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Version 82.2 by Xiaoling on 2023/08/19 13:53
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1 (% style="text-align:center" %)
2 [[image:image-20230819102136-3.png]]
3
4
5
6 **Table of Contents：**
7
8 {{toc/}}
9
10
11
12
13
14
15 = 1. Introduction =
16
17 == 1.1 What is S31x-NB NB-IoT Temperature & Humidity Sensor ==
18
19
20 The Dragino S31-NB and S31B-NB are (% style="color:blue" %)**NB-IoT Temperature and Humidity Sensor**(%%) for Internet of Things solution. It is used to measure the surrounding (% style="color:blue" %)**environment temperature and relative air humidity precisely**(%%), and then upload to IoT server via NB-IoT network*.
21
22 The temperature & humidity sensor used in S31-NB 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.
23
24 S31-NB supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP** for different application requirement. and Support Uplinks to various IoT Servers.
25
26 S31-NB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), It is designed for long term use up to several years. (Real-world battery life depends on the use environment, update period and uplink method. Please check related Power Analyze report).
27
28 *make sure you have NB-IoT coverage locally.
29
30
31 [[image:1692411831805-116.png]]
32
33
34 == 1.2 ​Features ==
35
36
37 * NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
38 * Ultra-low power consumption
39 * External 3 meters SHT31 probe (For S31-NB)
40 * Measure range -40°C ~~ 85°C
41 * Temperature & Humidity alarm
42 * Multiply Sampling and one uplink
43 * Support Bluetooth v5.1 remote configure and update firmware
44 * Uplink on periodically
45 * Downlink to change configure
46 * 8500mAh Battery for long term use
47 * Nano SIM card slot for NB-IoT SIM
48
49 == 1.3 Specification ==
50
51
52 (% style="color:#037691" %)**Common DC Characteristics:**
53
54 * Supply Voltage: 2.1v ~~ 3.6v
55 * Operating Temperature: -40 ~~ 85°C
56
57 (% style="color:#037691" %)**Temperature Sensor:**
58
59 * Range: -40 to + 80°C
60 * Accuracy: ±0.2 @ 0-90 °C
61 * Resolution: 0.1°C
62 * Long Term Shift: <0.03 °C/yr
63
64 (% style="color:#037691" %)**Humidity Sensor: **
65
66 * Range: 0 ~~ 99.9% RH
67 * Accuracy: ± 2%RH ( 0 ~~ 100%RH)
68 * Resolution: 0.01% RH
69 * Long Term Shift: <0.25 %RH/yr
70
71 (% style="color:#037691" %)**NB-IoT Spec:**
72
73 **NB-IoT Module: BC660K-GL**
74
75 Support Bands:
76
77 * B1 @H-FDD: 2100MHz
78 * B2 @H-FDD: 1900MHz
79 * B3 @H-FDD: 1800MHz
80 * B4 @H-FDD: 2100MHz
81 * B5 @H-FDD: 860MHz
82 * B8 @H-FDD: 900MHz
83 * B12 @H-FDD: 720MHz
84 * B13 @H-FDD: 740MHz
85 * B17 @H-FDD: 730MHz
86 * B18 @H-FDD: 870MHz
87 * B19 @H-FDD: 870MHz
88 * B20 @H-FDD: 790MHz
89 * B25 @H-FDD: 1900MHz
90 * B28 @H-FDD: 750MHz
91 * B66 @H-FDD: 2000MHz
92 * B70 @H-FDD: 2000MHz
93 * B85 @H-FDD: 700MHz
94
95 (% style="color:#037691" %)**Battery:**
96
97 * Li/SOCI2 un-chargeable battery
98 * Capacity: 8500mAh
99 * Self Discharge: <1% / Year @ 25°C
100 * Max continuously current: 130mA
101 * Max boost current: 2A, 1 second
102
103 (% style="color:#037691" %)**Power Consumption**
104
105 * STOP Mode: 10uA @ 3.3v
106 * Max transmit power: 350mA@3.3v
107
108 == 1.4 Applications ==
109
110
111 * Smart Buildings & Home Automation
112 * Logistics and Supply Chain Management
113 * Smart Metering
114 * Smart Agriculture
115 * Smart Cities
116 * Smart Factory
117
118 == 1.5 Sleep mode and working mode ==
119
120
121 (% 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.
122
123 (% 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.
