Version 181.8 by Xiaoling on 2022/06/21 10:50
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8 (% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
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17 = (% _msthash="277498" _msttexthash="253045" _mstvisible="3" %)1.  Introduction(%%) =
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20 == (% _msthash="1532895" _msttexthash="1426958" _mstvisible="3" %)1.1  What is LHT52 Temperature & Humidity Sensor(%%) ==
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27 The Dragino LHT52 Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:blue" %)**built-in Temperature & Humidity sensor** (%%)and has a USB Type-C sensor connector to connect to external sensors such as external Temperature Sensor.
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29 LHT52 (% style="color:blue" %)**senses environment temperature and humidity**(%%) and send these values via long-range wireless LoRaWAN protocol. It targets professional wireless sensor network applications such as food service, smart metering, smart cities, building automation, and so on.
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31 LHT52 supports(% style="color:blue" %)** 2 x AAA batteries **(%%)and works for a long time up to several years. Use can replace the batteries easily after they are finished.
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33 LHT52 is fully compatible with LoRaWAN v1.0.3 protocol, it can work with standard LoRaWAN gateway.
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35 LHT52 supports(% style="color:blue" %)** Datalog feature** (%%)to make sure users won’t miss sensor data. It records sensor value for every uplink. These values can be retrieved by LoRaWAN server via downlink command.
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37 LHT52 supports(% style="color:blue" %)** temperature alarm feature**(%%). It can uplink alarm in a short interval while temperature exceeds preset limits.
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39 *Battery life depends how often to send data, please see [[battery analyzer>>||anchor="H4.2A0PowerConsumptionAnalyze"]].
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51 (% _mstvisible="1" %)
52 == (% _msthash="182559" _msttexthash="163319" _mstvisible="3" %)1.2  Features(%%) ==
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55 * Wall Attachable.
56 * LoRaWAN v1.0.3 Class A protocol.
57 * Built-in Temperature & Humidity sensor
58 * Optional External Probe
59 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
60 * AT Commands to change parameters
61 * Remote configure parameters via LoRaWAN Downlink
62 * Firmware upgradable via program port
63 * Support 2 x AAA LR03 batteries.
64 * Datalog feature
65 * IP Rating: IP52
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68 (% _mstvisible="1" %)
69 == (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3  Specification(%%) ==
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77 (% _msthash="506057" _msttexthash="671437" _mstvisible="4" %)**Built-in Temperature Sensor:**
78 )))
79
80 * Resolution: 0.01 °C
81 * Accuracy Tolerance: Typ ±0.3 °C
82 * Long Term Drift: < 0.02 °C/yr
83 * Operating Range: -20 ~~ 50 °C
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91 (% _msthash="506058" _msttexthash="544453" _mstvisible="4" %)**Built-in Humidity Sensor:**
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94 * Resolution: 0.1 %RH
95 * Accuracy Tolerance: Typ ±3 %RH
96 * Long Term Drift: < 0.02 °C/yr
97 * Operating Range: 0 ~~ 99.0 %RH(no Dew)
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112 == 1.4  Power Consumption ==
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114 LHT52 (without external sensor): Idle: 5uA, Transmit: max 110mA
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116 LHT52 + External Temperature Probe (AS-01): Idle: 6uA, Transmit: max 110mA.
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118
119
120 == 1.5  Storage & Operation Temperature ==
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122 -20°C to +50°C
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126 == 1.6  Applications ==
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128 * Smart Buildings & Home Automation
129 * Logistics and Supply Chain Management
130 * Smart Metering
131 * Smart Agriculture
132 * Smart Cities
133 * Smart Factory
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138 (% _mstvisible="1" %)
139 = (% _msthash="655759" _msttexthash="618618" _mstvisible="3" %)2.  O(%%)peration Mode =
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142 == (% _msthash="462371" _msttexthash="410332" _mstvisible="3" %)2.1 How it work?(%%) ==
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147 Each LHT52 is shipped with a worldwide unique set of LoRaWAN OTAA keys. To use LHT52 in a LoRaWAN network, user needs to input the OTAA keys in LoRaWAN network server. After this, if LHT52 is under this LoRaWAN network coverage, LHT52 can join the LoRaWAN network and start to transmit sensor data. The default period for each uplink is** 20 minutes**.
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160 == (% _msthash="514384" _msttexthash="458666" _mstvisible="3" %)2.2 How to Activate LHT52?(%%) ==
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162 (% style="color:red" %)** 1.  Open enclosure from below position.**
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164 [[image:image-20220621093835-1.png]]
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167 (% style="color:red" %)** 2.  Insert 2 x AAA LR03 batteries.**
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169 [[image:image-20220621093835-2.png]]
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172 (% style="color:red" %)** 3.  Press the reset button to activate device.**
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174 [[image:image-20220621093835-3.png]]
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177 User can check [[LED Status>>||anchor="H2.8A0LEDIndicator"]] to know the working state of LHT52.
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181 (% _mstvisible="1" %)
182 == (% _msthash="882726" _msttexthash="838526" _mstvisible="3" %)2.3 Example to join LoRaWAN network(%%) ==
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184 This section shows an example for how to join the [[TheThingsNetwork>>url:https://www.thethingsnetwork.org/]] LoRaWAN IoT server. Usages with other LoRaWAN IoT servers are of similar procedure.
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187 [[image:1655775912928-657.png]]
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189 Assume the DLOS8 is already set to connect to [[TTN V3 network >>url:https://eu1.cloud.thethings.network/]]. We need to add the LHT52 device in TTN V3 portal. 
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192 (% style="color:blue" %)**Step 1**(%%):  Create a device in TTN V3 with the OTAA keys from LHT52.
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194 Each LHT52 is shipped with a sticker with the default DEV EUI as below:
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197 [[image:image-20220617150003-1.jpeg]]
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200 Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
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202 Add APP EUI in the application.
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204 choose to create the device manually.
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206 Add APP KEY and DEV EUI
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217 **Default mode OTAA**
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221 [[image:1655776241177-240.png]]
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225 (% style="color:blue" %)**Step 2**(%%):  Use ACT button to activate LHT52 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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227 [[image:image-20220621095134-4.png]]
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231 (% _mstvisible="1" %)
232 == (% _msthash="320879" _msttexthash="294970" _mstvisible="3" %)2.4  Uplink Payload(%%) ==
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234 Uplink payloads include two types: Valid Sensor Value and other status / control command.
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236 * Valid Sensor Value: Use FPORT=2
237 * Other control command: Use FPORT other than 2.
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242 (% _mstvisible="1" %)
243 === (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1  U(%%)plink FPORT~=5, Device Status ===
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245 Uplink the device configures with FPORT=5. Once LHT52 Joined the network, it will uplink this message to the server. After first uplink, LHT52 will uplink Device Status every 12 hours.
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247 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:462px" %)
248 |=(% style="width: 99px;" %)**Size (bytes)**|=(% style="width: 62px;" %)**1**|=(% style="width: 80px;" %)**2**|=(% style="width: 82px;" %)**1**|=(% style="width: 85px;" %)**1**|=(% style="width: 46px;" %)**2**
249 |(% style="width:99px" %)**Value**|(% style="width:62px" %)Sensor Model|(% style="width:80px" %)Firmware Version|(% style="width:82px" %)Frequency Band|(% style="width:85px" %)Sub-band|(% style="width:46px" %)BAT
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252 [[image:image-20220621100550-5.png]]
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254 Example Payload (FPort=5):
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256 09 01 00 01 00 0B 3A
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259 **Sensor Model**: For LHT52, this value is 0x09.
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262 **Firmware Version**: 0x0100, Means: v1.0.0 version.
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265 **Frequency Band**:
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267 *0x01: EU868
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269 *0x02: US915
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271 *0x03: IN865
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273 *0x04: AU915
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275 *0x05: KZ865
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277 *0x06: RU864
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279 *0x07: AS923
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281 *0x08: AS923-1
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283 *0x09: AS923-2
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285 *0x0a: AS923-3
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288 **Sub-Band**: value 0x00 ~~ 0x08(only for CN470, AU915,US915. Others are0x00)
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291 **BAT**: shows the battery voltage for LHT52.
