Version 118.8 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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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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306 (% _mstvisible="6" %)
307 (% _msthash="1817479" _msttexthash="4550" _mstvisible="8" %)**2**
308 )))|=(% _mstvisible="4" style="width: 100px;" %)(% _mstvisible="5" %)
309 (((
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311 (% _msthash="1817480" _msttexthash="4550" _mstvisible="8" %)**2**
312 )))|=(% _mstvisible="4" style="width: 77px;" %)(% _mstvisible="5" %)
313 (((
314 (% _mstvisible="6" %)
315 (% _msthash="1817481" _msttexthash="4550" _mstvisible="8" %)**2**
316 )))|=(% _mstvisible="4" style="width: 47px;" %)(% _mstvisible="5" %)
317 (((
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319 (% _msthash="1817482" _msttexthash="4459" _mstvisible="8" %)**1**
320 )))|=(% _mstvisible="4" style="width: 51px;" %)(% _mstvisible="5" %)
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323 (% _msthash="1817483" _msttexthash="4732" _mstvisible="8" %)**4**
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325 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
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328 (% _msthash="1817484" _msttexthash="60203" _mstvisible="8" %)**Value**
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332 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo" _msthash="1817485" _msttexthash="22594" _mstvisible="7"]]
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338 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
339 )))
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341 (((
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345 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2224743" _msttexthash="105872" _mstvisible="8"]]
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351 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429" _mstvisible="8"]]
352 )))
353 )))|(% _mstvisible="4" style="width:47px" %)(% _mstvisible="5" %)
354 (((
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356 [[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331" _mstvisible="7"]] #
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360 [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
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364 * The First 6 bytes: has fix meanings for every LHT65N.
365 * The 7th byte (EXT #): defines the external sensor model.
366 * The 8(% _msthash="734578" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) ~~ 11(% _msthash="734579" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won’t be these four bytes.)
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372 === (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) ===
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374 (% _msthash="315251" _msttexthash="9786491" _mstvisible="1" %)
375 When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N decoder in TTNv3 for friendly reading.
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377 (% _msthash="315252" _msttexthash="3928483" _mstvisible="1" %)
378 Below is the position to put the decoder and LHT65N decoder can be download from here:
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381 [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0||_msthash="315253" _msttexthash="3509064" _mstvisible="2"]]
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384 [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
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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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406 (% _mstvisible="1" %)
407 === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
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410 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
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413 * Temperature:  0x0ABB/100=27.47℃
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415 (% _mstvisible="1" %)
416 [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
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419 * Temperature:  (0xF5C6-65536)/100=-26.18℃
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421 (% _mstvisible="1" %)
422 === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
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424 (% _mstvisible="1" %)
425 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
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428 * Humidity:    0x025C/10=60.4%
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430 (% _mstvisible="1" %)
431 === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
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433 (% _msthash="315256" _msttexthash="552240" _mstvisible="1" %)
434 Bytes for External Sensor:
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437 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
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439 (% _mstvisible="1" %)
440 === (% _msthash="221429" _msttexthash="200655" _mstvisible="3" %)2.4.6 Ext value(%%) ===
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442 (% _mstvisible="1" %)
443 ==== (% _msthash="1005901" _msttexthash="877578" _mstvisible="3" %)2.4.6.1 Ext~=1, E3 Temperature Sensor(%%) ====
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445 (% _mstvisible="1" %)
446 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
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448 (% _mstvisible="1" %)
449 * DS18B20 temp=0x0ADD/100=27.81℃
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451 (% _msthash="315257" _msttexthash="1038479" _mstvisible="1" %)
452 The last 2 bytes of data are meaningless
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455 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
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458 * External temperature= (0xF54F-65536)/100=-27.37℃
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460 (% _mstvisible="1" %)
461 (((
462 (% _msthash="506063" _msttexthash="1038479" _mstvisible="2" %)
463 The last 2 bytes of data are meaningless
464 )))
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467 (((
468 (% _msthash="506064" _msttexthash="21185632" _mstvisible="2" %)
469 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
470 )))
471
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473 (% _mstvisible="1" %)
474 ==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
475
476 (% _msthash="315258" _msttexthash="41539368" _mstvisible="1" %)
477 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:
478
479 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:510px" %)
480 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
481 (((
482 (% _mstvisible="6" %)
483 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
484 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
485 (((
486 (% _mstvisible="6" %)
487 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
488 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
489 (((
490 (% _mstvisible="6" %)
491 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
492 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
493 (((
494 (% _mstvisible="6" %)
495 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
496 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
497 (((
498 (% _mstvisible="6" %)
499 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
500 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
501 (((
502 (% _mstvisible="6" %)
503 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
504 )))
505 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
506 (((
507 (% _mstvisible="6" %)
508 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
509 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
510 (((
511 (% _mstvisible="6" %)
512 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
513 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
514 (((
515 (% _mstvisible="6" %)
516 (((
517 (% _mstvisible="7" %)
518 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
519 )))
520
521 (% _mstvisible="6" %)
522 (((
523 (% _mstvisible="7" %)
524 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
525 )))
526 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
527 (((
528 (% _mstvisible="6" %)
529 (((
530 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
531 BAT Status &
532 )))
533
534 (% _mstvisible="6" %)
535 (((
536 (% _mstvisible="7" %)
537 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
538 )))
539 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
540 (((
541 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
542 Status & Ext
543 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
544 (((
545 (% _mstvisible="6" %)
546 (((
547 (% _mstvisible="7" %)
548 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
549 )))
550 )))
551
552 (% _mstvisible="1" %)
553 * (% _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**
554
555 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:469px" %)
556 (% _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]
557 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
558 (((
559 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
560 BAT Status
561
562 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
563 00(b): Ultra Low ( BAT <= 2.50v)
564
565 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
566 01(b): Low  (2.50v <=BAT <= 2.55v)
567
568 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
569 10(b): OK   (2.55v <= BAT <=2.65v)
570
571 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
572 11(b): Good   (BAT >= 2.65v)
573 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
574 (((
575 (% _mstvisible="6" %)
576 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
577
578 (% _mstvisible="6" %)
579
580 )))
581
582 (% _mstvisible="1" %)
583 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
584
585 (% _mstvisible="1" %)
586 [[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
587
588 (% _mstvisible="1" %)
589 * Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
590 * 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.
