Version 118.6 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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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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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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141 * (% _mstvisible="3" %)
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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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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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299 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:426px" %)
300 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
301 (((
302 (% _mstvisible="6" %)
303 (% _msthash="1817478" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
304 )))|(% _mstvisible="4" style="width:39px" %)(% _mstvisible="5" %)
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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**
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332 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo" _msthash="1817485" _msttexthash="22594" _mstvisible="7"]]
333 )))|(% _mstvisible="4" style="width:100px" %)(% _mstvisible="5" %)
334 (((
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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"]]
346 )))
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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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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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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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381 [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
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383 (% _mstvisible="1" %)
384 === (% _msthash="411411" _msttexthash="383656" _mstvisible="3" %)2.4.2 BAT-Battery Info(%%) ===
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386 (% _msthash="315254" _msttexthash="3122912" _mstvisible="1" %)
387 These two bytes of BAT include the battery state and the actually voltage
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390 [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
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393 [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
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396 Check the battery voltage for LHT65N.
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399 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
400 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
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402 (% _mstvisible="1" %)
403 === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
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405 (% _mstvisible="1" %)
406 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
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409 * Temperature:  0x0ABB/100=27.47℃
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411 (% _mstvisible="1" %)
412 [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
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415 * Temperature:  (0xF5C6-65536)/100=-26.18℃
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417 (% _mstvisible="1" %)
418 === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
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420 (% _mstvisible="1" %)
421 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
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423 (% _mstvisible="1" %)
424 * Humidity:    0x025C/10=60.4%
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426 (% _mstvisible="1" %)
427 === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
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429 (% _msthash="315256" _msttexthash="552240" _mstvisible="1" %)
430 Bytes for External Sensor:
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433 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
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435 (% _mstvisible="1" %)
436 === (% _msthash="221429" _msttexthash="200655" _mstvisible="3" %)2.4.6 Ext value(%%) ===
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438 (% _mstvisible="1" %)
439 ==== (% _msthash="1005901" _msttexthash="877578" _mstvisible="3" %)2.4.6.1 Ext~=1, E3 Temperature Sensor(%%) ====
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441 (% _mstvisible="1" %)
442 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
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444 (% _mstvisible="1" %)
445 * DS18B20 temp=0x0ADD/100=27.81℃
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447 (% _msthash="315257" _msttexthash="1038479" _mstvisible="1" %)
448 The last 2 bytes of data are meaningless
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451 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
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454 * External temperature= (0xF54F-65536)/100=-27.37℃
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456 (% _mstvisible="1" %)
457 (((
458 (% _msthash="506063" _msttexthash="1038479" _mstvisible="2" %)
459 The last 2 bytes of data are meaningless
460 )))
461
462 (% _mstvisible="1" %)
463 (((
464 (% _msthash="506064" _msttexthash="21185632" _mstvisible="2" %)
465 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
466 )))
467
468
469 (% _mstvisible="1" %)
470 ==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
471
472 (% _msthash="315258" _msttexthash="41539368" _mstvisible="1" %)
473 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:
474
475 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:510px" %)
476 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
477 (((
478 (% _mstvisible="6" %)
479 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
480 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
481 (((
482 (% _mstvisible="6" %)
483 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
484 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
485 (((
486 (% _mstvisible="6" %)
487 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
488 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
489 (((
490 (% _mstvisible="6" %)
491 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
492 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
493 (((
494 (% _mstvisible="6" %)
495 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
496 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
497 (((
498 (% _mstvisible="6" %)
499 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
500 )))
501 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
502 (((
503 (% _mstvisible="6" %)
504 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
505 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
506 (((
507 (% _mstvisible="6" %)
508 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
509 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
510 (((
511 (% _mstvisible="6" %)
512 (((
513 (% _mstvisible="7" %)
514 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
515 )))
516
517 (% _mstvisible="6" %)
518 (((
519 (% _mstvisible="7" %)
520 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
521 )))
522 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
523 (((
524 (% _mstvisible="6" %)
525 (((
526 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
527 BAT Status &
528 )))
529
530 (% _mstvisible="6" %)
531 (((
532 (% _mstvisible="7" %)
533 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
534 )))
535 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
536 (((
537 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
538 Status & Ext
539 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
540 (((
541 (% _mstvisible="6" %)
542 (((
543 (% _mstvisible="7" %)
544 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
545 )))
546 )))
547
548 (% _mstvisible="1" %)
549 * (% _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**
550
551 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:469px" %)
552 (% _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]
553 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
554 (((
555 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
556 BAT Status
557
558 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
559 00(b): Ultra Low ( BAT <= 2.50v)
560
561 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
562 01(b): Low  (2.50v <=BAT <= 2.55v)
563
564 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
565 10(b): OK   (2.55v <= BAT <=2.65v)
566
567 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
568 11(b): Good   (BAT >= 2.65v)
569 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
570 (((
571 (% _mstvisible="6" %)
572 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
573
574 (% _mstvisible="6" %)
575
576 )))
577
578 (% _mstvisible="1" %)
579 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
580
581 (% _mstvisible="1" %)
582 [[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
583
584 (% _mstvisible="1" %)
585 * Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
586 * 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.
587 * 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)
588
589 (% _mstvisible="1" %)
590 == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
591
592 (% _msthash="315259" _msttexthash="20933341" _mstvisible="1" %)
593 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:
594
595 (% _mstvisible="1" %)
596 (((
597 (% _msthash="506065" _msttexthash="4753983" _mstvisible="2" %)
598 (% _mstvisible="3" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
599 )))
600
601 (% _mstvisible="1" %)
602 (((
603 (% _msthash="506066" _msttexthash="14696682" _mstvisible="2" %)
604 (% _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.
605 )))
606
607 (% _mstvisible="1" %)
608 (((
609 (% _msthash="506067" _msttexthash="180297" _mstvisible="2" %)
610 Add Datacake:
611 )))
612
613 (% _mstvisible="1" %)
614 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
615
616
617 (% _msthash="315260" _msttexthash="750178" _mstvisible="1" %)
618 Select default key as Access Key:
619
620 (% _mstvisible="1" %)
621 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
622
623 (% _msthash="315261" _msttexthash="2134964" _mstvisible="1" %)
624 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
625
626 (% _mstvisible="1" %)
627 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
628
629 (% _mstvisible="1" %)
630 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
631
632 (% _mstvisible="1" %)
633 == (% _msthash="350454" _msttexthash="323544" _mstvisible="3" %)2.6 Datalog Feature(%%) ==
634
635 (% _msthash="315262" _msttexthash="32283004" _mstvisible="1" %)
636 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.
