Version 118.16 by Xiaoling on 2022/06/09 18:13
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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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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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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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267 Note: LHT65N use same payload as LHT65.
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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)**
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**
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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334 (((
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338 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
339 )))
340 )))|(% _mstvisible="4" style="width:77px" %)(% _mstvisible="5" %)
341 (((
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345 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2224743" _msttexthash="105872" _mstvisible="8"]]
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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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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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387 (% _mstvisible="1" %)
388 === (% _msthash="411411" _msttexthash="383656" _mstvisible="3" %)2.4.2 BAT-Battery Info(%%) ===
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390 (% _msthash="315254" _msttexthash="3122912" _mstvisible="1" %)
391 These two bytes of BAT include the battery state and the actually voltage
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394 [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
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397 [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
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400 Check the battery voltage for LHT65N.
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403 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
404 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
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409 (% _mstvisible="1" %)
410 === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
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413 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
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416 * Temperature:  0x0ABB/100=27.47℃
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418 (% _mstvisible="1" %)
419 [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
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422 * Temperature:  (0xF5C6-65536)/100=-26.18℃
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427 (% _mstvisible="1" %)
428 === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
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430 (% _mstvisible="1" %)
431 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
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434 * Humidity:    0x025C/10=60.4%
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438 (% _mstvisible="1" %)
439 === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
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441 (% _msthash="315256" _msttexthash="552240" _mstvisible="1" %)
442 Bytes for External Sensor:
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444 (% _mstvisible="1" %)
445 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
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448 (% _mstvisible="1" %)
449 === (% _msthash="221429" _msttexthash="200655" _mstvisible="3" %)2.4.6 Ext value(%%) ===
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451 (% _mstvisible="1" %)
452 ==== (% _msthash="1005901" _msttexthash="877578" _mstvisible="3" %)2.4.6.1 Ext~=1, E3 Temperature Sensor(%%) ====
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454 (% _mstvisible="1" %)
455 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
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459 * DS18B20 temp=0x0ADD/100=27.81℃
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461 (% _msthash="315257" _msttexthash="1038479" _mstvisible="1" %)
462 The last 2 bytes of data are meaningless
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465 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
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469 * External temperature= (0xF54F-65536)/100=-27.37℃
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471 (% _mstvisible="1" %)
472 (((
473 (% _msthash="506063" _msttexthash="1038479" _mstvisible="2" %)
474 The last 2 bytes of data are meaningless
475 )))
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477 (% _mstvisible="1" %)
478 (((
479 (% _msthash="506064" _msttexthash="21185632" _mstvisible="2" %)
480 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
481 )))
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483
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485 (% _mstvisible="1" %)
486 ==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
487
488 (% _msthash="315258" _msttexthash="41539368" _mstvisible="1" %)
489 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:
490
491 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
492 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 96px;" %)(% _mstvisible="5" %)
493 (((
494 (% _mstvisible="6" %)
495 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
496 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
497 (((
498 (% _mstvisible="6" %)
499 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
500 )))|=(% _mstvisible="4" style="width: 99px;" %)(% _mstvisible="5" %)
501 (((
502 (% _mstvisible="6" %)
503 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
504 )))|=(% _mstvisible="4" style="width: 132px;" %)(% _mstvisible="5" %)
505 (((
506 (% _mstvisible="6" %)
507 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
508 )))|=(% _mstvisible="4" style="width: 54px;" %)(% _mstvisible="5" %)
509 (((
510 (% _mstvisible="6" %)
511 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
512 )))|=(% _mstvisible="4" style="width: 64px;" %)(% _mstvisible="5" %)
513 (((
514 (% _mstvisible="6" %)
515 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
516 )))
517 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
518 (((
519 (% _mstvisible="6" %)
520 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
521 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
522 (((
523 (% _mstvisible="6" %)
524 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
525 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
526 (((
527 (% _mstvisible="6" %)
528 (((
529 (% _mstvisible="7" %)
530 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
531 )))
532
533 (% _mstvisible="6" %)
534 (((
535 (% _mstvisible="7" %)
536 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
537 )))
538 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
539 (((
540 (% _mstvisible="6" %)
541 (((
542 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
543 BAT Status &
544 )))
545
546 (% _mstvisible="6" %)
547 (((
548 (% _mstvisible="7" %)
549 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
550 )))
551 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
552 (((
553 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
554 Status & Ext
555 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
556 (((
557 (% _mstvisible="6" %)
558 (((
559 (% _mstvisible="7" %)
560 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
561 )))
562 )))
563
564
565 (% _mstvisible="1" %)
566 * (% _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**
567
568 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:469px" %)
569 (% _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]
570 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
571 (((
572 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
573 BAT Status
574
575 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
576 00(b): Ultra Low ( BAT <= 2.50v)
577
578 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
579 01(b): Low  (2.50v <=BAT <= 2.55v)
580
581 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
582 10(b): OK   (2.55v <= BAT <=2.65v)
583
584 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
585 11(b): Good   (BAT >= 2.65v)
586 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
587 (((
588 (% _mstvisible="6" %)
589 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
590
591 (% _mstvisible="6" %)
592
593 )))
594
595
596 (% _mstvisible="1" %)
597 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
598
599 (% _mstvisible="1" %)
600 [[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
601
602 (% _mstvisible="1" %)
603 * Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
604 * 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.
605 * 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)
606
607
608
609 (% _mstvisible="1" %)
610 == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
611
612 (% _msthash="315259" _msttexthash="20933341" _mstvisible="1" %)
613 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:
614
615 (% _mstvisible="1" %)
616 (((
617 (% _msthash="506065" _msttexthash="4753983" _mstvisible="2" %)
618 (% _mstvisible="3" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
619 )))
620
621 (% _mstvisible="1" %)
622 (((
623 (% _msthash="506066" _msttexthash="14696682" _mstvisible="2" %)
624 (% _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.
625 )))
626
627 (% _mstvisible="1" %)
628 (((
629 (% _msthash="506067" _msttexthash="180297" _mstvisible="2" %)
630 Add Datacake:
631 )))
632
633 (% _mstvisible="1" %)
634 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
635
636
637 (% _msthash="315260" _msttexthash="750178" _mstvisible="1" %)
638 Select default key as Access Key:
639
640 (% _mstvisible="1" %)
641 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
642
643 (% _msthash="315261" _msttexthash="2134964" _mstvisible="1" %)
644 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
645
646 (% _mstvisible="1" %)
647 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
648
649 (% _mstvisible="1" %)
650 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
651
652
653
654 (% _mstvisible="1" %)
655 == (% _msthash="350454" _msttexthash="323544" _mstvisible="3" %)2.6 Datalog Feature(%%) ==
656
657 (% _msthash="315262" _msttexthash="32283004" _mstvisible="1" %)
658 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.
