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Version 84.3 by Xiaoling on 2023/09/11 14:14
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1 (% style="text-align:center" %)
2 [[image:image-20230911134259-1.png||height="570" width="570"]]
3
4
5 **Table of Contents:**
6
7 {{toc/}}
8
9
10
11
12
13
14 = 1. Introduction =
15
16 == 1.1 What is DDS20-NB NB-IoT Ultrasonic liquid level Sensor ==
17
18
19 The Dragino DDS20-NB is a **NB-IoT Ultrasonic liquid level sensor** for Internet of Things solution. It uses **none-contact method **to measure the **height of liquid** in a container without opening the container, and send IoT platform via NB-IoT network.
20
21 The DDS20-NB sensor is installed directly below the container to detect the height of the liquid level. User doesn't need to open a hole on the container to be tested. The none-contact measurement makes the measurement safety, easier and possible for some strict situation. 
22
23 DDS20-NB uses **ultrasonic sensing technology** for distance measurement. DDS20-NB is of high accuracy to measure various liquid such as: **toxic substances**, **strong acids**, **strong alkalis** and **various pure liquids** in high-temperature and high-pressure airtight containers.
24
25 PS-NB-NA supports different uplink methods including **MQTT, MQTTs, UDP & TCP** for different application requirement, and support uplinks to various IoT Servers.
26
27 PS-NB-NA **supports BLE configure **and** OTA update** which make user easy to use.
28
29 PS-NB-NA is powered by **8500mAh Li-SOCI2 battery**, it is designed for long-term use up to severa years.
30
31 PS-NB-NA has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.
32
33
34 [[image:image-20230911140426-2.png||height="320" width="951"]]
35
36
37 == 1.2 ​Features ==
38
39
40 * NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
41 * Ultra-low power consumption
42 * External 3 meters SHT31 probe (For S31-NB)
43 * Measure range -40°C ~~ 85°C
44 * Temperature & Humidity alarm
45 * Multiply Sampling and one uplink
46 * Support Bluetooth v5.1 remote configure and update firmware
47 * Uplink on periodically
48 * Downlink to change configure
49 * 8500mAh Battery for long term use
50 * Nano SIM card slot for NB-IoT SIM
51
52 == 1.3 Specification ==
53
54
55 (% style="color:blue" %)**Common DC Characteristics:**
56
57 * Supply Voltage: 2.1v ~~ 3.6v
58 * Operating Temperature: -40 ~~ 85°C
59
60 (% style="color:blue" %)**Temperature Sensor:**
61
62 * Range: -40 to + 80°C
63 * Accuracy: ±0.2 @ 0-90 °C
64 * Resolution: 0.1°C
65 * Long Term Shift: <0.03 °C/yr
66
67 (% style="color:blue" %)**Humidity Sensor: **
68
69 * Range: 0 ~~ 99.9% RH
70 * Accuracy: ± 2%RH ( 0 ~~ 100%RH)
71 * Resolution: 0.01% RH
72 * Long Term Shift: <0.25 %RH/yr
73
74 (% style="color:blue" %)**NB-IoT Spec:**
75
76 (% style="color:#037691" %)**NB-IoT Module: BC660K-GL**
77
78 (% style="color:#037691" %)**Support Bands:**
79
80 * B1 @H-FDD: 2100MHz
81 * B2 @H-FDD: 1900MHz
82 * B3 @H-FDD: 1800MHz
83 * B4 @H-FDD: 2100MHz
84 * B5 @H-FDD: 860MHz
85 * B8 @H-FDD: 900MHz
86 * B12 @H-FDD: 720MHz
87 * B13 @H-FDD: 740MHz
88 * B17 @H-FDD: 730MHz
89 * B18 @H-FDD: 870MHz
90 * B19 @H-FDD: 870MHz
91 * B20 @H-FDD: 790MHz
92 * B25 @H-FDD: 1900MHz
93 * B28 @H-FDD: 750MHz
94 * B66 @H-FDD: 2000MHz
95 * B70 @H-FDD: 2000MHz
96 * B85 @H-FDD: 700MHz
97
98 (% style="color:blue" %)**Battery:**
99
100 * Li/SOCI2 un-chargeable battery
101 * Capacity: 8500mAh
102 * Self Discharge: <1% / Year @ 25°C
103 * Max continuously current: 130mA
104 * Max boost current: 2A, 1 second
105
106 (% style="color:blue" %)**Power Consumption**
107
108 * STOP Mode: 10uA @ 3.3v
109 * Max transmit power: 350mA@3.3v
110
111 == 1.4 Applications ==
112
113
114 * Smart Buildings & Home Automation
115 * Logistics and Supply Chain Management
116 * Smart Metering
117 * Smart Agriculture
118 * Smart Cities
119 * Smart Factory
120
121 == 1.5 Sleep mode and working mode ==
122
123
124 (% 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.