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293 Ex1: 0x0B3A = 2874mV
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297 Use can also get the Device Status uplink through the downlink command:
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299 **Downlink:0x2301**
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302 [[image:image-20220621100550-6.png||height="504" width="1491"]]
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306 (% _mstvisible="1" %)
307 === (% _msthash="411411" _msttexthash="383656" _mstvisible="3" %)2.4.2 U(%%)plink FPORT~=2, Real time sensor value ===
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309 LHT52 will send this uplink after Device Status uplink once join LoRaWAN network successfully. And it will periodically send this uplink. Default interval is 20 minutes and [[can be changed>>path:#Uplink_Interval]].
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311 Uplink uses FPORT=2 and every 20 minutes send one uplink by default.
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314 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
315 (((
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317 (% _msthash="1817478" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
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321 (% _msthash="1817479" _msttexthash="4550" _mstvisible="8" %)**2**
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325 (% _msthash="1817480" _msttexthash="4550" _mstvisible="8" %)**2**
326 )))|=(% _mstvisible="4" style="width: 77px;" %)(% _mstvisible="5" %)
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329 (% _msthash="1817481" _msttexthash="4550" _mstvisible="8" %)**2**
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333 (% _msthash="1817482" _msttexthash="4459" _mstvisible="8" %)**1**
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337 (% _msthash="1817483" _msttexthash="4732" _mstvisible="8" %)**4**
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339 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
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342 (% _msthash="1817484" _msttexthash="60203" _mstvisible="8" %)**Value**
343 )))|(% _mstvisible="4" style="width:39px" %)(% _mstvisible="5" %)
344 (((
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346 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
347 )))|(% _mstvisible="4" style="width:100px" %)(% _mstvisible="5" %)
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352 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429" _mstvisible="8"]]
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354 (% _mstvisible="7" %)
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356 )))
357 )))|(% _mstvisible="4" style="width:77px" %)(% _mstvisible="5" %)
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362 [[External Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
363 )))
364 )))|(% _mstvisible="4" style="width:47px" %)(% _mstvisible="5" %)
365 (((
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367 [[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331" _mstvisible="7"]] #
368 )))|(% _mstvisible="4" style="width:51px" %)(((
369 [[Unix TimeStamp>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
370 )))
371
372
373 **Temperature:**
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375 [[image:image-20220621101526-7.png]]
376
377 Example Payload (FPort=2):
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379 08 CD 02 20 7F FF 01 61 CD 4E DD
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381 **Temperature & External Temperature:**
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383 * Example1:  0x08CD/100=22.53℃
384 * Example2:  (0xF5C6-65536)/100=-26.18℃
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386
387 **Humidity:**
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389 * Humidity:    0x0220/10=54.4%
390
391
392 **Extension #**
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394 Bytes for External Sensor:
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396 |**EXT # Value**|**External Sensor Probe**
397 |0x01|Sensor AS-01, Temperature
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401 (% _mstvisible="1" %)
402 === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3  U(%%)plink FPORT~=3, Datalog sensor value ===
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404 LHT52 stores sensor value and user can retrieve these history value via downlink command. The Datalog sensor value are sent via FPORT=3.
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406 [[image:image-20220621101659-8.png]]
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409 * Each data entry is 11 bytes, to save airtime and battery, LHT52 will send max bytes according to the current DR and Frequency bands.
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411 For example, in US915 band, the max payload for different DR is:
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413 1. DR0: max is 11 bytes so one entry of data
414 1. DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
415 1. DR2: total payload includes 11 entries of data
416 1. DR3: total payload includes 22 entries of data.
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418
419 **Notice**: LHT52 will save 178 set of history data, If device doesn’t have any data in the polling time. Device will uplink 11 bytes of 0.
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422 See more info about the [[Datalog feature>>path:#Datalog]].
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427 (% _mstvisible="1" %)
428 === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 U(%%)plink FPORT~=4, DS18B20 ID ===
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430 User can get external DS18B20 ID through the downlink command.
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432 Downlink:0x2302
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434 [[image:image-20220621101853-9.png]]
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436 Example Payload (FPort=4):
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438 28 86 63 B2 00 00 00 9F
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441 The External DS18B20 ID is 0x28 86 63 B2 00 00 00 9F
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446 (% _mstvisible="1" %)
447 === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5  D(%%)ecoder in TTN V3 ===
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450 In LoRaWAN protocol, the uplink payload is HEX format, user need to add a payload formatter/decoder in LoRaWAN Server to get human friendly string.
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453 In TTN , add formatter as below:
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455 [[image:image-20220621102026-10.png]]
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457 Please check the decoder from this link:
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459 [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LHT52/Decoder/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LHT52/Decoder/]]
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464 == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
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467 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:
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472 (% _mstvisible="3" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
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478 (% _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.
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484 Add Datacake:
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488 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
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491 (% _msthash="315260" _msttexthash="750178" _mstvisible="1" %)
492 Select default key as Access Key:
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495 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
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497 (% _msthash="315261" _msttexthash="2134964" _mstvisible="1" %)
498 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
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500 (% _mstvisible="1" %)
501 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
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503 (% _mstvisible="1" %)
504 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
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508 (% _mstvisible="1" %)
509 == (% _msthash="350454" _msttexthash="323544" _mstvisible="3" %)2.6 Datalog Feature(%%) ==
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511 (% _msthash="315262" _msttexthash="32283004" _mstvisible="1" %)
512 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.
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515 (% _mstvisible="1" %)
516 === (% _msthash="886158" _msttexthash="842426" _mstvisible="3" %)2.6.1 Ways to get datalog via LoRaWAN(%%) ===
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518 (% _msthash="315263" _msttexthash="409604" _mstvisible="1" %)
519 There are two methods:
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522 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
523 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.
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525 (% _mstvisible="1" %)
526 === (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
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528 (% _msthash="315264" _msttexthash="1182285" _mstvisible="1" %)
529 LHT65N uses Unix TimeStamp format based on
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531 (% _mstvisible="1" %)
532 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
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536 (((
537 (% _msthash="506068" _msttexthash="2717234" _mstvisible="2" %)
538 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
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541 (% _mstvisible="1" %)
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544 Below is the converter example
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548 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
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550 (% _msthash="315265" _msttexthash="15137317" _mstvisible="1" %)
551 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
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554 (% _mstvisible="1" %)
555 === (% _msthash="359294" _msttexthash="332748" _mstvisible="3" %)2.6.3 Set Device Time(%%) ===
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560 There are two ways to set device’s time:
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566 (% _msthash="506071" _msttexthash="1498471" _mstvisible="4" %)**1. Through LoRaWAN MAC Command (Default settings)**
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572 User need to set SYNCMOD=1 to enable sync time via MAC command.
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575 (% _mstvisible="1" %)
576 (((
577 (% _msthash="506073" _msttexthash="54430324" _mstvisible="2" %)
578 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).
579 )))
580
581 (% _mstvisible="1" %)
582 (((
583 (% _msthash="506074" _msttexthash="92531127" _mstvisible="2" %)
584 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.
585 )))
586
587 (% _mstvisible="1" %)
588 (((
589 (% _mstvisible="2" %)
590
591 )))
592
593 (% _mstvisible="1" %)
594 (((
595 (% _mstvisible="2" %)
596 (% _msthash="506075" _msttexthash="329719" _mstvisible="4" %)**2. Manually Set Time**
597 )))
598
599 (% _mstvisible="1" %)
600 (((
601 (% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
602 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
603
604 (% _msthash="506076" _msttexthash="7889297" _mstvisible="2" %)
605
606 )))
607
608 (% _mstvisible="1" %)
609 === (% _msthash="460759" _msttexthash="430001" _mstvisible="3" %)2.6.4 Poll sensor value(%%) ===
610
611 (% _msthash="315266" _msttexthash="4955821" _mstvisible="1" %)
612 User can poll sensor value based on timestamps from the server. Below is the downlink command.
613
614 (% _mstvisible="1" %)
615 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
616
617 (% _mstvisible="1" %)
618 (((
619 (% _msthash="506077" _msttexthash="14670916" _mstvisible="2" %)
620 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.
