Version 118.7 by Xiaoling on 2022/06/09 18:11
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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 (((
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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" %)**.**
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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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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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58 *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
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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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83 == (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3 Specification(%%) ==
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91 (% _msthash="506057" _msttexthash="671437" _mstvisible="4" %)**Built-in Temperature Sensor:**
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95 * (% _mstvisible="3" %)
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98 Resolution: 0.01 °C
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100 * (% _mstvisible="3" %)
101 (((
102 (% _msthash="902994" _msttexthash="690664" _mstvisible="4" %)
103 Accuracy Tolerance : Typ ±0.3 °C
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105 * (% _mstvisible="3" %)
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107 (% _msthash="902995" _msttexthash="504647" _mstvisible="4" %)
108 Long Term Drift: < 0.02 °C/yr
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110 * (% _mstvisible="3" %)
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113 Operating Range: -40 ~~ 85 °C
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122 (% _msthash="506058" _msttexthash="544453" _mstvisible="4" %)**Built-in Humidity Sensor:**
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126 * (% _mstvisible="3" %)
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128 (% _msthash="902997" _msttexthash="282438" _mstvisible="4" %)
129 Resolution: 0.04 %RH
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131 * (% _mstvisible="3" %)
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133 (% _msthash="902998" _msttexthash="628771" _mstvisible="4" %)
134 Accuracy Tolerance : Typ ±3 %RH
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136 * (% _mstvisible="3" %)
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139 Long Term Drift: < 0.02 °C/yr
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144 Operating Range: 0 ~~ 96 %RH
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153 (% _msthash="506059" _msttexthash="680537" _mstvisible="4" %)**External Temperature Sensor:**
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157 * (% _mstvisible="3" %)
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160 Resolution: 0.0625 °C
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162 * (% _mstvisible="3" %)
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164 (% _msthash="903002" _msttexthash="782600" _mstvisible="4" %)
165 ±0.5°C accuracy from -10°C to +85°C
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167 * (% _mstvisible="3" %)
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170 ±2°C accuracy from -55°C to +125°C
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172 * (% _mstvisible="3" %)
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175 Operating Range: -55 °C ~~ 125 °C
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183 = (% _msthash="655759" _msttexthash="618618" _mstvisible="3" %)2. Connect LHT65N to IoT Server(%%) =
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186 == (% _msthash="462371" _msttexthash="410332" _mstvisible="3" %)2.1 How does LHT65N work?(%%) ==
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191 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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197 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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204 == (% _msthash="514384" _msttexthash="458666" _mstvisible="3" %)2.2 How to Activate LHT65N?(%%) ==
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207 The LHT65N has two working modes:
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210 * **Deep Sleep Mode**: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
211 * **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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216 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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220 [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
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227 == (% _msthash="882726" _msttexthash="838526" _mstvisible="3" %)2.3 Example to join LoRaWAN network(%%) ==
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230 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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233 [[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
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236 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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240 === (% _msthash="670592" _msttexthash="634075" _mstvisible="3" %)2.3.1 Step 1: Create Device n TTN(%%) ===
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243 Create a device in TTN V3 with the OTAA keys from LHT65N.
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246 Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
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249 [[image:image-20220522232812-2.png||_mstalt="428467" _mstvisible="3" height="219" width="279"]]
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252 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
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255 Add APP EUI in the application.
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258 [[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
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267 Note: LHT65N use same payload as LHT65.
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270 [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
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274 Input APP EUI,  APP KEY and DEV EUI:
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277 [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
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281 === (% _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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284 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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287 [[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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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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300 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
301 (((
302 (% _mstvisible="6" %)
303 (% _msthash="1817478" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
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306 (% _mstvisible="6" %)
307 (% _msthash="1817479" _msttexthash="4550" _mstvisible="8" %)**2**
308 )))|=(% _mstvisible="4" style="width: 100px;" %)(% _mstvisible="5" %)
309 (((
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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 (((
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319 (% _msthash="1817482" _msttexthash="4459" _mstvisible="8" %)**1**
320 )))|=(% _mstvisible="4" style="width: 51px;" %)(% _mstvisible="5" %)
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323 (% _msthash="1817483" _msttexthash="4732" _mstvisible="8" %)**4**
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325 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
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328 (% _msthash="1817484" _msttexthash="60203" _mstvisible="8" %)**Value**
329 )))|(% _mstvisible="4" style="width:39px" %)(% _mstvisible="5" %)
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332 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo" _msthash="1817485" _msttexthash="22594" _mstvisible="7"]]
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338 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
339 )))
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341 (((
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345 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2224743" _msttexthash="105872" _mstvisible="8"]]
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349 (((
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351 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429" _mstvisible="8"]]
352 )))
353 )))|(% _mstvisible="4" style="width:47px" %)(% _mstvisible="5" %)
354 (((
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356 [[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331" _mstvisible="7"]] #
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360 [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
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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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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:
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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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384 [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
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386 (% _mstvisible="1" %)
387 === (% _msthash="411411" _msttexthash="383656" _mstvisible="3" %)2.4.2 BAT-Battery Info(%%) ===
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389 (% _msthash="315254" _msttexthash="3122912" _mstvisible="1" %)
390 These two bytes of BAT include the battery state and the actually voltage
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393 [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
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396 [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
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399 Check the battery voltage for LHT65N.