124
125
126
127 == 1.6 Button & LEDs ==
128
129
130 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
131
132
133 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
134 |=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width:225px;background-color:#4F81BD;color:white" %)**Action**
135 |(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
136 If sensor has already attached to NB-IoT network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
137 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
138 )))
139 |(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
140 (% 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 attach NB-IoT network.
141 (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
142 Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device attach NB-IoT network or not.
143 )))
144 |(% 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.
145
146 == 1.7 BLE connection ==
147
148
149 S31x-NB support BLE remote configure and firmware update.
150
151
152 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:
153
154 * Press button to send an uplink
155 * Press button to active device.
156 * Device Power on or reset.
157
158 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
159
160
161 == 1.8 Pin Definitions & Switch ==
162
163
164 S31x-NB use the mother board from S31-NB which as below.
165
166 [[image:image-20230819104805-5.png]]
167
168
169
170 === 1.8.1 Jumper JP2 ===
171
172
173 Power on Device when put this jumper.
174
175
176 === 1.8.2 BOOT MODE / SW1 ===
177
178
179 1) (% style="color:blue" %)**ISP**(%%): upgrade mode, device won't have any signal in this mode. but ready for upgrade firmware. LED won't work. Firmware won't run.
180
181 2) (% style="color:blue" %)**Flash**(%%): work mode, device starts to work and send out console output for further debug
182
183
184 === 1.8.3 Reset Button ===
185
186
187 Press to reboot the device.
188
189
190
191 == 1.9 Hardware Variant ==
192
193
194 (% border="1" cellspacing="5" style="width:410px" %)
195 |=(% style="width: 102px;background-color:#4F81BD;color:white" %)Model|=(% style="width: 126px; background-color:#4F81BD;color:white" %)Photo|=(% style="width: 179px;background-color:#4F81BD;color:white" %)Probe Info
196 |(% style="width:102px" %)(((
197 S31-LB
198 )))|(% style="width:126px" %)(((
199 (% style="text-align:center" %)
200 [[image:image-20230819110632-6.png||height="130" width="104"]]
201 )))|(% style="width:179px" %)(((
202 1 x SHT31 Probe
203
204 Cable Length : 3 meters
205
206
207 )))
208 |(% style="width:102px" %)(((
209 S31B-LB
210 )))|(% style="width:126px" %)(((
211 (% style="text-align:center" %)
212 [[image:image-20230819110702-7.png||height="164" width="90"]]
213 )))|(% style="width:179px" %)(((
214 1 x SHT31 Probe
215
216 Installed in device.
217 )))
218
219 (% style="display:none" %)
220
221
222
223
224 = 2. Use S31-NB to communicate with IoT Server =
225
226 == 2.1 Send data to IoT server via NB-IoT network ==
227
228
229 The S31-NB is equipped with a NB-IoT module, the pre-loaded firmware in S31-NB will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module.  The NB-IoT network will forward this value to IoT server via the protocol defined by S31-NB.
230
231
232 Below shows the network structure:
233
234 [[image:1692415924540-357.png]]
235
236
237 There are two version: (% style="color:blue" %)**-GE**(%%) and (% style="color:blue" %)**-1D**(%%) version of S31-NB.
238
239
240 (% style="color:blue" %)**GE Version**(%%): This version doesn’t include SIM card or point to any IoT server. User needs to use AT Commands to configure below two steps to set S31-NB send data to IoT server.
241
242 1. Install NB-IoT SIM card and configure APN. See instruction of [[Attach Network>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H2.AttachNetwork]].
243
244 1. Set up sensor to point to IoT Server. See instruction of [[Configure to Connect Different Servers>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.Configuretoconnecttodifferentservers]]. 
