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Last modified by Mengting Qiu on 2025/07/01 15:58
From version 65.1
edited by Bei Jinggeng
on 2023/08/02 10:33
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To version 73.3
edited by Xiaoling
on 2024/01/04 16:30
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1 -S31-LB / S31B-LB LoRaWAN Outdoor Temperature & Humidity Sensor User Manual
1 +S31/S31B-LB/LS -- LoRaWAN Outdoor Temperature & Humidity Sensor User Manual
Author
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1 -XWiki.Bei
1 +XWiki.Xiaoling
Content
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1 + (% style="display:none" %) (%%) (% style="display:none" %) (%%) (% style="display:none" %)
2 +
1 1  (% style="text-align:center" %)
2 -[[image:S31-B.jpg]]
4 +[[image:image-20240104162316-6.png]]
3 3  
4 4  
5 5  
6 6  
9 +
10 +
11 +
7 7  **Table of Contents：**
8 8  
9 9  {{toc/}}
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15 15  
16 16  = 1. Introduction =
17 17  
18 -== 1.1 What is S31x-LB LoRaWAN Temperature & Humidity Sensor ==
23 +== 1.1 What is S31x-LB/LS LoRaWAN Temperature & Humidity Sensor ==
19 19  
20 20  
21 -The Dragino S31x-LB is a (% style="color:blue" %)**LoRaWAN Temperature and Humidity Sensor**(%%) for Internet of Things solution. It is used to measure the (% style="color:blue" %)**surrounding environment temperature and relative air humidity precisely**(%%), and then upload to IoT server via LoRaWAN wireless protocol.
26 +The Dragino S31x-LB/LS is a (% style="color:blue" %)**LoRaWAN Temperature and Humidity Sensor**(%%) for Internet of Things solution. It is used to measure the (% style="color:blue" %)**surrounding environment temperature and relative air humidity precisely**(%%), and then upload to IoT server via LoRaWAN wireless protocol.
22 22  
23 -The temperature & humidity sensor used in S31x-LB is SHT31, which is fully calibrated, linearized, and temperature compensated digital output from Sensirion, it provides a strong reliability and long-term stability. The SHT31 is fixed in a (% style="color:blue" %)**waterproof anti-condensation casing**(%%) for long term use.
28 +The temperature & humidity sensor used in S31x-LB/LS is SHT31, which is fully calibrated, linearized, and temperature compensated digital output from Sensirion, it provides a strong reliability and long-term stability. The SHT31 is fixed in a (% style="color:blue" %)**waterproof anti-condensation casing**(%%) for long term use.
24 24  
25 -The LoRa wireless technology used in S31x-LB allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
30 +The LoRa wireless technology used in S31x-LB/LS allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
26 26  
27 -S31x-LB supports (% style="color:blue" %)**Temperature & Humdity alarm feature**(%%), user can set temperature alarm for instant notice. S31x-LB supports Datalog feature, it can save the data when there is no LoRaWAN network and uplink when network recover.
32 +S31x-LB/LS supports (% style="color:blue" %)**Temperature & Humdity alarm feature**(%%), user can set temperature alarm for instant notice. S31x-LB/LS supports Datalog feature, it can save the data when there is no LoRaWAN network and uplink when network recover.
28 28  
29 -S31x-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
34 +S31x-LB/LS (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
30 30  
31 -S31x-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
36 +S31x-LB/LS is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%) or (% style="color:blue" %)**solar powered + li-on battery**(%%) it is designed for long term use up to 5 years.
32 32  
33 -Each S31x-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
38 +Each S31x-LB/LS is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
34 34  
35 35  
36 36  == 1.2 ​Features ==
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39 39  * LoRaWAN 1.0.3 Class A
40 40  * Ultra-low power consumption
41 41  * External 3 meters SHT31 probe (For S31-LB)
42 -* Measure range -55°C ~~ 125°C
47 +* Measure range -40°C ~~ 80°C
43 43  * Temperature & Humidity alarm
44 44  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
45 45  * Support Bluetooth v5.1 and LoRaWAN remote configure
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48 48  * Downlink to change configure
49 49  * 8500mAh Battery for long term use
50 50  
51 -
52 52  == 1.3 Specification ==
53 53  
54 54  
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91 91  * Sleep Mode: 5uA @ 3.3v
92 92  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
93 93  
94 -
95 95  == 1.4 Sleep mode and working mode ==
96 96  
97 97  
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119 119  )))
120 120  |(% 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.
121 121  
122 -
123 123  == 1.6 BLE connection ==
124 124  
125 125  
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143 143  == 1.8 Hardware Variant ==
144 144  
145 145  
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
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
148 148  |(% style="width:102px" %)(((
149 149  S31-LB
150 -)))|(% style="width:190px" %)[[image:image-20230527093214-2.jpeg]]|(% style="width:187px" %)(((
152 +)))|(% style="width:182px" %)[[image:image-20230527093214-2.jpeg]]|(% style="width:176px" %)(((
151 151  1 x SHT31 Probe
152 152  
153 153  Cable Length : 2 meters
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156 156  )))
157 157  |(% style="width:102px" %)(((
158 158  S31B-LB
159 -)))|(% style="width:190px" %)[[image:image-20230527093155-1.jpeg]]|(% style="width:187px" %)(((
161 +)))|(% style="width:182px" %)[[image:image-20230527093155-1.jpeg]]|(% style="width:176px" %)(((
160 160  1 x SHT31 Probe
161 161  
162 162  Installed in device.
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349 349  
350 350  If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
351 351  
352 -（FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
354 +(FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative)
353 353  
354 354  
355 355  ==== (% style="color:#4472c4" %)**Humidity**(%%) ====
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572 572  * 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]].
573 573  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
574 574  
575 -
576 576  == 3.2 General Commands ==
577 577  
578 578  
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620 620  * Example 1: Downlink Payload: 0100001E  ~/~/  Set Transmit Interval (TDC) = 30 seconds
621 621  * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
622 622  
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 -
708 708  === 3.3.7 Set Interrupt Mode ===
709 709  
710 710  
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738 738  * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
739 739  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
740 740  
741 -
742 742  === 3.3.8 Set Power Output Duration ===
743 743  
744 744  
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767 767  * Example 1: Downlink Payload: 070000  **~-~-->**  AT+5VT=0
768 768  * Example 2: Downlink Payload: 0701F4  **~-~-->**  AT+5VT=500
769 769  
770 -
771 771  = 4. Battery & Power Consumption =
772 772  
773 773  
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794 794  * (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/]]**
795 795  * 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]]**.
796 796  
797 -
798 798  = 6. FAQ =
799 799  
800 800  
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822 822  
823 823  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
824 824  
825 -
826 826  = 8. ​Packing Info =
827 827  
828 828  
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840 840  
841 841  * Weight / pcs : g
842 842  
843 -
844 844  = 9. Support =
845 845  
846 846  
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