125
126 (% 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.
127
128
129 == 1.6 Button & LEDs ==
130
131
132 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
133
134
135 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
136 |=(% 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**
137 |(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
138 If sensor has already attached to NB-IoT network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
139 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
140 )))
141 |(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
142 (% 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.
143 (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
144 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.
145 )))
146 |(% 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.
147
148 == 1.7 BLE connection ==
149
150
151 S31x-NB support BLE remote configure and firmware update.
152
153
154 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:
155
156 * Press button to send an uplink
157 * Press button to active device.
158 * Device Power on or reset.
159
160 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
161
162
163 == 1.8 Pin Definitions & Switch ==
164
165
166 S31x-NB use the mother board from S31-NB which as below.
167
168 [[image:image-20230819104805-5.png]]
169
170
171 === 1.8.1 Jumper JP2 ===
172
173
174 Power on Device when put this jumper.
175
176
177 === 1.8.2 BOOT MODE / SW1 ===
178
179
180 **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.
181
182 **2)** (% style="color:blue" %)**Flash**(%%): work mode, device starts to work and send out console output for further debug
183
184
185 === 1.8.3 Reset Button ===
186
187
188 Press to reboot the device.
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-NB
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-NB
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 = 2. Use S31-NB to communicate with IoT Server =
224
225 == 2.1 Send data to IoT server via NB-IoT network ==
226
227
228 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.
229
230
231 Below shows the network structure:
232
233 [[image:1692415924540-357.png]]
234
235
236 There are two version: (% style="color:blue" %)**-GE**(%%) and (% style="color:blue" %)**-1D**(%%) version of S31-NB.
237
238
239 (% 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.
240
241 * 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]].
242
243 * 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]]. 
244
245 Below shows result of different server as a glance.
246
247 (% border="1" cellspacing="4" style="width:515px" %)
248 |(% 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**
249 |(% 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" %)(((
250 (% style="text-align:center" %)
251 [[image:image-20230819113244-8.png||height="183" width="367"]]
252 )))|(% style="width:170px" %)
253 |(% 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" %)(((
254 (% style="text-align:center" %)
255 [[image:image-20230819113244-9.png||height="119" width="367"]]
256 )))|(% style="width:170px" %)
257 |(% 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" %)
258 |(% 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" %)
259 |(% 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" %)
260 |(% 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" %)(((
261 (% style="text-align:center" %)
262 [[image:image-20230819113244-10.png||height="104" width="367"]]
263 )))|(% style="width:170px" %)
264 |(% 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" %)(((
265 (% style="text-align:center" %)
266 [[image:image-20230819113244-11.png||height="141" width="367"]]
267 )))|(% style="width:170px" %)
268
269 (% 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]].
270
271
272 == 2.2 ​Payload Types ==
273
274
275 To meet different server requirement, S31-NB supports different payload type.
276
277 **Includes:**
278
279 * [[General JSON format payload>>||anchor="H2.2.1GeneralJsonFormat28Type3D529"]]. (Type=5)
280
281 * [[HEX format Payload>>||anchor="H2.2.2HEXformatPayload28Type3D029"]]. (Type=0)
282
283 * [[ThingSpeak Format>>||anchor="H2.2.4ThingSpeakPayload28Type3D129"]]. (Type=1)
284
285 * [[ThingsBoard Format>>||anchor="H2.2.3ThingsBoardPayload28Type3D329"]]. (Type=3)
286
287 User can specify the payload type when choose the connection protocol. Example:
288
289 (% style="color:#037691" %)**AT+PRO=2,0**  (%%) ~/~/ Use UDP Connection & hex Payload
290
291 (% style="color:#037691" %)**AT+PRO=2,5**   (%%) ~/~/ Use UDP Connection & Json Payload
292
293 (% style="color:#037691" %)**AT+PRO=3,5 ** (%%) ~/~/ Use MQTT Connection & Json Payload
294
295
296 === 2.2.1 General Json Format(Type~=5) ===
297
298
299 This is the General Json Format. As below:
300
301 (% 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}}**
302
303
304 (% style="color:red" %)**Notice, from above payload:**
305
306 * Temperature , Humidity , Battery & Signal are the value at uplink time.
307
308 * 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.
