315377" _msttexthash="479648" _mstvisible="1" %)
1497 0x28 01 ~/~/ Same As AT+SYNCMOD=1
1498
1499 (% _msthash="315378" _msttexthash="479076" _mstvisible="1" %)
1500 0x28 00 ~/~/ Same As AT+SYNCMOD=0
1501
1502
1503 (% _mstvisible="1" %)
1504 == (% _msthash="536432" _msttexthash="502528" _mstvisible="3" %)4.9 Set Time Sync Interval(%%) ==
1505
1506 (% _msthash="315379" _msttexthash="3065777" _mstvisible="1" %)
1507 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1508
1509 (% _mstvisible="1" %)
1510 (% style="color:#4f81bd" %)**AT Command:**
1511
1512 (% _mstvisible="1" %)
1513 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1514
1515
1516 (% _mstvisible="1" %)
1517 (% style="color:#4f81bd" %)**Downlink Command:**
1518
1519 (% _msthash="315382" _msttexthash="590044" _mstvisible="1" %)
1520 0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
1521
1522
1523 (% _mstvisible="1" %)
1524 == (% _msthash="927901" _msttexthash="882570" _mstvisible="3" %)4.10 Print data entries base on page.(%%) ==
1525
1526 (% _msthash="315383" _msttexthash="3233334" _mstvisible="1" %)
1527 Feature: Print the sector data from start page to stop page (max is 416 pages).
1528
1529 (% _mstvisible="1" %)
1530 (% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1531
1532 (% _mstvisible="1" %)
1533 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1534
1535
1536 (% _mstvisible="1" %)
1537 (% style="color:#4f81bd" %)**Downlink Command:**
1538
1539 (% _msthash="315386" _msttexthash="799539" _mstvisible="1" %)
1540 No downlink commands for feature
1541
1542
1543 (% _mstvisible="1" %)
1544 == (% _msthash="788762" _msttexthash="747149" _mstvisible="3" %)4.11 Print last few data entries.(%%) ==
1545
1546 (% _msthash="315387" _msttexthash="1101009" _mstvisible="1" %)
1547 Feature: Print the last few data entries
1548
1549 (% _mstvisible="1" %)
1550 (% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1551
1552 (% _mstvisible="1" %)
1553 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1554
1555
1556 (% _mstvisible="1" %)
1557 (% style="color:#4f81bd" %)**Downlink Command:**
1558
1559 (% _msthash="315390" _msttexthash="799539" _mstvisible="1" %)
1560 No downlink commands for feature
1561
1562
1563 (% _mstvisible="1" %)
1564 == (% _msthash="437814" _msttexthash="408057" _mstvisible="3" %)4.12 Clear Flash Record(%%) ==
1565
1566 (% _msthash="315391" _msttexthash="1609075" _mstvisible="1" %)
1567 Feature: Clear flash storage for data log feature.
1568
1569 (% _mstvisible="1" %)
1570 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1571
1572 (% _mstvisible="1" %)
1573 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1574
1575
1576 (% _mstvisible="1" %)
1577 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1578
1579 (% _mstvisible="1" %)
1580 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1581
1582 (% _mstvisible="1" %)
1583 == (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) ==
1584
1585 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1586 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.
1587
1588
1589 (% _mstvisible="1" %)
1590 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1591
1592 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1593 The default factory setting is 0
1594
1595 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1596 (% _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**
1597 (% _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
1598
1599 (% _mstvisible="1" %)
1600 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1601
1602 (% _mstvisible="1" %)
1603 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1604
1605 (% _mstvisible="1" %)
1606 = (% _msthash="568737" _msttexthash="502827" _mstvisible="3" %)5. Battery & How to replace(%%) =
1607
1608 (% _mstvisible="1" %)
1609 == (% _msthash="265486" _msttexthash="242073" _mstvisible="3" %)5.1 Battery Type(%%) ==
1610
1611 (% _msthash="315398" _msttexthash="33754799" _mstvisible="1" %)
1612 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.
