Last modified by Mengting Qiu on 2025/05/19 14:30
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12 **Table of Contents:**
13
14 {{toc/}}
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20
21 = 1. Introduction =
22
23 == 1.1 What is S31x-LB/LS LoRaWAN Temperature & Humidity Sensor ==
24
25
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.
27
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.
29
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.
31
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.
33
34 S31x-LB/LS (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
35
36 S31x-LB/LS is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%) or (% style="color:blue" %)**solar powered + Li-ion battery**(%%) it is designed for long term use up to 5 years.
37
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.
39
40
41 == 1.2 ​Features ==
42
43
44 * LoRaWAN 1.0.3 Class A
45 * Ultra-low power consumption
46 * External 3 meters SHT31 probe (For S31-LB)
47 * Measure range -40°C ~~ 80°C
48 * Temperature & Humidity alarm
49 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
50 * Support Bluetooth v5.1 and LoRaWAN remote configure
51 * Support wireless OTA update firmware
52 * Uplink on periodically
53 * Downlink to change configure
54 * 8500mAh Li/SOCl2 Battery (S31/S31B-LB)
55 * Solar panel + 3000mAh Li-ion battery (S31/S31B-LS)
56
57 == 1.3 Specification ==
58
59
60 (% style="color:#037691" %)**Common DC Characteristics:**
61
62 * Supply Voltage: Built-in Battery , 2.5v ~~ 3.6v
63 * Operating Temperature: -40 ~~ 85°C
64
65 (% style="color:#037691" %)**Temperature Sensor:**
66
67 * Range: -40 to + 80°C
68 * Accuracy: ±0.2 @ 0-90 °C
69 * Resolution: 0.1°C
70 * Long Term Shift: <0.03 °C/yr
71
72 (% style="color:#037691" %)**Humidity Sensor: **
73
74 * Range: 0 ~~ 99.9% RH
75 * Accuracy: ± 2%RH ( 0 ~~ 100%RH)
76 * Resolution: 0.01% RH
77 * Long Term Shift: <0.25 %RH/yr
78
79 (% style="color:#037691" %)**LoRa Spec:**
80
81 * Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
82 * Max +22 dBm constant RF output vs.
83 * RX sensitivity: down to -139 dBm.
84 * Excellent blocking immunity
85
86 (% style="color:#037691" %)**Battery:**
87
88 * Li/SOCI2 un-chargeable battery
89 * Capacity: 8500mAh
90 * Self-Discharge: <1% / Year @ 25°C
91 * Max continuously current: 130mA
92 * Max boost current: 2A, 1 second
93
94 (% style="color:#037691" %)**Power Consumption**
95
96 * Sleep Mode: 5uA @ 3.3v
97 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
98
99 == 1.4 Sleep mode and working mode ==
100
101
102 (% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
103
104 (% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
105
106
107 == 1.5 Button & LEDs ==
108
109
110 [[image:image-20250416143859-1.jpeg]]
111
112 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
113 |=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 226px;background-color:#4F81BD;color:white" %)**Action**
114 |(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
115 If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
116 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
117 )))
118 |(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
119 (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
120 (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
121 Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.
122 )))
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
125 == 1.6 BLE connection ==
126
127
128 S31x-LB/LS support BLE remote configure.
129
130
131 BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
132
133 * Press button to send an uplink
134 * Press button to active device.
135 * Device Power on or reset.