637
638 (% _mstvisible="1" %)
639 === (% _msthash="886158" _msttexthash="842426" _mstvisible="3" %)2.6.1 Ways to get datalog via LoRaWAN(%%) ===
640
641 (% _msthash="315263" _msttexthash="409604" _mstvisible="1" %)
642 There are two methods:
643
644 (% _mstvisible="1" %)
645 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
646 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.
647
648 (% _mstvisible="1" %)
649 === (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
650
651 (% _msthash="315264" _msttexthash="1182285" _mstvisible="1" %)
652 LHT65N uses Unix TimeStamp format based on
653
654 (% _mstvisible="1" %)
655 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
656
657
658 (% _mstvisible="1" %)
659 (((
660 (% _msthash="506068" _msttexthash="2717234" _mstvisible="2" %)
661 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
662 )))
663
664 (% _mstvisible="1" %)
665 (((
666 (% _msthash="506069" _msttexthash="709813" _mstvisible="2" %)
667 Below is the converter example
668 )))
669
670 (% _mstvisible="1" %)
671 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
672
673 (% _msthash="315265" _msttexthash="15137317" _mstvisible="1" %)
674 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
675
676 (% _mstvisible="1" %)
677 === (% _msthash="359294" _msttexthash="332748" _mstvisible="3" %)2.6.3 Set Device Time(%%) ===
678
679 (% _mstvisible="1" %)
680 (((
681 (% _msthash="506070" _msttexthash="4521946" _mstvisible="2" %)
682 There are two ways to set device’s time:
683 )))
684
685 (% _mstvisible="1" %)
686 (((
687 (% _mstvisible="2" %)
688 (% _msthash="506071" _msttexthash="1498471" _mstvisible="4" %)**1. Through LoRaWAN MAC Command (Default settings)**
689 )))
690
691 (% _mstvisible="1" %)
692 (((
693 (% _msthash="506072" _msttexthash="2126267" _mstvisible="2" %)
694 User need to set SYNCMOD=1 to enable sync time via MAC command.
695 )))
696
697 (% _mstvisible="1" %)
698 (((
699 (% _msthash="506073" _msttexthash="54430324" _mstvisible="2" %)
700 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).
701 )))
702
703 (% _mstvisible="1" %)
704 (((
705 (% _msthash="506074" _msttexthash="92531127" _mstvisible="2" %)
706 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.
707 )))
708
709 (% _mstvisible="1" %)
710 (((
711 (% _mstvisible="2" %)
712
713 )))
714
715 (% _mstvisible="1" %)
716 (((
717 (% _mstvisible="2" %)
718 (% _msthash="506075" _msttexthash="329719" _mstvisible="4" %)**2. Manually Set Time**
719 )))
720
721 (% _mstvisible="1" %)
722 (((
723 (% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
724 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
725 )))
726
727 (% _mstvisible="1" %)
728 === (% _msthash="460759" _msttexthash="430001" _mstvisible="3" %)2.6.4 Poll sensor value(%%) ===
729
730 (% _msthash="315266" _msttexthash="4955821" _mstvisible="1" %)
731 User can poll sensor value based on timestamps from the server. Below is the downlink command.
732
733 (% _mstvisible="1" %)
734 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
735
736 (% _mstvisible="1" %)
737 (((
738 (% _msthash="506077" _msttexthash="14670916" _mstvisible="2" %)
739 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.
740 )))
741
742 (% _mstvisible="1" %)
743 (((
744 (% _mstvisible="2" %)
745 For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(% _mstvisible="3" style="display:none" %)
746 )))
747
748 (% _mstvisible="1" %)
749 (((
750 (% _msthash="506078" _msttexthash="6907459" _mstvisible="2" %)
751 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
752 )))
753
754 (% _mstvisible="1" %)
755 (((
756 (% _msthash="506079" _msttexthash="23531573" _mstvisible="2" %)
757 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
758 )))
759
760
761 (% _mstvisible="1" %)
762 === (% _msthash="650923" _msttexthash="614185" _mstvisible="3" %)2.6.5 Datalog Uplink payload(%%) ===
763
764 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
765 The Datalog poll reply uplink will use below payload format.
766
767 (% _mstvisible="1" %)
768 (((
769 (% _mstvisible="2" %)
770 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
771 )))
772
773 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:510px" %)
774 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
775 (((
776 (% _mstvisible="6" %)
777 (((
778 (% _mstvisible="7" %)
779 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
780 )))
781 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
782 (((
783 (% _mstvisible="6" %)
784 (((
785 (% _mstvisible="7" %)
786 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
787 )))
788 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
789 (((
790 (% _mstvisible="6" %)
791 (((
792 (% _mstvisible="7" %)
793 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
794 )))
795 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
796 (((
797 (% _mstvisible="6" %)
798 (((
799 (% _mstvisible="7" %)
800 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
801 )))
802 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
803 (((
804 (% _mstvisible="6" %)
805 (((
806 (% _mstvisible="7" %)
807 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
808 )))
809 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
810 (((
811 (% _mstvisible="6" %)
812 (((
813 (% _mstvisible="7" %)
814 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
815 )))
816 )))
817 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
818 (((
819 (% _mstvisible="6" %)
820 (((
821 (% _mstvisible="7" %)
822 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
823 )))
824 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
825 (((
826 (% _mstvisible="6" %)
827 (((
828 (% _mstvisible="7" %)
829 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
830 )))
831 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
832 (((
833 (% _mstvisible="6" %)
834 (((
835 (% _mstvisible="7" %)
836 (((
837 (% _mstvisible="8" %)
838 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
839 )))
840 )))
841
842 (% _mstvisible="6" %)
843 (((
844 (% _mstvisible="7" %)
845 (((
846 (% _mstvisible="8" %)
847 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
848 )))
849 )))
850 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
851 (((
852 (% _mstvisible="6" %)
853 (((
854 (% _mstvisible="7" %)
855 (((
856 (% _mstvisible="8" %)
857 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
858 )))
859 )))
860
861 (% _mstvisible="6" %)
862 (((
863 (% _mstvisible="7" %)
864 (((
865 (% _mstvisible="8" %)
866 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
867 )))
868 )))
869 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
870 (((
871 (% _mstvisible="6" %)
872 (((
873 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
874 Poll message flag & Ext
875 )))
876 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
877 (((
878 (% _mstvisible="6" %)
879 (((
880 (% _mstvisible="7" %)
881 (((
882 (% _mstvisible="8" %)
883 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
884 )))
885 )))
886
887 (% _mstvisible="6" %)
888 (((
889 (% _mstvisible="7" %)
890 (((
891 (% _mstvisible="8" %)
892
893 )))
894 )))
895 )))
896
897 (% _mstvisible="1" %)
898 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
899
900 (% _mstvisible="1" %)
901 [[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
902
903 (% _mstvisible="1" %)
904 (((
905 (% _mstvisible="2" %)