659
660
661 (% _mstvisible="1" %)
662 === (% _msthash="886158" _msttexthash="842426" _mstvisible="3" %)2.6.1 Ways to get datalog via LoRaWAN(%%) ===
663
664 (% _msthash="315263" _msttexthash="409604" _mstvisible="1" %)
665 There are two methods:
666
667 (% _mstvisible="1" %)
668 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
669 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.
670
671
672
673 (% _mstvisible="1" %)
674 === (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
675
676 (% _msthash="315264" _msttexthash="1182285" _mstvisible="1" %)
677 LHT65N uses Unix TimeStamp format based on
678
679 (% _mstvisible="1" %)
680 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
681
682
683 (% _mstvisible="1" %)
684 (((
685 (% _msthash="506068" _msttexthash="2717234" _mstvisible="2" %)
686 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
687 )))
688
689 (% _mstvisible="1" %)
690 (((
691 (% _msthash="506069" _msttexthash="709813" _mstvisible="2" %)
692 Below is the converter example
693 )))
694
695 (% _mstvisible="1" %)
696 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
697
698 (% _msthash="315265" _msttexthash="15137317" _mstvisible="1" %)
699 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
700
701 (% _mstvisible="1" %)
702 === (% _msthash="359294" _msttexthash="332748" _mstvisible="3" %)2.6.3 Set Device Time(%%) ===
703
704 (% _mstvisible="1" %)
705 (((
706 (% _msthash="506070" _msttexthash="4521946" _mstvisible="2" %)
707 There are two ways to set device’s time:
708 )))
709
710 (% _mstvisible="1" %)
711 (((
712 (% _mstvisible="2" %)
713 (% _msthash="506071" _msttexthash="1498471" _mstvisible="4" %)**1. Through LoRaWAN MAC Command (Default settings)**
714 )))
715
716 (% _mstvisible="1" %)
717 (((
718 (% _msthash="506072" _msttexthash="2126267" _mstvisible="2" %)
719 User need to set SYNCMOD=1 to enable sync time via MAC command.
720 )))
721
722 (% _mstvisible="1" %)
723 (((
724 (% _msthash="506073" _msttexthash="54430324" _mstvisible="2" %)
725 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).
726 )))
727
728 (% _mstvisible="1" %)
729 (((
730 (% _msthash="506074" _msttexthash="92531127" _mstvisible="2" %)
731 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.
732 )))
733
734 (% _mstvisible="1" %)
735 (((
736 (% _mstvisible="2" %)
737
738 )))
739
740 (% _mstvisible="1" %)
741 (((
742 (% _mstvisible="2" %)
743 (% _msthash="506075" _msttexthash="329719" _mstvisible="4" %)**2. Manually Set Time**
744 )))
745
746 (% _mstvisible="1" %)
747 (((
748 (% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
749 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
750 )))
751
752 (% _mstvisible="1" %)
753 === (% _msthash="460759" _msttexthash="430001" _mstvisible="3" %)2.6.4 Poll sensor value(%%) ===
754
755 (% _msthash="315266" _msttexthash="4955821" _mstvisible="1" %)
756 User can poll sensor value based on timestamps from the server. Below is the downlink command.
757
758 (% _mstvisible="1" %)
759 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
760
761 (% _mstvisible="1" %)
762 (((
763 (% _msthash="506077" _msttexthash="14670916" _mstvisible="2" %)
764 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.
765 )))
766
767 (% _mstvisible="1" %)
768 (((
769 (% _mstvisible="2" %)
770 For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(% _mstvisible="3" style="display:none" %)
771 )))
772
773 (% _mstvisible="1" %)
774 (((
775 (% _msthash="506078" _msttexthash="6907459" _mstvisible="2" %)
776 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
777 )))
778
779 (% _mstvisible="1" %)
780 (((
781 (% _msthash="506079" _msttexthash="23531573" _mstvisible="2" %)
782 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
783 )))
784
785
786 (% _mstvisible="1" %)
787 === (% _msthash="650923" _msttexthash="614185" _mstvisible="3" %)2.6.5 Datalog Uplink payload(%%) ===
788
789 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
790 The Datalog poll reply uplink will use below payload format.
791
792 (% _mstvisible="1" %)
793 (((
794 (% _mstvisible="2" %)
795 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
796 )))
797
798 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:510px" %)
799 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
800 (((
801 (% _mstvisible="6" %)
802 (((
803 (% _mstvisible="7" %)
804 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
805 )))
806 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
807 (((
808 (% _mstvisible="6" %)
809 (((
810 (% _mstvisible="7" %)
811 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
812 )))
813 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
814 (((
815 (% _mstvisible="6" %)
816 (((
817 (% _mstvisible="7" %)
818 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
819 )))
820 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
821 (((
822 (% _mstvisible="6" %)
823 (((
824 (% _mstvisible="7" %)
825 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
826 )))
827 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
828 (((
829 (% _mstvisible="6" %)
830 (((
831 (% _mstvisible="7" %)
832 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
833 )))
834 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
835 (((
836 (% _mstvisible="6" %)
837 (((
838 (% _mstvisible="7" %)
839 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
840 )))
841 )))
842 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
843 (((
844 (% _mstvisible="6" %)
845 (((
846 (% _mstvisible="7" %)
847 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
848 )))
849 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
850 (((
851 (% _mstvisible="6" %)
852 (((
853 (% _mstvisible="7" %)
854 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
855 )))
856 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
857 (((
858 (% _mstvisible="6" %)
859 (((
860 (% _mstvisible="7" %)
861 (((
862 (% _mstvisible="8" %)
863 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
864 )))
865 )))
866
867 (% _mstvisible="6" %)
868 (((
869 (% _mstvisible="7" %)
870 (((
871 (% _mstvisible="8" %)
872 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
873 )))
874 )))
875 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
876 (((
877 (% _mstvisible="6" %)
878 (((
879 (% _mstvisible="7" %)
880 (((
881 (% _mstvisible="8" %)
882 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
883 )))
884 )))
885
886 (% _mstvisible="6" %)
887 (((
888 (% _mstvisible="7" %)
889 (((
890 (% _mstvisible="8" %)
891 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
892 )))
893 )))
894 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
895 (((
896 (% _mstvisible="6" %)
897 (((
898 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
899 Poll message flag & Ext
900 )))
901 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
902 (((
903 (% _mstvisible="6" %)
904 (((
905 (% _mstvisible="7" %)
906 (((
907 (% _mstvisible="8" %)
908 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
909 )))
910 )))
911
912 (% _mstvisible="6" %)
913 (((
914 (% _mstvisible="7" %)
915 (((
916 (% _mstvisible="8" %)
917
918 )))
919 )))
920 )))
921
922 (% _mstvisible="1" %)
923 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
924
925 (% _mstvisible="1" %)
926 [[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
927
928 (% _mstvisible="1" %)
929 (((
930 (% _mstvisible="2" %)