136
137 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
138
139
140 == 1.7 Pin Definitions ==
141
142
143
144 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual/WebHome/image-20240926134323-1.png?rev=1.1||alt="image-20240926134323-1.png"]]
145
146
147 == 1.8 Hardware Variant ==
148
149
150 (% border="1" cellspacing="3" style="width:460px" %)
151 |=(% style="width: 102px;background-color:#4F81BD;color:white" %)Model|=(% style="width: 182px; background-color:#4F81BD;color:white" %)Photo|=(% style="width: 176px; background-color:#4F81BD;color:white" %)Probe Info
152 |(% style="width:102px" %)(((
153 S31-LB/LS
154 )))|(% style="width:182px" %)(((
155 (% style="text-align:center" %)
156 [[image:image-20240104165223-7.png]]
157 )))|(% style="width:176px" %)(((
158 1 x SHT31 Probe
159
160 Cable Length : 2 meters
161
162
163 )))
164 |(% style="width:102px" %)(((
165 S31B-LB/LS
166 )))|(% style="width:182px" %)(((
167 (% style="text-align:center" %)
168 [[image:image-20240104165338-9.png]]
169 )))|(% style="width:176px" %)(((
170 1 x SHT31 Probe
171
172 Installed in device.
173 )))
174
175 (% style="display:none" %)
176
177
178
179 == 1.9 Mechanical ==
180
181 === 1.9.1 for LB version ===
182
183 [[image:image-20250409174350-1.jpeg]]
184
185
186
187
188 === 1.9.2 for LS version ===
189
190
191 [[image:image-20250409174410-2.jpeg]]
192
193
194 = 2. Configure S31x-LB/LS to connect to LoRaWAN network =
195
196 == 2.1 How it works ==
197
198
199 The S31x-LB/LS is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the S31x-LB/LS. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
200
201
202 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
203
204
205 Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
206
207 The LPS8V2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
208
209 [[image:image-20250409175256-3.png]]
210
211 (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from S31x-LB/LS.
212
213 Each S31x-LB/LS is shipped with a sticker with the default device EUI as below:
214
215 [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
216
217
218 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
219
220 **Create the application.**
221
222 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SAC01L_LoRaWAN_Temperature%26Humidity_Sensor_User_Manual/WebHome/image-20250423093843-1.png?width=756&height=264&rev=1.1||alt="image-20250423093843-1.png"]]
223
224 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111305-2.png?width=1000&height=572&rev=1.1||alt="image-20240907111305-2.png"]]
225
226
227 **Add devices to the created Application.**
228
229 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111659-3.png?width=977&height=185&rev=1.1||alt="image-20240907111659-3.png"]]
230
231 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907111820-5.png?width=975&height=377&rev=1.1||alt="image-20240907111820-5.png"]]
232
233
234 **Enter end device specifics manually.**
235
236 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112136-6.png?width=697&height=687&rev=1.1||alt="image-20240907112136-6.png"]]
237
238
239 **Add DevEUI and AppKey.**
240
241 **Customize a platform ID for the device.**
242
243 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2-LB--LoRaWAN_Temperature_Transmitter_User_Manual/WebHome/image-20240907112427-7.png?rev=1.1||alt="image-20240907112427-7.png"]]
244
245
246 (% style="color:blue" %)**Step 2:**(%%) Add decoder.
247
248 In TTN, user can add a custom payload so it shows friendly reading.
249
250 Click this link to get the decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder/tree/main/>>url:https://github.com/dragino/dragino-end-node-decoder/tree/main/]]
251
252 Below is TTN screen shot:
253
254 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS25-LBLDS25-LS--LoRaWAN_LiDAR_Distance_Auto-Clean_Sensor_User_Manual/WebHome/image-20241009140556-1.png?width=1184&height=488&rev=1.1||alt="image-20241009140556-1.png" height="488" width="1184"]]
255
256 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS25-LBLDS25-LS--LoRaWAN_LiDAR_Distance_Auto-Clean_Sensor_User_Manual/WebHome/image-20241009140603-2.png?width=1168&height=562&rev=1.1||alt="image-20241009140603-2.png" height="562" width="1168"]]
257
258
259 (% style="color:blue" %)**Step 3:**(%%) Activate on S31x-LB/LS
260
261 Press the button for 5 seconds to activate the S31x-LB/LS.
262
263 (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
264
265 After join success, it will start to upload messages to TTN and you can see the messages in the panel.
266
267
268 == 2.3 ​Uplink Payload ==
269
270 === 2.3.1 Device Status, FPORT~=5 ===
271
272
273 Users can use the downlink command(**0x26 01**) to ask S31x-LB/LS to send device configure detail, include device configure status. S31x-LB/LS will uplink a payload via FPort=5 to server.