309
310 === 2.2.2 HEX format Payload(Type~=0) ===
311
312
313 This is the HEX Format. As below:
314
315 (% style="color:#4472c4" %)**f86620705346276200640cba16010000000011011801e864d49c2d011a01e364d49925011901eb64d49871011901e564d497bd011a01e664d49709011901e964d49655011a01e864d495a1011a01e864d494ed011801e864d49439**
316
317 [[image:1692424009971-458.png]]
318
319
320 (% style="color:blue" %)**Version:**
321
322 These bytes include the hardware and software version.
323
324 (% style="color:#037691" %)**Higher byte:**(%%) Specify Sensor Model: 0x00 for S31B-NB & S31-NB
325
326 (% style="color:#037691" %)**Lower byte:**(%%) Specify the software version: 0x64=100, means firmware version 100
327
328
329 (% style="color:blue" %)**BAT (Battery Info):**
330
331 Ex1: 0x0CBA = 3258mV
332
333
334 (% style="color:blue" %)**Signal Strength:**
335
336 NB-IoT Network signal Strength.
337
338 **Ex1: 0x16 = 22**
339
340 **0**  -113dBm or less
341
342 **1**  -111dBm
343
344 **2...30** -109dBm... -53dBm
345
346 **31**   -51dBm or greater
347
348 **99**    Not known or not detectable
349
350
351 (% style="color:blue" %)**Temperature: **
352
353 If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
354
355 If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
356
357 (FF3F & 8000: Judge whether the highest bit is 1, when the highest bit is 1, it is negative)
358
359
360 (% style="color:blue" %)**Humidity:   **
361
362 Read:0295(H)=661(D)    Value:  661 / 10=66.1, So 66.1%
363
364
365 (% style="color:blue" %)**TimeStamp:   **
366
367 Unit TimeStamp Example: 64d49439(H) = 1691653177(D)
368
369 Put the decimal value into this link(https:~/~/www.epochconverter.com/) to get the time.
370
371
372 === 2.2.3 ThingsBoard Payload(Type~=3) ===
373
374
375 Type3 payload special design for ThingsBoard, it will also configure other default server to ThingsBoard.
376
377 (% style="color:#4472c4" %)**{"IMEI":866207053462762,"temperature":29.2,"humidity":54.2,"battery":3.27,"signal":24}**
378
379
380 === 2.2.4 ThingSpeak Payload(Type~=1) ===
381
382
383 This payload meets ThingSpeak platform requirement. It includes only four fields. Form 1~~4 are:
384
385 Temperature, Humidity, Battery & Signal. This payload type only valid for ThingsSpeak Platform
386
387 As below:
388
389 (% style="color:#4472c4" %)**field1=27.9&field2=49.9&field3=3.23&field4=28**
390
391
392 == 2.3 Test Uplink and Change Update Interval ==
393
394
395 By default, Sensor will send uplinks (% style="color:blue" %)**every 2 hours**(%%) & AT+NOUD=8
396
397 User can use below commands to change the (% style="color:blue" %)**uplink interval**.
398
399 (% style="color:#037691" %)**AT+TDC=600 ** (%%) ~/~/ Set Update Interval to 600s
400
401 User can also push the button for more than 1 seconds to activate an uplink.
402
403
404 == 2.4 Multi-Samplings and One uplink ==
405
406
407 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:
408
409 * (% 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)
410
411 * (% 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.
412
413 The diagram below explains the relationship between TR, NOUD, and TDC more clearly:
414
415 [[image:1692424376354-959.png]]
416
417
418 == 2.5 Humidity and Temperature alarm function ==
419
420
421 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.
422
423
424 (% style="color:blue" %)**AT Commands:**
425
426 (% style="color:#037691" %)**AT+ SHHUM=min,max**
427
428 Example: AT+ SHHUM=50,80  ~/~/ Alarm when humidity lower than 50 or higher than 80.
429
430
431 (% style="color:#037691" %)**AT+ SHTEMP=min,max**
432
433 Example: AT+ SHTEMP=20,30  ~/~/ Alarm when temperature lower than 20 or higher than 30
434
435
436 (% style="color:red" %)**Notice:**
437
438 * To disable Alarm, user can set min and max to same value , such as (% style="color:#037691" %)**AT+SHTEMP=0,0.**
439
440 * 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.**
441
442 == 2.6 Trggier an uplink by external interrupt ==
443
444
445 S31-NB has an external trigger interrupt function. Users can use the PB15 pin to trigger the upload of data packets.
446
447 (% style="color:blue" %)**AT command:**
448
449 * (% style="color:#037691" %)**AT+INTMOD **(%%) ~/~/ Set the trigger interrupt mode
450
451 * (% style="color:#037691" %)**AT+INTMOD=0 **(%%) ~/~/ Disable Interrupt
452
453 * (% style="color:#037691" %)**AT+INTMOD=1 **(%%) ~/~/ Trigger by rising and falling edge
454
455 * (% style="color:#037691" %)**AT+INTMOD=2 **(%%) ~/~/ Trigger by falling edge
456
457 * (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
458
459 = 3. Configure S31x-NB =
460
461 == 3.1 Configure Methods ==
462
463
464 S31x-NB supports below configure method:
465
466 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
467
468 * 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]].