591 * 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)
592
593 (% _mstvisible="1" %)
594 == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
595
596 (% _msthash="315259" _msttexthash="20933341" _mstvisible="1" %)
597 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:
598
599 (% _mstvisible="1" %)
600 (((
601 (% _msthash="506065" _msttexthash="4753983" _mstvisible="2" %)
602 (% _mstvisible="3" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
603 )))
604
605 (% _mstvisible="1" %)
606 (((
607 (% _msthash="506066" _msttexthash="14696682" _mstvisible="2" %)
608 (% _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.
609 )))
610
611 (% _mstvisible="1" %)
612 (((
613 (% _msthash="506067" _msttexthash="180297" _mstvisible="2" %)
614 Add Datacake:
615 )))
616
617 (% _mstvisible="1" %)
618 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
619
620
621 (% _msthash="315260" _msttexthash="750178" _mstvisible="1" %)
622 Select default key as Access Key:
623
624 (% _mstvisible="1" %)
625 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
626
627 (% _msthash="315261" _msttexthash="2134964" _mstvisible="1" %)
628 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
629
630 (% _mstvisible="1" %)
631 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
632
633 (% _mstvisible="1" %)
634 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
635
636 (% _mstvisible="1" %)
637 == (% _msthash="350454" _msttexthash="323544" _mstvisible="3" %)2.6 Datalog Feature(%%) ==
638
639 (% _msthash="315262" _msttexthash="32283004" _mstvisible="1" %)
640 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.
641
642 (% _mstvisible="1" %)
643 === (% _msthash="886158" _msttexthash="842426" _mstvisible="3" %)2.6.1 Ways to get datalog via LoRaWAN(%%) ===
644
645 (% _msthash="315263" _msttexthash="409604" _mstvisible="1" %)
646 There are two methods:
647
648 (% _mstvisible="1" %)
649 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
650 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.
651
652 (% _mstvisible="1" %)
653 === (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
654
655 (% _msthash="315264" _msttexthash="1182285" _mstvisible="1" %)
656 LHT65N uses Unix TimeStamp format based on
657
658 (% _mstvisible="1" %)
659 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
660
661
662 (% _mstvisible="1" %)
663 (((
664 (% _msthash="506068" _msttexthash="2717234" _mstvisible="2" %)
665 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
666 )))
667
668 (% _mstvisible="1" %)
669 (((
670 (% _msthash="506069" _msttexthash="709813" _mstvisible="2" %)
671 Below is the converter example
672 )))
673
674 (% _mstvisible="1" %)
675 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
676
677 (% _msthash="315265" _msttexthash="15137317" _mstvisible="1" %)
678 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
679
680 (% _mstvisible="1" %)
681 === (% _msthash="359294" _msttexthash="332748" _mstvisible="3" %)2.6.3 Set Device Time(%%) ===
682
683 (% _mstvisible="1" %)
684 (((
685 (% _msthash="506070" _msttexthash="4521946" _mstvisible="2" %)
686 There are two ways to set device’s time:
687 )))
688
689 (% _mstvisible="1" %)
690 (((
691 (% _mstvisible="2" %)
692 (% _msthash="506071" _msttexthash="1498471" _mstvisible="4" %)**1. Through LoRaWAN MAC Command (Default settings)**
693 )))
694
695 (% _mstvisible="1" %)
696 (((
697 (% _msthash="506072" _msttexthash="2126267" _mstvisible="2" %)
698 User need to set SYNCMOD=1 to enable sync time via MAC command.
699 )))
700
701 (% _mstvisible="1" %)
702 (((
703 (% _msthash="506073" _msttexthash="54430324" _mstvisible="2" %)
704 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).
705 )))
706
707 (% _mstvisible="1" %)
708 (((
709 (% _msthash="506074" _msttexthash="92531127" _mstvisible="2" %)
710 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.
711 )))
712
713 (% _mstvisible="1" %)
714 (((
715 (% _mstvisible="2" %)
716
717 )))
718
719 (% _mstvisible="1" %)
720 (((
721 (% _mstvisible="2" %)
722 (% _msthash="506075" _msttexthash="329719" _mstvisible="4" %)**2. Manually Set Time**
723 )))
724
725 (% _mstvisible="1" %)
726 (((
727 (% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
728 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
729 )))
730
731 (% _mstvisible="1" %)
732 === (% _msthash="460759" _msttexthash="430001" _mstvisible="3" %)2.6.4 Poll sensor value(%%) ===
733
734 (% _msthash="315266" _msttexthash="4955821" _mstvisible="1" %)
735 User can poll sensor value based on timestamps from the server. Below is the downlink command.
736
737 (% _mstvisible="1" %)
738 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
739
740 (% _mstvisible="1" %)
741 (((
742 (% _msthash="506077" _msttexthash="14670916" _mstvisible="2" %)
743 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.
744 )))
745
746 (% _mstvisible="1" %)
747 (((
748 (% _mstvisible="2" %)
749 For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(% _mstvisible="3" style="display:none" %)
750 )))
751
752 (% _mstvisible="1" %)
753 (((
754 (% _msthash="506078" _msttexthash="6907459" _mstvisible="2" %)
755 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
756 )))
757
758 (% _mstvisible="1" %)
759 (((
760 (% _msthash="506079" _msttexthash="23531573" _mstvisible="2" %)
761 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
762 )))
763
764
765 (% _mstvisible="1" %)
766 === (% _msthash="650923" _msttexthash="614185" _mstvisible="3" %)2.6.5 Datalog Uplink payload(%%) ===