621 )))
622
623 (% _mstvisible="1" %)
624 (((
625 (% _mstvisible="2" %)
626 For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(% _mstvisible="3" style="display:none" %)
627 )))
628
629 (% _mstvisible="1" %)
630 (((
631 (% _msthash="506078" _msttexthash="6907459" _mstvisible="2" %)
632 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
633 )))
634
635 (% _mstvisible="1" %)
636 (((
637 (% _msthash="506079" _msttexthash="23531573" _mstvisible="2" %)
638 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
639 )))
640
641
642 (% _mstvisible="1" %)
643 === (% _msthash="650923" _msttexthash="614185" _mstvisible="3" %)2.6.5 Datalog Uplink payload(%%) ===
644
645 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
646 The Datalog poll reply uplink will use below payload format.
647
648 (% _mstvisible="1" %)
649 (((
650 (% _mstvisible="2" %)
651 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
652 )))
653
654 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
655 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 93px;" %)(% _mstvisible="5" %)
656 (((
657 (% _mstvisible="6" %)
658 (((
659 (% _mstvisible="7" %)
660 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
661 )))
662 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
663 (((
664 (% _mstvisible="6" %)
665 (((
666 (% _mstvisible="7" %)
667 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
668 )))
669 )))|=(% _mstvisible="4" style="width: 102px;" %)(% _mstvisible="5" %)
670 (((
671 (% _mstvisible="6" %)
672 (((
673 (% _mstvisible="7" %)
674 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
675 )))
676 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
677 (((
678 (% _mstvisible="6" %)
679 (((
680 (% _mstvisible="7" %)
681 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
682 )))
683 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
684 (((
685 (% _mstvisible="6" %)
686 (((
687 (% _mstvisible="7" %)
688 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
689 )))
690 )))|=(% _mstvisible="4" style="width: 48px;" %)(% _mstvisible="5" %)
691 (((
692 (% _mstvisible="6" %)
693 (((
694 (% _mstvisible="7" %)
695 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
696 )))
697 )))
698 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
699 (((
700 (% _mstvisible="6" %)
701 (((
702 (% _mstvisible="7" %)
703 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
704 )))
705 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
706 (((
707 (% _mstvisible="6" %)
708 (((
709 (% _mstvisible="7" %)
710 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
711 )))
712 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
713 (((
714 (% _mstvisible="6" %)
715 (((
716 (% _mstvisible="7" %)
717 (((
718 (% _mstvisible="8" %)
719 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
720 )))
721 )))
722
723 (% _mstvisible="6" %)
724 (((
725 (% _mstvisible="7" %)
726 (((
727 (% _mstvisible="8" %)
728 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
729 )))
730 )))
731 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
732 (((
733 (% _mstvisible="6" %)
734 (((
735 (% _mstvisible="7" %)
736 (((
737 (% _mstvisible="8" %)
738 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
739 )))
740 )))
741
742 (% _mstvisible="6" %)
743 (((
744 (% _mstvisible="7" %)
745 (((
746 (% _mstvisible="8" %)
747 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
748 )))
749 )))
750 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
751 (((
752 (% _mstvisible="6" %)
753 (((
754 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
755 Poll message flag & Ext
756 )))
757 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
758 (((
759 (% _mstvisible="6" %)
760 (((
761 (% _mstvisible="7" %)
762 (((
763 (% _mstvisible="8" %)
764 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
765 )))
766 )))
767
768 (% _mstvisible="6" %)
769 (((
770 (% _mstvisible="7" %)
771 (((
772 (% _mstvisible="8" %)
773
774 )))
775 )))
776 )))
777
778 (% _mstvisible="1" %)
779 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
780
781 (% _mstvisible="1" %)
782 [[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
783
784 (% _mstvisible="1" %)
785 (((
786 (% _mstvisible="2" %)
787 (((
788 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
789 Poll Message Flag: 1: This message is a poll message reply.
790 )))
791 )))
792
793 (% _mstvisible="1" %)
794 * (% _mstvisible="3" %)
795 (((
796 (% _mstvisible="4" %)
797 (((
798 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
799 Poll Message Flag is set to 1.
800 )))
801 )))
802 * (% _mstvisible="3" %)
803 (((
804 (% _mstvisible="4" %)
805 (((
806 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
807 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
808 )))
809 )))
810
811 (% _mstvisible="1" %)
812 (((
813 (% _mstvisible="2" %)
814 (((
815 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
816
817
818 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
819 For example, in US915 band, the max payload for different DR is:
820 )))
821 )))
822
823 (% _mstvisible="1" %)
824 (((
825 (% _mstvisible="2" %)
826 (((
827 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
828 a) DR0: max is 11 bytes so one entry of data
829 )))
830 )))
831
832 (% _mstvisible="1" %)
833 (((
834 (% _mstvisible="2" %)
835 (((
836 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
837 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
838 )))
839 )))
840
841 (% _mstvisible="1" %)
842 (((
843 (% _mstvisible="2" %)
844 (((
845 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
846 c) DR2: total payload includes 11 entries of data
847 )))
848 )))
849
850 (% _mstvisible="1" %)
851 (((
852 (% _mstvisible="2" %)
853 (((
854 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
855 d) DR3: total payload includes 22 entries of data.
856 )))
857 )))
858
859 (% _mstvisible="1" %)
860 (((
861 (% _mstvisible="2" %)
862 (((
863 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
864 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
865 )))
866 )))
867
868
869 (% _mstvisible="1" style="text-align: left;" %)
870 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
871
872 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
873 If LHT65N has below data inside Flash:
874
875 (% _mstvisible="1" %)
876 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
877
878 (% _mstvisible="1" %)
879 (((
880 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
881 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
882 )))
883
884 (% _mstvisible="1" %)
885 (((
886 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
887 Where : Start time: 60065F97 = time 21/1/19 04:27:03
888 )))
889
890 (% _mstvisible="1" %)
891 (((
892 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
893 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
894 )))
895
896 (% _mstvisible="1" %)
897 (((
898 (% _mstvisible="2" %)
899
900 )))
901
902 (% _mstvisible="1" %)
903 (((
904 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
905 LHT65N will uplink this payload.
906 )))
907
908 (% _mstvisible="1" %)
909 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
910
911 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
912 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
913
914 (% _msthash="315237" _msttexthash="1385839" %)
915 Where the first 11 bytes is for the first entry:
916
917 (% _msthash="315238" _msttexthash="274846" %)
918 7FFF089801464160065F97
919
920 (% _msthash="315239" _msttexthash="617435" %)
921 Ext sensor data=0x7FFF/100=327.67
922
923 (% _msthash="315240" _msttexthash="270543" %)
924 Temp=0x0898/100=22.00
925
926 (% _msthash="315241" _msttexthash="211783" %)
927 Hum=0x0146/10=32.6
928
929 (% _msthash="315242" _msttexthash="1569776" %)
930 poll message flag & Ext=0x41,means reply data,Ext=1
931
932 (% _msthash="315243" _msttexthash="1120509" %)
933 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
934
935
936 (% _mstvisible="1" style="text-align: left;" %)
937 == (% _msthash="244504" _msttexthash="177736" _mstvisible="3" %)2.7 Alarm Mode(%%) ==
938
939 (% _msthash="315279" _msttexthash="16493308" _mstvisible="1" style="text-align: left;" %)
940 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.
941
942 (% _mstvisible="1" %)
943 (((
944 (% _mstvisible="2" style="text-align: left;" %)
945 (% _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.