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402 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
403 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
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405 (% _mstvisible="1" %)
406 === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
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409 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
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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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418 * Temperature:  (0xF5C6-65536)/100=-26.18℃
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420 (% _mstvisible="1" %)
421 === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
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423 (% _mstvisible="1" %)
424 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
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426 (% _mstvisible="1" %)
427 * Humidity:    0x025C/10=60.4%
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429 (% _mstvisible="1" %)
430 === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
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432 (% _msthash="315256" _msttexthash="552240" _mstvisible="1" %)
433 Bytes for External Sensor:
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436 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
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438 (% _mstvisible="1" %)
439 === (% _msthash="221429" _msttexthash="200655" _mstvisible="3" %)2.4.6 Ext value(%%) ===
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441 (% _mstvisible="1" %)
442 ==== (% _msthash="1005901" _msttexthash="877578" _mstvisible="3" %)2.4.6.1 Ext~=1, E3 Temperature Sensor(%%) ====
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444 (% _mstvisible="1" %)
445 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
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447 (% _mstvisible="1" %)
448 * DS18B20 temp=0x0ADD/100=27.81℃
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450 (% _msthash="315257" _msttexthash="1038479" _mstvisible="1" %)
451 The last 2 bytes of data are meaningless
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453 (% _mstvisible="1" %)
454 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
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457 * External temperature= (0xF54F-65536)/100=-27.37℃
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459 (% _mstvisible="1" %)
460 (((
461 (% _msthash="506063" _msttexthash="1038479" _mstvisible="2" %)
462 The last 2 bytes of data are meaningless
463 )))
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465 (% _mstvisible="1" %)
466 (((
467 (% _msthash="506064" _msttexthash="21185632" _mstvisible="2" %)
468 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
469 )))
470
471
472 (% _mstvisible="1" %)
473 ==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
474
475 (% _msthash="315258" _msttexthash="41539368" _mstvisible="1" %)
476 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:
477
478 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:510px" %)
479 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
480 (((
481 (% _mstvisible="6" %)
482 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
483 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
484 (((
485 (% _mstvisible="6" %)
486 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
487 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
488 (((
489 (% _mstvisible="6" %)
490 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
491 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
492 (((
493 (% _mstvisible="6" %)
494 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
495 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
496 (((
497 (% _mstvisible="6" %)
498 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
499 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
500 (((
501 (% _mstvisible="6" %)
502 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
503 )))
504 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
505 (((
506 (% _mstvisible="6" %)
507 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
508 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
509 (((
510 (% _mstvisible="6" %)
511 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
512 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
513 (((
514 (% _mstvisible="6" %)
515 (((
516 (% _mstvisible="7" %)
517 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
518 )))
519
520 (% _mstvisible="6" %)
521 (((
522 (% _mstvisible="7" %)
523 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
524 )))
525 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
526 (((
527 (% _mstvisible="6" %)
528 (((
529 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
530 BAT Status &
531 )))
532
533 (% _mstvisible="6" %)
534 (((
535 (% _mstvisible="7" %)
536 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
537 )))
538 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
539 (((
540 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
541 Status & Ext
542 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
543 (((
544 (% _mstvisible="6" %)
545 (((
546 (% _mstvisible="7" %)
547 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
548 )))
549 )))
550
551 (% _mstvisible="1" %)
552 * (% _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**
553
554 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:469px" %)
555 (% _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]
556 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
557 (((
558 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
559 BAT Status
560
561 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
562 00(b): Ultra Low ( BAT <= 2.50v)
563
564 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
565 01(b): Low  (2.50v <=BAT <= 2.55v)
566
567 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
568 10(b): OK   (2.55v <= BAT <=2.65v)
569
570 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
571 11(b): Good   (BAT >= 2.65v)
572 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
573 (((
574 (% _mstvisible="6" %)
575 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
576
577 (% _mstvisible="6" %)
578
579 )))
580
581 (% _mstvisible="1" %)
582 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
583
584 (% _mstvisible="1" %)
585 [[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
586
587 (% _mstvisible="1" %)
588 * Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
589 * 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.
590 * 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)
591
592 (% _mstvisible="1" %)
593 == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
594
595 (% _msthash="315259" _msttexthash="20933341" _mstvisible="1" %)
596 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:
597
598 (% _mstvisible="1" %)
599 (((
600 (% _msthash="506065" _msttexthash="4753983" _mstvisible="2" %)
601 (% _mstvisible="3" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
602 )))
603
604 (% _mstvisible="1" %)
605 (((
606 (% _msthash="506066" _msttexthash="14696682" _mstvisible="2" %)
607 (% _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.
608 )))
609
610 (% _mstvisible="1" %)
611 (((
612 (% _msthash="506067" _msttexthash="180297" _mstvisible="2" %)
613 Add Datacake:
614 )))
615
616 (% _mstvisible="1" %)
617 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
618
619
620 (% _msthash="315260" _msttexthash="750178" _mstvisible="1" %)
621 Select default key as Access Key:
622
623 (% _mstvisible="1" %)
624 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
625
626 (% _msthash="315261" _msttexthash="2134964" _mstvisible="1" %)
627 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
628
629 (% _mstvisible="1" %)
630 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
631
632 (% _mstvisible="1" %)
633 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
634
635 (% _mstvisible="1" %)
636 == (% _msthash="350454" _msttexthash="323544" _mstvisible="3" %)2.6 Datalog Feature(%%) ==
637
638 (% _msthash="315262" _msttexthash="32283004" _mstvisible="1" %)
639 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.
640
641 (% _mstvisible="1" %)
642 === (% _msthash="886158" _msttexthash="842426" _mstvisible="3" %)2.6.1 Ways to get datalog via LoRaWAN(%%) ===
643
644 (% _msthash="315263" _msttexthash="409604" _mstvisible="1" %)
645 There are two methods:
646
647 (% _mstvisible="1" %)
648 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
649 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.
650
651 (% _mstvisible="1" %)
652 === (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
653
654 (% _msthash="315264" _msttexthash="1182285" _mstvisible="1" %)
655 LHT65N uses Unix TimeStamp format based on
656
657 (% _mstvisible="1" %)
658 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
659
660
661 (% _mstvisible="1" %)
662 (((
663 (% _msthash="506068" _msttexthash="2717234" _mstvisible="2" %)
664 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
665 )))
666
667 (% _mstvisible="1" %)
668 (((
669 (% _msthash="506069" _msttexthash="709813" _mstvisible="2" %)
670 Below is the converter example
671 )))
672
673 (% _mstvisible="1" %)
674 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
675
676 (% _msthash="315265" _msttexthash="15137317" _mstvisible="1" %)
677 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
678
679 (% _mstvisible="1" %)
680 === (% _msthash="359294" _msttexthash="332748" _mstvisible="3" %)2.6.3 Set Device Time(%%) ===
681
682 (% _mstvisible="1" %)
683 (((
684 (% _msthash="506070" _msttexthash="4521946" _mstvisible="2" %)
685 There are two ways to set device’s time:
686 )))
687
688 (% _mstvisible="1" %)
689 (((
690 (% _mstvisible="2" %)
691 (% _msthash="506071" _msttexthash="1498471" _mstvisible="4" %)**1. Through LoRaWAN MAC Command (Default settings)**
692 )))
693
694 (% _mstvisible="1" %)
695 (((
696 (% _msthash="506072" _msttexthash="2126267" _mstvisible="2" %)
697 User need to set SYNCMOD=1 to enable sync time via MAC command.
698 )))
699
700 (% _mstvisible="1" %)
701 (((
702 (% _msthash="506073" _msttexthash="54430324" _mstvisible="2" %)
703 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).
704 )))
705
706 (% _mstvisible="1" %)
707 (((
708 (% _msthash="506074" _msttexthash="92531127" _mstvisible="2" %)
709 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.
710 )))
711
712 (% _mstvisible="1" %)
713 (((
714 (% _mstvisible="2" %)
715
716 )))
717
718 (% _mstvisible="1" %)
719 (((
720 (% _mstvisible="2" %)
721 (% _msthash="506075" _msttexthash="329719" _mstvisible="4" %)**2. Manually Set Time**
722 )))
723
724 (% _mstvisible="1" %)
725 (((
726 (% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
727 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
728 )))
729
730 (% _mstvisible="1" %)
731 === (% _msthash="460759" _msttexthash="430001" _mstvisible="3" %)2.6.4 Poll sensor value(%%) ===
732
733 (% _msthash="315266" _msttexthash="4955821" _mstvisible="1" %)
734 User can poll sensor value based on timestamps from the server. Below is the downlink command.
735
736 (% _mstvisible="1" %)
737 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
738
739 (% _mstvisible="1" %)
740 (((
741 (% _msthash="506077" _msttexthash="14670916" _mstvisible="2" %)
742 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.
