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Last modified by Mengting Qiu on 2025/07/01 15:58
From version 72.2
edited by Xiaoling
on 2024/01/04 16:22
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To version 67.2
edited by Xiaoling
on 2023/11/27 15:49
Change comment: There is no comment for this version

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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:image-20240104162020-4.png||height="348" width="269"]] (% style="display:none" %) (%%) (% style="display:none" %) (%%) [[image:image-20240104161116-1.png||height="350" width="276"]] (% style="display:none" %) (%%) (% style="display:none" %) (%%) [[image:image-20240104162104-5.png||height="333" width="169"]](% style="display:none" %) (%%) [[image:image-20240104161535-2.png||height="336" width="208"]](% style="display:none" %)
1 +(% style="text-align:center" %)
2 +[[image:S31-B.jpg]]
2 2  
3 3  
5 +
6 +
4 4  **Table of Contents：**
5 5  
6 6  {{toc/}}
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45 45  * Downlink to change configure
46 46  * 8500mAh Battery for long term use
47 47  
51 +
48 48  == 1.3 Specification ==
49 49  
50 50  
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87 87  * Sleep Mode: 5uA @ 3.3v
88 88  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
89 89  
94 +
90 90  == 1.4 Sleep mode and working mode ==
91 91  
92 92  
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114 114  )))
115 115  |(% 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.
116 116  
122 +
117 117  == 1.6 BLE connection ==
118 118  
119 119  
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137 137  == 1.8 Hardware Variant ==
138 138  
139 139  
140 -(% border="1" cellspacing="5" style="width:461.818px" %)
141 -|=(% 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
142 142  |(% style="width:102px" %)(((
143 143  S31-LB
144 -)))|(% style="width:182px" %)[[image:image-20230527093214-2.jpeg]]|(% style="width:176px" %)(((
150 +)))|(% style="width:190px" %)[[image:image-20230527093214-2.jpeg]]|(% style="width:187px" %)(((
145 145  1 x SHT31 Probe
146 146  
147 147  Cable Length : 2 meters
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150 150  )))
151 151  |(% style="width:102px" %)(((
152 152  S31B-LB
153 -)))|(% style="width:182px" %)[[image:image-20230527093155-1.jpeg]]|(% style="width:176px" %)(((
159 +)))|(% style="width:190px" %)[[image:image-20230527093155-1.jpeg]]|(% style="width:187px" %)(((
154 154  1 x SHT31 Probe
155 155  
156 156  Installed in device.
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343 343  
344 344  If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
345 345  
346 -(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）
347 347  
348 348  
349 349  ==== (% style="color:#4472c4" %)**Humidity**(%%) ====
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566 566  * 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]].
567 567  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
568 568  
575 +
569 569  == 3.2 General Commands ==
570 570  
571 571  
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613 613  * Example 1: Downlink Payload: 0100001E  ~/~/  Set Transmit Interval (TDC) = 30 seconds
614 614  * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
615 615  
623 +
616 616  === 3.3.2 Get Device Status ===
617 617  
618 618  
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696 696  
697 697  * Alarm & MOD bit is 0x7C, 0x7C >> 2 = 0x31: Means this message is the Alarm settings message.
698 698  
707 +
699 699  === 3.3.7 Set Interrupt Mode ===
700 700  
701 701  
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729 729  * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
730 730  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
731 731  
741 +
732 732  === 3.3.8 Set Power Output Duration ===
733 733  
734 734  
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757 757  * Example 1: Downlink Payload: 070000  **~-~-->**  AT+5VT=0
758 758  * Example 2: Downlink Payload: 0701F4  **~-~-->**  AT+5VT=500
759 759  
770 +
760 760  = 4. Battery & Power Consumption =
761 761  
762 762  
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783 783  * (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/]]**
784 784  * 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]]**.
785 785  
797 +
786 786  = 6. FAQ =
787 787  
788 788  
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810 810  
811 811  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
812 812  
825 +
813 813  = 8. ​Packing Info =
814 814  
815 815  
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827 827  
828 828  * Weight / pcs : g
829 829  
843 +
830 830  = 9. Support =
831 831  
832 832  
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