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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 67.2
edited by Xiaoling
on 2023/11/27 15:49
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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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53 53  * Downlink to change configure
54 54  * 8500mAh Battery for long term use
55 55  
51 +
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  
94 +
98 98  == 1.4 Sleep mode and working mode ==
99 99  
100 100  
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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  
122 +
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
146 +(% border="1" cellspacing="5" style="width:472px" %)
147 +|=(% 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" %)(((
150 +)))|(% 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" %)(((
159 +)))|(% 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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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)
352 +（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  
575 +
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  
623 +
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  
707 +
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  
741 +
740 740  === 3.3.8 Set Power Output Duration ===
741 741  
742 742  
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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  
770 +
768 768  = 4. Battery & Power Consumption =
769 769  
770 770  
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791 791  * (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/]]**
792 792  * 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]]**.
793 793  
797 +
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  
825 +
821 821  = 8. ​Packing Info =
822 822  
823 823  
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835 835  
836 836  * Weight / pcs : g
837 837  
843 +
838 838  = 9. Support =
839 839  
840 840  
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