767
768 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
769 The Datalog poll reply uplink will use below payload format.
770
771 (% _mstvisible="1" %)
772 (((
773 (% _mstvisible="2" %)
774 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
775 )))
776
777 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:510px" %)
778 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
779 (((
780 (% _mstvisible="6" %)
781 (((
782 (% _mstvisible="7" %)
783 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
784 )))
785 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
786 (((
787 (% _mstvisible="6" %)
788 (((
789 (% _mstvisible="7" %)
790 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
791 )))
792 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
793 (((
794 (% _mstvisible="6" %)
795 (((
796 (% _mstvisible="7" %)
797 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
798 )))
799 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
800 (((
801 (% _mstvisible="6" %)
802 (((
803 (% _mstvisible="7" %)
804 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
805 )))
806 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
807 (((
808 (% _mstvisible="6" %)
809 (((
810 (% _mstvisible="7" %)
811 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
812 )))
813 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
814 (((
815 (% _mstvisible="6" %)
816 (((
817 (% _mstvisible="7" %)
818 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
819 )))
820 )))
821 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
822 (((
823 (% _mstvisible="6" %)
824 (((
825 (% _mstvisible="7" %)
826 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
827 )))
828 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
829 (((
830 (% _mstvisible="6" %)
831 (((
832 (% _mstvisible="7" %)
833 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
834 )))
835 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
836 (((
837 (% _mstvisible="6" %)
838 (((
839 (% _mstvisible="7" %)
840 (((
841 (% _mstvisible="8" %)
842 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
843 )))
844 )))
845
846 (% _mstvisible="6" %)
847 (((
848 (% _mstvisible="7" %)
849 (((
850 (% _mstvisible="8" %)
851 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
852 )))
853 )))
854 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
855 (((
856 (% _mstvisible="6" %)
857 (((
858 (% _mstvisible="7" %)
859 (((
860 (% _mstvisible="8" %)
861 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
862 )))
863 )))
864
865 (% _mstvisible="6" %)
866 (((
867 (% _mstvisible="7" %)
868 (((
869 (% _mstvisible="8" %)
870 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
871 )))
872 )))
873 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
874 (((
875 (% _mstvisible="6" %)
876 (((
877 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
878 Poll message flag & Ext
879 )))
880 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
881 (((
882 (% _mstvisible="6" %)
883 (((
884 (% _mstvisible="7" %)
885 (((
886 (% _mstvisible="8" %)
887 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
888 )))
889 )))
890
891 (% _mstvisible="6" %)
892 (((
893 (% _mstvisible="7" %)
894 (((
895 (% _mstvisible="8" %)
896
897 )))
898 )))
899 )))
900
901 (% _mstvisible="1" %)
902 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
903
904 (% _mstvisible="1" %)
905 [[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
906
907 (% _mstvisible="1" %)
908 (((
909 (% _mstvisible="2" %)
910 (((
911 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
912 Poll Message Flag: 1: This message is a poll message reply.
913 )))
914 )))
915
916 (% _mstvisible="1" %)
917 * (% _mstvisible="3" %)
918 (((
919 (% _mstvisible="4" %)
920 (((
921 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
922 Poll Message Flag is set to 1.
923 )))
924 )))
925 * (% _mstvisible="3" %)
926 (((
927 (% _mstvisible="4" %)
928 (((
929 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
930 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
931 )))
932 )))
933
934 (% _mstvisible="1" %)
935 (((
936 (% _mstvisible="2" %)
937 (((
938 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
939 For example, in US915 band, the max payload for different DR is:
940 )))
941 )))
942
943 (% _mstvisible="1" %)
944 (((
945 (% _mstvisible="2" %)
946 (((
947 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
948 a) DR0: max is 11 bytes so one entry of data
949 )))
950 )))
951
952 (% _mstvisible="1" %)
953 (((
954 (% _mstvisible="2" %)
955 (((
956 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
957 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
958 )))
959 )))
960
961 (% _mstvisible="1" %)
962 (((
963 (% _mstvisible="2" %)
964 (((
965 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
966 c) DR2: total payload includes 11 entries of data
967 )))
968 )))
969
970 (% _mstvisible="1" %)
971 (((
972 (% _mstvisible="2" %)
973 (((
974 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
975 d) DR3: total payload includes 22 entries of data.
976 )))
977 )))
978
979 (% _mstvisible="1" %)
980 (((
981 (% _mstvisible="2" %)
982 (((
983 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
984 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
985 )))
986 )))
987
988
989 (% _mstvisible="1" style="text-align: left;" %)
990 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
991
992 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
993 If LHT65N has below data inside Flash:
994
995 (% _mstvisible="1" %)
996 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
997
998 (% _mstvisible="1" %)
999 (((
1000 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
1001 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
1002 )))
1003
1004 (% _mstvisible="1" %)
1005 (((
1006 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
1007 Where : Start time: 60065F97 = time 21/1/19 04:27:03
1008 )))
1009
1010 (% _mstvisible="1" %)
1011 (((
1012 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
1013 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
1014 )))
1015
1016 (% _mstvisible="1" %)
1017 (((
1018 (% _mstvisible="2" %)
1019
1020 )))
1021
1022 (% _mstvisible="1" %)
1023 (((
1024 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
1025 LHT65N will uplink this payload.
1026 )))
1027
1028 (% _mstvisible="1" %)
1029 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
1030
1031 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
1032 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
1033
1034 Where the first 11 bytes is for the first entry:
1035
1036 7FFF089801464160065F97
1037
1038 Ext sensor data=0x7FFF/100=327.67
1039
1040 Temp=0x0898/100=22.00
1041
1042 Hum=0x0146/10=32.6
1043
1044 poll message flag & Ext=0x41,means reply data,Ext=1
1045
1046 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
1047
1048
1049 (% _mstvisible="1" style="text-align: left;" %)
1050 == (% _msthash="244504" _msttexthash="177736" _mstvisible="3" %)2.7 Alarm Mode(%%) ==
1051
1052 (% _msthash="315279" _msttexthash="16493308" _mstvisible="1" style="text-align: left;" %)
1053 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.
1054
1055 (% _mstvisible="1" %)
1056 (((
1057 (% _mstvisible="2" style="text-align: left;" %)
1058 (% _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.
1059 )))
1060
1061 (% _mstvisible="1" style="text-align: left;" %)
1062 (% _msthash="315280" _msttexthash="363480" _mstvisible="3" %)**AT COMMAND FOR ALARM MODE:**
1063
1064 (% _mstvisible="1" class="box infomessage" %)
1065 (((
1066 (% _msthash="506086" _msttexthash="2193529" _mstvisible="2" style="text-align: left;" %)
1067 (% _istranslated="1" _mstmutation="1" _mstvisible="4" %)**AT+WMOD=1**(%%): Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1068
1069 (% _msthash="506087" _msttexthash="3671265" _mstvisible="2" style="text-align: left;" %)
1070 (% _istranslated="1" _mstvisible="4" %)**AT+CITEMP=1**(%%): The interval between checking the alarm temperature. (In minutes)
1071
1072 (% _msthash="506088" _msttexthash="3310437" _mstvisible="2" style="text-align: left;" %)
1073 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP**(%%): Gets or sets the alarm range of the internal temperature sensor
1074
1075 (% _mstvisible="2" style="text-align: left;" %)
1076 (% _istranslated="1" _mstmutation="1" %)**AT+ARTEMP=？ **(%%): Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1077
1078 (% _msthash="506089" _msttexthash="3590067" _mstvisible="2" style="text-align: left;" %)
1079 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP=45,105**(%%): Set the internal temperature sensor alarm range from 45 to 105.