245
246 Below shows result of different server as a glance.
247
248
249 (% border="1" cellspacing="4" style="width:515px" %)
250 |(% style="background-color:#4f81bd; color:white; width:100px" %)**Servers**|(% style="background-color:#4f81bd; color:white; width:300px" %)**Dash Board**|(% style="background-color:#4f81bd; color:white; width:115px" %)**Comments**
251 |(% style="width:127px" %)[[Node-Red>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.5A0Node-RedA028viaA0MQTT29]]|(% style="width:385px" %)[[image:image-20230819113244-8.png||height="183" width="367"]]|(% style="width:170px" %)
252 |(% style="width:127px" %)[[DataCake>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.4Datacake]]|(% style="width:385px" %)[[image:image-20230819113244-9.png||height="120" width="369"]]|(% style="width:170px" %)
253 |(% style="width:127px" %)[[Tago.IO>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.7A0Tago.ioA028viaA0MQTT29]]|(% style="width:385px" %) |(% style="width:170px" %)
254 |(% style="width:127px" %)[[General UDP>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.1GeneralA0UDPA0Connection]]|(% style="width:385px" %)Raw Payload. Need Developer to design Dash Board|(% style="width:170px" %)
255 |(% style="width:127px" %)[[General MQTT>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.2GeneralA0MQTTA0Connection]]|(% style="width:385px" %)Raw Payload. Need Developer to design Dash Board|(% style="width:170px" %)
256 |(% style="width:127px" %)[[ThingSpeak>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.3A0ThingSpeakA028viaA0MQTT29]]|(% style="width:385px" %)[[image:image-20230819113244-10.png||height="82" width="291"]]|(% style="width:170px" %)
257 |(% style="width:127px" %)[[ThingsBoard>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.6A0ThingsBoard.CloudA028viaA0MQTT29]]|(% style="width:385px" %)[[image:image-20230819113244-11.png||height="113" width="293"]]|(% style="width:170px" %)
258 |(% style="width:127px" %) |(% style="width:385px" %) |(% style="width:170px" %)
259
260 (% style="color:blue" %)**1D Version**(%%): This version has 1NCE SIM card pre-installed and configure to send value to DataCake. User Just need to select the sensor type in DataCake and Activate S31-NB and user will be able to see data in DataCake. See here for [[DataCake Config Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.4Datacake]].
261
262
263 == 2.2 ​Payload Types ==
264
265
266 To meet different server requirement, S31-NB supports different payload type.
267
268 **Includes:**
269
270 * [[General JSON format payload>>path:#General_Json]]. (Type=5)
271
272 * [[HEX format Payload>>path:#HEX_Payload]]. (Type=0)
273
274 * [[ThingSpeak Format>>path:#ThingSpeak_Payload]]. (Type=1)
275
276 * [[ThingsBoard Format>>path:#ThingsBoard_Payload]]. (Type=3)
277
278 User can specify the payload type when choose the connection protocol. Example:
279
280 (% style="color:#037691" %)**AT+PRO=2,0**  (%%) ~/~/ Use UDP Connection & hex Payload
281
282 (% style="color:#037691" %)**AT+PRO=2,5**   (%%) ~/~/ Use UDP Connection & Json Payload
283
284 (% style="color:#037691" %)**AT+PRO=3,5 ** (%%) ~/~/ Use MQTT Connection & Json Payload
285
286
287 === 2.2.1 General Json Format (Type~=5) ===
288
289
290 This is the General Json Format. As below:
291
292 (% style="color:#4472c4" %)**{"IMEI":866207053462762,"temperature":29.2,"humidity":54.2,"battery":3.27,"signal":24,"Model":S31x-NB, "1":{28.2,48.3,2023/08/10 08:00:37},"2":{28.1,49.1,2023/08/10 07:57:37},"3":{28.1,48.5,2023/08/10 07:54:37},"4":{28.2,48.6,2023/08/10 07:51:37},"5":{28.1,48.9,2023/08/10 07:48:37},"6":{28.2,48.8,2023/08/10 07:45:37},"7":{28.2,48.8,2023/08/10 07:42:37},"8":{28.0,48.8,2023/08/10 07:39:37}}**
293
294
295 (% style="color:red" %)**Notice, from above payload:**
296
297 * Temperature , Humidity , Battery & Signal are the value at uplink time.
298
299 * Json entry 1 ~~ 8 are the last 1 ~~ 8 sampling data as specify by (% style="color:#037691" %)**AT+NOUD=8 ** (%%)Command. Each entry includes (from left to right): Temperature, Humidity, Sampling time.
