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Version 84.4 by Xiaoling on 2023/09/11 14:25
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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 * Liquid Level Measurement by Ultrasonic technology
43 * Measure through container, No need to contact Liquid
44 * Valid level range 20mm - 2000mm
45 * Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
46 * Multiply Sampling and one uplink
47 * Support Bluetooth v5.1 remote configure and update firmware
48 * Uplink on periodically
49 * Downlink to change configure
50 * IP66 Waterproof Enclosure
51 * 8500mAh Battery for long term use
52 * Nano SIM card slot for NB-IoT SIM
53
54 == 1.3 Specification ==
55
56
57 (% style="color:blue" %)**Common DC Characteristics:**
58
59 * Supply Voltage: 2.5v ~~ 3.6v
60 * Operating Temperature: -40 ~~ 85°C
61
62 (% style="color:blue" %)**NB-IoT Spec:**
63
64 (% style="color:#037691" %)**NB-IoT Module: BC660K-GL**
65
66 (% style="color:#037691" %)**Support Bands:**
67
68 * B1 @H-FDD: 2100MHz
69 * B2 @H-FDD: 1900MHz
70 * B3 @H-FDD: 1800MHz
71 * B4 @H-FDD: 2100MHz
72 * B5 @H-FDD: 860MHz
73 * B8 @H-FDD: 900MHz
74 * B12 @H-FDD: 720MHz
75 * B13 @H-FDD: 740MHz
76 * B17 @H-FDD: 730MHz
77 * B18 @H-FDD: 870MHz
78 * B19 @H-FDD: 870MHz
79 * B20 @H-FDD: 790MHz
80 * B25 @H-FDD: 1900MHz
81 * B28 @H-FDD: 750MHz
82 * B66 @H-FDD: 2000MHz
83 * B70 @H-FDD: 2000MHz
84 * B85 @H-FDD: 700MHz
85
86 (% style="color:blue" %)**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:blue" %)**Power Consumption**
95
96 * STOP Mode: 10uA @ 3.3v
97 * Max transmit power: 350mA@3.3v
98
99 == 1.4 Applications ==
100
101
102 * Smart Buildings & Home Automation
103 * Logistics and Supply Chain Management
104 * Smart Metering
105 * Smart Agriculture
106 * Smart Cities
107 * Smart Factory
108
109 == 1.5 Sleep mode and working mode ==
110
111
112 (% 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.
113
114 (% 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.
115
116
117 == 1.6 Button & LEDs ==
118
119
120 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
121
122
123 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
124 |=(% 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**
125 |(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
126 If sensor has already attached to NB-IoT network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
127 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
128 )))
129 |(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
130 (% 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.
131 (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
132 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.
133 )))
134 |(% 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.
135
136 == 1.7 BLE connection ==
137
138
139 S31x-NB support BLE remote configure and firmware update.
140
141
142 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:
143
144 * Press button to send an uplink
145 * Press button to active device.
146 * Device Power on or reset.
147
148 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
149
150
151 == 1.8 Pin Definitions & Switch ==
152
153
154 S31x-NB use the mother board from S31-NB which as below.
155
156 [[image:image-20230819104805-5.png]]
157
158
159 === 1.8.1 Jumper JP2 ===
160
161
162 Power on Device when put this jumper.
163
164
165 === 1.8.2 BOOT MODE / SW1 ===
166
167
168 **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.
169
170 **2)** (% style="color:blue" %)**Flash**(%%): work mode, device starts to work and send out console output for further debug
171
172
173 === 1.8.3 Reset Button ===
174
175
176 Press to reboot the device.
177
178
179 == 1.9 Hardware Variant ==
180
181
182 (% border="1" cellspacing="5" style="width:410px" %)
183 |=(% 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
184 |(% style="width:102px" %)(((
185 S31-NB
186 )))|(% style="width:126px" %)(((
187 (% style="text-align:center" %)
188 [[image:image-20230819110632-6.png||height="130" width="104"]]
189 )))|(% style="width:179px" %)(((
190 1 x SHT31 Probe
191
192 Cable Length : 3 meters
193
194
195 )))
196 |(% style="width:102px" %)(((
197 S31B-NB
198 )))|(% style="width:126px" %)(((
199 (% style="text-align:center" %)
200 [[image:image-20230819110702-7.png||height="164" width="90"]]
201 )))|(% style="width:179px" %)(((
202 1 x SHT31 Probe
203
204 Installed in device.
205 )))
206
207 (% style="display:none" %)
208
209
210
211 = 2. Use S31-NB to communicate with IoT Server =
212
213 == 2.1 Send data to IoT server via NB-IoT network ==
214
215
216 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.