743 )))
744
745 (% _mstvisible="1" %)
746 (((
747 (% _mstvisible="2" %)
748 For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(% _mstvisible="3" style="display:none" %)
749 )))
750
751 (% _mstvisible="1" %)
752 (((
753 (% _msthash="506078" _msttexthash="6907459" _mstvisible="2" %)
754 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
755 )))
756
757 (% _mstvisible="1" %)
758 (((
759 (% _msthash="506079" _msttexthash="23531573" _mstvisible="2" %)
760 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
761 )))
762
763
764 (% _mstvisible="1" %)
765 === (% _msthash="650923" _msttexthash="614185" _mstvisible="3" %)2.6.5 Datalog Uplink payload(%%) ===
766
767 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
768 The Datalog poll reply uplink will use below payload format.
769
770 (% _mstvisible="1" %)
771 (((
772 (% _mstvisible="2" %)
773 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
774 )))
775
776 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:510px" %)
777 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
778 (((
779 (% _mstvisible="6" %)
780 (((
781 (% _mstvisible="7" %)
782 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
783 )))
784 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
785 (((
786 (% _mstvisible="6" %)
787 (((
788 (% _mstvisible="7" %)
789 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
790 )))
791 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
792 (((
793 (% _mstvisible="6" %)
794 (((
795 (% _mstvisible="7" %)
796 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
797 )))
798 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
799 (((
800 (% _mstvisible="6" %)
801 (((
802 (% _mstvisible="7" %)
803 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
804 )))
805 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
806 (((
807 (% _mstvisible="6" %)
808 (((
809 (% _mstvisible="7" %)
810 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
811 )))
812 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
813 (((
814 (% _mstvisible="6" %)
815 (((
816 (% _mstvisible="7" %)
817 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
818 )))
819 )))
820 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
821 (((
822 (% _mstvisible="6" %)
823 (((
824 (% _mstvisible="7" %)
825 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
826 )))
827 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
828 (((
829 (% _mstvisible="6" %)
830 (((
831 (% _mstvisible="7" %)
832 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
833 )))
834 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
835 (((
836 (% _mstvisible="6" %)
837 (((
838 (% _mstvisible="7" %)
839 (((
840 (% _mstvisible="8" %)
841 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
842 )))
843 )))
844
845 (% _mstvisible="6" %)
846 (((
847 (% _mstvisible="7" %)
848 (((
849 (% _mstvisible="8" %)
850 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
851 )))
852 )))
853 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
854 (((
855 (% _mstvisible="6" %)
856 (((
857 (% _mstvisible="7" %)
858 (((
859 (% _mstvisible="8" %)
860 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
861 )))
862 )))
863
864 (% _mstvisible="6" %)
865 (((
866 (% _mstvisible="7" %)
867 (((
868 (% _mstvisible="8" %)
869 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
870 )))
871 )))
872 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
873 (((
874 (% _mstvisible="6" %)
875 (((
876 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
877 Poll message flag & Ext
878 )))
879 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
880 (((
881 (% _mstvisible="6" %)
882 (((
883 (% _mstvisible="7" %)
884 (((
885 (% _mstvisible="8" %)
886 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
887 )))
888 )))
889
890 (% _mstvisible="6" %)
891 (((
892 (% _mstvisible="7" %)
893 (((
894 (% _mstvisible="8" %)
895
896 )))
897 )))
898 )))
899
900 (% _mstvisible="1" %)
901 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
902
903 (% _mstvisible="1" %)
904 [[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
905
906 (% _mstvisible="1" %)
907 (((
908 (% _mstvisible="2" %)
909 (((
910 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
911 Poll Message Flag: 1: This message is a poll message reply.
912 )))
913 )))
914
915 (% _mstvisible="1" %)
916 * (% _mstvisible="3" %)
917 (((
918 (% _mstvisible="4" %)
919 (((
920 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
921 Poll Message Flag is set to 1.
922 )))
923 )))
924 * (% _mstvisible="3" %)
925 (((
926 (% _mstvisible="4" %)
927 (((
928 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
929 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
930 )))
931 )))
932
933 (% _mstvisible="1" %)
934 (((
935 (% _mstvisible="2" %)
936 (((
937 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
938 For example, in US915 band, the max payload for different DR is:
939 )))
940 )))
941
942 (% _mstvisible="1" %)
943 (((
944 (% _mstvisible="2" %)
945 (((
946 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
947 a) DR0: max is 11 bytes so one entry of data
948 )))
949 )))
950
951 (% _mstvisible="1" %)
952 (((
953 (% _mstvisible="2" %)
954 (((
955 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
956 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
957 )))
958 )))
959
960 (% _mstvisible="1" %)
961 (((
962 (% _mstvisible="2" %)
963 (((
964 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
965 c) DR2: total payload includes 11 entries of data
966 )))
967 )))
968
969 (% _mstvisible="1" %)
970 (((
971 (% _mstvisible="2" %)
972 (((
973 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
974 d) DR3: total payload includes 22 entries of data.
975 )))
976 )))
977
978 (% _mstvisible="1" %)
979 (((
980 (% _mstvisible="2" %)
981 (((
982 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
983 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
984 )))
985 )))
986
987
988 (% _mstvisible="1" style="text-align: left;" %)
989 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
990
991 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
992 If LHT65N has below data inside Flash:
993
994 (% _mstvisible="1" %)
995 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
996
997 (% _mstvisible="1" %)
998 (((
999 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
1000 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
1001 )))
1002
1003 (% _mstvisible="1" %)
1004 (((
1005 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
1006 Where : Start time: 60065F97 = time 21/1/19 04:27:03
1007 )))
1008
1009 (% _mstvisible="1" %)
1010 (((
1011 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
1012 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
1013 )))
1014
1015 (% _mstvisible="1" %)
1016 (((
1017 (% _mstvisible="2" %)
1018
1019 )))
1020
1021 (% _mstvisible="1" %)
1022 (((
1023 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
1024 LHT65N will uplink this payload.
1025 )))
1026
1027 (% _mstvisible="1" %)
1028 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
1029
1030 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
1031 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
1032
1033 Where the first 11 bytes is for the first entry:
1034
1035 7FFF089801464160065F97
1036
1037 Ext sensor data=0x7FFF/100=327.67
1038
1039 Temp=0x0898/100=22.00
1040
1041 Hum=0x0146/10=32.6
1042
1043 poll message flag & Ext=0x41,means reply data,Ext=1
1044
1045 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
1046
1047
1048 (% _mstvisible="1" style="text-align: left;" %)
1049 == (% _msthash="244504" _msttexthash="177736" _mstvisible="3" %)2.7 Alarm Mode(%%) ==
1050
1051 (% _msthash="315279" _msttexthash="16493308" _mstvisible="1" style="text-align: left;" %)
1052 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.
