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Last modified by Mengting Qiu on 2025/07/03 14:48
From version 147.16
edited by Xiaoling
on 2022/06/17 14:58
Change comment: There is no comment for this version
To version 148.15
edited by Xiaoling
on 2022/06/17 15:07
Change comment: There is no comment for this version

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22 22  (% _mstvisible="1" %)
23 23  (((
24 24  (% _msthash="506051" _msttexthash="24333127" _mstvisible="2" %)
25 +
26 +
27 +(% _msthash="506051" _msttexthash="24333127" _mstvisible="2" %)
25 25  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" %)**.**
26 26  )))
27 27  
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74 74  * Tri-color LED to indicate working status
75 75  * Datalog feature
76 76  
80 +
81 +
82 +
77 77  (% _mstvisible="1" %)
78 78  == (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3 Specification(%%) ==
79 79  
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202 202  The LHT65N has two working modes:
203 203  
204 204  (% _mstvisible="1" %)
205 -* **Deep Sleep Mode**: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
206 -* **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. 
211 +* (% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
212 +* (% style="color:blue" %)**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, LHT65N will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode. 
207 207  
208 208  (% _mstvisible="1" %)
209 209  (((
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241 241  Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
242 242  
243 243  (% _mstvisible="1" %)
244 -[[image:image-20220522232812-2.png||_mstalt="428467" _mstvisible="3" height="219" width="279"]]
250 +[[image:image-20220617150003-1.jpeg]]
245 245  
246 246  (% _msthash="315244" _msttexthash="3659149" _mstvisible="1" %)
247 247  User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
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362 362  * The 7th byte (EXT #): defines the external sensor model.
363 363  * 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.)
364 364  
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372 +
373 +
365 365  (% _mstvisible="1" %)
366 366  === (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) ===
367 367  
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398 398  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
399 399  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
400 400  
410 +
411 +
412 +
401 401  (% _mstvisible="1" %)
402 402  === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
403 403  
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413 413  (% _mstvisible="1" %)
414 414  * Temperature:  (0xF5C6-65536)/100=-26.18℃
415 415  
428 +
429 +
430 +
416 416  (% _mstvisible="1" %)
417 417  === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
418 418  
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422 422  (% _mstvisible="1" %)
423 423  * Humidity:    0x025C/10=60.4%
424 424  
440 +
441 +
442 +
425 425  (% _mstvisible="1" %)
426 426  === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
427 427  
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589 589  * Sync time OK: 1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server.
590 590  * Unix Time Request:1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
591 591  
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611 +
612 +
592 592  (% _mstvisible="1" %)
593 593  == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
594 594  
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651 651  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
652 652  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.
653 653  
675 +
676 +
677 +
654 654  (% _mstvisible="1" %)
655 655  === (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
656 656  
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1166 1166  * -55°C to 125°C
1167 1167  * Working voltage 2.35v ~~ 5v
1168 1168  
1169 -
1170 -
1171 1171  (% _mstvisible="1" style="text-align: left;" %)
1172 1172  = (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) =
1173 1173  
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1383 1383  * 0xA800  **~-~->** AT+PID=0
1384 1384  * 0xA801     **~-~->** AT+PID=1
1385 1385  
1386 -
1387 -
1388 1388  (% _mstvisible="1" style="text-align: left;" %)
1389 1389  == (% _msthash="266344" _msttexthash="242879" _mstvisible="3" %)4.4 Set Password(%%) ==
1390 1390  
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1456 1456  (% _mstvisible="1" %)
1457 1457  * There is no downlink command to set to Sleep mode.
1458 1458  
1459 -
1460 -
1461 1461  (% _mstvisible="1" %)
1462 1462  == (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) ==
1463 1463  
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1592 1592  (% _mstvisible="1" %)
1593 1593  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1594 1594  
1595 -
1596 -
1597 1597  (% _mstvisible="1" %)
1598 1598  == (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) ==
1599 1599  
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1617 1617  (% _mstvisible="1" %)
1618 1618  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1619 1619  
1620 -
1621 -
1622 1622  (% _mstvisible="1" %)
1623 1623  = (% _msthash="568737" _msttexthash="502827" _mstvisible="3" %)5. Battery & How to replace(%%) =
1624 1624  
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2108 2108  )))
2109 2109  * (% _mstvisible="3" %)
2110 2110  (((
2111 -(% _msthash="903337" _msttexthash="242567" _mstvisible="4" %)
2112 -Program cable x 1
2113 -)))
2114 -* (% _mstvisible="3" %)
2115 -(((
2116 2116  (% _msthash="903338" _msttexthash="544167" _mstvisible="4" %)
2117 2117  Optional external sensor
2118 2118  )))
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2147 2147  
2148 2148  * [[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"]]
2149 2149  
2159 +
2160 +
2150 2150  = (% _msthash="216320" _msttexthash="10002096" %)10. (%%)FCC Warning =
2151 2151  
2152 2152  (% _mstvisible="1" %)
image-20220617150003-1.jpeg
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