217
218
219 Below shows the network structure:
220
221 [[image:1692415924540-357.png]]
222
223
224 There are two version: (% style="color:blue" %)**-GE**(%%) and (% style="color:blue" %)**-1D**(%%) version of S31-NB.
225
226
227 (% 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.
228
229 * 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]].
230
231 * 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]]. 
232
233 Below shows result of different server as a glance.
234
235 (% border="1" cellspacing="4" style="width:515px" %)
236 |(% 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**
237 |(% 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" %)(((
238 (% style="text-align:center" %)
239 [[image:image-20230819113244-8.png||height="183" width="367"]]
240 )))|(% style="width:170px" %)
241 |(% 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" %)(((
242 (% style="text-align:center" %)
243 [[image:image-20230819113244-9.png||height="119" width="367"]]
244 )))|(% style="width:170px" %)
245 |(% 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" %)
246 |(% 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" %)
247 |(% 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" %)
248 |(% 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" %)(((
249 (% style="text-align:center" %)
250 [[image:image-20230819113244-10.png||height="104" width="367"]]
251 )))|(% style="width:170px" %)
252 |(% 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" %)(((
253 (% style="text-align:center" %)
254 [[image:image-20230819113244-11.png||height="141" width="367"]]
255 )))|(% style="width:170px" %)
256
257 (% 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]].
258
259
260 == 2.2 ​Payload Types ==
261
262
263 To meet different server requirement, S31-NB supports different payload type.
264
265 **Includes:**
266
267 * [[General JSON format payload>>||anchor="H2.2.1GeneralJsonFormat28Type3D529"]]. (Type=5)
268
269 * [[HEX format Payload>>||anchor="H2.2.2HEXformatPayload28Type3D029"]]. (Type=0)
270
271 * [[ThingSpeak Format>>||anchor="H2.2.4ThingSpeakPayload28Type3D129"]]. (Type=1)
272
273 * [[ThingsBoard Format>>||anchor="H2.2.3ThingsBoardPayload28Type3D329"]]. (Type=3)
274
275 User can specify the payload type when choose the connection protocol. Example:
276
277 (% style="color:#037691" %)**AT+PRO=2,0**  (%%) ~/~/ Use UDP Connection & hex Payload
278
279 (% style="color:#037691" %)**AT+PRO=2,5**   (%%) ~/~/ Use UDP Connection & Json Payload
280
281 (% style="color:#037691" %)**AT+PRO=3,5 ** (%%) ~/~/ Use MQTT Connection & Json Payload
282
283
284 === 2.2.1 General Json Format(Type~=5) ===
285
286
287 This is the General Json Format. As below:
288
289 (% 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}}**
290
291
292 (% style="color:red" %)**Notice, from above payload:**
293
294 * Temperature , Humidity , Battery & Signal are the value at uplink time.
295
296 * 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.
297
298 === 2.2.2 HEX format Payload(Type~=0) ===
299
300
301 This is the HEX Format. As below:
302
303 (% style="color:#4472c4" %)**f86620705346276200640cba16010000000011011801e864d49c2d011a01e364d49925011901eb64d49871011901e564d497bd011a01e664d49709011901e964d49655011a01e864d495a1011a01e864d494ed011801e864d49439**
304
305 [[image:1692424009971-458.png]]
306
307
308 (% style="color:blue" %)**Version:**
309
310 These bytes include the hardware and software version.
311
312 (% style="color:#037691" %)**Higher byte:**(%%) Specify Sensor Model: 0x00 for S31B-NB & S31-NB
313
314 (% style="color:#037691" %)**Lower byte:**(%%) Specify the software version: 0x64=100, means firmware version 100