931 (((
932 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
933 Poll Message Flag: 1: This message is a poll message reply.
934 )))
935 )))
936
937 (% _mstvisible="1" %)
938 * (% _mstvisible="3" %)
939 (((
940 (% _mstvisible="4" %)
941 (((
942 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
943 Poll Message Flag is set to 1.
944 )))
945 )))
946 * (% _mstvisible="3" %)
947 (((
948 (% _mstvisible="4" %)
949 (((
950 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
951 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
952 )))
953 )))
954
955 (% _mstvisible="1" %)
956 (((
957 (% _mstvisible="2" %)
958 (((
959 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
960 For example, in US915 band, the max payload for different DR is:
961 )))
962 )))
963
964 (% _mstvisible="1" %)
965 (((
966 (% _mstvisible="2" %)
967 (((
968 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
969 a) DR0: max is 11 bytes so one entry of data
970 )))
971 )))
972
973 (% _mstvisible="1" %)
974 (((
975 (% _mstvisible="2" %)
976 (((
977 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
978 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
979 )))
980 )))
981
982 (% _mstvisible="1" %)
983 (((
984 (% _mstvisible="2" %)
985 (((
986 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
987 c) DR2: total payload includes 11 entries of data
988 )))
989 )))
990
991 (% _mstvisible="1" %)
992 (((
993 (% _mstvisible="2" %)
994 (((
995 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
996 d) DR3: total payload includes 22 entries of data.
997 )))
998 )))
999
1000 (% _mstvisible="1" %)
1001 (((
1002 (% _mstvisible="2" %)
1003 (((
1004 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
1005 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
1006 )))
1007 )))
1008
1009
1010 (% _mstvisible="1" style="text-align: left;" %)
1011 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
1012
1013 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
1014 If LHT65N has below data inside Flash:
1015
1016 (% _mstvisible="1" %)
1017 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
1018
1019 (% _mstvisible="1" %)
1020 (((
1021 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
1022 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
1023 )))
1024
1025 (% _mstvisible="1" %)
1026 (((
1027 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
1028 Where : Start time: 60065F97 = time 21/1/19 04:27:03
1029 )))
1030
1031 (% _mstvisible="1" %)
1032 (((
1033 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
1034 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
1035 )))
1036
1037 (% _mstvisible="1" %)
1038 (((
1039 (% _mstvisible="2" %)
1040
1041 )))
1042
1043 (% _mstvisible="1" %)
1044 (((
1045 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
1046 LHT65N will uplink this payload.
1047 )))
1048
1049 (% _mstvisible="1" %)
1050 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
1051
1052 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
1053 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
1054
1055 Where the first 11 bytes is for the first entry:
1056
1057 7FFF089801464160065F97
1058
1059 Ext sensor data=0x7FFF/100=327.67
1060
1061 Temp=0x0898/100=22.00
1062
1063 Hum=0x0146/10=32.6
1064
1065 poll message flag & Ext=0x41,means reply data,Ext=1
1066
1067 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
1068
1069
1070 (% _mstvisible="1" style="text-align: left;" %)
1071 == (% _msthash="244504" _msttexthash="177736" _mstvisible="3" %)2.7 Alarm Mode(%%) ==
1072
1073 (% _msthash="315279" _msttexthash="16493308" _mstvisible="1" style="text-align: left;" %)
1074 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.
1075
1076 (% _mstvisible="1" %)
1077 (((
1078 (% _mstvisible="2" style="text-align: left;" %)
1079 (% _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.
1080 )))
1081
1082 (% _mstvisible="1" style="text-align: left;" %)
1083 (% _msthash="315280" _msttexthash="363480" _mstvisible="3" %)**AT COMMAND FOR ALARM MODE:**
1084
1085 (% _mstvisible="1" class="box infomessage" %)
1086 (((
1087 (% _msthash="506086" _msttexthash="2193529" _mstvisible="2" style="text-align: left;" %)
1088 (% _istranslated="1" _mstmutation="1" _mstvisible="4" %)**AT+WMOD=1**(%%): Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1089
1090 (% _msthash="506087" _msttexthash="3671265" _mstvisible="2" style="text-align: left;" %)
1091 (% _istranslated="1" _mstvisible="4" %)**AT+CITEMP=1**(%%): The interval between checking the alarm temperature. (In minutes)
1092
1093 (% _msthash="506088" _msttexthash="3310437" _mstvisible="2" style="text-align: left;" %)
1094 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP**(%%): Gets or sets the alarm range of the internal temperature sensor
1095
1096 (% _mstvisible="2" style="text-align: left;" %)
1097 (% _istranslated="1" _mstmutation="1" %)**AT+ARTEMP=？ **(%%): Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1098
1099 (% _msthash="506089" _msttexthash="3590067" _mstvisible="2" style="text-align: left;" %)
1100 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP=45,105**(%%): Set the internal temperature sensor alarm range from 45 to 105.
