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Last modified by Mengting Qiu on 2025/07/01 15:58
From version 73.2
edited by Xiaoling
on 2024/01/04 16:28
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To version 63.2
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 - (% style="display:none" %) (%%) (% style="display:none" %) (%%) (% style="display:none" %)
2 -
3 3  (% style="text-align:center" %)
4 -[[image:image-20240104162316-6.png]]
2 +[[image:S31-B.jpg]]
5 5  
6 6  
7 7  
8 8  
9 -
10 -
11 -
12 12  **Table of Contents：**
13 13  
14 14  {{toc/}}
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44 44  * LoRaWAN 1.0.3 Class A
45 45  * Ultra-low power consumption
46 46  * External 3 meters SHT31 probe (For S31-LB)
47 -* Measure range -40°C ~~ 80°C
42 +* Measure range -55°C ~~ 125°C
48 48  * Temperature & Humidity alarm
49 49  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
50 50  * Support Bluetooth v5.1 and LoRaWAN remote configure
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145 145  == 1.8 Hardware Variant ==
146 146  
147 147  
148 -(% border="1" cellspacing="5" style="width:461.818px" %)
149 -|=(% 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
150 150  |(% style="width:102px" %)(((
151 151  S31-LB
152 -)))|(% style="width:182px" %)[[image:image-20230527093214-2.jpeg]]|(% style="width:176px" %)(((
147 +)))|(% style="width:190px" %)[[image:image-20230527093214-2.jpeg]]|(% style="width:187px" %)(((
153 153  1 x SHT31 Probe
154 154  
155 155  Cable Length : 2 meters
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158 158  )))
159 159  |(% style="width:102px" %)(((
160 160  S31B-LB
161 -)))|(% style="width:182px" %)[[image:image-20230527093155-1.jpeg]]|(% style="width:176px" %)(((
156 +)))|(% style="width:190px" %)[[image:image-20230527093155-1.jpeg]]|(% style="width:187px" %)(((
162 162  1 x SHT31 Probe
163 163  
164 164  Installed in device.
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263 263  
264 264  (% style="color:#037691" %)**Frequency Band**:
265 265  
266 -0x01: EU868
261 +*0x01: EU868
267 267  
268 -0x02: US915
263 +*0x02: US915
269 269  
270 -0x03: IN865
265 +*0x03: IN865
271 271  
272 -0x04: AU915
267 +*0x04: AU915
273 273  
274 -0x05: KZ865
269 +*0x05: KZ865
275 275  
276 -0x06: RU864
271 +*0x06: RU864
277 277  
278 -0x07: AS923
273 +*0x07: AS923
279 279  
280 -0x08: AS923-1
275 +*0x08: AS923-1
281 281  
282 -0x09: AS923-2
277 +*0x09: AS923-2
283 283  
284 -0x0a: AS923-3
279 +*0x0a: AS923-3
285 285  
286 -0x0b: CN470
281 +*0x0b: CN470
287 287  
288 -0x0c: EU433
283 +*0x0c: EU433
289 289  
290 -0x0d: KR920
285 +*0x0d: KR920
291 291  
292 -0x0e: MA869
287 +*0x0e: MA869
293 293  
294 294  
295 295  (% style="color:#037691" %)**Sub-Band**:
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343 343  Ex2: 0x0B49 = 2889mV
344 344  
345 345  
341 +
346 346  ==== (% style="color:#4472c4" %)**Temperature**(%%) ====
347 347  
348 348  **Example**:
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351 351  
352 352  If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
353 353  
354 -(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）
355 355  
356 356  
357 357  ==== (% style="color:#4472c4" %)**Humidity**(%%) ====
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754 754  |=(% 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**
755 755  |(% style="width:154px" %)AT+5VT=?|(% style="width:196px" %)Show 5V open time.|(% style="width:157px" %)0 (default)
756 756  OK
757 -|(% 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
758 758  
759 759  (% style="color:blue" %)**Downlink Command: 0x07**
760 760  
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788 788  
789 789  Methods to Update Firmware:
790 790  
791 -* (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/]]**
792 -* 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]]**.
793 793  
790 +
791 +
794 794  = 6. FAQ =
795 795  
796 796  
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