906 (((
907 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
908 Poll Message Flag: 1: This message is a poll message reply.
909 )))
910 )))
911
912 (% _mstvisible="1" %)
913 * (% _mstvisible="3" %)
914 (((
915 (% _mstvisible="4" %)
916 (((
917 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
918 Poll Message Flag is set to 1.
919 )))
920 )))
921 * (% _mstvisible="3" %)
922 (((
923 (% _mstvisible="4" %)
924 (((
925 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
926 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
927 )))
928 )))
929
930 (% _mstvisible="1" %)
931 (((
932 (% _mstvisible="2" %)
933 (((
934 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
935 For example, in US915 band, the max payload for different DR is:
936 )))
937 )))
938
939 (% _mstvisible="1" %)
940 (((
941 (% _mstvisible="2" %)
942 (((
943 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
944 a) DR0: max is 11 bytes so one entry of data
945 )))
946 )))
947
948 (% _mstvisible="1" %)
949 (((
950 (% _mstvisible="2" %)
951 (((
952 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
953 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
954 )))
955 )))
956
957 (% _mstvisible="1" %)
958 (((
959 (% _mstvisible="2" %)
960 (((
961 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
962 c) DR2: total payload includes 11 entries of data
963 )))
964 )))
965
966 (% _mstvisible="1" %)
967 (((
968 (% _mstvisible="2" %)
969 (((
970 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
971 d) DR3: total payload includes 22 entries of data.
972 )))
973 )))
974
975 (% _mstvisible="1" %)
976 (((
977 (% _mstvisible="2" %)
978 (((
979 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
980 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
981 )))
982 )))
983
984
985 (% _mstvisible="1" style="text-align: left;" %)
986 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
987
988 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
989 If LHT65N has below data inside Flash:
990
991 (% _mstvisible="1" %)
992 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
993
994 (% _mstvisible="1" %)
995 (((
996 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
997 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
998 )))
999
1000 (% _mstvisible="1" %)
1001 (((
1002 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
1003 Where : Start time: 60065F97 = time 21/1/19 04:27:03
1004 )))
1005
1006 (% _mstvisible="1" %)
1007 (((
1008 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
1009 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
1010 )))
1011
1012 (% _mstvisible="1" %)
1013 (((
1014 (% _mstvisible="2" %)
1015
1016 )))
1017
1018 (% _mstvisible="1" %)
1019 (((
1020 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
1021 LHT65N will uplink this payload.
1022 )))
1023
1024 (% _mstvisible="1" %)
1025 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
1026
1027 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
1028 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
1029
1030 Where the first 11 bytes is for the first entry:
1031
1032 7FFF089801464160065F97
1033
1034 Ext sensor data=0x7FFF/100=327.67
1035
1036 Temp=0x0898/100=22.00
1037
1038 Hum=0x0146/10=32.6
1039
1040 poll message flag & Ext=0x41,means reply data,Ext=1
1041
1042 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
1043
1044
1045 (% _mstvisible="1" style="text-align: left;" %)
1046 == (% _msthash="244504" _msttexthash="177736" _mstvisible="3" %)2.7 Alarm Mode(%%) ==
1047
1048 (% _msthash="315279" _msttexthash="16493308" _mstvisible="1" style="text-align: left;" %)
1049 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.
1050
1051 (% _mstvisible="1" %)
1052 (((
1053 (% _mstvisible="2" style="text-align: left;" %)
1054 (% _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.
1055 )))
1056
1057 (% _mstvisible="1" style="text-align: left;" %)
1058 (% _msthash="315280" _msttexthash="363480" _mstvisible="3" %)**AT COMMAND FOR ALARM MODE:**
1059
1060 (% _mstvisible="1" class="box infomessage" %)
1061 (((
1062 (% _msthash="506086" _msttexthash="2193529" _mstvisible="2" style="text-align: left;" %)
1063 (% _istranslated="1" _mstmutation="1" _mstvisible="4" %)**AT+WMOD=1**(%%): Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1064
1065 (% _msthash="506087" _msttexthash="3671265" _mstvisible="2" style="text-align: left;" %)
1066 (% _istranslated="1" _mstvisible="4" %)**AT+CITEMP=1**(%%): The interval between checking the alarm temperature. (In minutes)
1067
1068 (% _msthash="506088" _msttexthash="3310437" _mstvisible="2" style="text-align: left;" %)
1069 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP**(%%): Gets or sets the alarm range of the internal temperature sensor
1070
1071 (% _mstvisible="2" style="text-align: left;" %)
1072 (% _istranslated="1" _mstmutation="1" %)**AT+ARTEMP=？ **(%%): Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1073
1074 (% _msthash="506089" _msttexthash="3590067" _mstvisible="2" style="text-align: left;" %)
1075 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP=45,105**(%%): Set the internal temperature sensor alarm range from 45 to 105.