1053
1054 (% _mstvisible="1" %)
1055 (((
1056 (% _mstvisible="2" style="text-align: left;" %)
1057 (% _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.
1058 )))
1059
1060 (% _mstvisible="1" style="text-align: left;" %)
1061 (% _msthash="315280" _msttexthash="363480" _mstvisible="3" %)**AT COMMAND FOR ALARM MODE:**
1062
1063 (% _mstvisible="1" class="box infomessage" %)
1064 (((
1065 (% _msthash="506086" _msttexthash="2193529" _mstvisible="2" style="text-align: left;" %)
1066 (% _istranslated="1" _mstmutation="1" _mstvisible="4" %)**AT+WMOD=1**(%%): Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1067
1068 (% _msthash="506087" _msttexthash="3671265" _mstvisible="2" style="text-align: left;" %)
1069 (% _istranslated="1" _mstvisible="4" %)**AT+CITEMP=1**(%%): The interval between checking the alarm temperature. (In minutes)
1070
1071 (% _msthash="506088" _msttexthash="3310437" _mstvisible="2" style="text-align: left;" %)
1072 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP**(%%): Gets or sets the alarm range of the internal temperature sensor
1073
1074 (% _mstvisible="2" style="text-align: left;" %)
1075 (% _istranslated="1" _mstmutation="1" %)**AT+ARTEMP=？ **(%%): Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1076
1077 (% _msthash="506089" _msttexthash="3590067" _mstvisible="2" style="text-align: left;" %)
1078 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP=45,105**(%%): Set the internal temperature sensor alarm range from 45 to 105.
1079 )))
1080
1081 (% _msthash="72514" _msttexthash="253149" _mstvisible="1" style="text-align: left;" %)
1082 == (% _istranslated="1" _msthash="168103" _msttexthash="59969" _mstvisible="3" %)2.8 (%%)LED Indicator ==
1083
1084 (% _mstvisible="1" %)
1085 (((
1086 (% _msthash="197769" _msttexthash="2924142" style="text-align: left;" %)
1087 The LHT65 has a triple color LED which for easy showing different stage .
1088
1089 (% _msthash="289211" _msttexthash="3402659" style="text-align: left;" %)
1090 While user press ACT button, the LED will work as per LED status with ACT button.
1091 )))
1092
1093 (% _mstvisible="1" %)
1094 (((
1095 (% _msthash="506092" _msttexthash="521573" _mstvisible="2" style="text-align: left;" %)
1096 In a normal working state:
1097 )))
1098
1099 (% _mstvisible="1" %)
1100 * (% _mstvisible="3" %)
1101 (((
1102 (% _msthash="903005" _msttexthash="1647204" _mstvisible="4" %)
1103 For each uplink, the BLUE LED or RED LED will blink (% _msthash="903005" _msttexthash="46254" _mstvisible="3" %)once(%%).(% style="display:none" %)
1104
1105 (% _msthash="197771" _msttexthash="1202526" %)
1106 (% _msthash="903005" _msttexthash="1647204" _mstvisible="3" %)BLUE LED when external sensor is connected
1107 )))
1108 * (% _mstvisible="3" %)
1109 (((
1110 (% _msthash="903007" _msttexthash="1334749" _mstvisible="4" %)
1111 RED LED when external sensor is not connected
1112 )))
1113 * (% _mstvisible="3" %)
1114 (((
1115 (% _msthash="903008" _msttexthash="1875640" _mstvisible="4" %)
1116 For each success downlink, the PURPLE LED will blink once
1117 )))
1118
1119 (% _mstvisible="1" %)
1120 ----
1121
1122 (% _mstvisible="1" style="text-align: left;" %)
1123 == (% _msthash="112034" _msttexthash="277511" _mstvisible="3" %)2.9 installation(%%) ==
1124
1125 (% _mstvisible="1" %)
1126 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1127
1128 (% _msthash="604150" _msttexthash="563212" _mstvisible="1" style="text-align: left;" %)
1129 = (% _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(%%) =
1130
1131 (% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1132 == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(%%) E3 Temperature Probe ==
1133
1134 (% _mstvisible="1" %)
1135 [[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"]]
1136
1137
1138 (% _msthash="315354" _msttexthash="1270971" _mstvisible="1" style="text-align: left;" %)
1139 Temperature sensor with 2 meters cable long
1140
1141 (% _mstvisible="1" %)
1142 * Resolution: 0.0625 °C
1143 * ±0.5°C accuracy from -10°C to +85°C
1144 * ±2°C accuracy from -55°C to +125°C
1145 * Operating Range: -40 ~~ 125 °C
1146 * -55°C to 125°C
1147 * Working voltage 2.35v ~~ 5v
1148
1149 (% _mstvisible="1" style="text-align: left;" %)
1150 = (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) =
1151
1152 (% _mstvisible="1" %)
1153 (((
1154 (% _msthash="506246" _msttexthash="2005926" _mstvisible="2" style="text-align: left;" %)
1155 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1156 )))
1157
1158 (% _mstvisible="1" %)
1159 * (% _mstvisible="3" %)
1160 (((
1161 (% _msthash="903318" _msttexthash="635544" _mstvisible="4" %)
1162 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1163 )))
1164 * (% _mstvisible="3" %)
1165 (((
1166 (% _msthash="903319" _msttexthash="2004301" _mstvisible="4" %)
1167 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1168 )))
1169
1170 (% _mstvisible="1" %)
1171 (((
1172 (% _mstvisible="2" style="text-align: left;" %)
1173
1174 )))
1175
1176 (% _mstvisible="1" %)
1177 (((
1178 (% _msthash="506248" _msttexthash="2144051" _mstvisible="2" style="text-align: left;" %)
1179 There are two kinds of commands to configure LHT65N, they are:
1180 )))
1181
1182 (% _mstvisible="1" %)
1183 (((
1184 (% _mstvisible="2" style="text-align: left;" %)
1185 (% _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" %).