1613
1614 (% _mstvisible="1" %)
1615 (((
1616 (% _mstvisible="2" %)
1617 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1618 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1619 )))
1620
1621 (% _mstvisible="1" %)
1622 (((
1623 (% _mstvisible="2" %)
1624 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1625
1626 )))
1627
1628 (% _mstvisible="1" %)
1629 == (% _msthash="353795" _msttexthash="326703" _mstvisible="3" %)5.2 Replace Battery(%%) ==
1630
1631 (% _msthash="315399" _msttexthash="11289278" _mstvisible="1" %)
1632 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.
1633
1634 (% _mstvisible="1" %)
1635 [[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"]]
1636
1637 (% _mstvisible="1" %)
1638 == (% _msthash="494650" _msttexthash="462241" _mstvisible="3" %)5.3 Battery Life Analyze(%%) ==
1639
1640 (% _mstvisible="1" %)
1641 (((
1642 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1643 (((
1644 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:
1645 [[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]]
1646 )))
1647
1648 (((
1649
1650 )))
1651
1652 (((
1653 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]]
1654 )))
1655
1656
1657 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1658 = (% _msthash="183170" _msttexthash="163566" _mstvisible="3" %)6. FAQ(%%) =
1659
1660 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1661 == 6.1 How to use AT Command? ==
1662
1663 (((
1664 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.
1665 )))
1666
1667 [[image:image-20220530085651-1.png]]
1668
1669
1670 **Connection:**
1671
1672 ✓** USB to TTL GND <~-~->GND**
1673
1674 **✓ USB to TTL RXD <~-~-> D+**
1675
1676 **✓ USB to TTL TXD <~-~-> A11**
1677
1678 **✓ USB to TTL 3.3V <~-~-> D-**
1679
1680
1681 (((
1682 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.
1683 )))
1684
1685 (((
1686 Input password and ATZ to activate LHT65N,As shown below:
1687 )))
1688
1689 [[image:image-20220530095701-4.png]]
1690
1691
1692 AT Command List is as below:
1693
1694 AT+<CMD>? : Help on <CMD>
1695
1696 AT+<CMD> : Run <CMD>
1697
1698 AT+<CMD>=<value> : Set the value
1699
1700 AT+<CMD>=? : Get the value
1701
1702 AT+DEBUG:Set more info output
1703
1704 ATZ: Trig a reset of the MCU
1705
1706 AT+FDR: Reset Parameters to Factory Default, Keys Reserve
1707
1708 AT+DEUI: Get or Set the Device EUI
1709
1710 AT+DADDR: Get or Set the Device Address
1711
1712 AT+APPKEY: Get or Set the Application Key
1713
1714 AT+NWKSKEY: Get or Set the Network Session Key
1715
1716 AT+APPSKEY: Get or Set the Application Session Key
1717
1718 AT+APPEUI: Get or Set the Application EUI
1719
1720 AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1721
1722 AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1723
1724 AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)
1725
1726 AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1727
1728 AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1729
1730 AT+RX2FQ: Get or Set the Rx2 window frequency
1731
1732 AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1733
1734 AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1735
1736 AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1737
1738 AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1739
1740 AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1741
1742 AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1743
1744 AT+NWKID: Get or Set the Network ID
1745
1746 AT+FCU: Get or Set the Frame Counter Uplink
1747
1748 AT+FCD: Get or Set the Frame Counter Downlink
1749
1750 AT+CLASS: Get or Set the Device Class