946 )))
947
948 (% _mstvisible="1" style="text-align: left;" %)
949 (% _msthash="315280" _msttexthash="363480" _mstvisible="3" %)**AT COMMAND FOR ALARM MODE:**
950
951 (% _mstvisible="1" class="box infomessage" %)
952 (((
953 (% _msthash="506086" _msttexthash="2193529" _mstvisible="2" style="text-align: left;" %)
954 (% _istranslated="1" _mstmutation="1" _mstvisible="4" %)**AT+WMOD=1**(%%):  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
955
956 (% _msthash="506087" _msttexthash="3671265" _mstvisible="2" style="text-align: left;" %)
957 (% _istranslated="1" _mstvisible="4" %)**AT+CITEMP=1**(%%):  The interval between checking the alarm temperature. (In minutes)
958
959 (% _msthash="506088" _msttexthash="3310437" _mstvisible="2" style="text-align: left;" %)
960 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP**(%%):  Gets or sets the alarm range of the internal temperature sensor
961
962 (% _mstvisible="2" style="text-align: left;" %)
963 (% _istranslated="1" _mstmutation="1" %)**AT+ARTEMP=？ **(%%):  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
964
965 (% _msthash="506089" _msttexthash="3590067" _mstvisible="2" style="text-align: left;" %)
966 (% _istranslated="1" _mstvisible="4" %)**AT+ARTEMP=45,105**(%%):  Set the internal temperature sensor alarm range from 45 to 105.
967 )))
968
969
970
971 (% _msthash="72514" _msttexthash="253149" _mstvisible="1" style="text-align: left;" %)
972 == (% _istranslated="1" _msthash="168103" _msttexthash="59969" _mstvisible="3" %)2.8 (%%)LED Indicator ==
973
974 (% _mstvisible="1" %)
975 (((
976 (% _msthash="197769" _msttexthash="2924142" style="text-align: left;" %)
977 The LHT65 has a triple color LED which for easy showing different stage .
978
979 (% _msthash="289211" _msttexthash="3402659" style="text-align: left;" %)
980 While user press ACT button, the LED will work as per LED status with ACT button.
981 )))
982
983 (% _mstvisible="1" %)
984 (((
985 (% _msthash="506092" _msttexthash="521573" _mstvisible="2" style="text-align: left;" %)
986 In a normal working state:
987 )))
988
989 (% _mstvisible="1" %)
990 * (% _mstvisible="3" %)
991 (((
992 (% _msthash="903005" _msttexthash="1647204" _mstvisible="4" %)
993 For each uplink, the BLUE LED or RED LED will blink (% _msthash="903005" _msttexthash="46254" _mstvisible="3" %)once(%%).(% style="display:none" %)
994
995 (% _msthash="197771" _msttexthash="1202526" %)
996 (% _msthash="903005" _msttexthash="1647204" _mstvisible="3" %)BLUE LED when external sensor is connected
997 )))
998 * (% _mstvisible="3" %)
999 (((
1000 (% _msthash="903007" _msttexthash="1334749" _mstvisible="4" %)
1001 RED LED when external sensor is not connected
1002 )))
1003 * (% _mstvisible="3" %)
1004 (((
1005 (% _msthash="903008" _msttexthash="1875640" _mstvisible="4" %)
1006 For each success downlink, the PURPLE LED will blink once
1007
1008
1009
1010 )))
1011
1012 (% _mstvisible="1" style="text-align: left;" %)
1013 == (% _msthash="112034" _msttexthash="277511" _mstvisible="3" %)2.9 installation(%%) ==
1014
1015 (% _mstvisible="1" %)
1016 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1017
1018
1019 (% _msthash="604150" _msttexthash="563212" _mstvisible="1" style="text-align: left;" %)
1020 = (% _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(%%) =
1021
1022 (% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1023 == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E2 Extension Cable(%%) ==
1024
1025 [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1026
1027 1m long breakout cable for LHT65N
1028
1029 [[image:image-20220619092421-3.png||height="371" width="529"]]
1030
1031
1032
1033 (% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1034 == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E3 Temperature Probe(%%) ==
1035
1036 (% _mstvisible="1" %)
1037 [[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"]]
1038
1039
1040 (% _msthash="315354" _msttexthash="1270971" _mstvisible="1" style="text-align: left;" %)
1041 Temperature sensor with 2 meters cable long
1042
1043 (% _mstvisible="1" %)
1044 * Resolution: 0.0625 °C
1045 * ±0.5°C accuracy from -10°C to +85°C
1046 * ±2°C accuracy from -55°C to +125°C
1047 * Operating Range: -40 ~~ 125 °C
1048 * -55°C to 125°C
1049 * Working voltage 2.35v ~~ 5v
1050
1051 (% _mstvisible="1" style="text-align: left;" %)
1052 = (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) =
1053
1054 (% _mstvisible="1" %)
1055 (((
1056 (% _msthash="506246" _msttexthash="2005926" _mstvisible="2" style="text-align: left;" %)
1057 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1058 )))
1059
1060 (% _mstvisible="1" %)
1061 * (% _mstvisible="3" %)
1062 (((
1063 (% _msthash="903318" _msttexthash="635544" _mstvisible="4" %)
1064 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1065 )))
1066 * (% _mstvisible="3" %)
1067 (((
1068 (% _msthash="903319" _msttexthash="3225859" _mstvisible="4" %)
1069 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1070 )))
1071
1072 (% _mstvisible="1" %)
1073 (((
1074 (% _mstvisible="2" style="text-align: left;" %)
1075
1076 )))
1077
1078 (% _mstvisible="1" %)
1079 (((
1080 (% _msthash="506248" _msttexthash="2144051" _mstvisible="2" style="text-align: left;" %)
1081 There are two kinds of commands to configure LHT65N, they are:
1082 )))
1083
1084 (% _mstvisible="1" %)
1085 (((
1086 (% _mstvisible="2" style="text-align: left;" %)
1087 (% _msthash="506249" _msttexthash="317850" _mstvisible="3" style="color:#4f81bd" %)* (% _msthash="506249" _mstmutation="1" _msttexthash="317850" _mstvisible="4" style="color:#4f81bd" %)**General Commands**(% _msthash="506249" _mstmutation="1" _msttexthash="317850" _mstvisible="3" style="color:#4f81bd" %).
1088 )))
1089
1090 (% _mstvisible="1" %)
1091 (((
1092 (% _msthash="506250" _msttexthash="774527" _mstvisible="2" style="text-align: left;" %)
1093 These commands are to configure:
1094 )))
1095
1096 (% _mstvisible="1" %)
1097 * (% _mstvisible="3" %)
1098 (((
1099 (% _msthash="903320" _msttexthash="1503580" _mstvisible="4" %)
1100 General system settings like: uplink interval.
1101 )))
1102 * (% _mstvisible="3" %)
1103 (((
1104 (% _msthash="903321" _msttexthash="1244334" _mstvisible="4" %)
1105 LoRaWAN protocol & radio-related commands.
1106 )))
1107
1108 (% _mstvisible="1" %)
1109 (((
1110 (% _msthash="506251" _msttexthash="12349142" _mstvisible="2" style="text-align: left;" %)
1111 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]]
1112 )))
1113
1114 (% _mstvisible="1" %)
1115 (((
1116 (% _mstvisible="2" style="text-align: left;" %)
1117
1118 )))
1119
1120 (% _mstvisible="1" %)
1121 (((
1122 (% _mstvisible="2" style="text-align: left;" %)
1123 (% _mstvisible="3" style="color:#4f81bd" %)* (% _msthash="506249" _mstmutation="1" _msttexthash="317850" _mstvisible="4" style="color:#4f81bd" %)**Commands special design for LHT65N**
1124 )))
1125
1126 (% _mstvisible="1" %)
1127 (((
1128 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1129 These commands are only valid for LHT65N, as below:
1130
1131
1132 (% _msthash="506254" _msttexthash="1501357" _mstvisible="2" style="text-align: left;" %)
1133
1134 )))
1135
1136 (% _mstvisible="1" style="text-align: left;" %)
1137 == (% _msthash="708253" _msttexthash="668772" _mstvisible="3" %)4.1 Set Transmit Interval Time(%%) ==
1138
1139 (% _msthash="315355" _msttexthash="1659268" _mstvisible="1" style="text-align: left;" %)