1076 )))
1077
1078 (% _msthash="72514" _msttexthash="253149" _mstvisible="1" style="text-align: left;" %)
1079 == (% _istranslated="1" _msthash="168103" _msttexthash="59969" _mstvisible="3" %)2.8 (%%)LED Indicator ==
1080
1081 (% _mstvisible="1" %)
1082 (((
1083 (% _msthash="197769" _msttexthash="2924142" style="text-align: left;" %)
1084 The LHT65 has a triple color LED which for easy showing different stage .
1085
1086 (% _msthash="289211" _msttexthash="3402659" style="text-align: left;" %)
1087 While user press ACT button, the LED will work as per LED status with ACT button.
1088 )))
1089
1090 (% _mstvisible="1" %)
1091 (((
1092 (% _msthash="506092" _msttexthash="521573" _mstvisible="2" style="text-align: left;" %)
1093 In a normal working state:
1094 )))
1095
1096 (% _mstvisible="1" %)
1097 * (% _mstvisible="3" %)
1098 (((
1099 (% _msthash="903005" _msttexthash="1647204" _mstvisible="4" %)
1100 For each uplink, the BLUE LED or RED LED will blink (% _msthash="903005" _msttexthash="46254" _mstvisible="3" %)once(%%).(% style="display:none" %)
1101
1102 (% _msthash="197771" _msttexthash="1202526" %)
1103 (% _msthash="903005" _msttexthash="1647204" _mstvisible="3" %)BLUE LED when external sensor is connected
1104 )))
1105 * (% _mstvisible="3" %)
1106 (((
1107 (% _msthash="903007" _msttexthash="1334749" _mstvisible="4" %)
1108 RED LED when external sensor is not connected
1109 )))
1110 * (% _mstvisible="3" %)
1111 (((
1112 (% _msthash="903008" _msttexthash="1875640" _mstvisible="4" %)
1113 For each success downlink, the PURPLE LED will blink once
1114 )))
1115
1116 (% _mstvisible="1" %)
1117 ----
1118
1119 (% _mstvisible="1" style="text-align: left;" %)
1120 == (% _msthash="112034" _msttexthash="277511" _mstvisible="3" %)2.9 installation(%%) ==
1121
1122 (% _mstvisible="1" %)
1123 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1124
1125 (% _msthash="604150" _msttexthash="563212" _mstvisible="1" style="text-align: left;" %)
1126 = (% _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(%%) =
1127
1128 (% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1129 == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(%%) E3 Temperature Probe ==
1130
1131 (% _mstvisible="1" %)
1132 [[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"]]
1133
1134
1135 (% _msthash="315354" _msttexthash="1270971" _mstvisible="1" style="text-align: left;" %)
1136 Temperature sensor with 2 meters cable long
1137
1138 (% _mstvisible="1" %)
1139 * Resolution: 0.0625 °C
1140 * ±0.5°C accuracy from -10°C to +85°C
1141 * ±2°C accuracy from -55°C to +125°C
1142 * Operating Range: -40 ~~ 125 °C
1143 * -55°C to 125°C
1144 * Working voltage 2.35v ~~ 5v
1145
1146 (% _mstvisible="1" style="text-align: left;" %)
1147 = (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) =
1148
1149 (% _mstvisible="1" %)
1150 (((
1151 (% _msthash="506246" _msttexthash="2005926" _mstvisible="2" style="text-align: left;" %)
1152 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1153 )))
1154
1155 (% _mstvisible="1" %)
1156 * (% _mstvisible="3" %)
1157 (((
1158 (% _msthash="903318" _msttexthash="635544" _mstvisible="4" %)
1159 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1160 )))
1161 * (% _mstvisible="3" %)
1162 (((
1163 (% _msthash="903319" _msttexthash="2004301" _mstvisible="4" %)
1164 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1165 )))
1166
1167 (% _mstvisible="1" %)
1168 (((
1169 (% _mstvisible="2" style="text-align: left;" %)
1170
1171 )))
1172
1173 (% _mstvisible="1" %)
1174 (((
1175 (% _msthash="506248" _msttexthash="2144051" _mstvisible="2" style="text-align: left;" %)
1176 There are two kinds of commands to configure LHT65N, they are:
1177 )))
1178
1179 (% _mstvisible="1" %)
1180 (((
1181 (% _mstvisible="2" style="text-align: left;" %)
1182 (% _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" %).
1183 )))
1184
1185 (% _mstvisible="1" %)
1186 (((
1187 (% _msthash="506250" _msttexthash="774527" _mstvisible="2" style="text-align: left;" %)
1188 These commands are to configure:
1189 )))
1190
1191 (% _mstvisible="1" %)
1192 * (% _mstvisible="3" %)
1193 (((
1194 (% _msthash="903320" _msttexthash="1503580" _mstvisible="4" %)
1195 General system settings like: uplink interval.
1196 )))
1197 * (% _mstvisible="3" %)
1198 (((
1199 (% _msthash="903321" _msttexthash="1244334" _mstvisible="4" %)
1200 LoRaWAN protocol & radio-related commands.
1201 )))
1202
1203 (% _mstvisible="1" %)
1204 (((
1205 (% _msthash="506251" _msttexthash="8343023" _mstvisible="2" style="text-align: left;" %)
1206 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]]
1207 )))
1208
1209 (% _mstvisible="1" %)
1210 (((
1211 (% _mstvisible="2" style="text-align: left;" %)
1212
1213 )))
1214
1215 (% _mstvisible="1" %)
1216 (((
1217 (% _mstvisible="2" style="text-align: left;" %)
1218 (% _mstvisible="3" style="color:#4f81bd" %)* **Commands special design for LHT65N**
1219 )))
1220
1221 (% _mstvisible="1" %)
1222 (((
1223 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1224 These commands are only valid for LHT65N, as below:
1225
1226 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1227
1228 )))
1229
1230 (% _mstvisible="1" style="text-align: left;" %)
1231 == (% _msthash="708253" _msttexthash="668772" _mstvisible="3" %)4.1 Set Transmit Interval Time(%%) ==
1232
1233 (% _msthash="315355" _msttexthash="1659268" _mstvisible="1" style="text-align: left;" %)
1234 Feature: Change LoRaWAN End Node Transmit Interval.
1235
1236 (% _mstvisible="1" style="text-align: left;" %)
1237 (% _msthash="315356" _msttexthash="241696" _mstvisible="3" %)**AT Command: AT+TDC**
1238
1239 (% _mstvisible="1" %)
1240 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1241
1242 (% _mstvisible="1" %)
1243 (((
1244 (% _mstvisible="2" style="text-align: left;" %)
1245 (% _msthash="506255" _msttexthash="381992" _mstvisible="4" %)**Downlink Command: 0x01**
1246 )))
1247
1248 (% _mstvisible="1" %)
1249 (((
1250 (% _msthash="506256" _msttexthash="1996592" _mstvisible="2" style="text-align: left;" %)