1101 )))
1102
1103 (% _msthash="72514" _msttexthash="253149" _mstvisible="1" style="text-align: left;" %)
1104 == (% _istranslated="1" _msthash="168103" _msttexthash="59969" _mstvisible="3" %)2.8 (%%)LED Indicator ==
1105
1106 (% _mstvisible="1" %)
1107 (((
1108 (% _msthash="197769" _msttexthash="2924142" style="text-align: left;" %)
1109 The LHT65 has a triple color LED which for easy showing different stage .
1110
1111 (% _msthash="289211" _msttexthash="3402659" style="text-align: left;" %)
1112 While user press ACT button, the LED will work as per LED status with ACT button.
1113 )))
1114
1115 (% _mstvisible="1" %)
1116 (((
1117 (% _msthash="506092" _msttexthash="521573" _mstvisible="2" style="text-align: left;" %)
1118 In a normal working state:
1119 )))
1120
1121 (% _mstvisible="1" %)
1122 * (% _mstvisible="3" %)
1123 (((
1124 (% _msthash="903005" _msttexthash="1647204" _mstvisible="4" %)
1125 For each uplink, the BLUE LED or RED LED will blink (% _msthash="903005" _msttexthash="46254" _mstvisible="3" %)once(%%).(% style="display:none" %)
1126
1127 (% _msthash="197771" _msttexthash="1202526" %)
1128 (% _msthash="903005" _msttexthash="1647204" _mstvisible="3" %)BLUE LED when external sensor is connected
1129 )))
1130 * (% _mstvisible="3" %)
1131 (((
1132 (% _msthash="903007" _msttexthash="1334749" _mstvisible="4" %)
1133 RED LED when external sensor is not connected
1134 )))
1135 * (% _mstvisible="3" %)
1136 (((
1137 (% _msthash="903008" _msttexthash="1875640" _mstvisible="4" %)
1138 For each success downlink, the PURPLE LED will blink once
1139 )))
1140
1141 (% _mstvisible="1" %)
1142 ----
1143
1144 (% _mstvisible="1" style="text-align: left;" %)
1145 == (% _msthash="112034" _msttexthash="277511" _mstvisible="3" %)2.9 installation(%%) ==
1146
1147 (% _mstvisible="1" %)
1148 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1149
1150 (% _msthash="604150" _msttexthash="563212" _mstvisible="1" style="text-align: left;" %)
1151 = (% _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(%%) =
1152
1153 (% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1154 == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(%%) E3 Temperature Probe ==
1155
1156 (% _mstvisible="1" %)
1157 [[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"]]
1158
1159
1160 (% _msthash="315354" _msttexthash="1270971" _mstvisible="1" style="text-align: left;" %)
1161 Temperature sensor with 2 meters cable long
1162
1163 (% _mstvisible="1" %)
1164 * Resolution: 0.0625 °C
1165 * ±0.5°C accuracy from -10°C to +85°C
1166 * ±2°C accuracy from -55°C to +125°C
1167 * Operating Range: -40 ~~ 125 °C
1168 * -55°C to 125°C
1169 * Working voltage 2.35v ~~ 5v
1170
1171 (% _mstvisible="1" style="text-align: left;" %)
1172 = (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) =
1173
1174 (% _mstvisible="1" %)
1175 (((
1176 (% _msthash="506246" _msttexthash="2005926" _mstvisible="2" style="text-align: left;" %)
1177 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1178 )))
1179
1180 (% _mstvisible="1" %)
1181 * (% _mstvisible="3" %)
1182 (((
1183 (% _msthash="903318" _msttexthash="635544" _mstvisible="4" %)
1184 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1185 )))
1186 * (% _mstvisible="3" %)
1187 (((
1188 (% _msthash="903319" _msttexthash="2004301" _mstvisible="4" %)
1189 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1190 )))
1191
1192 (% _mstvisible="1" %)
1193 (((
1194 (% _mstvisible="2" style="text-align: left;" %)
1195
1196 )))
1197
1198 (% _mstvisible="1" %)
1199 (((
1200 (% _msthash="506248" _msttexthash="2144051" _mstvisible="2" style="text-align: left;" %)
1201 There are two kinds of commands to configure LHT65N, they are:
1202 )))
1203
1204 (% _mstvisible="1" %)
1205 (((
1206 (% _mstvisible="2" style="text-align: left;" %)
1207 (% _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" %).
1208 )))
1209
1210 (% _mstvisible="1" %)
1211 (((
1212 (% _msthash="506250" _msttexthash="774527" _mstvisible="2" style="text-align: left;" %)
1213 These commands are to configure:
1214 )))
1215
1216 (% _mstvisible="1" %)
1217 * (% _mstvisible="3" %)
1218 (((
1219 (% _msthash="903320" _msttexthash="1503580" _mstvisible="4" %)
1220 General system settings like: uplink interval.
1221 )))
1222 * (% _mstvisible="3" %)
1223 (((
1224 (% _msthash="903321" _msttexthash="1244334" _mstvisible="4" %)
1225 LoRaWAN protocol & radio-related commands.
1226 )))
1227
1228 (% _mstvisible="1" %)
1229 (((
1230 (% _msthash="506251" _msttexthash="8343023" _mstvisible="2" style="text-align: left;" %)
1231 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]]
1232 )))
1233
1234 (% _mstvisible="1" %)
1235 (((
1236 (% _mstvisible="2" style="text-align: left;" %)
1237
1238 )))
1239
1240 (% _mstvisible="1" %)
1241 (((
1242 (% _mstvisible="2" style="text-align: left;" %)
1243 (% _mstvisible="3" style="color:#4f81bd" %)* **Commands special design for LHT65N**
1244 )))
1245
1246 (% _mstvisible="1" %)
1247 (((
1248 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1249 These commands are only valid for LHT65N, as below:
1250
1251 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1252
1253 )))
1254
1255 (% _mstvisible="1" style="text-align: left;" %)
1256 == (% _msthash="708253" _msttexthash="668772" _mstvisible="3" %)4.1 Set Transmit Interval Time(%%) ==
1257
1258 (% _msthash="315355" _msttexthash="1659268" _mstvisible="1" style="text-align: left;" %)
1259 Feature: Change LoRaWAN End Node Transmit Interval.
1260
1261 (% _mstvisible="1" style="text-align: left;" %)
1262 (% _msthash="315356" _msttexthash="241696" _mstvisible="3" %)**AT Command: AT+TDC**
1263
1264 (% _mstvisible="1" %)
1265 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1266
1267 (% _mstvisible="1" %)
1268 (((
1269 (% _mstvisible="2" style="text-align: left;" %)
1270 (% _msthash="506255" _msttexthash="381992" _mstvisible="4" %)**Downlink Command: 0x01**
1271 )))
1272
1273 (% _mstvisible="1" %)
1274 (((
1275 (% _msthash="506256" _msttexthash="1996592" _mstvisible="2" style="text-align: left;" %)
