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Version 82.6 by Xiaoling on 2023/08/19 13:55
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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
302
303 === 2.2.2 HEX format Payload(Type~=0) ===
304
305
306 This is the HEX Format. As below:
307
308 (% style="color:#4472c4" %)**f86620705346276200640cba16010000000011011801e864d49c2d011a01e364d49925011901eb64d49871011901e564d497bd011a01e664d49709011901e964d49655011a01e864d495a1011a01e864d494ed011801e864d49439**
309
310 [[image:1692424009971-458.png]]
311
312
313 (% style="color:blue" %)**Version:**
314
315 These bytes include the hardware and software version.
316
317 (% style="color:#037691" %)**Higher byte:**(%%) Specify Sensor Model: 0x00 for S31B-NB & S31-NB
318
319 (% style="color:#037691" %)**Lower byte:**(%%) Specify the software version: 0x64=100, means firmware version 100
320
321
322 (% style="color:blue" %)**BAT (Battery Info):**
323
324 Ex1: 0x0CBA = 3258mV
325
326
327 (% style="color:blue" %)**Signal Strength:**
328
329 NB-IoT Network signal Strength.
330
331 **Ex1: 0x16 = 22**
332
333 **0**  -113dBm or less
334
335 **1**  -111dBm
336
337 **2...30** -109dBm... -53dBm
338
339 **31**   -51dBm or greater
340
341 **99**    Not known or not detectable
342
343
344 (% style="color:blue" %)**Temperature: **
345
346 If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
347
348 If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
349
350 (FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative)
351
352
353 (% style="color:blue" %)**Humidity:   **
354
355 Read:0295(H)=661(D)    Value:  661 / 10=66.1, So 66.1%
356
357
358 (% style="color:blue" %)**TimeStamp:   **
359
360 Unit TimeStamp Example: 64d49439(H) = 1691653177(D)
361
362 Put the decimal value into this link(https:~/~/www.epochconverter.com/) to get the time.
363
364
365 === 2.2.3 ThingsBoard Payload(Type~=3) ===
366
367
368 Type3 payload special design for ThingsBoard, it will also configure other default server to ThingsBoard.
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 As below:
381
382 (% style="color:#4472c4" %)**field1=27.9&field2=49.9&field3=3.23&field4=28**
383
384
385 == 2.3 Test Uplink and Change Update Interval ==
386
387
388 By default, Sensor will send uplinks (% style="color:blue" %)**every 2 hours**(%%) & AT+NOUD=8
389
390 User can use below commands to change the (% style="color:blue" %)**uplink interval**.
391
392 (% style="color:#037691" %)**AT+TDC=600 ** (%%) ~/~/ Set Update Interval to 600s
393
394 User can also push the button for more than 1 seconds to activate an uplink.
395
396
397 == 2.4 Multi-Samplings and One uplink ==
398
399
400 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:
401
402 * (% 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)
403
404 * (% 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.
405
406 The diagram below explains the relationship between TR, NOUD, and TDC more clearly:
407
408 [[image:1692424376354-959.png]]
409
410
411 == 2.5 Humidity and Temperature alarm function ==
412
413
414 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.
415
416
417 (% style="color:blue" %)**AT Commands:**
418
419 (% style="color:#037691" %)**AT+ SHHUM=min,max**
420
421 Example: AT+ SHHUM=50,80  ~/~/ Alarm when humidity lower than 50 or higher than 80.
422
423
424 (% style="color:#037691" %)**AT+ SHTEMP=min,max**
425
426 Example: AT+ SHTEMP=20,30  ~/~/ Alarm when temperature lower than 20 or higher than 30
427
428
429 (% style="color:red" %)**Notice:**
430
431 * To disable Alarm, user can set min and max to same value , such as (% style="color:#037691" %)**AT+SHTEMP=0,0.**