1251 Format: Command Code (0x01) followed by 3 bytes time value.
1252 )))
1253
1254 (% _mstvisible="1" %)
1255 (((
1256 (% _msthash="506257" _msttexthash="12934649" _mstvisible="2" style="text-align: left;" %)
1257 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1258 )))
1259
1260 (% _mstvisible="1" %)
1261 * (% _mstvisible="3" %)
1262 (((
1263 (% _msthash="903322" _msttexthash="3250546" _mstvisible="4" %)
1264 (% _mstvisible="5" %)**Example 1**(%%): Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1265 )))
1266 * (% _mstvisible="3" %)
1267 (((
1268 (% _msthash="903323" _msttexthash="3253315" _mstvisible="4" %)
1269 (% _mstvisible="5" %)**Example 2**(%%): Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1270 )))
1271
1272 (% _mstvisible="1" style="text-align: left;" %)
1273 == (% _msthash="614770" _msttexthash="578240" _mstvisible="3" %)4.2 Set External Sensor Mode(%%) ==
1274
1275 (% _msthash="315357" _msttexthash="975117" _mstvisible="1" style="text-align: left;" %)
1276 Feature: Change External Sensor Mode.
1277
1278 (% _mstvisible="1" style="text-align: left;" %)
1279 (% _msthash="315358" _msttexthash="248118" _mstvisible="3" %)**AT Command: AT+EXT**
1280
1281 (% _mstvisible="1" %)
1282 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1283
1284 (% _mstvisible="1" %)
1285 (((
1286 (% _mstvisible="2" style="text-align: left;" %)
1287 (% _msthash="506258" _msttexthash="387855" _mstvisible="4" %)**Downlink Command: 0xA2**
1288 )))
1289
1290 (% _mstvisible="1" %)
1291 (((
1292 (% _msthash="506259" _msttexthash="395629" _mstvisible="2" style="text-align: left;" %)
1293 Total bytes: 2 ~~ 5 bytes
1294 )))
1295
1296 (% _mstvisible="1" %)
1297 (((
1298 (% _mstvisible="2" %)
1299 (% _msthash="506260" _msttexthash="104767" _mstvisible="4" %)**Example:**
1300 )))
1301
1302 (% _mstvisible="1" %)
1303 * (% _mstvisible="3" %)
1304 (((
1305 (% _msthash="903324" _msttexthash="934973" _mstvisible="4" %)
1306 0xA201: Set external sensor type to E1
1307 )))
1308 * (% _mstvisible="3" %)
1309 (((
1310 (% _msthash="903325" _msttexthash="354770" _mstvisible="4" %)
1311 0xA209: Same as AT+EXT=9
1312 )))
1313 * (% _mstvisible="3" %)
1314 (((
1315 (% _msthash="903326" _msttexthash="639067" _mstvisible="4" %)
1316 0xA20702003c,Same as AT+SETCNT=60
1317 )))
1318
1319 (% _mstvisible="1" style="text-align: left;" %)
1320 == (% _msthash="1562483" _msttexthash="1445717" _mstvisible="3" %)4.3 Enable/Disable uplink Temperature probe ID(%%) ==
1321
1322 (% _msthash="315359" _msttexthash="2977572" _mstvisible="1" style="text-align: left;" %)
1323 Feature: If PID is enabled, device will send the temperature probe ID on:
1324
1325 (% _mstvisible="1" %)
1326 * First Packet after OTAA Join
1327 * Every 24 hours since the first packet.
1328
1329 (% _msthash="315360" _msttexthash="658814" _mstvisible="1" style="text-align: left;" %)
1330 PID is default set to disable (0)
1331
1332 (% _mstvisible="1" style="text-align: left;" %)
1333 (% _msthash="315361" _msttexthash="137488" _mstvisible="3" %)**AT Command:**
1334
1335 (% _mstvisible="1" %)
1336 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1337
1338 (% _mstvisible="1" style="text-align: left;" %)
1339 (% _msthash="315362" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1340
1341 (% _mstvisible="1" %)
1342 * 0xA800  **~-~->** AT+PID=0
1343 * 0xA801     **~-~->** AT+PID=1
1344
1345 (% _mstvisible="1" style="text-align: left;" %)
1346 == (% _msthash="266344" _msttexthash="242879" _mstvisible="3" %)4.4 Set Password(%%) ==
1347
1348 (% _msthash="315363" _msttexthash="1170728" _mstvisible="1" style="text-align: left;" %)
1349 Feature: Set device password, max 9 digits
1350
1351 (% _mstvisible="1" style="text-align: left;" %)
1352 (% _msthash="315364" _msttexthash="295009" _mstvisible="3" %)**AT Command: AT+PWORD**
1353
1354 (% _mstvisible="1" %)
1355 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1356
1357 (% _mstvisible="1" %)
1358 (((
1359 (% _mstvisible="2" style="text-align: left;" %)
1360 (% _msthash="506261" _msttexthash="298038" _mstvisible="4" %)**Downlink Command:**
1361 )))
1362
1363 (% _mstvisible="1" %)
1364 (((
1365 (% _msthash="506262" _msttexthash="974311" _mstvisible="2" style="text-align: left;" %)
1366 No downlink command for this feature.
1367 )))
1368
1369 (% _mstvisible="1" style="text-align: left;" %)
1370 == (% _msthash="306956" _msttexthash="281918" _mstvisible="3" %)4.5 Quit AT Command(%%) ==
1371
1372 (% _msthash="315365" _msttexthash="4616456" _mstvisible="1" style="text-align: left;" %)
1373 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1374
1375 (% _mstvisible="1" style="text-align: left;" %)
1376 (% _msthash="315366" _msttexthash="289120" _mstvisible="3" %)**AT Command: AT+DISAT**
1377
1378 (% _mstvisible="1" %)
1379 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1380
1381 (% _mstvisible="1" style="text-align: left;" %)
1382 (% _msthash="315367" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1383
1384 (% _msthash="315368" _msttexthash="974311" _mstvisible="1" style="text-align: left;" %)
1385 No downlink command for this feature.
1386
1387 (% _mstvisible="1" style="text-align: left;" %)
1388 == (% _msthash="362752" _msttexthash="334919" _mstvisible="3" %)4.6 Set to sleep mode(%%) ==
1389
1390 (% _msthash="315369" _msttexthash="779688" _mstvisible="1" style="text-align: left;" %)
1391 Feature: Set device to sleep mode
1392
1393 (% _mstvisible="1" style="text-align: left;" %)
1394 (% _msthash="315370" _msttexthash="289783" _mstvisible="3" %)**AT Command: AT+SLEEP**
1395
1396 (% _mstvisible="1" %)
1397 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1398
1399 (% _mstvisible="1" %)
1400 (% _msthash="315371" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1401
1402 (% _mstvisible="1" %)
1403 * There is no downlink command to set to Sleep mode.