1140 Feature: Change LoRaWAN End Node Transmit Interval.
1141
1142 (% _mstvisible="1" style="text-align: left;" %)
1143 (% _msthash="315244" _msttexthash="241696" style="color:#4f81bd" %)**AT Command: AT+TDC**
1144
1145 (% _mstvisible="1" %)
1146 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1147
1148 (% _mstvisible="1" %)
1149 (((
1150 (% _mstvisible="2" style="text-align: left;" %)
1151
1152
1153 (% _mstvisible="2" style="text-align: left;" %)
1154 (% _msthash="506055" _msttexthash="381992" style="color:#4f81bd" %)**Downlink Command: 0x01**
1155 )))
1156
1157 (% _mstvisible="1" %)
1158 (((
1159 (% _msthash="506256" _msttexthash="1996592" _mstvisible="2" style="text-align: left;" %)
1160 Format: Command Code (0x01) followed by 3 bytes time value.
1161 )))
1162
1163 (% _mstvisible="1" %)
1164 (((
1165 (% _msthash="506257" _msttexthash="12934649" _mstvisible="2" style="text-align: left;" %)
1166 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1167 )))
1168
1169 (% _mstvisible="1" %)
1170 * (% _mstvisible="3" %)
1171 (((
1172 (% _msthash="903322" _msttexthash="3250546" _mstvisible="4" %)
1173 (% _mstvisible="5" %)**Example 1**(%%): Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1174 )))
1175 * (% _mstvisible="3" %)
1176 (((
1177 (% _msthash="903323" _msttexthash="3253315" _mstvisible="4" %)
1178 (% _mstvisible="5" %)**Example 2**(%%): Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1179
1180
1181 (% _msthash="903323" _msttexthash="3253315" _mstvisible="4" %)
1182
1183 )))
1184
1185 (% _mstvisible="1" style="text-align: left;" %)
1186 == (% _msthash="614770" _msttexthash="578240" _mstvisible="3" %)4.2 Set External Sensor Mode(%%) ==
1187
1188 (% _msthash="315357" _msttexthash="975117" _mstvisible="1" style="text-align: left;" %)
1189 Feature: Change External Sensor Mode.
1190
1191 (% _mstvisible="1" style="text-align: left;" %)
1192 (% _msthash="315245" _msttexthash="248118" style="color:#4f81bd" %)**AT Command: AT+EXT**
1193
1194 (% _mstvisible="1" %)
1195 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1196
1197 (% _mstvisible="1" %)
1198 (((
1199 (% _mstvisible="2" style="text-align: left;" %)
1200
1201
1202 (% _mstvisible="2" style="text-align: left;" %)
1203 (% _msthash="506056" _msttexthash="387855" style="color:#4f81bd" %)**Downlink Command: 0xA2**
1204 )))
1205
1206 (% _mstvisible="1" %)
1207 (((
1208 (% _msthash="506259" _msttexthash="395629" _mstvisible="2" style="text-align: left;" %)
1209 Total bytes: 2 ~~ 5 bytes
1210 )))
1211
1212 (% _mstvisible="1" %)
1213 (((
1214 (% _mstvisible="2" %)
1215 (% _msthash="506260" _msttexthash="104767" _mstvisible="4" %)**Example:**
1216 )))
1217
1218 (% _mstvisible="1" %)
1219 * (% _mstvisible="3" %)
1220 (((
1221 (% _msthash="903324" _msttexthash="934973" _mstvisible="4" %)
1222 0xA201: Set external sensor type to E1
1223 )))
1224 * (% _mstvisible="3" %)
1225 (((
1226 (% _msthash="903325" _msttexthash="354770" _mstvisible="4" %)
1227 0xA209: Same as AT+EXT=9
1228 )))
1229 * (% _mstvisible="3" %)
1230 (((
1231 (% _msthash="903326" _msttexthash="639067" _mstvisible="4" %)
1232 0xA20702003c,Same as AT+SETCNT=60
1233
1234
1235 (% _msthash="903326" _msttexthash="639067" _mstvisible="4" %)
1236
1237 )))
1238
1239 (% _mstvisible="1" style="text-align: left;" %)
1240 == (% _msthash="1562483" _msttexthash="1445717" _mstvisible="3" %)4.3 Enable/Disable uplink Temperature probe ID(%%) ==
1241
1242 (% _msthash="315359" _msttexthash="2977572" _mstvisible="1" style="text-align: left;" %)
1243 Feature: If PID is enabled, device will send the temperature probe ID on:
1244
1245 (% _mstvisible="1" %)
1246 * First Packet after OTAA Join
1247 * Every 24 hours since the first packet.
1248
1249 (% _msthash="315360" _msttexthash="658814" _mstvisible="1" style="text-align: left;" %)
1250 PID is default set to disable (0)
1251
1252 (% _mstvisible="1" style="text-align: left;" %)
1253 (% _msthash="315246" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1254
1255 (% _mstvisible="1" %)
1256 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1257
1258
1259 (% _mstvisible="1" style="text-align: left;" %)
1260 (% _msthash="315247" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1261
1262 (% _mstvisible="1" %)
1263 * 0xA800  **~-~->** AT+PID=0
1264 * 0xA801     **~-~->** AT+PID=1
1265
1266 (% _mstvisible="1" style="text-align: left;" %)
1267 == (% _msthash="266344" _msttexthash="242879" _mstvisible="3" %)4.4 Set Password(%%) ==
1268
1269 (% _msthash="315363" _msttexthash="1170728" _mstvisible="1" style="text-align: left;" %)
1270 Feature: Set device password, max 9 digits
1271
1272 (% _mstvisible="1" style="text-align: left;" %)
1273 (% _msthash="315248" _msttexthash="295009" style="color:#4f81bd" %)**AT Command: AT+PWORD**
1274
1275 (% _mstvisible="1" %)
1276 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1277
1278 (% _mstvisible="1" %)
1279 (((
1280 (% _mstvisible="2" style="text-align: left;" %)
1281
1282
1283 (% _mstvisible="2" style="text-align: left;" %)
1284 (% _msthash="506057" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1285 )))
1286
1287 (% _mstvisible="1" %)
1288 (((
1289 (% _msthash="506262" _msttexthash="974311" _mstvisible="2" style="text-align: left;" %)
1290 No downlink command for this feature.
1291
1292 (% _msthash="506262" _msttexthash="974311" _mstvisible="2" style="text-align: left;" %)
1293
1294 )))
1295
1296 (% _mstvisible="1" style="text-align: left;" %)
1297 == (% _msthash="306956" _msttexthash="281918" _mstvisible="3" %)4.5 Quit AT Command(%%) ==
1298
1299 (% _msthash="315365" _msttexthash="4616456" _mstvisible="1" style="text-align: left;" %)
1300 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1301
1302 (% _mstvisible="1" style="text-align: left;" %)
1303 (% _msthash="315249" _msttexthash="289120" style="color:#4f81bd" %)**AT Command: AT+DISAT**
1304
1305 (% _mstvisible="1" %)
1306 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1307
1308
1309 (% _mstvisible="1" style="text-align: left;" %)
1310 (% _msthash="315250" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1311
1312 (% _msthash="315368" _msttexthash="974311" _mstvisible="1" style="text-align: left;" %)
1313 No downlink command for this feature.
1314
1315
1316 (% _mstvisible="1" style="text-align: left;" %)
1317 == (% _msthash="362752" _msttexthash="334919" _mstvisible="3" %)4.6 Set to sleep mode(%%) ==
1318
1319 (% _msthash="315369" _msttexthash="779688" _mstvisible="1" style="text-align: left;" %)
1320 Feature: Set device to sleep mode
1321
1322 * AT+Sleep=0  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1323 * AT+Sleep=1 : Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1324
1325 (% _mstvisible="1" style="text-align: left;" %)
1326 (% _msthash="315251" _msttexthash="289783" style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1327
1328 (% _mstvisible="1" %)
1329 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1330
1331 (% _mstvisible="1" %)
1332 (% _msthash="315252" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1333
1334 (% _mstvisible="1" %)
1335 * There is no downlink command to set to Sleep mode.