274
275 The Payload format is as below.
276
277 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
278 |(% colspan="6" style="background-color:#4f81bd; color:white" %)**Device Status (FPORT=5)**
279 |(% style="width:103px" %)**Size (bytes)**|(% style="width:72px" %)**1**|**2**|(% style="width:91px" %)**1**|(% style="width:86px" %)**1**|(% style="width:44px" %)**2**
280 |(% style="width:103px" %)Value|(% style="width:72px" %)Sensor Model|Firmware Version|(% style="width:91px" %)Frequency Band|(% style="width:86px" %)Sub-band|(% style="width:44px" %)BAT
281
282 Example parse in TTNv3
283
284 [[image:image-20230524144422-1.png||height="174" width="1080"]]
285
286
287 (% style="color:#037691" %)**Sensor Model**(%%): For S31x-LB/LS, this value is 0x0A
288
289 (% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
290
291 (% style="color:#037691" %)**Frequency Band**:
292
293 0x01: EU868
294
295 0x02: US915
296
297 0x03: IN865
298
299 0x04: AU915
300
301 0x05: KZ865
302
303 0x06: RU864
304
305 0x07: AS923
306
307 0x08: AS923-1
308
309 0x09: AS923-2
310
311 0x0a: AS923-3
312
313 0x0b: CN470
314
315 0x0c: EU433
316
317 0x0d: KR920
318
319 0x0e: MA869
320
321
322 (% style="color:#037691" %)**Sub-Band**:
323
324 AU915 and US915:value 0x00 ~~ 0x08
325
326 CN470: value 0x0B ~~ 0x0C
327
328 Other Bands: Always 0x00
329
330
331 (% style="color:#037691" %)**Battery Info**:
332
333 Check the battery voltage.
334
335 Ex1: 0x0B45 = 2885mV
336
337 Ex2: 0x0B49 = 2889mV
338
339
340 === 2.3.2  Sensor Data. FPORT~=2 ===
341
342
343 Sensor Data is uplink via FPORT=2
344
345 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
346 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
347 **Size(bytes)**
348 )))|=(% style="width: 40px;background-color:#4F81BD;color:white" %)2|=(% style="width: 90px;background-color:#4F81BD;color:white" %)4|=(% style="width: 150px; background-color: #4F81BD;color:white" %)1|=(% style="width: 80px; background-color: #4F81BD;color:white" %)**2**|=(% style="width: 80px; background-color: #4F81BD;color:white" %)2
349 |(% style="width:99px" %)Value|(% style="width:69px" %)(((
350 Battery
351 )))|(% style="width:130px" %)(((
352 Unix TimeStamp
353 )))|(% style="width:194px" %)(((
354 Alarm Flag & MOD& Level of PA8
355 )))|(% style="width:106px" %)(((
356 Temperature
357 )))|(% style="width:97px" %)(((
358 Humidity
359 )))
360
361 [[image:image-20230524144456-2.png||height="180" width="1142"]]
362
363
364 ==== (% style="color:#4472c4" %)**Battery**(%%) ====
365
366 Sensor Battery Level.
367
368 Ex1: 0x0B45 = 2885mV
369
370 Ex2: 0x0B49 = 2889mV
371
372
373 ==== (% style="color:#4472c4" %)**Temperature**(%%) ====
374
375 **Example**:
376
377 If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
378
379 If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
380
381 (FF3F & 8000:Judge whether the highest bit is 1, when the highest bit is 1, it is negative)
382
383
384 ==== (% style="color:#4472c4" %)**Humidity**(%%) ====
385
386 Read:0x(0197)=412    Value:  412 / 10=41.2, So 41.2%
387
388
389 ==== (% style="color:#4472c4" %)**Alarm Flag & MOD & Level of PA8**(%%) ====
390
391 **Example:**
392
393 If payload & 0x01 = 0x01  **~-~->** This is an Alarm Message.It means that the temperature and humidity exceed the alarm value or trigger an interrupt.