469
470 == 3.2 AT Commands Set ==
471
472
473 AT+<CMD>?        : Help on <CMD>
474
475 AT+<CMD>         : Run <CMD>
476
477 AT+<CMD>=<value> : Set the value
478
479 AT+<CMD>=?       : Get the value
480
481
482 (% style="color:blue" %)**General Commands**      
483
484 AT                    : Attention       
485
486 AT?  : Short Help     
487
488 ATZ  : MCU Reset    
489
490 AT+TDC  : Application Data Transmission Interval
491
492 AT+CFG  : Print all configurations
493
494 AT+CFGMOD           : Working mode selection
495
496 AT+DEUI  : Get or set the Device ID
497
498 AT+INTMOD            : Set the trigger interrupt mode
499
500 AT+5VT           : Set extend the time of 5V power  
501
502 AT+PRO          : Choose agreement
503
504 AT+RXDL  : Extend the sending and receiving time
505
506 AT+DNSCFG  : Get or Set DNS Server
507
508 AT+GETSENSORVALUE   : Returns the current sensor measurement
509
510 AT+NOUD  : Get or Set the number of data to be uploaded
511
512 AT+CDP     : Read or Clear cached data
513
514 AT+SHTEMP:  Get or Set alarm of temp
515
516 AT+SHHUM:  Get or Set alarm of moisture
517
518 AT+SERVADDR :  Server Address
519
520
521 (% style="color:blue" %)**UDP Management**
522
523 AT+CFM  :  Upload confirmation mode (only valid for UDP)
524
525
526 (% style="color:blue" %)**MQTT Management**
527
528 AT+CLIENT               : Get or Set MQTT client
529
530 AT+UNAME              : Get or Set MQTT Username
531
532 AT+PWD                  : Get or Set MQTT password
533
534 AT+PUBTOPIC  : Get or Set MQTT publish topic
535
536 AT+SUBTOPIC  : Get or Set MQTT subscription topic
537
538
539 (% style="color:blue" %)**Information**          
540
541 AT+FDR  : Factory Data Reset
542
543 AT+PWORD  : Serial Access Password
544
545 AT+LDATA  : Get the last upload data
546
547 AT+CDP  : Read or Clear cached data
548
549
550 = 4. Battery & Power Consumption =
551
552
553 S31x-NB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
554
555 [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
556
557
558 = 5. Firmware update =
559
560
561 User can change device firmware to::
562
563 * Update with new features.
564
565 * Fix bugs.
566
567 Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/fhb3uyl4gt6clru/AAAiZVTFcxrfE1JOOyfcgO9ha?dl=0]]**
568
569 Methods to Update Firmware:
570
571 * (Recommended way) OTA firmware update via BLE: [[**Instruction**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/BLE_Firmware_Update_NB_Sensors_BC660K-GL/]].
572
573 * 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]]**.
574
575 = 6. FAQ =
576
577 == 6.1 How can I access t BC660K-GL AT Commands? ==
578
579
580 User can access to BC660K-GL directly and send AT Commands.
581
582 [[See BC660K-GL AT Command set>>url:https://www.dropbox.com/sh/5f6ssda5fum8rvs/AABT68l8ZzWOvZ5eg2qwOoFda?dl=0]]
583
584
585 = 7. Order Info =
586
587
588 Part Number: (% style="color:blue" %)**S31-NB-XX  / S31B-NB-XX**
589
590 (% style="color:red" %)**XX**(%%):
591
592 * (% style="color:#037691" %)**GE**(%%): General version ( Exclude SIM card)
593
594 * (% style="color:#037691" %)**1D**(%%): with 1NCE* 10 years 500MB SIM card and Pre-configure to DataCake server
595
596 (% style="color:#037691" %)**1NCE SIM Card NB-IoT network coverage**(%%): Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Finland, Germany, Great Britain, Greece, Hungary, Ireland, Italy, Latvia, Malta, Netherlands, Norway, Puerto Rico, Russia, Slovak , Republic, Slovenia, Spain, Sweden, Switzerland, Taiwan, USA, US Virgin Islands
597
598
599 = 8. ​Packing Info =
600
601
602 (% style="color:#037691" %)**Package Includes**:
603
604 * S31-NB or S31-NB NB-IoT Sensor Node x 1
605
606 * External antenna x 1
607
608 (% style="color:#037691" %)**Dimension and weight**:
609
610 * Device Size: 13.0 x 5 x 4.5 cm
611
612 * Device Weight: 150g
613
614 * Package Size / pcs : 14.0 x 8x 5 cm
615
616 * Weight / pcs : 180g
617
618 = 9. Support =
619
620
621 * 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.
622
623 * 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]].
624
625 (% style="display:none" %) (%%)