1080 )))
1081
1082 (% _msthash="72514" _msttexthash="253149" _mstvisible="1" style="text-align: left;" %)
1083 == (% _istranslated="1" _msthash="168103" _msttexthash="59969" _mstvisible="3" %)2.8 (%%)LED Indicator ==
1084
1085 (% _mstvisible="1" %)
1086 (((
1087 (% _msthash="197769" _msttexthash="2924142" style="text-align: left;" %)
1088 The LHT65 has a triple color LED which for easy showing different stage .
1089
1090 (% _msthash="289211" _msttexthash="3402659" style="text-align: left;" %)
1091 While user press ACT button, the LED will work as per LED status with ACT button.
1092 )))
1093
1094 (% _mstvisible="1" %)
1095 (((
1096 (% _msthash="506092" _msttexthash="521573" _mstvisible="2" style="text-align: left;" %)
1097 In a normal working state:
1098 )))
1099
1100 (% _mstvisible="1" %)
1101 * (% _mstvisible="3" %)
1102 (((
1103 (% _msthash="903005" _msttexthash="1647204" _mstvisible="4" %)
1104 For each uplink, the BLUE LED or RED LED will blink (% _msthash="903005" _msttexthash="46254" _mstvisible="3" %)once(%%).(% style="display:none" %)
1105
1106 (% _msthash="197771" _msttexthash="1202526" %)
1107 (% _msthash="903005" _msttexthash="1647204" _mstvisible="3" %)BLUE LED when external sensor is connected
1108 )))
1109 * (% _mstvisible="3" %)
1110 (((
1111 (% _msthash="903007" _msttexthash="1334749" _mstvisible="4" %)
1112 RED LED when external sensor is not connected
1113 )))
1114 * (% _mstvisible="3" %)
1115 (((
1116 (% _msthash="903008" _msttexthash="1875640" _mstvisible="4" %)
1117 For each success downlink, the PURPLE LED will blink once
1118 )))
1119
1120 (% _mstvisible="1" %)
1121 ----
1122
1123 (% _mstvisible="1" style="text-align: left;" %)
1124 == (% _msthash="112034" _msttexthash="277511" _mstvisible="3" %)2.9 installation(%%) ==
1125
1126 (% _mstvisible="1" %)
1127 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1128
1129 (% _msthash="604150" _msttexthash="563212" _mstvisible="1" style="text-align: left;" %)
1130 = (% _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(%%) =
1131
1132 (% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1133 == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(%%) E3 Temperature Probe ==
1134
1135 (% _mstvisible="1" %)
1136 [[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"]]
1137
1138
1139 (% _msthash="315354" _msttexthash="1270971" _mstvisible="1" style="text-align: left;" %)
1140 Temperature sensor with 2 meters cable long
1141
1142 (% _mstvisible="1" %)
1143 * Resolution: 0.0625 °C
1144 * ±0.5°C accuracy from -10°C to +85°C
1145 * ±2°C accuracy from -55°C to +125°C
1146 * Operating Range: -40 ~~ 125 °C
1147 * -55°C to 125°C
1148 * Working voltage 2.35v ~~ 5v
1149
1150 (% _mstvisible="1" style="text-align: left;" %)
1151 = (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) =
1152
1153 (% _mstvisible="1" %)
1154 (((
1155 (% _msthash="506246" _msttexthash="2005926" _mstvisible="2" style="text-align: left;" %)
1156 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1157 )))
1158
1159 (% _mstvisible="1" %)
1160 * (% _mstvisible="3" %)
1161 (((
1162 (% _msthash="903318" _msttexthash="635544" _mstvisible="4" %)
1163 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1164 )))
1165 * (% _mstvisible="3" %)
1166 (((
1167 (% _msthash="903319" _msttexthash="2004301" _mstvisible="4" %)
1168 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1169 )))
1170
1171 (% _mstvisible="1" %)
1172 (((
1173 (% _mstvisible="2" style="text-align: left;" %)
1174
1175 )))
1176
1177 (% _mstvisible="1" %)
1178 (((
1179 (% _msthash="506248" _msttexthash="2144051" _mstvisible="2" style="text-align: left;" %)
1180 There are two kinds of commands to configure LHT65N, they are:
1181 )))
1182
1183 (% _mstvisible="1" %)
1184 (((
1185 (% _mstvisible="2" style="text-align: left;" %)
1186 (% _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" %).
1187 )))
1188
1189 (% _mstvisible="1" %)
1190 (((
1191 (% _msthash="506250" _msttexthash="774527" _mstvisible="2" style="text-align: left;" %)
1192 These commands are to configure:
1193 )))
1194
1195 (% _mstvisible="1" %)
1196 * (% _mstvisible="3" %)
1197 (((
1198 (% _msthash="903320" _msttexthash="1503580" _mstvisible="4" %)
1199 General system settings like: uplink interval.
1200 )))
1201 * (% _mstvisible="3" %)
1202 (((
1203 (% _msthash="903321" _msttexthash="1244334" _mstvisible="4" %)
1204 LoRaWAN protocol & radio-related commands.
1205 )))
1206
1207 (% _mstvisible="1" %)
1208 (((
1209 (% _msthash="506251" _msttexthash="8343023" _mstvisible="2" style="text-align: left;" %)
1210 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]]
1211 )))
1212
1213 (% _mstvisible="1" %)
1214 (((
1215 (% _mstvisible="2" style="text-align: left;" %)
1216
1217 )))
1218
1219 (% _mstvisible="1" %)
1220 (((
1221 (% _mstvisible="2" style="text-align: left;" %)
1222 (% _mstvisible="3" style="color:#4f81bd" %)* **Commands special design for LHT65N**
1223 )))
1224
1225 (% _mstvisible="1" %)
1226 (((
1227 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1228 These commands are only valid for LHT65N, as below:
1229
1230 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1231
1232 )))
1233
1234 (% _mstvisible="1" style="text-align: left;" %)
1235 == (% _msthash="708253" _msttexthash="668772" _mstvisible="3" %)4.1 Set Transmit Interval Time(%%) ==
1236
1237 (% _msthash="315355" _msttexthash="1659268" _mstvisible="1" style="text-align: left;" %)