1186 )))
1187
1188 (% _mstvisible="1" %)
1189 (((
1190 (% _msthash="506250" _msttexthash="774527" _mstvisible="2" style="text-align: left;" %)
1191 These commands are to configure:
1192 )))
1193
1194 (% _mstvisible="1" %)
1195 * (% _mstvisible="3" %)
1196 (((
1197 (% _msthash="903320" _msttexthash="1503580" _mstvisible="4" %)
1198 General system settings like: uplink interval.
1199 )))
1200 * (% _mstvisible="3" %)
1201 (((
1202 (% _msthash="903321" _msttexthash="1244334" _mstvisible="4" %)
1203 LoRaWAN protocol & radio-related commands.
1204 )))
1205
1206 (% _mstvisible="1" %)
1207 (((
1208 (% _msthash="506251" _msttexthash="8343023" _mstvisible="2" style="text-align: left;" %)
1209 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]]
1210 )))
1211
1212 (% _mstvisible="1" %)
1213 (((
1214 (% _mstvisible="2" style="text-align: left;" %)
1215
1216 )))
1217
1218 (% _mstvisible="1" %)
1219 (((
1220 (% _mstvisible="2" style="text-align: left;" %)
1221 (% _mstvisible="3" style="color:#4f81bd" %)* **Commands special design for LHT65N**
1222 )))
1223
1224 (% _mstvisible="1" %)
1225 (((
1226 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1227 These commands are only valid for LHT65N, as below:
1228
1229 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1230
1231 )))
1232
1233 (% _mstvisible="1" style="text-align: left;" %)
1234 == (% _msthash="708253" _msttexthash="668772" _mstvisible="3" %)4.1 Set Transmit Interval Time(%%) ==
1235
1236 (% _msthash="315355" _msttexthash="1659268" _mstvisible="1" style="text-align: left;" %)
1237 Feature: Change LoRaWAN End Node Transmit Interval.
1238
1239 (% _mstvisible="1" style="text-align: left;" %)
1240 (% _msthash="315356" _msttexthash="241696" _mstvisible="3" %)**AT Command: AT+TDC**
1241
1242 (% _mstvisible="1" %)
1243 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1244
1245 (% _mstvisible="1" %)
1246 (((
1247 (% _mstvisible="2" style="text-align: left;" %)
1248 (% _msthash="506255" _msttexthash="381992" _mstvisible="4" %)**Downlink Command: 0x01**
1249 )))
1250
1251 (% _mstvisible="1" %)
1252 (((
1253 (% _msthash="506256" _msttexthash="1996592" _mstvisible="2" style="text-align: left;" %)
1254 Format: Command Code (0x01) followed by 3 bytes time value.
1255 )))
1256
1257 (% _mstvisible="1" %)
1258 (((
1259 (% _msthash="506257" _msttexthash="12934649" _mstvisible="2" style="text-align: left;" %)
1260 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1261 )))
1262
1263 (% _mstvisible="1" %)
1264 * (% _mstvisible="3" %)
1265 (((
1266 (% _msthash="903322" _msttexthash="3250546" _mstvisible="4" %)
1267 (% _mstvisible="5" %)**Example 1**(%%): Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1268 )))
1269 * (% _mstvisible="3" %)
1270 (((
1271 (% _msthash="903323" _msttexthash="3253315" _mstvisible="4" %)
1272 (% _mstvisible="5" %)**Example 2**(%%): Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1273 )))
1274
1275 (% _mstvisible="1" style="text-align: left;" %)
1276 == (% _msthash="614770" _msttexthash="578240" _mstvisible="3" %)4.2 Set External Sensor Mode(%%) ==
1277
1278 (% _msthash="315357" _msttexthash="975117" _mstvisible="1" style="text-align: left;" %)
1279 Feature: Change External Sensor Mode.
1280
1281 (% _mstvisible="1" style="text-align: left;" %)
1282 (% _msthash="315358" _msttexthash="248118" _mstvisible="3" %)**AT Command: AT+EXT**
1283
1284 (% _mstvisible="1" %)
1285 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1286
1287 (% _mstvisible="1" %)
1288 (((
1289 (% _mstvisible="2" style="text-align: left;" %)
1290 (% _msthash="506258" _msttexthash="387855" _mstvisible="4" %)**Downlink Command: 0xA2**
1291 )))
1292
1293 (% _mstvisible="1" %)
1294 (((
1295 (% _msthash="506259" _msttexthash="395629" _mstvisible="2" style="text-align: left;" %)
1296 Total bytes: 2 ~~ 5 bytes
1297 )))
1298
1299 (% _mstvisible="1" %)
1300 (((
1301 (% _mstvisible="2" %)
1302 (% _msthash="506260" _msttexthash="104767" _mstvisible="4" %)**Example:**
1303 )))
1304
1305 (% _mstvisible="1" %)
1306 * (% _mstvisible="3" %)
1307 (((
1308 (% _msthash="903324" _msttexthash="934973" _mstvisible="4" %)
1309 0xA201: Set external sensor type to E1
1310 )))
1311 * (% _mstvisible="3" %)
1312 (((
1313 (% _msthash="903325" _msttexthash="354770" _mstvisible="4" %)
1314 0xA209: Same as AT+EXT=9
1315 )))
1316 * (% _mstvisible="3" %)
1317 (((
1318 (% _msthash="903326" _msttexthash="639067" _mstvisible="4" %)
1319 0xA20702003c,Same as AT+SETCNT=60
1320 )))
1321
1322 (% _mstvisible="1" style="text-align: left;" %)
1323 == (% _msthash="1562483" _msttexthash="1445717" _mstvisible="3" %)4.3 Enable/Disable uplink Temperature probe ID(%%) ==
1324
1325 (% _msthash="315359" _msttexthash="2977572" _mstvisible="1" style="text-align: left;" %)
1326 Feature: If PID is enabled, device will send the temperature probe ID on:
1327
1328 (% _mstvisible="1" %)
1329 * First Packet after OTAA Join
1330 * Every 24 hours since the first packet.
1331
1332 (% _msthash="315360" _msttexthash="658814" _mstvisible="1" style="text-align: left;" %)
1333 PID is default set to disable (0)
1334
1335 (% _mstvisible="1" style="text-align: left;" %)
1336 (% _msthash="315361" _msttexthash="137488" _mstvisible="3" %)**AT Command:**
1337
1338 (% _mstvisible="1" %)
1339 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1340
1341 (% _mstvisible="1" style="text-align: left;" %)
1342 (% _msthash="315362" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1343
1344 (% _mstvisible="1" %)
1345 * 0xA800  **~-~->** AT+PID=0
1346 * 0xA801     **~-~->** AT+PID=1
1347
1348 (% _mstvisible="1" style="text-align: left;" %)
1349 == (% _msthash="266344" _msttexthash="242879" _mstvisible="3" %)4.4 Set Password(%%) ==
1350
1351 (% _msthash="315363" _msttexthash="1170728" _mstvisible="1" style="text-align: left;" %)
1352 Feature: Set device password, max 9 digits
1353
1354 (% _mstvisible="1" style="text-align: left;" %)
1355 (% _msthash="315364" _msttexthash="295009" _mstvisible="3" %)**AT Command: AT+PWORD**
1356
1357 (% _mstvisible="1" %)
1358 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1359
1360 (% _mstvisible="1" %)
1361 (((
1362 (% _mstvisible="2" style="text-align: left;" %)
1363 (% _msthash="506261" _msttexthash="298038" _mstvisible="4" %)**Downlink Command:**
1364 )))
1365
1366 (% _mstvisible="1" %)
1367 (((
1368 (% _msthash="506262" _msttexthash="974311" _mstvisible="2" style="text-align: left;" %)