300
301 === 2.2.2 HEX format Payload(Type~=0) ===
302
303
304 This is the HEX Format. As below:
305
306 (% style="color:#4472c4" %)**f86620705346276200640cba16010000000011011801e864d49c2d011a01e364d49925011901eb64d49871011901e564d497bd011a01e664d49709011901e964d49655011a01e864d495a1011a01e864d494ed011801e864d49439**
307
308 [[image:1692424009971-458.png]]
309
310
311 (% style="color:blue" %)**Version:**
312
313 These bytes include the hardware and software version.
314
315 (% style="color:#037691" %)**Higher byte:**(%%) Specify Sensor Model: 0x00 for S31B-NB & S31-NB
316
317 (% style="color:#037691" %)**Lower byte:**(%%) Specify the software version: 0x64=100, means firmware version 100
318
319
320 (% style="color:blue" %)**BAT (Battery Info):**
321
322 Ex1: 0x0CBA = 3258mV
323
324
325 (% style="color:blue" %)**Signal Strength:**
326
327 NB-IoT Network signal Strength.
328
329 **Ex1: 0x16 = 22**
330
331 **0**  -113dBm or less
332
333 **1**  -111dBm
334
335 **2...30** -109dBm... -53dBm
336
337 **31**   -51dBm or greater
338
339 **99**    Not known or not detectable
340
341
342 (% style="color:blue" %)**Temperature: **
343
344 If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
345
346 If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
347
348 (FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative)
349
350
351
352 (% style="color:blue" %)**Humidity:   **
353
354 Read:0295(H)=661(D)    Value:  661 / 10=66.1, So 66.1%
355
356
357 (% style="color:blue" %)**TimeStamp:   **
358
359 Unit TimeStamp Example: 64d49439(H) = 1691653177(D)
360
361 Put the decimal value into this link(https:~/~/www.epochconverter.com/) to get the time.
362
363
364 === 2.2.3 ThingsBoard Payload(Type~=3) ===
365
366
367 Type3 payload special design for ThingsBoard, it will also configure other default server to ThingsBoard.
368
369
370 (% style="color:#4472c4" %)**{"IMEI":866207053462762,"temperature":29.2,"humidity":54.2,"battery":3.27,"signal":24}**
371
372
373 === 2.2.4 ThingSpeak Payload(Type~=1) ===
374
375
376 This payload meets ThingSpeak platform requirement. It includes only four fields. Form 1~~4 are:
377
378 Temperature, Humidity, Battery & Signal. This payload type only valid for ThingsSpeak Platform
379
380
381 As below:
382
383 (% style="color:#4472c4" %)**field1=27.9&field2=49.9&field3=3.23&field4=28**
384
385
386 == 2.3 Test Uplink and Change Update Interval ==
387
388
389 By default, Sensor will send uplinks (% style="color:blue" %)**every 2 hours**(%%) & AT+NOUD=8
390
391
392 User can use below commands to change the (% style="color:blue" %)**uplink interval**.
393
394 (% style="color:#037691" %)**AT+TDC=600 ** (%%) ~/~/ Set Update Interval to 600s
395
396 User can also push the button for more than 1 seconds to activate an uplink.
397
398
399 == 2.4 Multi-Samplings and One uplink ==
400
401
402 To save battery life, S31-NB will sample temperature & humidity data every 15 minutes and send one uplink every 2 hours. So each uplink it will include 8 stored data + 1 real-time data. They are defined by:
403
404 * (% style="color:#037691" %)**AT+TR=900**   (%%) ~/~/  The unit is seconds, and the default is to record data once every 900 seconds (15 minutes, the minimum can be set to 180 seconds)
405
406 * (% style="color:#037691" %)**AT+NOUD=8**  (%%)~/~/   The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
407
408 The diagram below explains the relationship between TR, NOUD, and TDC more clearly:
409
410 [[image:1692424376354-959.png]]
411
412
413 == 2.5 Humidity and Temperature alarm function ==
414
415
416 On each sampling define by AT+TR ( default 900s or 15 minutes), when the value exceed the range, it will trigger an Alarm and immediately sends a uplink.
417
418
419 (% style="color:blue" %)**AT Commands:**
420
421 (% style="color:#037691" %)**AT+ SHHUM=min,max**
422
423 Example: AT+ SHHUM=50,80 ~/~/ Alarm when humidity lower than 50 or higher than 80.
424
425
426 (% style="color:#037691" %)**AT+ SHTEMP=min,max**
427
428 Example: AT+ SHTEMP=20,30 ~/~/ Alarm when temperature lower than 20 or higher than 30
429
430
431 (% style="color:red" %)**Notice:**
432
433 * To disable Alarm, user can set min and max to same value , such as (% style="color:#037691" %)**AT+SHTEMP=0,0.**
434
435 * If user only want to send only min or max, user can set the alarm to a value that device won’t reach. For example: (% style="color:#037691" %)**AT+SHTEMP=-80,0.**