1336
1337 (% _mstvisible="1" %)
1338 == (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) ==
1339
1340 (% _msthash="315372" _msttexthash="2565524" _mstvisible="1" %)
1341 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1342
1343 (% _mstvisible="1" %)
1344 (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1345
1346 (% _mstvisible="1" %)
1347 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1348
1349
1350 (% _mstvisible="1" %)
1351 (% _msthash="315254" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1352
1353 (% _msthash="315375" _msttexthash="2898571" _mstvisible="1" %)
1354 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1355
1356
1357 (% _mstvisible="1" %)
1358 == (% _msthash="376779" _msttexthash="348712" _mstvisible="3" %)4.8 Set Time Sync Mode(%%) ==
1359
1360 (% _mstvisible="1" %)
1361 (((
1362 (% _msthash="506263" _msttexthash="11748321" _mstvisible="2" %)
1363 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1364 )))
1365
1366 (% _mstvisible="1" %)
1367 (((
1368 (% _msthash="506264" _msttexthash="6530264" _mstvisible="2" %)
1369 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.
1370 )))
1371
1372 (% _mstvisible="1" %)
1373 (((
1374 (% _mstvisible="2" %)
1375 (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1376 )))
1377
1378 (% _mstvisible="1" %)
1379 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1380
1381
1382 (% _mstvisible="1" %)
1383 (% _msthash="315255" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1384
1385 (% _msthash="315377" _msttexthash="479648" _mstvisible="1" %)
1386 0x28 01 ~/~/ Same As AT+SYNCMOD=1
1387
1388 (% _msthash="315378" _msttexthash="479076" _mstvisible="1" %)
1389 0x28 00 ~/~/ Same As AT+SYNCMOD=0
1390
1391
1392 (% _mstvisible="1" %)
1393 == (% _msthash="536432" _msttexthash="502528" _mstvisible="3" %)4.9 Set Time Sync Interval(%%) ==
1394
1395 (% _msthash="315379" _msttexthash="3065777" _mstvisible="1" %)
1396 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1397
1398 (% _mstvisible="1" %)
1399 (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1400
1401 (% _mstvisible="1" %)
1402 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1403
1404
1405 (% _mstvisible="1" %)
1406 (% _msthash="315257" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1407
1408 (% _msthash="315382" _msttexthash="590044" _mstvisible="1" %)
1409 0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
1410
1411
1412 (% _mstvisible="1" %)
1413 == (% _msthash="927901" _msttexthash="882570" _mstvisible="3" %)4.10 Print data entries base on page.(%%) ==
1414
1415 (% _msthash="315383" _msttexthash="3233334" _mstvisible="1" %)
1416 Feature: Print the sector data from start page to stop page (max is 416 pages).
1417
1418 (% _mstvisible="1" %)
1419 (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
1420
1421 (% _mstvisible="1" %)
1422 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1423
1424
1425 (% _mstvisible="1" %)
1426 (% _msthash="315259" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1427
1428 (% _msthash="315386" _msttexthash="799539" _mstvisible="1" %)
1429 No downlink commands for feature
1430
1431
1432 (% _mstvisible="1" %)
1433 == (% _msthash="788762" _msttexthash="747149" _mstvisible="3" %)4.11 Print last few data entries.(%%) ==
1434
1435 (% _msthash="315387" _msttexthash="1101009" _mstvisible="1" %)
1436 Feature: Print the last few data entries
1437
1438 (% _mstvisible="1" %)
1439 (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1440
1441 (% _mstvisible="1" %)
1442 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1443
1444
1445 (% _mstvisible="1" %)
1446 (% _msthash="315261" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1447
1448 (% _msthash="315390" _msttexthash="799539" _mstvisible="1" %)
1449 No downlink commands for feature
1450
1451
1452 (% _mstvisible="1" %)
1453 == (% _msthash="437814" _msttexthash="408057" _mstvisible="3" %)4.12 Clear Flash Record(%%) ==
1454
1455 (% _msthash="315391" _msttexthash="1609075" _mstvisible="1" %)
1456 Feature: Clear flash storage for data log feature.
1457
1458 (% _mstvisible="1" %)
1459 (% _msthash="315262" _msttexthash="311415" style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1460
1461 (% _mstvisible="1" %)
1462 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1463
1464
1465 (% _mstvisible="1" %)
1466 (% _msthash="315263" _msttexthash="388193" style="color:#4f81bd" %)**Downlink Command: 0xA3**
1467
1468 (% _mstvisible="1" %)
1469 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1470
1471 (% _mstvisible="1" %)
1472 == (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) ==
1473
1474 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1475 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.
1476
1477
1478 (% _mstvisible="1" %)
1479 (% _msthash="315264" _msttexthash="334256" style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1480
1481 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1482 The default factory setting is 0
1483
1484 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1485 (% _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**
1486 (% _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
1487
1488 (% _mstvisible="1" %)
1489 (% _msthash="315265" _msttexthash="383981" style="color:#4f81bd" %)**Downlink Command: 0x34**
1490
1491 (% _mstvisible="1" %)
1492 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1493
1494 (% _mstvisible="1" %)
1495 = (% _msthash="568737" _msttexthash="502827" _mstvisible="3" %)5. Battery & How to replace(%%) =
1496
1497 (% _mstvisible="1" %)
1498 == (% _msthash="265486" _msttexthash="242073" _mstvisible="3" %)5.1 Battery Type(%%) ==
1499
1500 (% _msthash="315398" _msttexthash="33754799" _mstvisible="1" %)
1501 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.
1502
1503 (% _mstvisible="1" %)
1504 (((
1505 (% _mstvisible="2" %)
1506 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1507 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1508 )))
1509
1510 (% _mstvisible="1" %)
1511 (((
1512 (% _mstvisible="2" %)
1513 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1514
1515 )))
1516
1517 (% _mstvisible="1" %)
1518 == (% _msthash="353795" _msttexthash="326703" _mstvisible="3" %)5.2 Replace Battery(%%) ==
1519
1520 (% _msthash="315399" _msttexthash="11289278" _mstvisible="1" %)
1521 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.
1522
1523 (% _mstvisible="1" %)
1524 [[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"]]
1525
1526
1527 (% _mstvisible="1" %)
1528 == (% _msthash="494650" _msttexthash="462241" _mstvisible="3" %)5.3 Battery Life Analyze(%%) ==
1529
1530 (% _mstvisible="1" %)
1531 (((
1532 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1533 (((
1534 (% _msthash="736723" _msttexthash="35479028" %)
1535 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:
1536 [[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]]
1537 )))
1538
1539 (((
1540
1541 )))
1542
1543 (((
1544 (% _msthash="736724" _msttexthash="12045098" %)
1545 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]]
1546 )))
1547
1548
1549 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1550 = (% _msthash="183170" _msttexthash="37921" _mstvisible="3" %)6. FAQ(%%) =
1551
1552 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %)
1553 == (% _msthash="491075" _msttexthash="437463" %)6.1 How to use AT Command?(%%) ==
1554
1555 (((
1556 (% _msthash="736725" _msttexthash="9345674" %)
1557 LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to connect to LHT65 for using AT command, as below.
1558 )))
1559
1560 [[image:image-20220530085651-1.png||_mstalt="429949"]]
1561
1562
1563 (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1564
1565 (% _msthash="506062" _msttexthash="1187732" %)
1566 **✓ (% style="background-color:yellow" %)USB to TTL GND <~-~->GND(%%)**
1567
1568 (% _msthash="506063" _msttexthash="1158313" %)**✓  **(% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1569
1570 (% _msthash="506064" _msttexthash="1175629" %)**✓  **(% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1571
1572 (% _msthash="506065" _msttexthash="1164696" %)**✓  **(% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1573
1574
1575 (((
1576 (% _msthash="736726" _msttexthash="67213055" %)
1577 In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**) (%%)to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout.
