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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 63.3
edited by Xiaoling
on 2023/06/12 10:30
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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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53 53  * Downlink to change configure
54 54  * 8500mAh Battery for long term use
55 55  
51 +
52 +
56 56  == 1.3 Specification ==
57 57  
58 58  
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95 95  * Sleep Mode: 5uA @ 3.3v
96 96  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
97 97  
95 +
96 +
98 98  == 1.4 Sleep mode and working mode ==
99 99  
100 100  
... ... @@ -122,6 +122,8 @@
122 122  )))
123 123  |(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
124 124  
124 +
125 +
125 125  == 1.6 BLE connection ==
126 126  
127 127  
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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
149 +(% border="1" cellspacing="5" style="width:472px" %)
150 +|=(% 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" %)(((
153 +)))|(% 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" %)(((
162 +)))|(% 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
267 +*0x01: EU868
267 267  
268 -0x02: US915
269 +*0x02: US915
269 269  
270 -0x03: IN865
271 +*0x03: IN865
271 271  
272 -0x04: AU915
273 +*0x04: AU915
273 273  
274 -0x05: KZ865
275 +*0x05: KZ865
275 275  
276 -0x06: RU864
277 +*0x06: RU864
277 277  
278 -0x07: AS923
279 +*0x07: AS923
279 279  
280 -0x08: AS923-1
281 +*0x08: AS923-1
281 281  
282 -0x09: AS923-2
283 +*0x09: AS923-2
283 283  
284 -0x0a: AS923-3
285 +*0x0a: AS923-3
285 285  
286 -0x0b: CN470
287 +*0x0b: CN470
287 287  
288 -0x0c: EU433
289 +*0x0c: EU433
289 289  
290 -0x0d: KR920
291 +*0x0d: KR920
291 291  
292 -0x0e: MA869
293 +*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  
347 +
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)
356 +（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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574 574  * AT Command via UART Connection : See [[UART Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
575 575  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
576 576  
579 +
580 +
577 577  == 3.2 General Commands ==
578 578  
579 579  
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621 621  * Example 1: Downlink Payload: 0100001E  ~/~/  Set Transmit Interval (TDC) = 30 seconds
622 622  * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
623 623  
628 +
629 +
624 624  === 3.3.2 Get Device Status ===
625 625  
626 626  
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704 704  
705 705  * Alarm & MOD bit is 0x7C, 0x7C >> 2 = 0x31: Means this message is the Alarm settings message.
706 706  
713 +
714 +
707 707  === 3.3.7 Set Interrupt Mode ===
708 708  
709 709  
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737 737  * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
738 738  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
739 739  
748 +
749 +
740 740  === 3.3.8 Set Power Output Duration ===
741 741  
742 742  
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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
767 +|(% 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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765 765  * Example 1: Downlink Payload: 070000  **~-~-->**  AT+5VT=0
766 766  * Example 2: Downlink Payload: 0701F4  **~-~-->**  AT+5VT=500
767 767  
778 +
779 +
768 768  = 4. Battery & Power Consumption =
769 769  
770 770  
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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]]**.
803 +* (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/]]
804 +* 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  
806 +
807 +
794 794  = 6. FAQ =
795 795  
796 796  
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818 818  
819 819  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
820 820  
835 +
836 +
821 821  = 8. ​Packing Info =
822 822  
823 823  
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835 835  
836 836  * Weight / pcs : g
837 837  
854 +
855 +
838 838  = 9. Support =
839 839  
840 840  
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