1276 Format: Command Code (0x01) followed by 3 bytes time value.
1277 )))
1278
1279 (% _mstvisible="1" %)
1280 (((
1281 (% _msthash="506257" _msttexthash="12934649" _mstvisible="2" style="text-align: left;" %)
1282 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1283 )))
1284
1285 (% _mstvisible="1" %)
1286 * (% _mstvisible="3" %)
1287 (((
1288 (% _msthash="903322" _msttexthash="3250546" _mstvisible="4" %)
1289 (% _mstvisible="5" %)**Example 1**(%%): Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1290 )))
1291 * (% _mstvisible="3" %)
1292 (((
1293 (% _msthash="903323" _msttexthash="3253315" _mstvisible="4" %)
1294 (% _mstvisible="5" %)**Example 2**(%%): Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1295 )))
1296
1297 (% _mstvisible="1" style="text-align: left;" %)
1298 == (% _msthash="614770" _msttexthash="578240" _mstvisible="3" %)4.2 Set External Sensor Mode(%%) ==
1299
1300 (% _msthash="315357" _msttexthash="975117" _mstvisible="1" style="text-align: left;" %)
1301 Feature: Change External Sensor Mode.
1302
1303 (% _mstvisible="1" style="text-align: left;" %)
1304 (% _msthash="315358" _msttexthash="248118" _mstvisible="3" %)**AT Command: AT+EXT**
1305
1306 (% _mstvisible="1" %)
1307 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1308
1309 (% _mstvisible="1" %)
1310 (((
1311 (% _mstvisible="2" style="text-align: left;" %)
1312 (% _msthash="506258" _msttexthash="387855" _mstvisible="4" %)**Downlink Command: 0xA2**
1313 )))
1314
1315 (% _mstvisible="1" %)
1316 (((
1317 (% _msthash="506259" _msttexthash="395629" _mstvisible="2" style="text-align: left;" %)
1318 Total bytes: 2 ~~ 5 bytes
1319 )))
1320
1321 (% _mstvisible="1" %)
1322 (((
1323 (% _mstvisible="2" %)
1324 (% _msthash="506260" _msttexthash="104767" _mstvisible="4" %)**Example:**
1325 )))
1326
1327 (% _mstvisible="1" %)
1328 * (% _mstvisible="3" %)
1329 (((
1330 (% _msthash="903324" _msttexthash="934973" _mstvisible="4" %)
1331 0xA201: Set external sensor type to E1
1332 )))
1333 * (% _mstvisible="3" %)
1334 (((
1335 (% _msthash="903325" _msttexthash="354770" _mstvisible="4" %)
1336 0xA209: Same as AT+EXT=9
1337 )))
1338 * (% _mstvisible="3" %)
1339 (((
1340 (% _msthash="903326" _msttexthash="639067" _mstvisible="4" %)
1341 0xA20702003c,Same as AT+SETCNT=60
1342 )))
1343
1344 (% _mstvisible="1" style="text-align: left;" %)
1345 == (% _msthash="1562483" _msttexthash="1445717" _mstvisible="3" %)4.3 Enable/Disable uplink Temperature probe ID(%%) ==
1346
1347 (% _msthash="315359" _msttexthash="2977572" _mstvisible="1" style="text-align: left;" %)
1348 Feature: If PID is enabled, device will send the temperature probe ID on:
1349
1350 (% _mstvisible="1" %)
1351 * First Packet after OTAA Join
1352 * Every 24 hours since the first packet.
1353
1354 (% _msthash="315360" _msttexthash="658814" _mstvisible="1" style="text-align: left;" %)
1355 PID is default set to disable (0)
1356
1357 (% _mstvisible="1" style="text-align: left;" %)
1358 (% _msthash="315361" _msttexthash="137488" _mstvisible="3" %)**AT Command:**
1359
1360 (% _mstvisible="1" %)
1361 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1362
1363 (% _mstvisible="1" style="text-align: left;" %)
1364 (% _msthash="315362" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1365
1366 (% _mstvisible="1" %)
1367 * 0xA800  **~-~->** AT+PID=0
1368 * 0xA801     **~-~->** AT+PID=1
1369
1370 (% _mstvisible="1" style="text-align: left;" %)
1371 == (% _msthash="266344" _msttexthash="242879" _mstvisible="3" %)4.4 Set Password(%%) ==
1372
1373 (% _msthash="315363" _msttexthash="1170728" _mstvisible="1" style="text-align: left;" %)
1374 Feature: Set device password, max 9 digits
1375
1376 (% _mstvisible="1" style="text-align: left;" %)
1377 (% _msthash="315364" _msttexthash="295009" _mstvisible="3" %)**AT Command: AT+PWORD**
1378
1379 (% _mstvisible="1" %)
1380 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1381
1382 (% _mstvisible="1" %)
1383 (((
1384 (% _mstvisible="2" style="text-align: left;" %)
1385 (% _msthash="506261" _msttexthash="298038" _mstvisible="4" %)**Downlink Command:**
1386 )))
1387
1388 (% _mstvisible="1" %)
1389 (((
1390 (% _msthash="506262" _msttexthash="974311" _mstvisible="2" style="text-align: left;" %)
1391 No downlink command for this feature.
1392 )))
1393
1394 (% _mstvisible="1" style="text-align: left;" %)
1395 == (% _msthash="306956" _msttexthash="281918" _mstvisible="3" %)4.5 Quit AT Command(%%) ==
1396
1397 (% _msthash="315365" _msttexthash="4616456" _mstvisible="1" style="text-align: left;" %)
1398 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1399
1400 (% _mstvisible="1" style="text-align: left;" %)
1401 (% _msthash="315366" _msttexthash="289120" _mstvisible="3" %)**AT Command: AT+DISAT**
1402
1403 (% _mstvisible="1" %)
1404 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1405
1406 (% _mstvisible="1" style="text-align: left;" %)
1407 (% _msthash="315367" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1408
1409 (% _msthash="315368" _msttexthash="974311" _mstvisible="1" style="text-align: left;" %)
1410 No downlink command for this feature.
1411
1412 (% _mstvisible="1" style="text-align: left;" %)
1413 == (% _msthash="362752" _msttexthash="334919" _mstvisible="3" %)4.6 Set to sleep mode(%%) ==
1414
1415 (% _msthash="315369" _msttexthash="779688" _mstvisible="1" style="text-align: left;" %)
1416 Feature: Set device to sleep mode
1417
1418 (% _mstvisible="1" style="text-align: left;" %)
1419 (% _msthash="315370" _msttexthash="289783" _mstvisible="3" %)**AT Command: AT+SLEEP**
1420
1421 (% _mstvisible="1" %)
1422 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1423
1424 (% _mstvisible="1" %)
1425 (% _msthash="315371" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1426
1427 (% _mstvisible="1" %)
1428 * There is no downlink command to set to Sleep mode.