1578 )))
1579
1580 (((
1581 (% _msthash="736727" _msttexthash="1907009" %)
1582 Input password and ATZ to activate LHT65N,As shown below:
1583 )))
1584
1585 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1586
1587
1588 (% _msthash="506066" _msttexthash="544869" %)
1589 AT Command List is as below:
1590
1591 (% _msthash="506067" _msttexthash="361920" %)
1592 AT+<CMD>? :  Help on <CMD>
1593
1594 (% _msthash="506068" _msttexthash="243061" %)
1595 AT+<CMD> :  Run <CMD>
1596
1597 (% _msthash="506069" _msttexthash="704197" %)
1598 AT+<CMD>=<value> :  Set the value
1599
1600 (% _msthash="506070" _msttexthash="455676" %)
1601 AT+<CMD>=? :  Get the value
1602
1603 (% _msthash="506071" _msttexthash="670553" %)
1604 AT+DEBUG:  Set more info output
1605
1606 (% _msthash="506072" _msttexthash="485888" %)
1607 ATZ:  Trig a reset of the MCU
1608
1609 (% _msthash="506073" _msttexthash="2068872" %)
1610 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1611
1612 (% _msthash="506074" _msttexthash="689169" %)
1613 AT+DEUI:  Get or Set the Device EUI
1614
1615 (% _msthash="506075" _msttexthash="960414" %)
1616 AT+DADDR:  Get or Set the Device Address
1617
1618 (% _msthash="506076" _msttexthash="1079897" %)
1619 AT+APPKEY:  Get or Set the Application Key
1620
1621 (% _msthash="506077" _msttexthash="1326143" %)
1622 AT+NWKSKEY:  Get or Set the Network Session Key
1623
1624 (% _msthash="506078" _msttexthash="1573000" %)
1625 AT+APPSKEY:  Get or Set the Application Session Key
1626
1627 (% _msthash="506079" _msttexthash="1041729" %)
1628 AT+APPEUI:  Get or Set the Application EUI
1629
1630 (% _msthash="506080" _msttexthash="2104206" %)
1631 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1632
1633 (% _msthash="506081" _msttexthash="3369288" %)
1634 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1635
1636 (% _msthash="506082" _msttexthash="1894529" %)
1637 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1638
1639 (% _msthash="506083" _msttexthash="3864172" %)
1640 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1641
1642 (% _msthash="506084" _msttexthash="1712204" %)
1643 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1644
1645 (% _msthash="506085" _msttexthash="1281202" %)
1646 AT+RX2FQ:  Get or Set the Rx2 window frequency
1647
1648 (% _msthash="506086" _msttexthash="2796781" %)
1649 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1650
1651 (% _msthash="506087" _msttexthash="3285165" %)
1652 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1653
1654 (% _msthash="506088" _msttexthash="3286179" %)
1655 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1656
1657 (% _msthash="506089" _msttexthash="4703803" %)
1658 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1659
1660 (% _msthash="506090" _msttexthash="4704999" %)
1661 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1662
1663 (% _msthash="506091" _msttexthash="1528683" %)
1664 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1665
1666 (% _msthash="506092" _msttexthash="757185" %)
1667 AT+NWKID:  Get or Set the Network ID
1668
1669 (% _msthash="506093" _msttexthash="1156597" %)
1670 AT+FCU:  Get or Set the Frame Counter Uplink
1671
1672 (% _msthash="506094" _msttexthash="1273987" %)
1673 AT+FCD:  Get or Set the Frame Counter Downlink
1674
1675 (% _msthash="506095" _msttexthash="859222" %)
1676 AT+CLASS:  Get or Set the Device Class
1677
1678 (% _msthash="506096" _msttexthash="384852" %)
1679 AT+JOIN:  Join network
1680
1681 (% _msthash="506097" _msttexthash="548626" %)
1682 AT+NJS:  Get the join status
1683
1684 (% _msthash="506098" _msttexthash="2546206" %)
1685 AT+SENDB:  Send hexadecimal data along with the application port
1686
1687 (% _msthash="506099" _msttexthash="1932307" %)
1688 AT+SEND:  Send text data along with the application port
1689
1690 (% _msthash="506100" _msttexthash="3560557" %)
1691 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1692
1693 (% _msthash="506101" _msttexthash="1429701" %)
1694 AT+RECV:  Print last received data in raw format
1695
1696 (% _msthash="506102" _msttexthash="1735981" %)
1697 AT+VER:  Get current image version and Frequency Band
1698
1699 (% _msthash="506103" _msttexthash="1189474" %)
1700 AT+CFM:  Get or Set the confirmation mode (0-1)
1701
1702 (% _msthash="506104" _msttexthash="1718210" %)
1703 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1704
1705 (% _msthash="506105" _msttexthash="1339403" %)
1706 AT+SNR:  Get the SNR of the last received packet
1707
1708 (% _msthash="506106" _msttexthash="1452009" %)
1709 AT+RSSI:  Get the RSSI of the last received packet
1710
1711 (% _msthash="506107" _msttexthash="2768142" %)
1712 AT+TDC:  Get or set the application data transmission interval in ms
1713
1714 (% _msthash="506108" _msttexthash="1083914" %)
1715 AT+PORT:  Get or set the application port
1716
1717 (% _msthash="506109" _msttexthash="622440" %)
1718 AT+DISAT:  Disable AT commands
1719
1720 (% _msthash="506110" _msttexthash="868361" %)
1721 AT+PWORD:  Set password, max 9 digits
1722
1723 (% _msthash="506111" _msttexthash="2210299" %)
1724 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1725
1726 (% _msthash="506112" _msttexthash="2113462" %)
1727 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1728
1729 (% _msthash="506113" _msttexthash="2087423" %)
1730 AT+PDTA:  Print the sector data from start page to stop page
1731
1732 (% _msthash="506114" _msttexthash="1063127" %)
1733 AT+PLDTA:  Print the last few sets of data
1734
1735 (% _msthash="506115" _msttexthash="1999426" %)
1736 AT+CLRDTA:  Clear the storage, record position back to 1st
1737
1738 (% _msthash="506116" _msttexthash="442130" %)
1739 AT+SLEEP:  Set sleep mode
1740
1741 (% _msthash="506117" _msttexthash="1080222" %)
1742 AT+EXT:  Get or Set external sensor model
1743
1744 (% _msthash="506118" _msttexthash="1309490" %)
1745 AT+BAT:  Get the current battery voltage in mV
1746
1747 (% _msthash="506119" _msttexthash="813891" %)
1748 AT+CFG:  Print all configurations
1749
1750 (% _msthash="506120" _msttexthash="551707" %)
1751 AT+WMOD:  Get or Set Work Mode
1752
1753 (% _msthash="506121" _msttexthash="2631499" %)
1754 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1755
1756 (% _msthash="506122" _msttexthash="3907150" %)
1757 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1758
1759 (% _msthash="506123" _msttexthash="854620" %)
1760 AT+SETCNT:  Set the count at present
1761
1762 (% _msthash="506124" _msttexthash="2554877" %)
1763 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1764
1765 (% _msthash="506125" _msttexthash="771849" %)
1766 AT+RPL:  Get or set response level
1767
1768 (% _msthash="506126" _msttexthash="1484314" %)
1769 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1770
1771 (% _msthash="506127" _msttexthash="741728" %)
1772 AT+LEAPSEC:  Get or Set Leap Second
1773
1774 (% _msthash="506128" _msttexthash="1694017" %)
1775 AT+SYNCMOD:  Get or Set time synchronization method
1776
1777 (% _msthash="506129" _msttexthash="2235948" %)
1778 AT+SYNCTDC:  Get or set time synchronization interval in day
1779
1780 (% _msthash="506130" _msttexthash="425542" %)
1781 AT+PID:  Get or set the PID
1782
1783
1784 == (% _msthash="1616654" _msttexthash="1555359" %)6.2 Where to use AT commands and Downlink commands(%%) ==
1785
1786 (% _msthash="506131" _msttexthash="14585714" %)
1787 AT commands：
1788
1789 [[image:image-20220620153708-1.png||height="603" width="723"]]
1790
1791 (% _msthash="506132" _msttexthash="337922" %)
1792 Downlink commands:
1793
1794
1795 (% _msthash="506133" _msttexthash="33046" %)
1796 **TTN:**
1797
1798 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1799
1800
1801 (% _msthash="506134" _msttexthash="11113791" %)
1802 **Helium：**
1803
1804 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1805
1806
1807 (% _msthash="506135" _msttexthash="4159844" %)
1808 **Chirpstack:The downlink window will not be displayed until the network is accessed**
1809
1810 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1811
1812 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1813
1814
1815 (% _msthash="506136" _msttexthash="39286" %)
1816 **Aws:**
1817
1818 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1819
1820
1821 == (% _msthash="1220570" _msttexthash="33199257" %)6.3 How to change the uplink interval？(%%) ==
1822
1823 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/||_msthash="506137" _msttexthash="5712018"]]
1824
1825
1826 (% _msthash="536757" _msttexthash="1874951" %)
1827 == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1828
1829 [[image:image-20220615153355-1.png]]
1830
1831 [[image:image-20220620154900-5.jpeg||height="427" width="570"]]
1832
1833 (% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1834
1835 (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
1836
1837 (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1838
1839
1840 To switch from download mode to command mode, press reset key
1841
1842
1843 (((
1844 (% _msthash="736728" _msttexthash="67213055" %)
1845 (((
1846 In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600** (%%)to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:(% style="color:red" %)**123456**)(%%) to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout.