394
395 If payload & 0x01 = 0x00  **~-~->** This is a normal uplink message, no alarm.
396
397 If payload & 0x80>>7 = 0x01  **~-~->** The PA8 is low level.
398
399 If payload & 0x80>>7 =0x00  **~-~->** The PA8 is high level.
400
401 If payload >> 2 = 0x00  **~-~->**  means MOD=1, This is a sampling uplink message.
402
403 If payload >> 2 = 0x31  **~-~->**  means MOD=31, this message is a reply message for polling, this message contains the alarm settings. see [[this link>>path:#HPolltheAlarmsettings:]] for detail. 
404
405
406 == 2.4 Payload Decoder file ==
407
408
409 In TTN, use can add a custom payload so it shows friendly reading
410
411 In the page (% style="color:#037691" %)**Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder**(%%) to add the decoder from:
412
413 [[https:~~/~~/github.com/dragino/dragino-end-node-decoder/tree/main/S31-LB%26S31B-LB>>https://github.com/dragino/dragino-end-node-decoder/tree/main/S31-LB%26S31B-LB]]
414
415
416 == 2.5 Datalog Feature ==
417
418
419 Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, S31x-LB/LS will store the reading for future retrieving purposes.
420
421
422 === 2.5.1 Ways to get datalog via LoRaWAN ===
423
424
425 Set PNACKMD=1, S31x-LB/LS will wait for ACK for every uplink, when there is no LoRaWAN network,S31x-LB/LS will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
426
427 * (((
428 a) S31x-LB/LS will do an ACK check for data records sending to make sure every data arrive server.
429 )))
430 * (((
431 b) S31x-LB/LS will send data in **CONFIRMED Mode** when PNACKMD=1, but S31x-LB/LS won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if S31x-LB/LS gets a ACK, S31x-LB/LS will consider there is a network connection and resend all NONE-ACK messages.
432 )))
433
434 === 2.5.2 Unix TimeStamp ===
435
436
437 S31x-LB/LS uses Unix TimeStamp format based on
438
439 [[image:image-20250328173339-5.jpeg]]
440
441 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
442
443 Below is the converter example
444
445 [[image:image-20250328173355-6.jpeg]]
446
447
448 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
449
450
451 === 2.5.3 Set Device Time ===
452
453
454 User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
455
456 Once S31x-LB/LS Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to S31x-LB/LS. If S31x-LB/LS fails to get the time from the server, S31x-LB/LS will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
457
458 (% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
459
460
461 === 2.5.4 Datalog Uplink payload (FPORT~=3) ===
462
463
464 The Datalog uplinks will use below payload format.
465
466 **Retrieval data payload:**
467
468 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
469 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
470 **Size(bytes)**
471 )))|=(% style="width: 40px; background-color:#4F81BD;color:white" %)**2**|=(% style="width: 55px; background-color:#4F81BD;color:white" %)**2**|=(% style="width: 65px; background-color:#4F81BD;color:white" %)**2**|=(% style="width: 180px; background-color:#4F81BD;color:white" %)**1**|=(% style="width: 100px; background-color:#4F81BD;color:white" %)**4**
472 |(% style="width:103px" %)Value|(% style="width:68px" %)(((
473 ignore
474 )))|(% style="width:104px" %)(((
475 (((
476 Humidity
477 )))
478 )))|(% style="width:87px" %)(((
479 Temperature
480 )))|(% style="width:178px" %)(((
481 Poll message flag & Alarm Flag& Level of PA8
482 )))|(% style="width:137px" %)Unix Time Stamp
483
484 **Poll message flag & Alarm Flag & Level of PA8:**
485
486 [[image:image-20230524114302-1.png||height="115" width="736"]]
487
488
489 **No ACK Message**:  1: This message means this payload is fromn Uplink Message which doesn't get ACK from the server before ( for **PNACKMD=1** feature)
490
491 **Poll Message Flag**: 1: This message is a poll message reply.