1238 Feature: Change LoRaWAN End Node Transmit Interval.
1239
1240 (% _mstvisible="1" style="text-align: left;" %)
1241 (% _msthash="315356" _msttexthash="241696" _mstvisible="3" %)**AT Command: AT+TDC**
1242
1243 (% _mstvisible="1" %)
1244 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1245
1246 (% _mstvisible="1" %)
1247 (((
1248 (% _mstvisible="2" style="text-align: left;" %)
1249 (% _msthash="506255" _msttexthash="381992" _mstvisible="4" %)**Downlink Command: 0x01**
1250 )))
1251
1252 (% _mstvisible="1" %)
1253 (((
1254 (% _msthash="506256" _msttexthash="1996592" _mstvisible="2" style="text-align: left;" %)
1255 Format: Command Code (0x01) followed by 3 bytes time value.
1256 )))
1257
1258 (% _mstvisible="1" %)
1259 (((
1260 (% _msthash="506257" _msttexthash="12934649" _mstvisible="2" style="text-align: left;" %)
1261 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1262 )))
1263
1264 (% _mstvisible="1" %)
1265 * (% _mstvisible="3" %)
1266 (((
1267 (% _msthash="903322" _msttexthash="3250546" _mstvisible="4" %)
1268 (% _mstvisible="5" %)**Example 1**(%%): Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1269 )))
1270 * (% _mstvisible="3" %)
1271 (((
1272 (% _msthash="903323" _msttexthash="3253315" _mstvisible="4" %)
1273 (% _mstvisible="5" %)**Example 2**(%%): Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1274 )))
1275
1276 (% _mstvisible="1" style="text-align: left;" %)
1277 == (% _msthash="614770" _msttexthash="578240" _mstvisible="3" %)4.2 Set External Sensor Mode(%%) ==
1278
1279 (% _msthash="315357" _msttexthash="975117" _mstvisible="1" style="text-align: left;" %)
1280 Feature: Change External Sensor Mode.
1281
1282 (% _mstvisible="1" style="text-align: left;" %)
1283 (% _msthash="315358" _msttexthash="248118" _mstvisible="3" %)**AT Command: AT+EXT**
1284
1285 (% _mstvisible="1" %)
1286 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1287
1288 (% _mstvisible="1" %)
1289 (((
1290 (% _mstvisible="2" style="text-align: left;" %)
1291 (% _msthash="506258" _msttexthash="387855" _mstvisible="4" %)**Downlink Command: 0xA2**
1292 )))
1293
1294 (% _mstvisible="1" %)
1295 (((
1296 (% _msthash="506259" _msttexthash="395629" _mstvisible="2" style="text-align: left;" %)
1297 Total bytes: 2 ~~ 5 bytes
1298 )))
1299
1300 (% _mstvisible="1" %)
1301 (((
1302 (% _mstvisible="2" %)
1303 (% _msthash="506260" _msttexthash="104767" _mstvisible="4" %)**Example:**
1304 )))
1305
1306 (% _mstvisible="1" %)
1307 * (% _mstvisible="3" %)
1308 (((
1309 (% _msthash="903324" _msttexthash="934973" _mstvisible="4" %)
1310 0xA201: Set external sensor type to E1
1311 )))
1312 * (% _mstvisible="3" %)
1313 (((
1314 (% _msthash="903325" _msttexthash="354770" _mstvisible="4" %)
1315 0xA209: Same as AT+EXT=9
1316 )))
1317 * (% _mstvisible="3" %)
1318 (((
1319 (% _msthash="903326" _msttexthash="639067" _mstvisible="4" %)
1320 0xA20702003c,Same as AT+SETCNT=60
1321 )))
1322
1323 (% _mstvisible="1" style="text-align: left;" %)
1324 == (% _msthash="1562483" _msttexthash="1445717" _mstvisible="3" %)4.3 Enable/Disable uplink Temperature probe ID(%%) ==
1325
1326 (% _msthash="315359" _msttexthash="2977572" _mstvisible="1" style="text-align: left;" %)
1327 Feature: If PID is enabled, device will send the temperature probe ID on:
1328
1329 (% _mstvisible="1" %)
1330 * First Packet after OTAA Join
1331 * Every 24 hours since the first packet.
1332
1333 (% _msthash="315360" _msttexthash="658814" _mstvisible="1" style="text-align: left;" %)
1334 PID is default set to disable (0)
1335
1336 (% _mstvisible="1" style="text-align: left;" %)
1337 (% _msthash="315361" _msttexthash="137488" _mstvisible="3" %)**AT Command:**
1338
1339 (% _mstvisible="1" %)
1340 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1341
1342 (% _mstvisible="1" style="text-align: left;" %)
1343 (% _msthash="315362" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1344
1345 (% _mstvisible="1" %)
1346 * 0xA800  **~-~->** AT+PID=0
1347 * 0xA801     **~-~->** AT+PID=1
1348
1349 (% _mstvisible="1" style="text-align: left;" %)
1350 == (% _msthash="266344" _msttexthash="242879" _mstvisible="3" %)4.4 Set Password(%%) ==
1351
1352 (% _msthash="315363" _msttexthash="1170728" _mstvisible="1" style="text-align: left;" %)
1353 Feature: Set device password, max 9 digits
1354
1355 (% _mstvisible="1" style="text-align: left;" %)
1356 (% _msthash="315364" _msttexthash="295009" _mstvisible="3" %)**AT Command: AT+PWORD**
1357
1358 (% _mstvisible="1" %)
1359 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1360
1361 (% _mstvisible="1" %)
1362 (((
1363 (% _mstvisible="2" style="text-align: left;" %)
1364 (% _msthash="506261" _msttexthash="298038" _mstvisible="4" %)**Downlink Command:**
1365 )))
1366
1367 (% _mstvisible="1" %)
1368 (((
1369 (% _msthash="506262" _msttexthash="974311" _mstvisible="2" style="text-align: left;" %)
1370 No downlink command for this feature.
1371 )))
1372
1373 (% _mstvisible="1" style="text-align: left;" %)
1374 == (% _msthash="306956" _msttexthash="281918" _mstvisible="3" %)4.5 Quit AT Command(%%) ==
1375
1376 (% _msthash="315365" _msttexthash="4616456" _mstvisible="1" style="text-align: left;" %)
1377 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1378
1379 (% _mstvisible="1" style="text-align: left;" %)
1380 (% _msthash="315366" _msttexthash="289120" _mstvisible="3" %)**AT Command: AT+DISAT**
1381
1382 (% _mstvisible="1" %)
1383 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1384
1385 (% _mstvisible="1" style="text-align: left;" %)
1386 (% _msthash="315367" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1387
1388 (% _msthash="315368" _msttexthash="974311" _mstvisible="1" style="text-align: left;" %)