436
437
438
439 == 2.6 Trggier an uplink by external interrupt ==
440
441
442 S31-NB has an external trigger interrupt function. Users can use the PB15 pin to trigger the upload of data packets.
443
444 (% style="color:blue" %)**AT command:**
445
446 * (% style="color:#037691" %)**AT+INTMOD **(%%) ~/~/ Set the trigger interrupt mode
447
448 * (% style="color:#037691" %)**AT+INTMOD=0 **(%%) ~/~/Disable Interrupt
449
450 * (% style="color:#037691" %)**AT+INTMOD=1 **(%%) ~/~/Trigger by rising and falling edge
451
452 * (% style="color:#037691" %)**AT+INTMOD=2 **(%%) ~/~/Trigger by falling edge
453
454 * (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/Trigger by rising edge
455
456
457 = 3. Configure S31x-NB =
458
459 == 3.1 Configure Methods ==
460
461
462 S31x-NB supports below configure method:
463
464 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
465
466 * 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]].
467
468 * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
469
470
471 == 3.2 General Commands ==
472
473
474 These commands are to configure:
475
476 * General system settings like: uplink interval.
477 * LoRaWAN protocol & radio related command.
478
479 They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
480
481 [[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/]]
482
483
484 == 3.3 Commands special design for S31x-LB ==
485
486
487 These commands only valid for S31x-LB, as below:
488
489
490 === 3.3.1 Set Transmit Interval Time ===
491
492
493 Feature: Change LoRaWAN End Node Transmit Interval.
494
495 (% style="color:blue" %)**AT Command: AT+TDC**
496
497 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
498 |=(% style="width: 156px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="background-color:#D9E2F3;color:#0070C0" %)**Response**
499 |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
500 30000
501 OK
502 the interval is 30000ms = 30s
503 )))
504 |(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((
505 OK
506 Set transmit interval to 60000ms = 60 seconds
507 )))
508
509 (% style="color:blue" %)**Downlink Command: 0x01**
510
511 Format: Command Code (0x01) followed by 3 bytes time value.
512
513 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
514
515 * Example 1: Downlink Payload: 0100001E  ~/~/  Set Transmit Interval (TDC) = 30 seconds
516 * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
517
518 === 3.3.2 Get Device Status ===
519
520
521 Send a LoRaWAN downlink to ask device send Alarm settings.
522
523 (% style="color:blue" %)**Downlink Payload:  **(%%)0x26 01
524
525 Sensor will upload Device Status via FPORT=5. See payload section for detail.
526
527
528 === 3.3.3 Set Temperature Alarm Threshold ===
529
530
531 * (% style="color:blue" %)**AT Command:**
532
533 (% style="color:#037691" %)**AT+SHTEMP=min,max**
534
535 * When min=0, and max≠0, Alarm higher than max
536 * When min≠0, and max=0, Alarm lower than min
537 * When min≠0 and max≠0, Alarm higher than max or lower than min
538
539 Example:
540
541 AT+SHTEMP=0,30   ~/~/ Alarm when temperature higher than 30.
542
543 * (% style="color:blue" %)**Downlink Payload:**
544
545 (% style="color:#037691" %)**0x(0C 01 00 1E)**  (%%) ~/~/ Set AT+SHTEMP=0,30
546
547 (% style="color:red" %)**(note: 3^^rd^^ byte= 0x00 for low limit(not set), 4^^th^^ byte = 0x1E for high limit: 30)**
548
549
550 === 3.3.4 Set Humidity Alarm Threshold ===
551
552
553 * (% style="color:blue" %)**AT Command:**
554
555 (% style="color:#037691" %)**AT+SHHUM=min,max**
556
557 * When min=0, and max≠0, Alarm higher than max
558 * When min≠0, and max=0, Alarm lower than min
559 * When min≠0 and max≠0, Alarm higher than max or lower than min
560
561 Example:
562
563 AT+SHHUM=70,0  ~/~/ Alarm when humidity lower than 70%.
564
565 * (% style="color:blue" %)**Downlink Payload:**
566
567 (% style="color:#037691" %)**0x(0C 02 46 00)**(%%)  ~/~/ Set AT+SHTHUM=70,0
568
569 (% style="color:red" %)**(note: 3^^rd^^ byte= 0x46 for low limit (70%), 4^^th^^ byte = 0x00 for high limit (not set))**
570
571
572 === 3.3.5 Set Alarm Interval ===
573
574
575 The shortest time of two Alarm packet. (unit: min)
576
577 * (% style="color:blue" %)**AT Command:**
578
579 (% 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.