492
493 * Poll Message Flag is set to 1.
494
495 * Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
496
497 For example, in US915 band, the max payload for different DR is:
498
499 **a) DR0:** max is 11 bytes so one entry of data
500
501 **b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
502
503 **c) DR2:** total payload includes 11 entries of data
504
505 **d) DR3: **total payload includes 22 entries of data.
506
507 If devise doesn't have any data in the polling time. Device will uplink 11 bytes of 0   
508
509 **Example:**
510
511 If S31x-LB/LS has below data inside Flash:
512
513 [[image:image-20230524114654-2.png]]
514
515
516 If user sends below downlink command: 31646D84E1646D856C05
517
518 Where : Start time: 646D84E1 = time 23/5/24 03:30:41
519
520 Stop time: 646D856C= time 23/5/24 03:33:00
521
522
523 **S31x-LB/LS will uplink this payload.**
524
525 [[image:image-20230524114826-3.png||height="448" width="1244"]]
526
527 (((
528 00 00 02 36 01 10 40 64 6D 84 E1 00 00 02 37 01 10 40 64 6D 84 F8 00 00 02 37 01 0F 40 64 6D 85 04 00 00 02 3A 01 0F 40 64 6D 85 18 00 00 02 3C 01 0F 40 64 6D 85 36 00 00 02 3D 01 0E 40 64 6D 85 3F 00 00 02 3F 01 0E 40 64 6D 85 60 00 00 02 40 01 0E 40 64 6D 85 6A
529 )))
530
531 (((
532 Where the first 11 bytes is for the first entry:
533 )))
534
535 (((
536 00 00 02 36 01 10 40 64 6D 84 E1
537 )))
538
539 (((
540 **Hum**=0x0236/10=56.6
541 )))
542
543 (((
544 **Temp**=0x0110/10=27.2
545 )))
546
547 (((
548 **poll message flag & Alarm Flag & Level of PA8**=0x40,means reply data,sampling uplink message,the PA8 is low level.
549 )))
550
551 (((
552 **Unix time** is 0x646D84E1=1684899041s=23/5/24 03:30:41
553 )))
554
555
556 (% aria-label="数据 URI 图像图像小部件" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||alt="数据 URI 图片" data-widget="image" draggable="true" height="15" role="presentation" title="单击并拖动以移动" width="15"]](% aria-label="数据 URI 图像图像小部件" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||alt="数据 URI 图片" draggable="true" height="15" role="presentation" title="单击并拖动以移动" width="15"]](% aria-label="数据 URI 图像图像小部件" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="单击并拖动以调整大小" %)的(% aria-label="数据 URI 图像图像小部件" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||alt="数据 URI 图片" data-widget="image" draggable="true" height="15" role="presentation" title="单击并拖动以移动" width="15"]](% aria-label="数据 URI 图像图像小部件" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||alt="数据 URI 图片" draggable="true" height="15" role="presentation" title="单击并拖动以移动" width="15"]](% aria-label="数据 URI 图像图像小部件" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="单击并拖动以调整大小" %)的
557
558 == 2.6 Temperature Alarm Feature ==
559
560
561 S31x-LB/LS work flow with Alarm feature.
562
563
564 [[image:image-20230524110125-3.png||height="768" width="1115"]]
565
566
567
568 == 2.7 Frequency Plans ==
569
570
571 The S31x-LB/LS uses OTAA mode and below frequency plans by default. Each frequency band use different firmware, user update the firmware to the corresponding band for their country.
572
573 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
574
575
576 == 2.8 ​Firmware Change Log ==
577
578
579 **Firmware download link: **[[https:~~/~~/www.dropbox.com/sh/fis3g6nmhv0eokg/AAC6BcCZaX4BdqZkduUvZ3jIa?dl=0>>https://www.dropbox.com/sh/fis3g6nmhv0eokg/AAC6BcCZaX4BdqZkduUvZ3jIa?dl=0]]
580
581
582 = 3. Configure S31x-LB/LS =
583
584 == 3.1 Configure Methods ==
585
586
587 S31x-LB/LS supports below configure method:
588
589 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
590 * 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]].