1389 No downlink command for this feature.
1390
1391 (% _mstvisible="1" style="text-align: left;" %)
1392 == (% _msthash="362752" _msttexthash="334919" _mstvisible="3" %)4.6 Set to sleep mode(%%) ==
1393
1394 (% _msthash="315369" _msttexthash="779688" _mstvisible="1" style="text-align: left;" %)
1395 Feature: Set device to sleep mode
1396
1397 (% _mstvisible="1" style="text-align: left;" %)
1398 (% _msthash="315370" _msttexthash="289783" _mstvisible="3" %)**AT Command: AT+SLEEP**
1399
1400 (% _mstvisible="1" %)
1401 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1402
1403 (% _mstvisible="1" %)
1404 (% _msthash="315371" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1405
1406 (% _mstvisible="1" %)
1407 * There is no downlink command to set to Sleep mode.
1408
1409 (% _mstvisible="1" %)
1410 == (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) ==
1411
1412 (% _msthash="315372" _msttexthash="2565524" _mstvisible="1" %)
1413 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1414
1415 (% _mstvisible="1" %)
1416 (% _msthash="315373" _msttexthash="137488" _mstvisible="3" %)**AT Command:**
1417
1418 (% _mstvisible="1" %)
1419 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1420
1421 (% _mstvisible="1" %)
1422 (% _msthash="315374" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1423
1424 (% _msthash="315375" _msttexthash="2898571" _mstvisible="1" %)
1425 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1426
1427 (% _mstvisible="1" %)
1428 == (% _msthash="376779" _msttexthash="348712" _mstvisible="3" %)4.8 Set Time Sync Mode(%%) ==
1429
1430 (% _mstvisible="1" %)
1431 (((
1432 (% _msthash="506263" _msttexthash="11748321" _mstvisible="2" %)
1433 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1434 )))
1435
1436 (% _mstvisible="1" %)
1437 (((
1438 (% _msthash="506264" _msttexthash="6530264" _mstvisible="2" %)
1439 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.
1440 )))
1441
1442 (% _mstvisible="1" %)
1443 (((
1444 (% _mstvisible="2" %)
1445 (% _msthash="506265" _msttexthash="137488" _mstvisible="4" %)**AT Command:**
1446 )))
1447
1448 (% _mstvisible="1" %)
1449 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1450
1451 (% _mstvisible="1" %)
1452 (% _msthash="315376" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1453
1454 (% _msthash="315377" _msttexthash="479648" _mstvisible="1" %)
1455 0x28 01 ~/~/ Same As AT+SYNCMOD=1
1456
1457 (% _msthash="315378" _msttexthash="479076" _mstvisible="1" %)
1458 0x28 00 ~/~/ Same As AT+SYNCMOD=0
1459
1460 (% _mstvisible="1" %)
1461 == (% _msthash="536432" _msttexthash="502528" _mstvisible="3" %)4.9 Set Time Sync Interval(%%) ==
1462
1463 (% _msthash="315379" _msttexthash="3065777" _mstvisible="1" %)
1464 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1465
1466 (% _mstvisible="1" %)
1467 (% _msthash="315380" _msttexthash="137488" _mstvisible="3" %)**AT Command:**
1468
1469 (% _mstvisible="1" %)
1470 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1471
1472 (% _mstvisible="1" %)
1473 (% _msthash="315381" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1474
1475 (% _msthash="315382" _msttexthash="590044" _mstvisible="1" %)
1476 0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
1477
1478 (% _mstvisible="1" %)
1479 == (% _msthash="927901" _msttexthash="882570" _mstvisible="3" %)4.10 Print data entries base on page.(%%) ==
1480
1481 (% _msthash="315383" _msttexthash="3233334" _mstvisible="1" %)
1482 Feature: Print the sector data from start page to stop page (max is 416 pages).
1483
1484 (% _mstvisible="1" %)
1485 (% _msthash="315384" _msttexthash="264953" _mstvisible="3" %)**AT Command: AT+PDTA**
1486
1487 (% _mstvisible="1" %)
1488 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1489
1490 (% _mstvisible="1" %)
1491 (% _msthash="315385" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1492
1493 (% _msthash="315386" _msttexthash="799539" _mstvisible="1" %)
1494 No downlink commands for feature
1495
1496 (% _mstvisible="1" %)
1497 == (% _msthash="788762" _msttexthash="747149" _mstvisible="3" %)4.11 Print last few data entries.(%%) ==
1498
1499 (% _msthash="315387" _msttexthash="1101009" _mstvisible="1" %)
1500 Feature: Print the last few data entries
1501
1502 (% _mstvisible="1" %)
1503 (% _msthash="315388" _msttexthash="288522" _mstvisible="3" %)**AT Command: AT+PLDTA**
1504
1505 (% _mstvisible="1" %)
1506 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1507
1508 (% _mstvisible="1" %)
1509 (% _msthash="315389" _msttexthash="298038" _mstvisible="3" %)**Downlink Command:**
1510
1511 (% _msthash="315390" _msttexthash="799539" _mstvisible="1" %)
1512 No downlink commands for feature
1513
1514 (% _mstvisible="1" %)
1515 == (% _msthash="437814" _msttexthash="408057" _mstvisible="3" %)4.12 Clear Flash Record(%%) ==
1516
1517 (% _msthash="315391" _msttexthash="1609075" _mstvisible="1" %)
1518 Feature: Clear flash storage for data log feature.
1519
1520 (% _mstvisible="1" %)
1521 (% _msthash="315392" _msttexthash="311415" _mstvisible="3" %)**AT Command: AT+CLRDTA**
1522
1523 (% _mstvisible="1" %)
1524 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1525
1526 (% _mstvisible="1" %)
1527 (% _msthash="315393" _msttexthash="388193" _mstvisible="3" %)**Downlink Command: 0xA3**
1528
1529 (% _mstvisible="1" %)
1530 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1531
1532 (% _mstvisible="1" %)
1533 == (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) ==
1534
1535 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1536 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.