315
316
317 (% style="color:blue" %)**BAT (Battery Info):**
318
319 Ex1: 0x0CBA = 3258mV
320
321
322 (% style="color:blue" %)**Signal Strength:**
323
324 NB-IoT Network signal Strength.
325
326 **Ex1: 0x16 = 22**
327
328 **0**  -113dBm or less
329
330 **1**  -111dBm
331
332 **2...30** -109dBm... -53dBm
333
334 **31**   -51dBm or greater
335
336 **99**    Not known or not detectable
337
338
339 (% style="color:blue" %)**Temperature: **
340
341 If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
342
343 If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
344
345 (FF3F & 8000: Judge whether the highest bit is 1, when the highest bit is 1, it is negative)
346
347
348 (% style="color:blue" %)**Humidity:   **
349
350 Read:0295(H)=661(D)    Value:  661 / 10=66.1, So 66.1%
351
352
353 (% style="color:blue" %)**TimeStamp:   **
354
355 Unit TimeStamp Example: 64d49439(H) = 1691653177(D)
356
357 Put the decimal value into this link(https:~/~/www.epochconverter.com/) to get the time.
358
359
360 === 2.2.3 ThingsBoard Payload(Type~=3) ===
361
362
363 Type3 payload special design for ThingsBoard, it will also configure other default server to ThingsBoard.
364
365 (% style="color:#4472c4" %)**{"IMEI":866207053462762,"temperature":29.2,"humidity":54.2,"battery":3.27,"signal":24}**
366
367
368 === 2.2.4 ThingSpeak Payload(Type~=1) ===
369
370
371 This payload meets ThingSpeak platform requirement. It includes only four fields. Form 1~~4 are:
372
373 Temperature, Humidity, Battery & Signal. This payload type only valid for ThingsSpeak Platform
374
375 As below:
376
377 (% style="color:#4472c4" %)**field1=27.9&field2=49.9&field3=3.23&field4=28**
378
379
380 == 2.3 Test Uplink and Change Update Interval ==
381
382
383 By default, Sensor will send uplinks (% style="color:blue" %)**every 2 hours**(%%) & AT+NOUD=8
384
385 User can use below commands to change the (% style="color:blue" %)**uplink interval**.
386
387 (% style="color:#037691" %)**AT+TDC=600 ** (%%) ~/~/ Set Update Interval to 600s
388
389 User can also push the button for more than 1 seconds to activate an uplink.
390
391
392 == 2.4 Multi-Samplings and One uplink ==
393
394
395 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:
396
397 * (% 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)
398
399 * (% 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.
400
401 The diagram below explains the relationship between TR, NOUD, and TDC more clearly:
402
403 [[image:1692424376354-959.png]]
404
405
406 == 2.5 Humidity and Temperature alarm function ==
407
408
409 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.
410
411
412 (% style="color:blue" %)**AT Commands:**
413
414 (% style="color:#037691" %)**AT+ SHHUM=min,max**
415
416 Example: AT+ SHHUM=50,80  ~/~/ Alarm when humidity lower than 50 or higher than 80.
417
418
419 (% style="color:#037691" %)**AT+ SHTEMP=min,max**
420
421 Example: AT+ SHTEMP=20,30  ~/~/ Alarm when temperature lower than 20 or higher than 30
422
423
424 (% style="color:red" %)**Notice:**
425
426 * To disable Alarm, user can set min and max to same value , such as (% style="color:#037691" %)**AT+SHTEMP=0,0.**
427
428 * 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.**
429
430 == 2.6 Trggier an uplink by external interrupt ==
431
432
433 S31-NB has an external trigger interrupt function. Users can use the PB15 pin to trigger the upload of data packets.
434
435 (% style="color:blue" %)**AT command:**
436
437 * (% style="color:#037691" %)**AT+INTMOD **(%%) ~/~/ Set the trigger interrupt mode
438
439 * (% style="color:#037691" %)**AT+INTMOD=0 **(%%) ~/~/ Disable Interrupt
440
441 * (% style="color:#037691" %)**AT+INTMOD=1 **(%%) ~/~/ Trigger by rising and falling edge
442
443 * (% style="color:#037691" %)**AT+INTMOD=2 **(%%) ~/~/ Trigger by falling edge
444
445 * (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
446
447 = 3. Configure S31x-NB =
448
449 == 3.1 Configure Methods ==
450
451
452 S31x-NB supports below configure method:
453
454 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
455
456 * 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]].