591 * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
592
593 == 3.2 General Commands ==
594
595
596 These commands are to configure:
597
598 * General system settings like: uplink interval.
599 * LoRaWAN protocol & radio related command.
600
601 They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
602
603 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
604
605
606 == 3.3 Commands special design for S31x-LB/LS ==
607
608
609 These commands only valid for S31x-LB/LS, as below:
610
611
612 === 3.3.1 Set Transmit Interval Time ===
613
614
615 Feature: Change LoRaWAN End Node Transmit Interval.
616
617 (% style="color:blue" %)**AT Command: AT+TDC**
618
619 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
620 |=(% style="width: 156px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 137px;background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
621 |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
622 30000
623 OK
624 the interval is 30000ms = 30s
625 )))
626 |(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((
627 OK
628 Set transmit interval to 60000ms = 60 seconds
629 )))
630
631 (% style="color:blue" %)**Downlink Command: 0x01**
632
633 Format: Command Code (0x01) followed by 3 bytes time value.
634
635 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
636
637 * Example 1: Downlink Payload: 0100001E  ~/~/  Set Transmit Interval (TDC) = 30 seconds
638 * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
639
640 === 3.3.2 Get Device Status ===
641
642
643 Send a LoRaWAN downlink to ask device send Alarm settings.
644
645 (% style="color:blue" %)**Downlink Payload:  **(%%)0x26 01
646
647 Sensor will upload Device Status via FPORT=5. See payload section for detail.
648
649
650 === 3.3.3 Set Temperature Alarm Threshold ===
651
652
653 * (% style="color:blue" %)**AT Command:**
654
655 (% style="color:#037691" %)**AT+SHTEMP=min,max**
656
657 * When min=0, and max≠0, Alarm higher than max
658 * When min≠0, and max=0, Alarm lower than min
659 * When min≠0 and max≠0, Alarm higher than max or lower than min
660
661 Example:
662
663 AT+SHTEMP=0,30   ~/~/ Alarm when temperature higher than 30.
664
665 * (% style="color:blue" %)**Downlink Payload:**
666
667 (% style="color:#037691" %)**0x(0C 01 00 1E)**  (%%) ~/~/ Set AT+SHTEMP=0,30
668
669 (% style="color:red" %)**(note: 3^^rd^^ byte= 0x00 for low limit(not set), 4^^th^^ byte = 0x1E for high limit: 30)**
670
671
672 === 3.3.4 Set Humidity Alarm Threshold ===
673
674
675 * (% style="color:blue" %)**AT Command:**
676
677 (% style="color:#037691" %)**AT+SHHUM=min,max**
678
679 * When min=0, and max≠0, Alarm higher than max
680 * When min≠0, and max=0, Alarm lower than min
681 * When min≠0 and max≠0, Alarm higher than max or lower than min
682
683 Example:
684
685 AT+SHHUM=70,0  ~/~/ Alarm when humidity lower than 70%.
686
687 * (% style="color:blue" %)**Downlink Payload:**
688
689 (% style="color:#037691" %)**0x(0C 02 46 00)**(%%)  ~/~/ Set AT+SHTHUM=70,0
690
691 (% style="color:red" %)**(note: 3^^rd^^ byte= 0x46 for low limit (70%), 4^^th^^ byte = 0x00 for high limit (not set))**
692
693
694 === 3.3.5 Set Alarm Interval ===
695
696
697 The shortest time of two Alarm packet. (unit: min)
698
699 * (% style="color:blue" %)**AT Command:**
700
701 (% style="color:#037691" %)**AT+ATDC=30** (%%) ~/~/ The shortest interval of two Alarm packets is 30 minutes, Means is there is an alarm packet uplink, there won't be another one in the next 30 minutes.