1537
1538
1539 (% _mstvisible="1" %)
1540 (% _msthash="315395" _msttexthash="334256" _mstvisible="3" %)**AT Command: AT+PNACKMD**
1541
1542 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1543 The default factory setting is 0
1544
1545 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1546 (% _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**
1547 (% _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
1548
1549 (% _mstvisible="1" %)
1550 (% _msthash="315397" _msttexthash="383981" _mstvisible="3" %)**Downlink Command: 0x34**
1551
1552 (% _mstvisible="1" %)
1553 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1554
1555 (% _mstvisible="1" %)
1556 = (% _msthash="568737" _msttexthash="502827" _mstvisible="3" %)5. Battery & How to replace(%%) =
1557
1558 (% _mstvisible="1" %)
1559 == (% _msthash="265486" _msttexthash="242073" _mstvisible="3" %)5.1 Battery Type(%%) ==
1560
1561 (% _msthash="315398" _msttexthash="33754799" _mstvisible="1" %)
1562 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.
1563
1564 (% _mstvisible="1" %)
1565 (((
1566 (% _mstvisible="2" %)
1567 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1568 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1569 )))
1570
1571 (% _mstvisible="1" %)
1572 (((
1573 (% _mstvisible="2" %)
1574 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1575
1576 )))
1577
1578 (% _mstvisible="1" %)
1579 == (% _msthash="353795" _msttexthash="326703" _mstvisible="3" %)5.2 Replace Battery(%%) ==
1580
1581 (% _msthash="315399" _msttexthash="11289278" _mstvisible="1" %)
1582 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.
1583
1584 (% _mstvisible="1" %)
1585 [[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"]]
1586
1587 (% _mstvisible="1" %)
1588 == (% _msthash="494650" _msttexthash="462241" _mstvisible="3" %)5.3 Battery Life Analyze(%%) ==
1589
1590 (% _mstvisible="1" %)
1591 (((
1592 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1593 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:
1594 [[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]]
1595
1596
1597 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]]
1598
1599
1600 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1601 = (% _msthash="183170" _msttexthash="163566" _mstvisible="3" %)6. FAQ(%%) =
1602
1603 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1604 == 6.1 How to use AT Command? ==
1605
1606 LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to
1607
1608 connect to LHT65 for using AT command, as below.
1609
1610 [[image:image-20220530085651-1.png]]
1611
1612
1613 Connection:
1614
1615 ✓ USB to TTL GND <~-~->GND
1616
1617 ✓ USB to TTL RXD <~-~-> D+
1618
1619 ✓ USB to TTL TXD <~-~-> A11
1620
1621 ✓ USB to TTL 3.3V <~-~-> D-
1622
1623 In PC, User needs to set serial tool(such as **putty**, SecureCRT) baud rate to **9600** to access to
1624
1625 access serial console for LHT65N. The AT commands are disable by default and need to enter
1626
1627 password (default:**123456**) to active it. Timeout to input AT Command is 5 min, after 5-minute,
1628
1629 user need to input password again. User can use AT+DISAT command to disable AT command
1630
1631 before timeout.
1632
1633 Input password and ATZ to activate LHT65N,As shown below:
1634
1635 [[image:image-20220530095701-4.png]]
1636
1637
1638 AT Command List is as below:
1639
1640 AT+<CMD>? : Help on <CMD>
1641
1642 AT+<CMD> : Run <CMD>
1643
1644 AT+<CMD>=<value> : Set the value
1645
1646 AT+<CMD>=? : Get the value
1647
1648 AT+DEBUG:Set more info output
1649
1650 ATZ: Trig a reset of the MCU
1651
1652 AT+FDR: Reset Parameters to Factory Default, Keys Reserve
1653
1654 AT+DEUI: Get or Set the Device EUI
1655
1656 AT+DADDR: Get or Set the Device Address
1657
1658 AT+APPKEY: Get or Set the Application Key
1659
1660 AT+NWKSKEY: Get or Set the Network Session Key
1661
1662 AT+APPSKEY: Get or Set the Application Session Key
1663
1664 AT+APPEUI: Get or Set the Application EUI
1665
1666 AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1667
1668 AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1669
1670 AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)
1671
1672 AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1673
1674 AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1675
1676 AT+RX2FQ: Get or Set the Rx2 window frequency
1677
1678 AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1679
1680 AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1681
1682 AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1683
1684 AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1
1685
1686 in ms
1687
1688 AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2
1689
1690 in ms
1691
1692 AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1693
1694 AT+NWKID: Get or Set the Network ID
1695
1696 AT+FCU: Get or Set the Frame Counter Uplink
1697
1698 AT+FCD: Get or Set the Frame Counter Downlink
1699
1700 AT+CLASS: Get or Set the Device Class
1701
1702 AT+JOIN: Join network
1703
1704 AT+NJS: Get the join status
1705
1706 AT+SENDB: Send hexadecimal data along with the application port
1707
1708 AT+SEND: Send text data along with the application port
1709
1710 AT+RECVB: Print last received data in binary format (with hexadecimal values)
1711
1712 AT+RECV: Print last received data in raw format
1713
1714 AT+VER: Get current image version and Frequency Band
1715
1716 AT+CFM: Get or Set the confirmation mode (0-1)
1717
1718 AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1719
1720 AT+SNR: Get the SNR of the last received packet
1721
1722 AT+RSSI: Get the RSSI of the last received packet
1723
1724 AT+TDC: Get or set the application data transmission interval in ms
1725
1726 AT+PORT: Get or set the application port
1727
1728 AT+DISAT: Disable AT commands
1729
1730 AT+PWORD: Set password, max 9 digits
1731
1732 AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1733
1734 AT+CHE: Get or Set eight channels mode,Only for US915,AU915,CN470
1735