1429
1430 (% _mstvisible="1" %)
1431 == (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) ==
1432
1433 (% _msthash="315372" _msttexthash="2565524" _mstvisible="1" %)
1434 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1435
1436 (% _mstvisible="1" %)
1437 (% _msthash="315373" _msttexthash="137488" _mstvisible="3" %)**AT Command:**
1438
1439 (% _mstvisible="1" %)
1440 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1441
1442 (% _mstvisible="1" %)
1443 (% _msthash="315374" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1444
1445 (% _msthash="315375" _msttexthash="2898571" _mstvisible="1" %)
1446 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1447
1448 (% _mstvisible="1" %)
1449 == (% _msthash="376779" _msttexthash="348712" _mstvisible="3" %)4.8 Set Time Sync Mode(%%) ==
1450
1451 (% _mstvisible="1" %)
1452 (((
1453 (% _msthash="506263" _msttexthash="11748321" _mstvisible="2" %)
1454 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1455 )))
1456
1457 (% _mstvisible="1" %)
1458 (((
1459 (% _msthash="506264" _msttexthash="6530264" _mstvisible="2" %)
1460 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.
1461 )))
1462
1463 (% _mstvisible="1" %)
1464 (((
1465 (% _mstvisible="2" %)
1466 (% _msthash="506265" _msttexthash="137488" _mstvisible="4" %)**AT Command:**
1467 )))
1468
1469 (% _mstvisible="1" %)
1470 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1471
1472 (% _mstvisible="1" %)
1473 (% _msthash="315376" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1474
1475 (% _msthash="315377" _msttexthash="479648" _mstvisible="1" %)
1476 0x28 01 ~/~/ Same As AT+SYNCMOD=1
1477
1478 (% _msthash="315378" _msttexthash="479076" _mstvisible="1" %)
1479 0x28 00 ~/~/ Same As AT+SYNCMOD=0
1480
1481 (% _mstvisible="1" %)
1482 == (% _msthash="536432" _msttexthash="502528" _mstvisible="3" %)4.9 Set Time Sync Interval(%%) ==
1483
1484 (% _msthash="315379" _msttexthash="3065777" _mstvisible="1" %)
1485 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1486
1487 (% _mstvisible="1" %)
1488 (% _msthash="315380" _msttexthash="137488" _mstvisible="3" %)**AT Command:**
1489
1490 (% _mstvisible="1" %)
1491 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1492
1493 (% _mstvisible="1" %)
1494 (% _msthash="315381" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1495
1496 (% _msthash="315382" _msttexthash="590044" _mstvisible="1" %)
1497 0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
1498
1499 (% _mstvisible="1" %)
1500 == (% _msthash="927901" _msttexthash="882570" _mstvisible="3" %)4.10 Print data entries base on page.(%%) ==
1501
1502 (% _msthash="315383" _msttexthash="3233334" _mstvisible="1" %)
1503 Feature: Print the sector data from start page to stop page (max is 416 pages).
1504
1505 (% _mstvisible="1" %)
1506 (% _msthash="315384" _msttexthash="264953" _mstvisible="3" %)**AT Command: AT+PDTA**
1507
1508 (% _mstvisible="1" %)
1509 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1510
1511 (% _mstvisible="1" %)
1512 (% _msthash="315385" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1513
1514 (% _msthash="315386" _msttexthash="799539" _mstvisible="1" %)
1515 No downlink commands for feature
1516
1517 (% _mstvisible="1" %)
1518 == (% _msthash="788762" _msttexthash="747149" _mstvisible="3" %)4.11 Print last few data entries.(%%) ==
1519
1520 (% _msthash="315387" _msttexthash="1101009" _mstvisible="1" %)
1521 Feature: Print the last few data entries
1522
1523 (% _mstvisible="1" %)
1524 (% _msthash="315388" _msttexthash="288522" _mstvisible="3" %)**AT Command: AT+PLDTA**
1525
1526 (% _mstvisible="1" %)
1527 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1528
1529 (% _mstvisible="1" %)
1530 (% _msthash="315389" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1531
1532 (% _msthash="315390" _msttexthash="799539" _mstvisible="1" %)
1533 No downlink commands for feature
1534
1535 (% _mstvisible="1" %)
1536 == (% _msthash="437814" _msttexthash="408057" _mstvisible="3" %)4.12 Clear Flash Record(%%) ==
1537
1538 (% _msthash="315391" _msttexthash="1609075" _mstvisible="1" %)
1539 Feature: Clear flash storage for data log feature.
1540
1541 (% _mstvisible="1" %)
1542 (% _msthash="315392" _msttexthash="311415" _mstvisible="3" %)**AT Command: AT+CLRDTA**
1543
1544 (% _mstvisible="1" %)
1545 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1546
1547 (% _mstvisible="1" %)
1548 (% _msthash="315393" _msttexthash="388193" _mstvisible="3" %)**Downlink Command: 0xA3**
1549
1550 (% _mstvisible="1" %)
1551 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1552
1553 (% _mstvisible="1" %)
1554 == (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) ==
1555
1556 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1557 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.
1558
1559
1560 (% _mstvisible="1" %)
1561 (% _msthash="315395" _msttexthash="334256" _mstvisible="3" %)**AT Command: AT+PNACKMD**
1562
1563 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1564 The default factory setting is 0
1565
1566 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1567 (% _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**
1568 (% _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
1569
1570 (% _mstvisible="1" %)
1571 (% _msthash="315397" _msttexthash="383981" _mstvisible="3" %)**Downlink Command: 0x34**
1572
1573 (% _mstvisible="1" %)
1574 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1575
1576 (% _mstvisible="1" %)
1577 = (% _msthash="568737" _msttexthash="502827" _mstvisible="3" %)5. Battery & How to replace(%%) =
1578
1579 (% _mstvisible="1" %)
1580 == (% _msthash="265486" _msttexthash="242073" _mstvisible="3" %)5.1 Battery Type(%%) ==
1581
1582 (% _msthash="315398" _msttexthash="33754799" _mstvisible="1" %)
1583 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.