702
703 * (% style="color:blue" %)**Downlink Payload:**
704
705 (% style="color:#037691" %)**0x(0D 00 1E)**(%%)     **~-~--> ** Set AT+ATDC=0x 00 1E = 30 minutes
706
707
708 === 3.3.6 Get Alarm settings ===
709
710
711 Send a LoRaWAN downlink to ask device send Alarm settings.
712
713 * (% style="color:#037691" %)**Downlink Payload:  **(%%)0x0E 01
714
715 **Example:**
716
717 [[image:image-20230524110211-4.png]]
718
719 **Explain:**
720
721 * Alarm & MOD bit is 0x7C, 0x7C >> 2 = 0x31: Means this message is the Alarm settings message.
722
723 === 3.3.7 Set Interrupt Mode ===
724
725
726 Feature, Set Interrupt mode for PA8 of pin.
727
728 When AT+INTMOD=0 is set, PA8 is used as a digital input port.
729
730 (% style="color:blue" %)**AT Command: AT+INTMOD**
731
732 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
733 |=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 192px; background-color: rgb(79, 129, 189); color: white;" %)**Function**|=(% style="width: 161px; background-color: rgb(79, 129, 189); color: white;" %)**Response**
734 |(% style="width:154px" %)AT+INTMOD=?|(% style="width:192px" %)Show current interrupt mode|(% style="width:161px" %)(((
735 0
736 OK
737 the mode is 0 =Disable Interrupt
738 )))
739 |(% style="width:154px" %)AT+INTMOD=2|(% style="width:192px" %)(((
740 0: Disable Interrupt
741 1: Trigger by rising and falling edge
742 2: Trigger by falling edge
743 3: Trigger by rising edge
744 )))|(% style="width:161px" %)OK
745
746 (% style="color:blue" %)**Downlink Command: 0x06**
747
748 Format: Command Code (0x06) followed by 3 bytes.
749
750 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
751
752 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
753 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
754
755 === 3.3.8 Set Power Output Duration ===
756
757
758 Control the output duration 5V . Before each sampling, device will
759
760 ~1. first enable the power output to external sensor,
761
762 2. keep it on as per duration, read sensor value and construct uplink payload
763
764 3. final, close the power output.
765
766 (% style="color:blue" %)**AT Command: AT+5VT**
767
768 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
769 |=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 197px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Response**
770 |(% style="width:154px" %)AT+5VT=?|(% style="width:196px" %)Show 5V open time.|(% style="width:157px" %)0 (default)
771 OK
772 |(% style="width:154px" %)AT+5VT=1000|(% style="width:196px" %)Close after a delay of 1000 milliseconds.|(% style="width:157px" %)OK