1736 AT+PDTA: Print the sector data from start page to stop page
1737
1738 AT+PLDTA: Print the last few sets of data
1739
1740 AT+CLRDTA: Clear the storage, record position back to 1st
1741
1742 AT+SLEEP: Set sleep mode
1743
1744 AT+EXT: Get or Set external sensor model
1745
1746 AT+BAT: Get the current battery voltage in mV
1747
1748 AT+CFG: Print all configurations
1749
1750 AT+WMOD: Get or Set Work Mode
1751
1752 AT+ARTEMP: Get or set the internal Temperature sensor alarm range
1753
1754 AT+CITEMP: Get or set the internal Temperature sensor collection interval in min
1755
1756 AT+SETCNT:Set the count at present
1757
1758 AT+RJTDC: Get or set the ReJoin data transmission interval in min
1759
1760 AT+RPL: Get or set response level
1761
1762 AT+TIMESTAMP: Get or Set UNIX timestamp in second
1763
1764 AT+LEAPSEC: Get or Set Leap Second
1765
1766 AT+SYNCMOD: Get or Set time synchronization method
1767
1768 AT+SYNCTDC: Get or set time synchronization interval in day
1769
1770 AT+PID: Get or set the PID
1771
1772
1773 )))
1774
1775 (% _mstvisible="1" %)
1776 = (% _msthash="183170" _msttexthash="163566" _mstvisible="3" %)7. Order Info(%%) =
1777
1778 (% _mstvisible="1" %)
1779 (((
1780 (% _msthash="506267" _msttexthash="432432" _mstvisible="2" %)
1781 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
1782 )))
1783
1784 (% _mstvisible="1" %)
1785 (((
1786 (% _msthash="506268" _msttexthash="686946" _mstvisible="2" %)
1787 (% _mstvisible="4" style="color:#4f81bd" %)**XX **(%%): The default frequency band
1788 )))
1789
1790 (% _mstvisible="1" %)
1791 * (% _mstvisible="3" %)
1792 (((
1793 (% _msthash="903327" _msttexthash="393341" _mstvisible="4" %)
1794 (% _mstvisible="6" style="color:#4f81bd" %)** AS923**(%%): LoRaWAN AS923 band
1795 )))
1796 * (% _mstvisible="3" %)
1797 (((
1798 (% _msthash="903328" _msttexthash="394576" _mstvisible="4" %)
1799 (% _mstvisible="6" style="color:#4f81bd" %)** AU915**(%%): LoRaWAN AU915 band
1800 )))
1801 * (% _mstvisible="3" %)
1802 (((
1803 (% _msthash="903329" _msttexthash="393913" _mstvisible="4" %)
1804 (% _mstvisible="6" style="color:#4f81bd" %)** EU433**(%%): LoRaWAN EU433 band
1805 )))
1806 * (% _mstvisible="3" %)
1807 (((
1808 (% _msthash="903330" _msttexthash="399087" _mstvisible="4" %)
1809 (% _mstvisible="6" style="color:#4f81bd" %)** EU868**(%%): LoRaWAN EU868 band
1810 )))
1811 * (% _mstvisible="3" %)
1812 (((
1813 (% _msthash="903331" _msttexthash="395109" _mstvisible="4" %)
1814 (% _mstvisible="6" style="color:#4f81bd" %)** KR920**(%%): LoRaWAN KR920 band
1815 )))
1816 * (% _mstvisible="3" %)
1817 (((
1818 (% _msthash="903332" _msttexthash="400842" _mstvisible="4" %)
1819 (% _mstvisible="6" style="color:#4f81bd" %)** US915**(%%): LoRaWAN US915 band
1820 )))
1821 * (% _mstvisible="3" %)
1822 (((
1823 (% _msthash="903333" _msttexthash="396487" _mstvisible="4" %)
1824 (% _mstvisible="6" style="color:#4f81bd" %)** IN865**(%%): LoRaWAN IN865 band
1825 )))
1826 * (% _mstvisible="3" %)
1827 (((
1828 (% _msthash="903334" _msttexthash="390923" _mstvisible="4" %)
1829 (% _mstvisible="6" style="color:#4f81bd" %)** CN470**(%%): LoRaWAN CN470 band
1830 )))
1831
1832 (% _mstvisible="1" %)
1833 (((
1834 (% _msthash="506269" _msttexthash="443495" _mstvisible="2" %)
1835 (% _mstvisible="4" style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1836 )))
1837
1838 (% _mstvisible="1" %)
1839 * (% _mstvisible="3" %)
1840 (((
1841 (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
1842 (% _mstvisible="6" style="color:#4f81bd" %)**E3**(%%): External Temperature Probe
1843
1844
1845 (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
1846
1847 )))
1848
1849 (% _mstvisible="1" %)
1850 = (% _msthash="233363" _msttexthash="211237" _mstvisible="3" %)8. Packing Info(%%) =
1851
1852 (% _mstvisible="1" %)
1853 (((
1854 (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1855 (% _mstvisible="3" %)**Package Includes**(%%):
1856 )))
1857
1858 (% _mstvisible="1" %)
1859 * (% _mstvisible="3" %)
1860 (((
1861 (% _msthash="903336" _msttexthash="1033149" _mstvisible="4" %)
1862 LHT65N Temperature & Humidity Sensor x 1
1863 )))
1864 * (% _mstvisible="3" %)
1865 (((
1866 (% _msthash="903337" _msttexthash="242567" _mstvisible="4" %)
1867 Program cable x 1
1868 )))
1869 * (% _mstvisible="3" %)
1870 (((
1871 (% _msthash="903338" _msttexthash="544167" _mstvisible="4" %)
1872 Optional external sensor
1873 )))
1874
1875 (% _mstvisible="1" %)
1876 (((
1877 (% _msthash="506271" _msttexthash="403858" _mstvisible="2" %)
1878 (% _mstvisible="3" %)**Dimension and weight**(%%):
1879 )))
1880
1881 (% _mstvisible="1" %)
1882 * (% _mstvisible="3" %)
1883 (((
1884 (% _msthash="903339" _msttexthash="391807" _mstvisible="4" %)
1885 Device Size:  13.5 x 7 x 3 cm
1886 )))
1887 * (% _mstvisible="3" %)
1888 (((
1889 (% _msthash="903340" _msttexthash="285298" _mstvisible="4" %)
1890 Device Weight: 105g
1891 )))
1892 * (% _mstvisible="3" %)
1893 (((
1894 (% _msthash="903341" _msttexthash="562926" _mstvisible="4" %)
1895 Package Size / pcs : 14.5 x 8 x 5 cm
1896 )))
1897 * (% _mstvisible="3" %)
1898 (((
1899 (% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
1900 Weight / pcs : 170g
1901 )))
1902
1903 = 9. Reference =
1904
1905 * [[Datasheet, Photos, Decoder, Firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor]]
1906
1907 = 10. FCC Warning =
1908
1909 (% _mstvisible="1" %)
1910 (((
1911 (% _msthash="506272" _msttexthash="6034353" _mstvisible="2" %)
1912 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1913 )))
1914
1915 (% _mstvisible="1" %)
1916 (((
1917 (% _msthash="506273" _msttexthash="44097638" _mstvisible="2" %)
1918 (1) This device may not cause harmful interference；
1919 )))
1920
1921 (% _mstvisible="1" %)
1922 (((
1923 (% _msthash="506274" _msttexthash="7559773" _mstvisible="2" %)
1924 (2) this device must accept any interference received, including interference that may cause undesired operation.
1925 )))

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