1584
1585 (% _mstvisible="1" %)
1586 (((
1587 (% _mstvisible="2" %)
1588 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1589 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1590 )))
1591
1592 (% _mstvisible="1" %)
1593 (((
1594 (% _mstvisible="2" %)
1595 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1596
1597 )))
1598
1599 (% _mstvisible="1" %)
1600 == (% _msthash="353795" _msttexthash="326703" _mstvisible="3" %)5.2 Replace Battery(%%) ==
1601
1602 (% _msthash="315399" _msttexthash="11289278" _mstvisible="1" %)
1603 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.
1604
1605 (% _mstvisible="1" %)
1606 [[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"]]
1607
1608 (% _mstvisible="1" %)
1609 == (% _msthash="494650" _msttexthash="462241" _mstvisible="3" %)5.3 Battery Life Analyze(%%) ==
1610
1611 (% _mstvisible="1" %)
1612 (((
1613 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1614 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:
1615 [[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]]
1616
1617
1618 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]]
1619
1620
1621 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1622 = (% _msthash="183170" _msttexthash="163566" _mstvisible="3" %)6. FAQ(%%) =
1623
1624 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1625 == 6.1 How to use AT Command? ==
1626
1627 LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to
1628
1629 connect to LHT65 for using AT command, as below.
1630
1631 [[image:image-20220530085651-1.png]]
1632
1633
1634 Connection:
1635
1636 ✓ USB to TTL GND <~-~->GND
1637
1638 ✓ USB to TTL RXD <~-~-> D+
1639
1640 ✓ USB to TTL TXD <~-~-> A11
1641
1642 ✓ USB to TTL 3.3V <~-~-> D-
1643
1644 In PC, User needs to set serial tool(such as **putty**, SecureCRT) baud rate to **9600** to access to
1645
1646 access serial console for LHT65N. The AT commands are disable by default and need to enter
1647
1648 password (default:**123456**) to active it. Timeout to input AT Command is 5 min, after 5-minute,
1649
1650 user need to input password again. User can use AT+DISAT command to disable AT command
1651
1652 before timeout.
1653
1654 Input password and ATZ to activate LHT65N,As shown below:
1655
1656 [[image:image-20220530095701-4.png]]
1657
1658
1659 AT Command List is as below:
1660
1661 AT+<CMD>? : Help on <CMD>
1662
1663 AT+<CMD> : Run <CMD>
1664
1665 AT+<CMD>=<value> : Set the value
1666
1667 AT+<CMD>=? : Get the value
1668
1669 AT+DEBUG:Set more info output
1670
1671 ATZ: Trig a reset of the MCU
1672
1673 AT+FDR: Reset Parameters to Factory Default, Keys Reserve
1674
1675 AT+DEUI: Get or Set the Device EUI
1676
1677 AT+DADDR: Get or Set the Device Address
1678
1679 AT+APPKEY: Get or Set the Application Key
1680
1681 AT+NWKSKEY: Get or Set the Network Session Key
1682
1683 AT+APPSKEY: Get or Set the Application Session Key
1684
1685 AT+APPEUI: Get or Set the Application EUI
1686
1687 AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1688
1689 AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1690
1691 AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)
1692
1693 AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1694
1695 AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1696
1697 AT+RX2FQ: Get or Set the Rx2 window frequency
1698
1699 AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1700
1701 AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1702
1703 AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1704
1705 AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1
1706
1707 in ms
1708
1709 AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2
1710
1711 in ms
1712
1713 AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1714
1715 AT+NWKID: Get or Set the Network ID
1716
1717 AT+FCU: Get or Set the Frame Counter Uplink
1718
1719 AT+FCD: Get or Set the Frame Counter Downlink
1720
1721 AT+CLASS: Get or Set the Device Class
1722
1723 AT+JOIN: Join network
1724
1725 AT+NJS: Get the join status
1726
1727 AT+SENDB: Send hexadecimal data along with the application port
1728
1729 AT+SEND: Send text data along with the application port
1730
1731 AT+RECVB: Print last received data in binary format (with hexadecimal values)
1732
1733 AT+RECV: Print last received data in raw format
1734
1735 AT+VER: Get current image version and Frequency Band
1736
1737 AT+CFM: Get or Set the confirmation mode (0-1)
1738
1739 AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1740
1741 AT+SNR: Get the SNR of the last received packet
1742
1743 AT+RSSI: Get the RSSI of the last received packet
1744
1745 AT+TDC: Get or set the application data transmission interval in ms
1746
1747 AT+PORT: Get or set the application port
1748
1749 AT+DISAT: Disable AT commands
1750
1751 AT+PWORD: Set password, max 9 digits
1752
1753 AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1754
1755 AT+CHE: Get or Set eight channels mode,Only for US915,AU915,CN470
1756
1757 AT+PDTA: Print the sector data from start page to stop page
1758
1759 AT+PLDTA: Print the last few sets of data
1760
1761 AT+CLRDTA: Clear the storage, record position back to 1st
1762
1763 AT+SLEEP: Set sleep mode
1764
1765 AT+EXT: Get or Set external sensor model
1766
1767 AT+BAT: Get the current battery voltage in mV
1768
1769 AT+CFG: Print all configurations
1770
1771 AT+WMOD: Get or Set Work Mode
1772
1773 AT+ARTEMP: Get or set the internal Temperature sensor alarm range
1774