432
433 * 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.**
434
435
436
437 == 2.6 Trggier an uplink by external interrupt ==
438
439
440 S31-NB has an external trigger interrupt function. Users can use the PB15 pin to trigger the upload of data packets.
441
442 (% style="color:blue" %)**AT command:**
443
444 * (% style="color:#037691" %)**AT+INTMOD **(%%) ~/~/ Set the trigger interrupt mode
445
446 * (% style="color:#037691" %)**AT+INTMOD=0 **(%%) ~/~/ Disable Interrupt
447
448 * (% style="color:#037691" %)**AT+INTMOD=1 **(%%) ~/~/ Trigger by rising and falling edge
449
450 * (% style="color:#037691" %)**AT+INTMOD=2 **(%%) ~/~/ Trigger by falling edge
451
452 * (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
453
454
455 = 3. Configure S31x-NB =
456
457 == 3.1 Configure Methods ==
458
459
460 S31x-NB supports below configure method:
461
462 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
463
464 * 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]].
465
466 * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
467
468
469 == 3.2 General Commands ==
470
471
472 These commands are to configure:
473
474 * General system settings like: uplink interval.
475 * LoRaWAN protocol & radio related command.
476
477 They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
478
479 [[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/]]
480
481
482 == 3.3 Commands special design for S31x-LB ==
483
484
485 These commands only valid for S31x-LB, as below:
486
487
488 === 3.3.1 Set Transmit Interval Time ===
489
490
491 Feature: Change LoRaWAN End Node Transmit Interval.
492
493 (% style="color:blue" %)**AT Command: AT+TDC**
494
495 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
496 |=(% 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**
497 |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
498 30000
499 OK
500 the interval is 30000ms = 30s
501 )))
502 |(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((
503 OK
504 Set transmit interval to 60000ms = 60 seconds
505 )))
506
507 (% style="color:blue" %)**Downlink Command: 0x01**
508
509 Format: Command Code (0x01) followed by 3 bytes time value.
510
511 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
512
513 * Example 1: Downlink Payload: 0100001E  ~/~/  Set Transmit Interval (TDC) = 30 seconds
514 * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
515
516 === 3.3.2 Get Device Status ===
517
518
519 Send a LoRaWAN downlink to ask device send Alarm settings.
520
521 (% style="color:blue" %)**Downlink Payload:  **(%%)0x26 01
522
523 Sensor will upload Device Status via FPORT=5. See payload section for detail.
524
525
526 === 3.3.3 Set Temperature Alarm Threshold ===
527
528
529 * (% style="color:blue" %)**AT Command:**
530
531 (% style="color:#037691" %)**AT+SHTEMP=min,max**
532
533 * When min=0, and max≠0, Alarm higher than max
534 * When min≠0, and max=0, Alarm lower than min
535 * When min≠0 and max≠0, Alarm higher than max or lower than min
536
537 Example:
538
539 AT+SHTEMP=0,30   ~/~/ Alarm when temperature higher than 30.
540
541 * (% style="color:blue" %)**Downlink Payload:**
542
543 (% style="color:#037691" %)**0x(0C 01 00 1E)**  (%%) ~/~/ Set AT+SHTEMP=0,30
544
545 (% style="color:red" %)**(note: 3^^rd^^ byte= 0x00 for low limit(not set), 4^^th^^ byte = 0x1E for high limit: 30)**
546
547
548 === 3.3.4 Set Humidity Alarm Threshold ===
549
550
551 * (% style="color:blue" %)**AT Command:**
552
553 (% style="color:#037691" %)**AT+SHHUM=min,max**
554
555 * When min=0, and max≠0, Alarm higher than max
556 * When min≠0, and max=0, Alarm lower than min
557 * When min≠0 and max≠0, Alarm higher than max or lower than min
558
559 Example:
560
561 AT+SHHUM=70,0  ~/~/ Alarm when humidity lower than 70%.
562
563 * (% style="color:blue" %)**Downlink Payload:**
564
565 (% style="color:#037691" %)**0x(0C 02 46 00)**(%%)  ~/~/ Set AT+SHTHUM=70,0
566
567 (% style="color:red" %)**(note: 3^^rd^^ byte= 0x46 for low limit (70%), 4^^th^^ byte = 0x00 for high limit (not set))**
568
569
570 === 3.3.5 Set Alarm Interval ===
571
572
573 The shortest time of two Alarm packet. (unit: min)
574
575 * (% style="color:blue" %)**AT Command:**
576
577 (% 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.