1847 )))
1848 )))
1849
1850 (((
1851 (% _msthash="736729" _msttexthash="1907009" %)
1852 Input password and ATZ to activate LHT65N,As shown below:
1853
1854 [[image:image-20220615154519-3.png||height="672" width="807"]]
1855
1856
1857 )))
1858
1859 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1860
1861
1862 [[image:image-20220615153355-1.png]]
1863
1864 (% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1865
1866 (% style="background-color:yellow" %)**4  < - ->  3.3V  < - ->  Blue**
1867
1868 (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
1869
1870 (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1871
1872 [[image:image-20220620160241-6.jpeg||height="428" width="571"]]
1873
1874 Press reset after connecting the 4boot cable to enter the download mode.
1875
1876 [[image:image-20220620160516-7.png||height="435" width="435"]]
1877
1878
1879 (% _mstmutation="1" %)**Step1**(%%): Install TremoProgrammer  first.
1880
1881 [[image:image-20220615170542-5.png]]
1882
1883
1884 (% _msthash="506146" _msttexthash="52173160" %)
1885 (% _istranslated="1" %)**Step2**(%%)：Download the LHT65N image files.
1886
1887
1888 (% _msthash="506147" _msttexthash="188083584" %)
1889 (% _istranslated="1" %)**Step3：**(%%)Select the serial port and baud rate of the device and the firmware to be upgraded.
1890
1891 [[image:image-20220615171334-6.png]]
1892
1893
1894 (% _istranslated="1" _mstmutation="1" %)**Step4：**(%%)Click Start
1895
1896 [[image:image-20220620160723-8.png]]
1897 )))
1898
1899 (% _mstvisible="1" %)
1900 = (% _msthash="183170" _msttexthash="13740740" _mstvisible="3" %)7. (%%)Order Info =
1901
1902 (% _mstvisible="1" %)
1903 (((
1904 (% _msthash="506267" _msttexthash="432432" _mstvisible="2" %)
1905 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
1906 )))
1907
1908 (% _mstvisible="1" %)
1909 (((
1910 (% _msthash="506268" _msttexthash="686946" _mstvisible="2" %)
1911 (% _mstvisible="4" style="color:#4f81bd" %)**XX **(%%): The default frequency band
1912 )))
1913
1914 (% _mstvisible="1" %)
1915 * (% _mstvisible="3" %)
1916 (((
1917 (% _msthash="903327" _msttexthash="393341" _mstvisible="4" %)
1918 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1919 )))
1920 * (% _mstvisible="3" %)
1921 (((
1922 (% _msthash="903328" _msttexthash="394576" _mstvisible="4" %)
1923 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1924 )))
1925 * (% _mstvisible="3" %)
1926 (((
1927 (% _msthash="903329" _msttexthash="393913" _mstvisible="4" %)
1928 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1929 )))
1930 * (% _mstvisible="3" %)
1931 (((
1932 (% _msthash="903330" _msttexthash="399087" _mstvisible="4" %)
1933 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1934 )))
1935 * (% _mstvisible="3" %)
1936 (((
1937 (% _msthash="903331" _msttexthash="395109" _mstvisible="4" %)
1938 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1939 )))
1940 * (% _mstvisible="3" %)
1941 (((
1942 (% _msthash="903332" _msttexthash="400842" _mstvisible="4" %)
1943 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1944 )))
1945 * (% _mstvisible="3" %)
1946 (((
1947 (% _msthash="903333" _msttexthash="396487" _mstvisible="4" %)
1948 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1949 )))
1950 * (% _mstvisible="3" %)
1951 (((
1952 (% _msthash="903334" _msttexthash="390923" _mstvisible="4" %)
1953 (% _mstvisible="6" style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1954 )))
1955
1956 (% _mstvisible="1" %)
1957 (((
1958 (% _msthash="506269" _msttexthash="443495" _mstvisible="2" %)
1959 (% _mstvisible="4" style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1960 )))
1961
1962 (% _mstvisible="1" %)
1963 * (% _mstvisible="3" %)
1964 (((
1965 (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
1966 (% style="color:red" %)**E3**(%%): External Temperature Probe
1967
1968
1969 )))
1970
1971 (% _mstvisible="1" %)
1972 = (% _msthash="233363" _msttexthash="13823550" _mstvisible="3" %)8. (%%)Packing Info =
1973
1974 (% _mstvisible="1" %)
1975 (((
1976 (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1977
1978
1979 (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %)
1980 (% _mstvisible="3" %)**Package Includes**(%%):
1981 )))
1982
1983 (% _mstvisible="1" %)
1984 * (% _mstvisible="3" %)
1985 (((
1986 (% _msthash="903336" _msttexthash="1033149" _mstvisible="4" %)
1987 LHT65N Temperature & Humidity Sensor x 1
1988 )))
1989 * (% _mstvisible="3" %)
1990 (((
1991 (% _msthash="903338" _msttexthash="544167" _mstvisible="4" %)
1992 Optional external sensor
1993 )))
1994
1995 (% _mstvisible="1" %)
1996 (((
1997 (% _msthash="506271" _msttexthash="403858" _mstvisible="2" %)
1998 (% _mstvisible="3" %)**Dimension and weight**(%%):
1999 )))
2000
2001 (% _mstvisible="1" %)
2002 * (% _mstvisible="3" %)
2003 (((
2004 (% _msthash="903339" _msttexthash="391807" _mstvisible="4" %)
2005 Device Size:  10 x 10 x 3.5 cm
2006 )))
2007 * (% _mstvisible="3" %)
2008 (((
2009 (% _msthash="903340" _msttexthash="285298" _mstvisible="4" %)
2010 Device Weight: 120.5g
2011 )))
2012
2013 (% _mstvisible="3" %)
2014 (((
2015
2016 )))
2017
2018 = (% _msthash="184782" _msttexthash="16007771" %)9. Reference material(%%) =
2019
2020 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor||_msthash="504975" _msttexthash="51420512"]]
2021
2022 = (% _msthash="216320" _msttexthash="10002096" %)10. (%%)FCC Warning =
2023
2024 (% _mstvisible="1" %)
2025 (((
2026 (% _msthash="506272" _msttexthash="6034353" _mstvisible="2" %)
2027 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
2028 )))
2029
2030 (% _mstvisible="1" %)
2031 (((
2032 (% _msthash="506273" _msttexthash="44097638" _mstvisible="2" %)
2033 (1) This device may not cause harmful interference；
2034 )))
2035
2036 (% _mstvisible="1" %)
2037 (((
2038 (% _msthash="506274" _msttexthash="7559773" _mstvisible="2" %)
2039 (2) this device must accept any interference received, including interference that may cause undesired operation.
2040 )))

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