1404
1405 (% _mstvisible="1" %)
1406 == (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) ==
1407
1408 (% _msthash="315372" _msttexthash="2565524" _mstvisible="1" %)
1409 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1410
1411 (% _mstvisible="1" %)
1412 (% _msthash="315373" _msttexthash="137488" _mstvisible="3" %)**AT Command:**
1413
1414 (% _mstvisible="1" %)
1415 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1416
1417 (% _mstvisible="1" %)
1418 (% _msthash="315374" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1419
1420 (% _msthash="315375" _msttexthash="2898571" _mstvisible="1" %)
1421 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1422
1423 (% _mstvisible="1" %)
1424 == (% _msthash="376779" _msttexthash="348712" _mstvisible="3" %)4.8 Set Time Sync Mode(%%) ==
1425
1426 (% _mstvisible="1" %)
1427 (((
1428 (% _msthash="506263" _msttexthash="11748321" _mstvisible="2" %)
1429 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1430 )))
1431
1432 (% _mstvisible="1" %)
1433 (((
1434 (% _msthash="506264" _msttexthash="6530264" _mstvisible="2" %)
1435 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.
1436 )))
1437
1438 (% _mstvisible="1" %)
1439 (((
1440 (% _mstvisible="2" %)
1441 (% _msthash="506265" _msttexthash="137488" _mstvisible="4" %)**AT Command:**
1442 )))
1443
1444 (% _mstvisible="1" %)
1445 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1446
1447 (% _mstvisible="1" %)
1448 (% _msthash="315376" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1449
1450 (% _msthash="315377" _msttexthash="479648" _mstvisible="1" %)
1451 0x28 01 ~/~/ Same As AT+SYNCMOD=1
1452
1453 (% _msthash="315378" _msttexthash="479076" _mstvisible="1" %)
1454 0x28 00 ~/~/ Same As AT+SYNCMOD=0
1455
1456 (% _mstvisible="1" %)
1457 == (% _msthash="536432" _msttexthash="502528" _mstvisible="3" %)4.9 Set Time Sync Interval(%%) ==
1458
1459 (% _msthash="315379" _msttexthash="3065777" _mstvisible="1" %)
1460 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1461
1462 (% _mstvisible="1" %)
1463 (% _msthash="315380" _msttexthash="137488" _mstvisible="3" %)**AT Command:**
1464
1465 (% _mstvisible="1" %)
1466 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1467
1468 (% _mstvisible="1" %)
1469 (% _msthash="315381" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1470
1471 (% _msthash="315382" _msttexthash="590044" _mstvisible="1" %)
1472 0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
1473
1474 (% _mstvisible="1" %)
1475 == (% _msthash="927901" _msttexthash="882570" _mstvisible="3" %)4.10 Print data entries base on page.(%%) ==
1476
1477 (% _msthash="315383" _msttexthash="3233334" _mstvisible="1" %)
1478 Feature: Print the sector data from start page to stop page (max is 416 pages).
1479
1480 (% _mstvisible="1" %)
1481 (% _msthash="315384" _msttexthash="264953" _mstvisible="3" %)**AT Command: AT+PDTA**
1482
1483 (% _mstvisible="1" %)
1484 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1485
1486 (% _mstvisible="1" %)
1487 (% _msthash="315385" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1488
1489 (% _msthash="315386" _msttexthash="799539" _mstvisible="1" %)
1490 No downlink commands for feature
1491
1492 (% _mstvisible="1" %)
1493 == (% _msthash="788762" _msttexthash="747149" _mstvisible="3" %)4.11 Print last few data entries.(%%) ==
1494
1495 (% _msthash="315387" _msttexthash="1101009" _mstvisible="1" %)
1496 Feature: Print the last few data entries
1497
1498 (% _mstvisible="1" %)
1499 (% _msthash="315388" _msttexthash="288522" _mstvisible="3" %)**AT Command: AT+PLDTA**
1500
1501 (% _mstvisible="1" %)
1502 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1503
1504 (% _mstvisible="1" %)
1505 (% _msthash="315389" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1506
1507 (% _msthash="315390" _msttexthash="799539" _mstvisible="1" %)
1508 No downlink commands for feature
1509
1510 (% _mstvisible="1" %)
1511 == (% _msthash="437814" _msttexthash="408057" _mstvisible="3" %)4.12 Clear Flash Record(%%) ==
1512
1513 (% _msthash="315391" _msttexthash="1609075" _mstvisible="1" %)
1514 Feature: Clear flash storage for data log feature.
1515
1516 (% _mstvisible="1" %)
1517 (% _msthash="315392" _msttexthash="311415" _mstvisible="3" %)**AT Command: AT+CLRDTA**
1518
1519 (% _mstvisible="1" %)
1520 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1521
1522 (% _mstvisible="1" %)
1523 (% _msthash="315393" _msttexthash="388193" _mstvisible="3" %)**Downlink Command: 0xA3**
1524
1525 (% _mstvisible="1" %)
1526 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1527
1528 (% _mstvisible="1" %)
1529 == (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) ==
1530
1531 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1532 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.
1533
1534
1535 (% _mstvisible="1" %)
1536 (% _msthash="315395" _msttexthash="334256" _mstvisible="3" %)**AT Command: AT+PNACKMD**
1537
1538 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1539 The default factory setting is 0
1540
1541 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1542 (% _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**
1543 (% _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
1544
1545 (% _mstvisible="1" %)
1546 (% _msthash="315397" _msttexthash="383981" _mstvisible="3" %)**Downlink Command: 0x34**
1547
1548 (% _mstvisible="1" %)
1549 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1550
1551 (% _mstvisible="1" %)
1552 = (% _msthash="568737" _msttexthash="502827" _mstvisible="3" %)5. Battery & How to replace(%%) =
1553
1554 (% _mstvisible="1" %)
1555 == (% _msthash="265486" _msttexthash="242073" _mstvisible="3" %)5.1 Battery Type(%%) ==
1556
1557 (% _msthash="315398" _msttexthash="33754799" _mstvisible="1" %)
1558 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.
