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Last modified by Mengting Qiu on 2025/07/01 15:58
From version 71.1
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edited by Xiaoling
on 2023/06/12 10:27
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Summary

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Title
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1 -S31/S31B-LB/LS -- LoRaWAN Outdoor Temperature & Humidity Sensor User Manual
1 +S31-LB / S31B-LB LoRaWAN Outdoor Temperature & Humidity Sensor User Manual
Content
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1 -[[image:S31-B.jpg||height="388" width="779"]]
1 +(% style="text-align:center" %)
2 +[[image:S31-B.jpg]]
2 2  
3 - [[image:image-20240104161116-1.png||height="350" width="276"]] [[image:image-20240104161535-2.png||height="336" width="208"]]
4 4  
5 5  
6 +
6 6  **Table of Contents：**
7 7  
8 8  {{toc/}}
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38 38  * LoRaWAN 1.0.3 Class A
39 39  * Ultra-low power consumption
40 40  * External 3 meters SHT31 probe (For S31-LB)
41 -* Measure range -40°C ~~ 80°C
42 +* Measure range -55°C ~~ 125°C
42 42  * Temperature & Humidity alarm
43 43  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
44 44  * Support Bluetooth v5.1 and LoRaWAN remote configure
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139 139  == 1.8 Hardware Variant ==
140 140  
141 141  
142 -(% border="1" cellspacing="5" style="width:461.818px" %)
143 -|=(% style="width: 102px;background-color:#D9E2F3;color:#0070C0" %)Model|=(% style="width: 182px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Photo|=(% style="width: 176px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Probe Info
143 +(% border="1" cellspacing="5" style="width:472px" %)
144 +|=(% style="width: 102px;background-color:#D9E2F3;color:#0070C0" %)Model|=(% style="width: 190px;background-color:#D9E2F3;color:#0070C0" %)Photo|=(% style="width: 187px; background-color:#D9E2F3;color:#0070C0" %)Probe Info
144 144  |(% style="width:102px" %)(((
145 145  S31-LB
146 -)))|(% style="width:182px" %)[[image:image-20230527093214-2.jpeg]]|(% style="width:176px" %)(((
147 +)))|(% style="width:190px" %)[[image:image-20230527093214-2.jpeg]]|(% style="width:187px" %)(((
147 147  1 x SHT31 Probe
148 148  
149 149  Cable Length : 2 meters
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152 152  )))
153 153  |(% style="width:102px" %)(((
154 154  S31B-LB
155 -)))|(% style="width:182px" %)[[image:image-20230527093155-1.jpeg]]|(% style="width:176px" %)(((
156 +)))|(% style="width:190px" %)[[image:image-20230527093155-1.jpeg]]|(% style="width:187px" %)(((
156 156  1 x SHT31 Probe
157 157  
158 158  Installed in device.
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257 257  
258 258  (% style="color:#037691" %)**Frequency Band**:
259 259  
260 -0x01: EU868
261 +*0x01: EU868
261 261  
262 -0x02: US915
263 +*0x02: US915
263 263  
264 -0x03: IN865
265 +*0x03: IN865
265 265  
266 -0x04: AU915
267 +*0x04: AU915
267 267  
268 -0x05: KZ865
269 +*0x05: KZ865
269 269  
270 -0x06: RU864
271 +*0x06: RU864
271 271  
272 -0x07: AS923
273 +*0x07: AS923
273 273  
274 -0x08: AS923-1
275 +*0x08: AS923-1
275 275  
276 -0x09: AS923-2
277 +*0x09: AS923-2
277 277  
278 -0x0a: AS923-3
279 +*0x0a: AS923-3
279 279  
280 -0x0b: CN470
281 +*0x0b: CN470
281 281  
282 -0x0c: EU433
283 +*0x0c: EU433
283 283  
284 -0x0d: KR920
285 +*0x0d: KR920
285 285  
286 -0x0e: MA869
287 +*0x0e: MA869
287 287  
288 288  
289 289  (% style="color:#037691" %)**Sub-Band**:
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337 337  Ex2: 0x0B49 = 2889mV
338 338  
339 339  
341 +
340 340  ==== (% style="color:#4472c4" %)**Temperature**(%%) ====
341 341  
342 342  **Example**:
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345 345  
346 346  If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
347 347  
348 -(FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative)
350 +（FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
349 349  
350 350  
351 351  ==== (% style="color:#4472c4" %)**Humidity**(%%) ====
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748 748  |=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**
749 749  |(% style="width:154px" %)AT+5VT=?|(% style="width:196px" %)Show 5V open time.|(% style="width:157px" %)0 (default)
750 750  OK
751 -|(% style="width:154px" %)AT+5VT=1000|(% style="width:196px" %)Close after a delay of 1000 milliseconds.|(% style="width:157px" %)OK
753 +|(% style="width:154px" %)AT+5VT=500|(% style="width:196px" %)Close after a delay of 1000 milliseconds.|(% style="width:157px" %)OK
752 752  
753 753  (% style="color:blue" %)**Downlink Command: 0x07**
754 754  
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782 782  
783 783  Methods to Update Firmware:
784 784  
785 -* (Recommanded way) OTA firmware update via wireless : **[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]**
786 -* Update through UART TTL interface : **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
787 +* (Recommanded way) OTA firmware update via wireless:   [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]
788 +* Update through UART TTL interface. **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
787 787  
790 +
791 +
788 788  = 6. FAQ =
789 789  
790 790  
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