578
579 * (% style="color:blue" %)**Downlink Payload:**
580
581 (% style="color:#037691" %)**0x(0D 00 1E)**(%%)     **~-~--> ** Set AT+ATDC=0x 00 1E = 30 minutes
582
583
584 === 3.3.6 Get Alarm settings ===
585
586
587 Send a LoRaWAN downlink to ask device send Alarm settings.
588
589 * (% style="color:#037691" %)**Downlink Payload:  **(%%)0x0E 01
590
591 **Example:**
592
593 [[image:image-20230524110211-4.png]]
594
595 **Explain:**
596
597 * Alarm & MOD bit is 0x7C, 0x7C >> 2 = 0x31: Means this message is the Alarm settings message.
598
599 === 3.3.7 Set Interrupt Mode ===
600
601
602 Feature, Set Interrupt mode for PA8 of pin.
603
604 When AT+INTMOD=0 is set, PA8 is used as a digital input port.
605
606 (% style="color:blue" %)**AT Command: AT+INTMOD**
607
608 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
609 |=(% 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**
610 |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
611 0
612 OK
613 the mode is 0 =Disable Interrupt
614 )))
615 |(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
616 Set Transmit Interval
617 0. (Disable Interrupt),
618 ~1. (Trigger by rising and falling edge)
619 2. (Trigger by falling edge)
620 3. (Trigger by rising edge)
621 )))|(% style="width:157px" %)OK
622
623 (% style="color:blue" %)**Downlink Command: 0x06**
624
625 Format: Command Code (0x06) followed by 3 bytes.
626
627 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
628
629 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
630 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
631
632 === 3.3.8 Set Power Output Duration ===
633
634
635 Control the output duration 5V . Before each sampling, device will
636
637 ~1. first enable the power output to external sensor,
638
639 2. keep it on as per duration, read sensor value and construct uplink payload
640
641 3. final, close the power output.
642
643 (% style="color:blue" %)**AT Command: AT+5VT**
644
645 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
646 |=(% 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**
647 |(% style="width:154px" %)AT+5VT=?|(% style="width:196px" %)Show 5V open time.|(% style="width:157px" %)0 (default)
648 OK
649 |(% style="width:154px" %)AT+5VT=1000|(% style="width:196px" %)Close after a delay of 1000 milliseconds.|(% style="width:157px" %)OK
650
651 (% style="color:blue" %)**Downlink Command: 0x07**
652
653 Format: Command Code (0x07) followed by 2 bytes.
654
655 The first and second bytes are the time to turn on.
656
657 * Example 1: Downlink Payload: 070000  **~-~-->**  AT+5VT=0
658 * Example 2: Downlink Payload: 0701F4  **~-~-->**  AT+5VT=500
659
660 = 4. Battery & Power Consumption =
661
662
663 S31x-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
664
665 [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
666
667
668 = 5. OTA Firmware update =
669
670
671 (% class="wikigeneratedid" %)
672 User can change firmware S31x-LB to:
673
674 * Change Frequency band/ region.
675 * Update with new features.
676 * Fix bugs.
677
678 Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/fis3g6nmhv0eokg/AAC6BcCZaX4BdqZkduUvZ3jIa?dl=0]]**
679
680
681 Methods to Update Firmware:
682
683 * (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/]]**
684 * 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]]**.
685
686 = 6. FAQ =
687
688
689
690 = 7. Order Info =
691
692
693 Part Number: (% style="color:blue" %)**S31-LB-XX  / S31B-LB-XX**
694
695 (% style="color:red" %)**XX**(%%): The default frequency band
696
697 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
698
699 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
700
701 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
702
703 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
704
705 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
706
707 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
708
709 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
710
711 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
712
713 = 8. ​Packing Info =
714
715
716 (% style="color:#037691" %)**Package Includes**:
717
718 * S31x-LB LoRaWAN Temperature & Humidity Sensor
719
720 (% style="color:#037691" %)**Dimension and weight**:
721
722 * Device Size: cm
723
724 * Device Weight: g
725
726 * Package Size / pcs : cm
727
728 * Weight / pcs : g
729
730 = 9. Support =
731
732
733 * 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.
734
735 * 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]].
736
737 (% style="display:none" %) (%%)