1369 No downlink command for this feature.
1370 )))
1371
1372 (% _mstvisible="1" style="text-align: left;" %)
1373 == (% _msthash="306956" _msttexthash="281918" _mstvisible="3" %)4.5 Quit AT Command(%%) ==
1374
1375 (% _msthash="315365" _msttexthash="4616456" _mstvisible="1" style="text-align: left;" %)
1376 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1377
1378 (% _mstvisible="1" style="text-align: left;" %)
1379 (% _msthash="315366" _msttexthash="289120" _mstvisible="3" %)**AT Command: AT+DISAT**
1380
1381 (% _mstvisible="1" %)
1382 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1383
1384 (% _mstvisible="1" style="text-align: left;" %)
1385 (% _msthash="315367" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1386
1387 (% _msthash="315368" _msttexthash="974311" _mstvisible="1" style="text-align: left;" %)
1388 No downlink command for this feature.
1389
1390 (% _mstvisible="1" style="text-align: left;" %)
1391 == (% _msthash="362752" _msttexthash="334919" _mstvisible="3" %)4.6 Set to sleep mode(%%) ==
1392
1393 (% _msthash="315369" _msttexthash="779688" _mstvisible="1" style="text-align: left;" %)
1394 Feature: Set device to sleep mode
1395
1396 (% _mstvisible="1" style="text-align: left;" %)
1397 (% _msthash="315370" _msttexthash="289783" _mstvisible="3" %)**AT Command: AT+SLEEP**
1398
1399 (% _mstvisible="1" %)
1400 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1401
1402 (% _mstvisible="1" %)
1403 (% _msthash="315371" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1404
1405 (% _mstvisible="1" %)
1406 * There is no downlink command to set to Sleep mode.
1407
1408 (% _mstvisible="1" %)
1409 == (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) ==
1410
1411 (% _msthash="315372" _msttexthash="2565524" _mstvisible="1" %)
1412 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1413
1414 (% _mstvisible="1" %)
1415 (% _msthash="315373" _msttexthash="137488" _mstvisible="3" %)**AT Command:**
1416
1417 (% _mstvisible="1" %)
1418 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1419
1420 (% _mstvisible="1" %)
1421 (% _msthash="315374" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1422
1423 (% _msthash="315375" _msttexthash="2898571" _mstvisible="1" %)
1424 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1425
1426 (% _mstvisible="1" %)
1427 == (% _msthash="376779" _msttexthash="348712" _mstvisible="3" %)4.8 Set Time Sync Mode(%%) ==
1428
1429 (% _mstvisible="1" %)
1430 (((
1431 (% _msthash="506263" _msttexthash="11748321" _mstvisible="2" %)
1432 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1433 )))
1434
1435 (% _mstvisible="1" %)
1436 (((
1437 (% _msthash="506264" _msttexthash="6530264" _mstvisible="2" %)
1438 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.
1439 )))
1440
1441 (% _mstvisible="1" %)
1442 (((
1443 (% _mstvisible="2" %)
1444 (% _msthash="506265" _msttexthash="137488" _mstvisible="4" %)**AT Command:**
1445 )))
1446
1447 (% _mstvisible="1" %)
1448 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1449
1450 (% _mstvisible="1" %)
1451 (% _msthash="315376" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1452
1453 (% _msthash="315377" _msttexthash="479648" _mstvisible="1" %)
1454 0x28 01 ~/~/ Same As AT+SYNCMOD=1
1455
1456 (% _msthash="315378" _msttexthash="479076" _mstvisible="1" %)
1457 0x28 00 ~/~/ Same As AT+SYNCMOD=0
1458
1459 (% _mstvisible="1" %)
1460 == (% _msthash="536432" _msttexthash="502528" _mstvisible="3" %)4.9 Set Time Sync Interval(%%) ==
1461
1462 (% _msthash="315379" _msttexthash="3065777" _mstvisible="1" %)
1463 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1464
1465 (% _mstvisible="1" %)
1466 (% _msthash="315380" _msttexthash="137488" _mstvisible="3" %)**AT Command:**
1467
1468 (% _mstvisible="1" %)
1469 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1470
1471 (% _mstvisible="1" %)
1472 (% _msthash="315381" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1473
1474 (% _msthash="315382" _msttexthash="590044" _mstvisible="1" %)
1475 0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
1476
1477 (% _mstvisible="1" %)
1478 == (% _msthash="927901" _msttexthash="882570" _mstvisible="3" %)4.10 Print data entries base on page.(%%) ==
1479
1480 (% _msthash="315383" _msttexthash="3233334" _mstvisible="1" %)
1481 Feature: Print the sector data from start page to stop page (max is 416 pages).
1482
1483 (% _mstvisible="1" %)
1484 (% _msthash="315384" _msttexthash="264953" _mstvisible="3" %)**AT Command: AT+PDTA**
1485
1486 (% _mstvisible="1" %)
1487 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1488
1489 (% _mstvisible="1" %)
1490 (% _msthash="315385" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1491
1492 (% _msthash="315386" _msttexthash="799539" _mstvisible="1" %)
1493 No downlink commands for feature
1494
1495 (% _mstvisible="1" %)
1496 == (% _msthash="788762" _msttexthash="747149" _mstvisible="3" %)4.11 Print last few data entries.(%%) ==
1497
1498 (% _msthash="315387" _msttexthash="1101009" _mstvisible="1" %)
1499 Feature: Print the last few data entries
1500
1501 (% _mstvisible="1" %)
1502 (% _msthash="315388" _msttexthash="288522" _mstvisible="3" %)**AT Command: AT+PLDTA**
1503
1504 (% _mstvisible="1" %)
1505 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1506
1507 (% _mstvisible="1" %)
1508 (% _msthash="315389" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1509
1510 (% _msthash="315390" _msttexthash="799539" _mstvisible="1" %)
1511 No downlink commands for feature
1512
1513 (% _mstvisible="1" %)
1514 == (% _msthash="437814" _msttexthash="408057" _mstvisible="3" %)4.12 Clear Flash Record(%%) ==
1515
1516 (% _msthash="315391" _msttexthash="1609075" _mstvisible="1" %)
1517 Feature: Clear flash storage for data log feature.
1518
1519 (% _mstvisible="1" %)
1520 (% _msthash="315392" _msttexthash="311415" _mstvisible="3" %)**AT Command: AT+CLRDTA**
1521
1522 (% _mstvisible="1" %)
1523 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1524
1525 (% _mstvisible="1" %)
1526 (% _msthash="315393" _msttexthash="388193" _mstvisible="3" %)**Downlink Command: 0xA3**
1527
1528 (% _mstvisible="1" %)
1529 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1530
1531 (% _mstvisible="1" %)
1532 == (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) ==
1533
1534 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1535 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.