1559
1560 (% _mstvisible="1" %)
1561 (((
1562 (% _mstvisible="2" %)
1563 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1564 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1565 )))
1566
1567 (% _mstvisible="1" %)
1568 (((
1569 (% _mstvisible="2" %)
1570 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1571
1572 )))
1573
1574 (% _mstvisible="1" %)
1575 == (% _msthash="353795" _msttexthash="326703" _mstvisible="3" %)5.2 Replace Battery(%%) ==
1576
1577 (% _msthash="315399" _msttexthash="11289278" _mstvisible="1" %)
1578 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.
1579
1580 (% _mstvisible="1" %)
1581 [[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"]]
1582
1583 (% _mstvisible="1" %)
1584 == (% _msthash="494650" _msttexthash="462241" _mstvisible="3" %)5.3 Battery Life Analyze(%%) ==
1585
1586 (% _mstvisible="1" %)
1587 (((
1588 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1589 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:
1590 [[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]]
1591
1592
1593 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]]
1594
1595
1596 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1597 = (% _msthash="183170" _msttexthash="163566" _mstvisible="3" %)6. FAQ(%%) =
1598
1599 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1600 == 6.1 How to use AT Command? ==
1601
1602 LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to
1603
1604 connect to LHT65 for using AT command, as below.
1605
1606 [[image:image-20220530085651-1.png]]
1607
1608
1609 Connection:
1610
1611 ✓ USB to TTL GND <~-~->GND
1612
1613 ✓ USB to TTL RXD <~-~-> D+
1614
1615 ✓ USB to TTL TXD <~-~-> A11
1616
1617 ✓ USB to TTL 3.3V <~-~-> D-
1618
1619 In PC, User needs to set serial tool(such as **putty**, SecureCRT) baud rate to **9600** to access to
1620
1621 access serial console for LHT65N. The AT commands are disable by default and need to enter
1622
1623 password (default:**123456**) to active it. Timeout to input AT Command is 5 min, after 5-minute,
1624
1625 user need to input password again. User can use AT+DISAT command to disable AT command
1626
1627 before timeout.
1628
1629 Input password and ATZ to activate LHT65N,As shown below:
1630
1631 [[image:image-20220530095701-4.png]]
1632
1633
1634 AT Command List is as below:
1635
1636 AT+<CMD>? : Help on <CMD>
1637
1638 AT+<CMD> : Run <CMD>
1639
1640 AT+<CMD>=<value> : Set the value
1641
1642 AT+<CMD>=? : Get the value
1643
1644 AT+DEBUG:Set more info output
1645
1646 ATZ: Trig a reset of the MCU
1647
1648 AT+FDR: Reset Parameters to Factory Default, Keys Reserve
1649
1650 AT+DEUI: Get or Set the Device EUI
1651
1652 AT+DADDR: Get or Set the Device Address
1653
1654 AT+APPKEY: Get or Set the Application Key
1655
1656 AT+NWKSKEY: Get or Set the Network Session Key
1657
1658 AT+APPSKEY: Get or Set the Application Session Key
1659
1660 AT+APPEUI: Get or Set the Application EUI
1661
1662 AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1663
1664 AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1665
1666 AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)
1667
1668 AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1669
1670 AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1671
1672 AT+RX2FQ: Get or Set the Rx2 window frequency
1673
1674 AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1675
1676 AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1677
1678 AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1679
1680 AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1
1681
1682 in ms
1683
1684 AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2
1685
1686 in ms
1687
1688 AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1689
1690 AT+NWKID: Get or Set the Network ID
1691
1692 AT+FCU: Get or Set the Frame Counter Uplink
1693
1694 AT+FCD: Get or Set the Frame Counter Downlink
1695
1696 AT+CLASS: Get or Set the Device Class
1697
1698 AT+JOIN: Join network
1699
1700 AT+NJS: Get the join status
1701
1702 AT+SENDB: Send hexadecimal data along with the application port
1703
1704 AT+SEND: Send text data along with the application port
1705
1706 AT+RECVB: Print last received data in binary format (with hexadecimal values)
1707
1708 AT+RECV: Print last received data in raw format
1709
1710 AT+VER: Get current image version and Frequency Band
1711
1712 AT+CFM: Get or Set the confirmation mode (0-1)
1713
1714 AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1715
1716 AT+SNR: Get the SNR of the last received packet
1717
1718 AT+RSSI: Get the RSSI of the last received packet
1719
1720 AT+TDC: Get or set the application data transmission interval in ms
1721
1722 AT+PORT: Get or set the application port
1723
1724 AT+DISAT: Disable AT commands
1725
1726 AT+PWORD: Set password, max 9 digits
1727
1728 AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1729
1730 AT+CHE: Get or Set eight channels mode,Only for US915,AU915,CN470
1731
1732 AT+PDTA: Print the sector data from start page to stop page
1733
1734 AT+PLDTA: Print the last few sets of data
1735
1736 AT+CLRDTA: Clear the storage, record position back to 1st
1737
1738 AT+SLEEP: Set sleep mode
1739
1740 AT+EXT: Get or Set external sensor model
1741
1742 AT+BAT: Get the current battery voltage in mV
1743
1744 AT+CFG: Print all configurations
1745
1746 AT+WMOD: Get or Set Work Mode
1747
1748 AT+ARTEMP: Get or set the internal Temperature sensor alarm range
1749