1775 AT+CITEMP: Get or set the internal Temperature sensor collection interval in min
1776
1777 AT+SETCNT:Set the count at present
1778
1779 AT+RJTDC: Get or set the ReJoin data transmission interval in min
1780
1781 AT+RPL: Get or set response level
1782
1783 AT+TIMESTAMP: Get or Set UNIX timestamp in second
1784
1785 AT+LEAPSEC: Get or Set Leap Second
1786
1787 AT+SYNCMOD: Get or Set time synchronization method
1788
1789 AT+SYNCTDC: Get or set time synchronization interval in day
1790
1791 AT+PID: Get or set the PID
1792
1793
1794 )))
1795
1796 (% _mstvisible="1" %)
1797 = (% _msthash="183170" _msttexthash="163566" _mstvisible="3" %)7. Order Info(%%) =
1798
1799 (% _mstvisible="1" %)
1800 (((
1801 (% _msthash="506267" _msttexthash="432432" _mstvisible="2" %)
1802 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
1803 )))
1804
1805 (% _mstvisible="1" %)
1806 (((
1807 (% _msthash="506268" _msttexthash="686946" _mstvisible="2" %)
1808 (% _mstvisible="4" style="color:#4f81bd" %)**XX **(%%): The default frequency band
1809 )))
1810
1811 (% _mstvisible="1" %)
1812 * (% _mstvisible="3" %)
1813 (((
1814 (% _msthash="903327" _msttexthash="393341" _mstvisible="4" %)
1815 (% _mstvisible="6" style="color:#4f81bd" %)** AS923**(%%): LoRaWAN AS923 band
1816 )))
1817 * (% _mstvisible="3" %)
1818 (((
1819 (% _msthash="903328" _msttexthash="394576" _mstvisible="4" %)
1820 (% _mstvisible="6" style="color:#4f81bd" %)** AU915**(%%): LoRaWAN AU915 band
1821 )))
1822 * (% _mstvisible="3" %)
1823 (((
1824 (% _msthash="903329" _msttexthash="393913" _mstvisible="4" %)
1825 (% _mstvisible="6" style="color:#4f81bd" %)** EU433**(%%): LoRaWAN EU433 band
1826 )))
1827 * (% _mstvisible="3" %)
1828 (((
1829 (% _msthash="903330" _msttexthash="399087" _mstvisible="4" %)
1830 (% _mstvisible="6" style="color:#4f81bd" %)** EU868**(%%): LoRaWAN EU868 band
1831 )))
1832 * (% _mstvisible="3" %)
1833 (((
1834 (% _msthash="903331" _msttexthash="395109" _mstvisible="4" %)
1835 (% _mstvisible="6" style="color:#4f81bd" %)** KR920**(%%): LoRaWAN KR920 band
1836 )))
1837 * (% _mstvisible="3" %)
1838 (((
1839 (% _msthash="903332" _msttexthash="400842" _mstvisible="4" %)
1840 (% _mstvisible="6" style="color:#4f81bd" %)** US915**(%%): LoRaWAN US915 band
1841 )))
1842 * (% _mstvisible="3" %)
1843 (((
1844 (% _msthash="903333" _msttexthash="396487" _mstvisible="4" %)
1845 (% _mstvisible="6" style="color:#4f81bd" %)** IN865**(%%): LoRaWAN IN865 band
1846 )))
1847 * (% _mstvisible="3" %)
1848 (((
1849 (% _msthash="903334" _msttexthash="390923" _mstvisible="4" %)
1850 (% _mstvisible="6" style="color:#4f81bd" %)** CN470**(%%): LoRaWAN CN470 band
1851 )))
1852
1853 (% _mstvisible="1" %)
1854 (((
1855 (% _msthash="506269" _msttexthash="443495" _mstvisible="2" %)
1856 (% _mstvisible="4" style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1857 )))
1858
1859 (% _mstvisible="1" %)
1860 * (% _mstvisible="3" %)
1861 (((
1862 (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
1863 (% _mstvisible="6" style="color:#4f81bd" %)**E3**(%%): External Temperature Probe
1864
1865
1866 (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
1867
1868 )))
1869
1870 (% _mstvisible="1" %)
1871 = (% _msthash="233363" _msttexthash="211237" _mstvisible="3" %)8. Packing Info(%%) =
1872
1873 (% _mstvisible="1" %)
1874 (((
1875 (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1876 (% _mstvisible="3" %)**Package Includes**(%%):
1877 )))
1878
1879 (% _mstvisible="1" %)
1880 * (% _mstvisible="3" %)
1881 (((
1882 (% _msthash="903336" _msttexthash="1033149" _mstvisible="4" %)
1883 LHT65N Temperature & Humidity Sensor x 1
1884 )))
1885 * (% _mstvisible="3" %)
1886 (((
1887 (% _msthash="903337" _msttexthash="242567" _mstvisible="4" %)
1888 Program cable x 1
1889 )))
1890 * (% _mstvisible="3" %)
1891 (((
1892 (% _msthash="903338" _msttexthash="544167" _mstvisible="4" %)
1893 Optional external sensor
1894 )))
1895
1896 (% _mstvisible="1" %)
1897 (((
1898 (% _msthash="506271" _msttexthash="403858" _mstvisible="2" %)
1899 (% _mstvisible="3" %)**Dimension and weight**(%%):
1900 )))
1901
1902 (% _mstvisible="1" %)
1903 * (% _mstvisible="3" %)
1904 (((
1905 (% _msthash="903339" _msttexthash="391807" _mstvisible="4" %)
1906 Device Size:  13.5 x 7 x 3 cm
1907 )))
1908 * (% _mstvisible="3" %)
1909 (((
1910 (% _msthash="903340" _msttexthash="285298" _mstvisible="4" %)
1911 Device Weight: 105g
1912 )))
1913 * (% _mstvisible="3" %)
1914 (((
1915 (% _msthash="903341" _msttexthash="562926" _mstvisible="4" %)
1916 Package Size / pcs : 14.5 x 8 x 5 cm
1917 )))
1918 * (% _mstvisible="3" %)
1919 (((
1920 (% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
1921 Weight / pcs : 170g
1922 )))
1923
1924 = 9. Reference =
1925
1926 * [[Datasheet, Photos, Decoder, Firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor]]
1927
1928 = 10. FCC Warning =
1929
1930 (% _mstvisible="1" %)
1931 (((
1932 (% _msthash="506272" _msttexthash="6034353" _mstvisible="2" %)
1933 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1934 )))
1935
1936 (% _mstvisible="1" %)
1937 (((
1938 (% _msthash="506273" _msttexthash="44097638" _mstvisible="2" %)
1939 (1) This device may not cause harmful interference；
1940 )))
1941
1942 (% _mstvisible="1" %)
1943 (((
1944 (% _msthash="506274" _msttexthash="7559773" _mstvisible="2" %)
1945 (2) this device must accept any interference received, including interference that may cause undesired operation.
1946 )))
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