1536
1537
1538 (% _mstvisible="1" %)
1539 (% _msthash="315395" _msttexthash="334256" _mstvisible="3" %)**AT Command: AT+PNACKMD**
1540
1541 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1542 The default factory setting is 0
1543
1544 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1545 (% _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**
1546 (% _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
1547
1548 (% _mstvisible="1" %)
1549 (% _msthash="315397" _msttexthash="383981" _mstvisible="3" %)**Downlink Command: 0x34**
1550
1551 (% _mstvisible="1" %)
1552 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1553
1554 (% _mstvisible="1" %)
1555 = (% _msthash="568737" _msttexthash="502827" _mstvisible="3" %)5. Battery & How to replace(%%) =
1556
1557 (% _mstvisible="1" %)
1558 == (% _msthash="265486" _msttexthash="242073" _mstvisible="3" %)5.1 Battery Type(%%) ==
1559
1560 (% _msthash="315398" _msttexthash="33754799" _mstvisible="1" %)
1561 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.
1562
1563 (% _mstvisible="1" %)
1564 (((
1565 (% _mstvisible="2" %)
1566 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1567 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1568 )))
1569
1570 (% _mstvisible="1" %)
1571 (((
1572 (% _mstvisible="2" %)
1573 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1574
1575 )))
1576
1577 (% _mstvisible="1" %)
1578 == (% _msthash="353795" _msttexthash="326703" _mstvisible="3" %)5.2 Replace Battery(%%) ==
1579
1580 (% _msthash="315399" _msttexthash="11289278" _mstvisible="1" %)
1581 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.
1582
1583 (% _mstvisible="1" %)
1584 [[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"]]
1585
1586 (% _mstvisible="1" %)
1587 == (% _msthash="494650" _msttexthash="462241" _mstvisible="3" %)5.3 Battery Life Analyze(%%) ==
1588
1589 (% _mstvisible="1" %)
1590 (((
1591 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1592 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:
1593 [[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]]
1594
1595
1596 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]]
1597
1598
1599 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1600 = (% _msthash="183170" _msttexthash="163566" _mstvisible="3" %)6. FAQ(%%) =
1601
1602 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1603 == 6.1 How to use AT Command? ==
1604
1605 LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to
1606
1607 connect to LHT65 for using AT command, as below.
1608
1609 [[image:image-20220530085651-1.png]]
1610
1611
1612 Connection:
1613
1614 ✓ USB to TTL GND <~-~->GND
1615
1616 ✓ USB to TTL RXD <~-~-> D+
1617
1618 ✓ USB to TTL TXD <~-~-> A11
1619
1620 ✓ USB to TTL 3.3V <~-~-> D-
1621
1622 In PC, User needs to set serial tool(such as **putty**, SecureCRT) baud rate to **9600** to access to
1623
1624 access serial console for LHT65N. The AT commands are disable by default and need to enter
1625
1626 password (default:**123456**) to active it. Timeout to input AT Command is 5 min, after 5-minute,
1627
1628 user need to input password again. User can use AT+DISAT command to disable AT command
1629
1630 before timeout.
1631
1632 Input password and ATZ to activate LHT65N,As shown below:
1633
1634 [[image:image-20220530095701-4.png]]
1635
1636
1637 AT Command List is as below:
1638
1639 AT+<CMD>? : Help on <CMD>
1640
1641 AT+<CMD> : Run <CMD>
1642
1643 AT+<CMD>=<value> : Set the value
1644
1645 AT+<CMD>=? : Get the value
1646
1647 AT+DEBUG:Set more info output
1648
1649 ATZ: Trig a reset of the MCU
1650
1651 AT+FDR: Reset Parameters to Factory Default, Keys Reserve
1652
1653 AT+DEUI: Get or Set the Device EUI
1654
1655 AT+DADDR: Get or Set the Device Address
1656
1657 AT+APPKEY: Get or Set the Application Key
1658
1659 AT+NWKSKEY: Get or Set the Network Session Key
1660
1661 AT+APPSKEY: Get or Set the Application Session Key
1662
1663 AT+APPEUI: Get or Set the Application EUI
1664
1665 AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1666
1667 AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1668
1669 AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)
1670
1671 AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1672
1673 AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1674
1675 AT+RX2FQ: Get or Set the Rx2 window frequency
1676
1677 AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1678
1679 AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1680
1681 AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1682
1683 AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1
1684
1685 in ms
1686
1687 AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2
1688
1689 in ms
1690
1691 AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1692
1693 AT+NWKID: Get or Set the Network ID
1694
1695 AT+FCU: Get or Set the Frame Counter Uplink
1696
1697 AT+FCD: Get or Set the Frame Counter Downlink
1698
1699 AT+CLASS: Get or Set the Device Class
1700
1701 AT+JOIN: Join network
1702
1703 AT+NJS: Get the join status
1704
1705 AT+SENDB: Send hexadecimal data along with the application port
1706
1707 AT+SEND: Send text data along with the application port
1708
1709 AT+RECVB: Print last received data in binary format (with hexadecimal values)
1710
1711 AT+RECV: Print last received data in raw format
1712
1713 AT+VER: Get current image version and Frequency Band
1714
1715 AT+CFM: Get or Set the confirmation mode (0-1)
1716
1717 AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1718
1719 AT+SNR: Get the SNR of the last received packet
1720
1721 AT+RSSI: Get the RSSI of the last received packet
1722
1723 AT+TDC: Get or set the application data transmission interval in ms
1724
1725 AT+PORT: Get or set the application port
1726
1727 AT+DISAT: Disable AT commands
1728
1729 AT+PWORD: Set password, max 9 digits
1730
1731 AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1732
1733 AT+CHE: Get or Set eight channels mode,Only for US915,AU915,CN470
1734