1750 AT+CITEMP: Get or set the internal Temperature sensor collection interval in min
1751
1752 AT+SETCNT:Set the count at present
1753
1754 AT+RJTDC: Get or set the ReJoin data transmission interval in min
1755
1756 AT+RPL: Get or set response level
1757
1758 AT+TIMESTAMP: Get or Set UNIX timestamp in second
1759
1760 AT+LEAPSEC: Get or Set Leap Second
1761
1762 AT+SYNCMOD: Get or Set time synchronization method
1763
1764 AT+SYNCTDC: Get or set time synchronization interval in day
1765
1766 AT+PID: Get or set the PID
1767
1768
1769 )))
1770
1771 (% _mstvisible="1" %)
1772 = (% _msthash="183170" _msttexthash="163566" _mstvisible="3" %)7. Order Info(%%) =
1773
1774 (% _mstvisible="1" %)
1775 (((
1776 (% _msthash="506267" _msttexthash="432432" _mstvisible="2" %)
1777 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
1778 )))
1779
1780 (% _mstvisible="1" %)
1781 (((
1782 (% _msthash="506268" _msttexthash="686946" _mstvisible="2" %)
1783 (% _mstvisible="4" style="color:#4f81bd" %)**XX **(%%): The default frequency band
1784 )))
1785
1786 (% _mstvisible="1" %)
1787 * (% _mstvisible="3" %)
1788 (((
1789 (% _msthash="903327" _msttexthash="393341" _mstvisible="4" %)
1790 (% _mstvisible="6" style="color:#4f81bd" %)** AS923**(%%): LoRaWAN AS923 band
1791 )))
1792 * (% _mstvisible="3" %)
1793 (((
1794 (% _msthash="903328" _msttexthash="394576" _mstvisible="4" %)
1795 (% _mstvisible="6" style="color:#4f81bd" %)** AU915**(%%): LoRaWAN AU915 band
1796 )))
1797 * (% _mstvisible="3" %)
1798 (((
1799 (% _msthash="903329" _msttexthash="393913" _mstvisible="4" %)
1800 (% _mstvisible="6" style="color:#4f81bd" %)** EU433**(%%): LoRaWAN EU433 band
1801 )))
1802 * (% _mstvisible="3" %)
1803 (((
1804 (% _msthash="903330" _msttexthash="399087" _mstvisible="4" %)
1805 (% _mstvisible="6" style="color:#4f81bd" %)** EU868**(%%): LoRaWAN EU868 band
1806 )))
1807 * (% _mstvisible="3" %)
1808 (((
1809 (% _msthash="903331" _msttexthash="395109" _mstvisible="4" %)
1810 (% _mstvisible="6" style="color:#4f81bd" %)** KR920**(%%): LoRaWAN KR920 band
1811 )))
1812 * (% _mstvisible="3" %)
1813 (((
1814 (% _msthash="903332" _msttexthash="400842" _mstvisible="4" %)
1815 (% _mstvisible="6" style="color:#4f81bd" %)** US915**(%%): LoRaWAN US915 band
1816 )))
1817 * (% _mstvisible="3" %)
1818 (((
1819 (% _msthash="903333" _msttexthash="396487" _mstvisible="4" %)
1820 (% _mstvisible="6" style="color:#4f81bd" %)** IN865**(%%): LoRaWAN IN865 band
1821 )))
1822 * (% _mstvisible="3" %)
1823 (((
1824 (% _msthash="903334" _msttexthash="390923" _mstvisible="4" %)
1825 (% _mstvisible="6" style="color:#4f81bd" %)** CN470**(%%): LoRaWAN CN470 band
1826 )))
1827
1828 (% _mstvisible="1" %)
1829 (((
1830 (% _msthash="506269" _msttexthash="443495" _mstvisible="2" %)
1831 (% _mstvisible="4" style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1832 )))
1833
1834 (% _mstvisible="1" %)
1835 * (% _mstvisible="3" %)
1836 (((
1837 (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
1838 (% _mstvisible="6" style="color:#4f81bd" %)**E3**(%%): External Temperature Probe
1839
1840
1841 (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
1842
1843 )))
1844
1845 (% _mstvisible="1" %)
1846 = (% _msthash="233363" _msttexthash="211237" _mstvisible="3" %)8. Packing Info(%%) =
1847
1848 (% _mstvisible="1" %)
1849 (((
1850 (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1851 (% _mstvisible="3" %)**Package Includes**(%%):
1852 )))
1853
1854 (% _mstvisible="1" %)
1855 * (% _mstvisible="3" %)
1856 (((
1857 (% _msthash="903336" _msttexthash="1033149" _mstvisible="4" %)
1858 LHT65N Temperature & Humidity Sensor x 1
1859 )))
1860 * (% _mstvisible="3" %)
1861 (((
1862 (% _msthash="903337" _msttexthash="242567" _mstvisible="4" %)
1863 Program cable x 1
1864 )))
1865 * (% _mstvisible="3" %)
1866 (((
1867 (% _msthash="903338" _msttexthash="544167" _mstvisible="4" %)
1868 Optional external sensor
1869 )))
1870
1871 (% _mstvisible="1" %)
1872 (((
1873 (% _msthash="506271" _msttexthash="403858" _mstvisible="2" %)
1874 (% _mstvisible="3" %)**Dimension and weight**(%%):
1875 )))
1876
1877 (% _mstvisible="1" %)
1878 * (% _mstvisible="3" %)
1879 (((
1880 (% _msthash="903339" _msttexthash="391807" _mstvisible="4" %)
1881 Device Size:  13.5 x 7 x 3 cm
1882 )))
1883 * (% _mstvisible="3" %)
1884 (((
1885 (% _msthash="903340" _msttexthash="285298" _mstvisible="4" %)
1886 Device Weight: 105g
1887 )))
1888 * (% _mstvisible="3" %)
1889 (((
1890 (% _msthash="903341" _msttexthash="562926" _mstvisible="4" %)
1891 Package Size / pcs : 14.5 x 8 x 5 cm
1892 )))
1893 * (% _mstvisible="3" %)
1894 (((
1895 (% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
1896 Weight / pcs : 170g
1897 )))
1898
1899 = 9. Reference =
1900
1901 * [[Datasheet, Photos, Decoder, Firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor]]
1902
1903 = 10. FCC Warning =
1904
1905 (% _mstvisible="1" %)
1906 (((
1907 (% _msthash="506272" _msttexthash="6034353" _mstvisible="2" %)
1908 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1909 )))
1910
1911 (% _mstvisible="1" %)
1912 (((
1913 (% _msthash="506273" _msttexthash="44097638" _mstvisible="2" %)
1914 (1) This device may not cause harmful interference；
1915 )))
1916
1917 (% _mstvisible="1" %)
1918 (((
1919 (% _msthash="506274" _msttexthash="7559773" _mstvisible="2" %)
1920 (2) this device must accept any interference received, including interference that may cause undesired operation.
1921 )))

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