457
458 == 3.2 AT Commands Set ==
459
460
461 AT+<CMD>?        : Help on <CMD>
462
463 AT+<CMD>         : Run <CMD>
464
465 AT+<CMD>=<value> : Set the value
466
467 AT+<CMD>=?       : Get the value
468
469
470 (% style="color:blue" %)**General Commands**      
471
472 AT                    : Attention       
473
474 AT?  : Short Help     
475
476 ATZ  : MCU Reset    
477
478 AT+TDC  : Application Data Transmission Interval
479
480 AT+CFG  : Print all configurations
481
482 AT+CFGMOD           : Working mode selection
483
484 AT+DEUI  : Get or set the Device ID
485
486 AT+INTMOD            : Set the trigger interrupt mode
487
488 AT+5VT           : Set extend the time of 5V power  
489
490 AT+PRO          : Choose agreement
491
492 AT+RXDL  : Extend the sending and receiving time
493
494 AT+DNSCFG  : Get or Set DNS Server
495
496 AT+GETSENSORVALUE   : Returns the current sensor measurement
497
498 AT+NOUD  : Get or Set the number of data to be uploaded
499
500 AT+CDP     : Read or Clear cached data
501
502 AT+SHTEMP:  Get or Set alarm of temp
503
504 AT+SHHUM:  Get or Set alarm of moisture
505
506 AT+SERVADDR :  Server Address
507
508
509 (% style="color:blue" %)**UDP Management**
510
511 AT+CFM  :  Upload confirmation mode (only valid for UDP)
512
513
514 (% style="color:blue" %)**MQTT Management**
515
516 AT+CLIENT               : Get or Set MQTT client
517
518 AT+UNAME              : Get or Set MQTT Username
519
520 AT+PWD                  : Get or Set MQTT password
521
522 AT+PUBTOPIC  : Get or Set MQTT publish topic
523
524 AT+SUBTOPIC  : Get or Set MQTT subscription topic
525
526
527 (% style="color:blue" %)**Information**          
528
529 AT+FDR  : Factory Data Reset
530
531 AT+PWORD  : Serial Access Password
532
533 AT+LDATA  : Get the last upload data
534
535 AT+CDP  : Read or Clear cached data
536
537
538 = 4. Battery & Power Consumption =
539
540
541 S31x-NB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
542
543 [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
544
545
546 = 5. Firmware update =
547
548
549 User can change device firmware to::
550
551 * Update with new features.
552
553 * Fix bugs.
554
555 Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/fhb3uyl4gt6clru/AAAiZVTFcxrfE1JOOyfcgO9ha?dl=0]]**
556
557 Methods to Update Firmware:
558
559 * (Recommended way) OTA firmware update via BLE: [[**Instruction**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/BLE_Firmware_Update_NB_Sensors_BC660K-GL/]].
560
561 * 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]]**.
562
563 = 6. FAQ =
564
565 == 6.1 How can I access t BC660K-GL AT Commands? ==
566
567
568 User can access to BC660K-GL directly and send AT Commands.
569
570 [[See BC660K-GL AT Command set>>url:https://www.dropbox.com/sh/5f6ssda5fum8rvs/AABT68l8ZzWOvZ5eg2qwOoFda?dl=0]]
571
572
573 = 7. Order Info =
574
575
576 Part Number: (% style="color:blue" %)**S31-NB-XX  / S31B-NB-XX**
577
578 (% style="color:red" %)**XX**(%%):
579
580 * (% style="color:#037691" %)**GE**(%%): General version ( Exclude SIM card)
581
582 * (% style="color:#037691" %)**1D**(%%): with 1NCE* 10 years 500MB SIM card and Pre-configure to DataCake server
583
584 (% 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
585
586
587 = 8. ​Packing Info =
588
589
590 (% style="color:#037691" %)**Package Includes**:
591
592 * S31-NB or S31-NB NB-IoT Sensor Node x 1
593
594 * External antenna x 1
595
596 (% style="color:#037691" %)**Dimension and weight**:
597
598 * Device Size: 13.0 x 5 x 4.5 cm
599
600 * Device Weight: 150g
601
602 * Package Size / pcs : 14.0 x 8x 5 cm
603
604 * Weight / pcs : 180g
605
606 = 9. Support =
607
608
609 * 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.
610
611 * 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]].
612
613 (% style="display:none" %) (%%)