1751
1752 AT+JOIN: Join network
1753
1754 AT+NJS: Get the join status
1755
1756 AT+SENDB: Send hexadecimal data along with the application port
1757
1758 AT+SEND: Send text data along with the application port
1759
1760 AT+RECVB: Print last received data in binary format (with hexadecimal values)
1761
1762 AT+RECV: Print last received data in raw format
1763
1764 AT+VER: Get current image version and Frequency Band
1765
1766 AT+CFM: Get or Set the confirmation mode (0-1)
1767
1768 AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1769
1770 AT+SNR: Get the SNR of the last received packet
1771
1772 AT+RSSI: Get the RSSI of the last received packet
1773
1774 AT+TDC: Get or set the application data transmission interval in ms
1775
1776 AT+PORT: Get or set the application port
1777
1778 AT+DISAT: Disable AT commands
1779
1780 AT+PWORD: Set password, max 9 digits
1781
1782 AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1783
1784 AT+CHE: Get or Set eight channels mode,Only for US915,AU915,CN470
1785
1786 AT+PDTA: Print the sector data from start page to stop page
1787
1788 AT+PLDTA: Print the last few sets of data
1789
1790 AT+CLRDTA: Clear the storage, record position back to 1st
1791
1792 AT+SLEEP: Set sleep mode
1793
1794 AT+EXT: Get or Set external sensor model
1795
1796 AT+BAT: Get the current battery voltage in mV
1797
1798 AT+CFG: Print all configurations
1799
1800 AT+WMOD: Get or Set Work Mode
1801
1802 AT+ARTEMP: Get or set the internal Temperature sensor alarm range
1803
1804 AT+CITEMP: Get or set the internal Temperature sensor collection interval in min
1805
1806 AT+SETCNT:Set the count at present
1807
1808 AT+RJTDC: Get or set the ReJoin data transmission interval in min
1809
1810 AT+RPL: Get or set response level
1811
1812 AT+TIMESTAMP: Get or Set UNIX timestamp in second
1813
1814 AT+LEAPSEC: Get or Set Leap Second
1815
1816 AT+SYNCMOD: Get or Set time synchronization method
1817
1818 AT+SYNCTDC: Get or set time synchronization interval in day
1819
1820 AT+PID: Get or set the PID
1821
1822
1823 )))
1824
1825 (% _mstvisible="1" %)
1826 = (% _msthash="183170" _msttexthash="163566" _mstvisible="3" %)7. Order Info(%%) =
1827
1828 (% _mstvisible="1" %)
1829 (((
1830 (% _msthash="506267" _msttexthash="432432" _mstvisible="2" %)
1831 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
1832 )))
1833
1834 (% _mstvisible="1" %)
1835 (((
1836 (% _msthash="506268" _msttexthash="686946" _mstvisible="2" %)
1837 (% _mstvisible="4" style="color:#4f81bd" %)**XX **(%%): The default frequency band
1838 )))
1839
1840 (% _mstvisible="1" %)
1841 * (% _mstvisible="3" %)
1842 (((
1843 (% _msthash="903327" _msttexthash="393341" _mstvisible="4" %)
1844 (% _mstvisible="6" style="color:#4f81bd" %)** AS923**(%%): LoRaWAN AS923 band
1845 )))
1846 * (% _mstvisible="3" %)
1847 (((
1848 (% _msthash="903328" _msttexthash="394576" _mstvisible="4" %)
1849 (% _mstvisible="6" style="color:#4f81bd" %)** AU915**(%%): LoRaWAN AU915 band
1850 )))
1851 * (% _mstvisible="3" %)
1852 (((
1853 (% _msthash="903329" _msttexthash="393913" _mstvisible="4" %)
1854 (% _mstvisible="6" style="color:#4f81bd" %)** EU433**(%%): LoRaWAN EU433 band
1855 )))
1856 * (% _mstvisible="3" %)
1857 (((
1858 (% _msthash="903330" _msttexthash="399087" _mstvisible="4" %)
1859 (% _mstvisible="6" style="color:#4f81bd" %)** EU868**(%%): LoRaWAN EU868 band
1860 )))
1861 * (% _mstvisible="3" %)
1862 (((
1863 (% _msthash="903331" _msttexthash="395109" _mstvisible="4" %)
1864 (% _mstvisible="6" style="color:#4f81bd" %)** KR920**(%%): LoRaWAN KR920 band
1865 )))