580
581 * (% style="color:blue" %)**Downlink Payload:**
582
583 (% style="color:#037691" %)**0x(0D 00 1E)**(%%)     **~-~--> ** Set AT+ATDC=0x 00 1E = 30 minutes
584
585
586 === 3.3.6 Get Alarm settings ===
587
588
589 Send a LoRaWAN downlink to ask device send Alarm settings.
590
591 * (% style="color:#037691" %)**Downlink Payload:  **(%%)0x0E 01
592
593 **Example:**
594
595 [[image:image-20230524110211-4.png]]
596
597 **Explain:**
598
599 * Alarm & MOD bit is 0x7C, 0x7C >> 2 = 0x31: Means this message is the Alarm settings message.
600
601 === 3.3.7 Set Interrupt Mode ===
602
603
604 Feature, Set Interrupt mode for PA8 of pin.
605
606 When AT+INTMOD=0 is set, PA8 is used as a digital input port.
607
608 (% style="color:blue" %)**AT Command: AT+INTMOD**
609
610 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
611 |=(% 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**
612 |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
613 0
614 OK
615 the mode is 0 =Disable Interrupt
616 )))
617 |(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
618 Set Transmit Interval
619 0. (Disable Interrupt),
620 ~1. (Trigger by rising and falling edge)
621 2. (Trigger by falling edge)
622 3. (Trigger by rising edge)
623 )))|(% style="width:157px" %)OK
624
625 (% style="color:blue" %)**Downlink Command: 0x06**
626
627 Format: Command Code (0x06) followed by 3 bytes.
628
629 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
630
631 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
632 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
633
634 === 3.3.8 Set Power Output Duration ===
635
636
637 Control the output duration 5V . Before each sampling, device will
638
639 ~1. first enable the power output to external sensor,
640
641 2. keep it on as per duration, read sensor value and construct uplink payload
642
643 3. final, close the power output.
644
645 (% style="color:blue" %)**AT Command: AT+5VT**
646
647 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
648 |=(% 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**
649 |(% style="width:154px" %)AT+5VT=?|(% style="width:196px" %)Show 5V open time.|(% style="width:157px" %)0 (default)
650 OK
651 |(% style="width:154px" %)AT+5VT=1000|(% style="width:196px" %)Close after a delay of 1000 milliseconds.|(% style="width:157px" %)OK
652
653 (% style="color:blue" %)**Downlink Command: 0x07**
654
655 Format: Command Code (0x07) followed by 2 bytes.
656
657 The first and second bytes are the time to turn on.
658
659 * Example 1: Downlink Payload: 070000  **~-~-->**  AT+5VT=0
660 * Example 2: Downlink Payload: 0701F4  **~-~-->**  AT+5VT=500
661
662 = 4. Battery & Power Consumption =
663
664
665 S31x-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
666
667 [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
668
669
670 = 5. OTA Firmware update =
671
672
673 (% class="wikigeneratedid" %)
674 User can change firmware S31x-LB to:
675
676 * Change Frequency band/ region.
677 * Update with new features.
678 * Fix bugs.
679
680 Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/fis3g6nmhv0eokg/AAC6BcCZaX4BdqZkduUvZ3jIa?dl=0]]**
681
682
683 Methods to Update Firmware:
684
685 * (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/]]**
686 * 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]]**.
687
688 = 6. FAQ =
689
690
691
692 = 7. Order Info =
693
694
695 Part Number: (% style="color:blue" %)**S31-LB-XX  / S31B-LB-XX**
696
697 (% style="color:red" %)**XX**(%%): The default frequency band
698
699 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
700
701 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
702
703 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
704
705 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
706
707 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
708
709 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
710
711 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
712
713 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
714
715 = 8. ​Packing Info =
716
717
718 (% style="color:#037691" %)**Package Includes**:
719
720 * S31x-LB LoRaWAN Temperature & Humidity Sensor
721
722 (% style="color:#037691" %)**Dimension and weight**:
723
724 * Device Size: cm
725
726 * Device Weight: g
727
728 * Package Size / pcs : cm
729
730 * Weight / pcs : g
731
732 = 9. Support =
733
734
735 * 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.
736
737 * 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]].
738
739 (% style="display:none" %) (%%)