773
774 (% style="color:blue" %)**Downlink Command: 0x07**
775
776 Format: Command Code (0x07) followed by 2 bytes.
777
778 The first and second bytes are the time to turn on.
779
780 * Example 1: Downlink Payload: 070000  **~-~-->**  AT+5VT=0
781 * Example 2: Downlink Payload: 0701F4  **~-~-->**  AT+5VT=500
782
783 === 3.3.9 Print data entries base on page ===
784
785
786 Feature: Print the sector data from start page to stop page (max is 416 pages).
787
788 (% style="color:#4f81bd" %)**AT Command: AT+PDTA**
789
790 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
791 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
792 |(% style="width:156px" %)(((
793 AT+PDTA=1,3
794 Print page 1 to 3
795 )))|(% style="width:311px" %)(((
796 8019500 19/6/26 16:48 1 2992 sht temp=28.21 sht hum=71.5 ds temp=27.31
797 8019510 19/6/26 16:53 1 2994 sht temp=27.64 sht hum=69.3 ds temp=26.93
798 8019520 19/6/26 16:58 1 2996 sht temp=28.39 sht hum=72.0 ds temp=27.06
799 8019530 19/6/26 17:03 1 2996 sht temp=27.97 sht hum=70.4 ds temp=27.12
800 8019540 19/6/26 17:08 1 2996 sht temp=27.80 sht hum=72.9 ds temp=27.06
801 8019550 19/6/26 17:13 1 2998 sht temp=27.30 sht hum=72.4 ds temp=26.68
802 8019560 19/6/26 17:22 1 2992 sht temp=26.27 sht hum=62.3 ds temp=26.56
803 8019570
804 8019580
805 8019590
806 80195A0
807 80195B0
808 80195C0
809 80195D0
810 80195E0
811 80195F0
812
813 OK
814 )))
815
816 (% style="color:#4f81bd" %)**Downlink Command:**
817
818 No downlink commands for feature
819
820
821 === 3.3.10 Print last few data entries ===
822
823
824 Feature: Print the last few data entries
825
826 (% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
827
828 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
829 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
830 |(% style="width:156px" %)(((
831 AT+PLDTA=5
832 Print last 5 entries
833 )))|(% style="width:311px" %)(((
834 Stop Tx and RTP events when read sensor data
835 1 19/6/26 13:59 1 3005 sht temp=27.09 sht hum=79.5 ds temp=26.75
836 2 19/6/26 14:04 1 3007 sht temp=26.65 sht hum=74.8 ds temp=26.43
837 3 19/6/26 14:09 1 3007 sht temp=26.91 sht hum=77.9 ds temp=26.56
838 4 19/6/26 14:15 1 3007 sht temp=26.93 sht hum=76.7 ds temp=26.75
839 5 19/6/26 14:20 1 3007 sht temp=26.78 sht hum=76.6 ds temp=26.43
840 Start Tx and RTP events
841 OK
842 )))
843
844 (% style="color:#4f81bd" %)**Downlink Command:**
845
846 No downlink commands for feature
847
848
849 === 3.3.11 Clear Flash Record ===
850
851
852 Feature: Clear flash storage for data log feature.
853
854 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
855
856 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)
857 |(% style="background-color:#4f81bd; color:white; width:157px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:137px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:209px" %)**Response**
858 |(% style="width:155px" %)AT+CLRDTA |(% style="width:134px" %)Clear date record|(% style="width:209px" %)(((
859 Clear all stored sensor data…
860
861 OK
862 )))
863
864 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
865
866 * Example: 0xA301  ~/~/  Same as AT+CLRDTA
867
868 = 4. Battery & Power Consumption =
869
870
871 S31x-LB use ER26500 + SPC1520 battery pack and S31x-LS use 3000mAh Recharable Battery with Solar Panel. See below link for detail information about the battery info and how to replace.
872
873 [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
874
875
876 = 5. OTA Firmware update =
877
878
879 (% class="wikigeneratedid" %)
880 User can change firmware S31x-LB/LS to:
881
882 * Change Frequency band/ region.
883 * Update with new features.
884 * Fix bugs.
885
886 Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/fis3g6nmhv0eokg/AAC6BcCZaX4BdqZkduUvZ3jIa?dl=0]]**
887
888
889 Methods to Update Firmware:
890
891 * (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/]]**
892 * 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]]**.
893
894 = 6. FAQ =
895
896
897
898 = 7. Order Info =
899
900
901 Part Number: (% style="color:blue" %)**S31-LB-XX / S31B-LB-XX**(%%)**  or  (% style="color:blue" %)S31-LS-XX / S31B-LS-XX(%%)**
902
903 (% style="color:red" %)**XX**(%%): The default frequency band
904
905 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
906
907 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
908
909 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
910
911 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
912
913 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
914
915 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
916
917 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
918
919 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
920
921 = 8. ​Packing Info =
922
923
924 (% style="color:#037691" %)**Package Includes**:
925
926 * S31x-LB or S31x-LS LoRaWAN Temperature & Humidity Sensor
927
928 (% style="color:#037691" %)**Dimension and weight**:
929
930 * Device Size: cm
931
932 * Device Weight: g
933
934 * Package Size / pcs : cm
935
936 * Weight / pcs : g
937
938 = 9. Support =
939
940
941 * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
942
943 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[Support@dragino.cc>>mailto:Support@dragino.cc]].

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