1735 AT+PDTA: Print the sector data from start page to stop page
1736
1737 AT+PLDTA: Print the last few sets of data
1738
1739 AT+CLRDTA: Clear the storage, record position back to 1st
1740
1741 AT+SLEEP: Set sleep mode
1742
1743 AT+EXT: Get or Set external sensor model
1744
1745 AT+BAT: Get the current battery voltage in mV
1746
1747 AT+CFG: Print all configurations
1748
1749 AT+WMOD: Get or Set Work Mode
1750
1751 AT+ARTEMP: Get or set the internal Temperature sensor alarm range
1752
1753 AT+CITEMP: Get or set the internal Temperature sensor collection interval in min
1754
1755 AT+SETCNT:Set the count at present
1756
1757 AT+RJTDC: Get or set the ReJoin data transmission interval in min
1758
1759 AT+RPL: Get or set response level
1760
1761 AT+TIMESTAMP: Get or Set UNIX timestamp in second
1762
1763 AT+LEAPSEC: Get or Set Leap Second
1764
1765 AT+SYNCMOD: Get or Set time synchronization method
1766
1767 AT+SYNCTDC: Get or set time synchronization interval in day
1768
1769 AT+PID: Get or set the PID
1770
1771
1772 )))
1773
1774 (% _mstvisible="1" %)
1775 = (% _msthash="183170" _msttexthash="163566" _mstvisible="3" %)7. Order Info(%%) =
1776
1777 (% _mstvisible="1" %)
1778 (((
1779 (% _msthash="506267" _msttexthash="432432" _mstvisible="2" %)
1780 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
1781 )))
1782
1783 (% _mstvisible="1" %)
1784 (((
1785 (% _msthash="506268" _msttexthash="686946" _mstvisible="2" %)
1786 (% _mstvisible="4" style="color:#4f81bd" %)**XX **(%%): The default frequency band
1787 )))
1788
1789 (% _mstvisible="1" %)
1790 * (% _mstvisible="3" %)
1791 (((
1792 (% _msthash="903327" _msttexthash="393341" _mstvisible="4" %)
1793 (% _mstvisible="6" style="color:#4f81bd" %)** AS923**(%%): LoRaWAN AS923 band
1794 )))
1795 * (% _mstvisible="3" %)
1796 (((
1797 (% _msthash="903328" _msttexthash="394576" _mstvisible="4" %)
1798 (% _mstvisible="6" style="color:#4f81bd" %)** AU915**(%%): LoRaWAN AU915 band
1799 )))
1800 * (% _mstvisible="3" %)
1801 (((
1802 (% _msthash="903329" _msttexthash="393913" _mstvisible="4" %)
1803 (% _mstvisible="6" style="color:#4f81bd" %)** EU433**(%%): LoRaWAN EU433 band
1804 )))
1805 * (% _mstvisible="3" %)
1806 (((
1807 (% _msthash="903330" _msttexthash="399087" _mstvisible="4" %)
1808 (% _mstvisible="6" style="color:#4f81bd" %)** EU868**(%%): LoRaWAN EU868 band
1809 )))
1810 * (% _mstvisible="3" %)
1811 (((
1812 (% _msthash="903331" _msttexthash="395109" _mstvisible="4" %)
1813 (% _mstvisible="6" style="color:#4f81bd" %)** KR920**(%%): LoRaWAN KR920 band
1814 )))
1815 * (% _mstvisible="3" %)
1816 (((
1817 (% _msthash="903332" _msttexthash="400842" _mstvisible="4" %)
1818 (% _mstvisible="6" style="color:#4f81bd" %)** US915**(%%): LoRaWAN US915 band
1819 )))
1820 * (% _mstvisible="3" %)
1821 (((
1822 (% _msthash="903333" _msttexthash="396487" _mstvisible="4" %)
1823 (% _mstvisible="6" style="color:#4f81bd" %)** IN865**(%%): LoRaWAN IN865 band
1824 )))
1825 * (% _mstvisible="3" %)
1826 (((
1827 (% _msthash="903334" _msttexthash="390923" _mstvisible="4" %)
1828 (% _mstvisible="6" style="color:#4f81bd" %)** CN470**(%%): LoRaWAN CN470 band
1829 )))
1830
1831 (% _mstvisible="1" %)
1832 (((
1833 (% _msthash="506269" _msttexthash="443495" _mstvisible="2" %)
1834 (% _mstvisible="4" style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1835 )))
1836
1837 (% _mstvisible="1" %)
1838 * (% _mstvisible="3" %)
1839 (((
1840 (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
1841 (% _mstvisible="6" style="color:#4f81bd" %)**E3**(%%): External Temperature Probe
1842
1843
1844 (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
1845
1846 )))
1847
1848 (% _mstvisible="1" %)
1849 = (% _msthash="233363" _msttexthash="211237" _mstvisible="3" %)8. Packing Info(%%) =
1850
1851 (% _mstvisible="1" %)
1852 (((
1853 (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1854 (% _mstvisible="3" %)**Package Includes**(%%):
1855 )))
1856
1857 (% _mstvisible="1" %)
1858 * (% _mstvisible="3" %)
1859 (((
1860 (% _msthash="903336" _msttexthash="1033149" _mstvisible="4" %)
1861 LHT65N Temperature & Humidity Sensor x 1
1862 )))
1863 * (% _mstvisible="3" %)
1864 (((
1865 (% _msthash="903337" _msttexthash="242567" _mstvisible="4" %)
1866 Program cable x 1
1867 )))
1868 * (% _mstvisible="3" %)
1869 (((
1870 (% _msthash="903338" _msttexthash="544167" _mstvisible="4" %)
1871 Optional external sensor
1872 )))
1873
1874 (% _mstvisible="1" %)
1875 (((
1876 (% _msthash="506271" _msttexthash="403858" _mstvisible="2" %)
1877 (% _mstvisible="3" %)**Dimension and weight**(%%):
1878 )))
1879
1880 (% _mstvisible="1" %)
1881 * (% _mstvisible="3" %)
1882 (((
1883 (% _msthash="903339" _msttexthash="391807" _mstvisible="4" %)
1884 Device Size:  13.5 x 7 x 3 cm
1885 )))
1886 * (% _mstvisible="3" %)
1887 (((
1888 (% _msthash="903340" _msttexthash="285298" _mstvisible="4" %)
1889 Device Weight: 105g
1890 )))
1891 * (% _mstvisible="3" %)
1892 (((
1893 (% _msthash="903341" _msttexthash="562926" _mstvisible="4" %)
1894 Package Size / pcs : 14.5 x 8 x 5 cm
1895 )))
1896 * (% _mstvisible="3" %)
1897 (((
1898 (% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
1899 Weight / pcs : 170g
1900 )))
1901
1902 = 9. Reference =
1903
1904 * [[Datasheet, Photos, Decoder, Firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor]]
1905
1906 = 10. FCC Warning =
1907
1908 (% _mstvisible="1" %)
1909 (((
1910 (% _msthash="506272" _msttexthash="6034353" _mstvisible="2" %)
1911 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1912 )))
1913
1914 (% _mstvisible="1" %)
1915 (((
1916 (% _msthash="506273" _msttexthash="44097638" _mstvisible="2" %)
1917 (1) This device may not cause harmful interference；
1918 )))
1919
1920 (% _mstvisible="1" %)
1921 (((
1922 (% _msthash="506274" _msttexthash="7559773" _mstvisible="2" %)
1923 (2) this device must accept any interference received, including interference that may cause undesired operation.
1924 )))
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