1866 * (% _mstvisible="3" %)
1867 (((
1868 (% _msthash="903332" _msttexthash="400842" _mstvisible="4" %)
1869 (% _mstvisible="6" style="color:#4f81bd" %)** US915**(%%): LoRaWAN US915 band
1870 )))
1871 * (% _mstvisible="3" %)
1872 (((
1873 (% _msthash="903333" _msttexthash="396487" _mstvisible="4" %)
1874 (% _mstvisible="6" style="color:#4f81bd" %)** IN865**(%%): LoRaWAN IN865 band
1875 )))
1876 * (% _mstvisible="3" %)
1877 (((
1878 (% _msthash="903334" _msttexthash="390923" _mstvisible="4" %)
1879 (% _mstvisible="6" style="color:#4f81bd" %)** CN470**(%%): LoRaWAN CN470 band
1880 )))
1881
1882 (% _mstvisible="1" %)
1883 (((
1884 (% _msthash="506269" _msttexthash="443495" _mstvisible="2" %)
1885 (% _mstvisible="4" style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1886 )))
1887
1888 (% _mstvisible="1" %)
1889 * (% _mstvisible="3" %)
1890 (((
1891 (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
1892 (% _mstvisible="6" style="color:#4f81bd" %)**E3**(%%): External Temperature Probe
1893
1894
1895 (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
1896
1897 )))
1898
1899 (% _mstvisible="1" %)
1900 = (% _msthash="233363" _msttexthash="211237" _mstvisible="3" %)8. Packing Info(%%) =
1901
1902 (% _mstvisible="1" %)
1903 (((
1904 (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1905
1906
1907 (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1908 (% _mstvisible="3" %)**Package Includes**(%%):
1909 )))
1910
1911 (% _mstvisible="1" %)
1912 * (% _mstvisible="3" %)
1913 (((
1914 (% _msthash="903336" _msttexthash="1033149" _mstvisible="4" %)
1915 LHT65N Temperature & Humidity Sensor x 1
1916 )))
1917 * (% _mstvisible="3" %)
1918 (((
1919 (% _msthash="903337" _msttexthash="242567" _mstvisible="4" %)
1920 Program cable x 1
1921 )))
1922 * (% _mstvisible="3" %)
1923 (((
1924 (% _msthash="903338" _msttexthash="544167" _mstvisible="4" %)
1925 Optional external sensor
1926 )))
1927
1928 (% _mstvisible="1" %)
1929 (((
1930 (% _msthash="506271" _msttexthash="403858" _mstvisible="2" %)
1931 (% _mstvisible="3" %)**Dimension and weight**(%%):
1932 )))
1933
1934 (% _mstvisible="1" %)
1935 * (% _mstvisible="3" %)
1936 (((
1937 (% _msthash="903339" _msttexthash="391807" _mstvisible="4" %)
1938 Device Size:  13.5 x 7 x 3 cm
1939 )))
1940 * (% _mstvisible="3" %)
1941 (((
1942 (% _msthash="903340" _msttexthash="285298" _mstvisible="4" %)
1943 Device Weight: 105g
1944 )))
1945 * (% _mstvisible="3" %)
1946 (((
1947 (% _msthash="903341" _msttexthash="562926" _mstvisible="4" %)
1948 Package Size / pcs : 14.5 x 8 x 5 cm
1949 )))
1950 * (% _mstvisible="3" %)
1951 (((
1952 (% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
1953 Weight / pcs : 170g
1954
1955
1956 (% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
1957
1958 )))
1959
1960 = 9. Reference =
1961
1962 * [[Datasheet, Photos, Decoder, Firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor]]
1963
1964
1965
1966 = 10. FCC Warning =
1967
1968 (% _mstvisible="1" %)
1969 (((
1970 (% _msthash="506272" _msttexthash="6034353" _mstvisible="2" %)
1971 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1972 )))
1973
1974 (% _mstvisible="1" %)
1975 (((
1976 (% _msthash="506273" _msttexthash="44097638" _mstvisible="2" %)
1977 (1) This device may not cause harmful interference；
1978 )))
1979
1980 (% _mstvisible="1" %)
1981 (((
1982 (% _msthash="506274" _msttexthash="7559773" _mstvisible="2" %)
1983 (2) this device must accept any interference received, including interference that may cause undesired operation.
1984 )))

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