<
From version < 97.8 >
edited by Xiaoling
on 2022/07/09 11:26
To version < 122.1 >
edited by David Huang
on 2022/09/08 16:31
>
Change comment: There is no comment for this version

Summary

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Title
... ... @@ -1,1 +1,1 @@
1 -NDDS75 NB-IoT Distance Detect Sensor User Manual
1 +N95S31B NB-IoT Temperature & Humidity Sensor User Manual
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.David
Content
... ... @@ -1,10 +1,12 @@
1 1  (% style="text-align:center" %)
2 -[[image:image-20220709085040-1.png||height="542" width="524"]]
2 +[[image:1657348034241-728.png||height="470" width="470"]]
3 3  
4 4  
5 5  
6 6  
7 7  
8 +
9 +
8 8  **Table of Contents:**
9 9  
10 10  {{toc/}}
... ... @@ -13,48 +13,59 @@
13 13  
14 14  
15 15  
16 -
17 17  = 1.  Introduction =
18 18  
19 -== 1.1 ​ What is NDDS75 Distance Detection Sensor ==
20 20  
21 +== 1.1 ​ What is N95S31B NB-IoT Sensor Node ==
22 +
21 21  (((
22 22  
23 23  
24 24  (((
25 -The Dragino NDDS75 is a (% style="color:blue" %)**NB-IoT Distance Detection Sensor**(%%) for Internet of Things solution. It is designed to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses ultrasonic sensing technology for distance measurement, and temperature compensation is performed internally to improve the reliability of data.
26 -\\The NDDS75 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc. It detects the distance between the measured object and the sensor, and uploads the value via wireless to IoT Server via NB-IoT Network.
27 -\\NarrowBand-Internet of Things (NB-IoT) is a standards-based low power wide area (LPWA) technology developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity and spectrum efficiency, especially in deep coverage.
28 -\\NDDS75 supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP and CoAP** (%%)for different application requirement.
29 -\\NDDS75 is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), It is designed for long term use up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method)
30 -\\To use NDDS75, user needs to check if there is NB-IoT coverage in local area and with the bands NDDS75 supports. If the local operate support it, user needs to get a NB-IoT SIM card from local operator and install NDDS75 to get NB-IoT network connection.
27 +The Dragino N95S31B is a (% style="color:blue" %)**NB-IoT Temperature and Humidity Sensor**(%%) for Internet of Things solution. It is used to measure the (% style="color:blue" %)**surrounding environment temperature and relative air humidity precisely**(%%), and then upload to IoT server via NB-IoT network*.
31 31  )))
32 32  
30 +(((
31 +The temperature & humidity sensor used in N95S31B 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.
32 +)))
33 +
34 +(((
35 +N95S31B supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP and CoAP**(%%) for different application requirement.
36 +)))
37 +
38 +(((
39 +N95S31B 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. Please check related Power Analyze report).
40 +)))
41 +
42 +(((
33 33  
34 34  )))
35 35  
36 -[[image:1657327959271-447.png]]
46 +(((
47 +~* make sure you have NB-IoT coverage locally.
48 +)))
37 37  
50 +
51 +)))
38 38  
53 +[[image:1657348284168-431.png]]
39 39  
55 +
56 +
40 40  == 1.2 ​ Features ==
41 41  
42 42  
43 43  * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
44 -* Ultra low power consumption
45 -* Distance Detection by Ultrasonic technology
46 -* Flat object range 280mm - 7500mm
47 -* Accuracy: ±(1cm+S*0.3%) (S: Distance)
48 -* Cable Length: 25cm
61 +* Monitor Temperature & Humidity via SHT31
49 49  * AT Commands to change parameters
50 50  * Uplink on periodically
51 51  * Downlink to change configure
52 52  * IP66 Waterproof Enclosure
66 +* Ultra-Low Power consumption
67 +* AT Commands to change parameters
53 53  * Micro SIM card slot for NB-IoT SIM
54 54  * 8500mAh Battery for long term use
55 55  
56 -
57 -
58 58  == 1.3  Specification ==
59 59  
60 60  
... ... @@ -80,15 +80,9 @@
80 80  * Max continuously current: 130mA
81 81  * Max boost current: 2A, 1 second
82 82  
83 -(% style="color:#037691" %)**Power Consumption**
84 -
85 -* STOP Mode: 10uA @ 3.3v
86 -* Max transmit power: 350mA@3.3v
87 -
88 -
89 -
90 90  == ​1.4  Applications ==
91 91  
98 +
92 92  * Smart Buildings & Home Automation
93 93  * Logistics and Supply Chain Management
94 94  * Smart Metering
... ... @@ -100,24 +100,65 @@
100 100  ​
101 101  
102 102  
103 -== 1.5  Pin Definitions ==
104 104  
111 +== 1.5  Pin Definitions & Switch ==
105 105  
106 -[[image:1657328609906-564.png]]
107 107  
114 +N95S31B use the mother board from NBSN95 which as below.
108 108  
109 109  
110 -= 2.  Use NDDS75 to communicate with IoT Server =
117 +[[image:image-20220709144723-1.png]]
111 111  
119 +
120 +
121 +=== 1.5.1 Jumper JP2 ===
122 +
123 +
124 +Power on Device when put this jumper.
125 +
126 +
127 +
128 +=== 1.5.2 BOOT MODE / SW1 ===
129 +
130 +
131 +(((
132 +1) 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.
133 +)))
134 +
135 +(((
136 +2) Flash: work mode, device starts to work and send out console output for further debug
137 +)))
138 +
139 +
140 +
141 +=== 1.5.3 Reset Button ===
142 +
143 +
144 +Press to reboot the device.
145 +
146 +
147 +
148 +=== 1.5.4 LED ===
149 +
150 +
151 +It will flash:
152 +
153 +1. When boot the device in flash mode
154 +1. Send an uplink packet
155 +
156 += 2.  Use N95S31B to communicate with IoT Server =
157 +
158 +
112 112  == 2.1  How it works ==
113 113  
161 +
114 114  (((
115 -The NDDS75 is equipped with a NB-IoT module, the pre-loaded firmware in NDDS75 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 NDDS75.
163 +The N95S31B is equipped with a NB-IoT module, the pre-loaded firmware in N95S31B 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 N95S31B.
116 116  )))
117 117  
118 118  
119 119  (((
120 -The diagram below shows the working flow in default firmware of NDDS75:
168 +The diagram below shows the working flow in default firmware of N95S31B:
121 121  )))
122 122  
123 123  (((
... ... @@ -124,7 +124,7 @@
124 124  
125 125  )))
126 126  
127 -[[image:1657328659945-416.png]]
175 +[[image:1657520100595-569.png]]
128 128  
129 129  (((
130 130  
... ... @@ -131,30 +131,69 @@
131 131  )))
132 132  
133 133  
134 -== 2.2 ​ Configure the NDDS75 ==
182 +== 2.2 ​ Configure the N95S31B ==
135 135  
136 136  
185 +=== 2.2.1  Power On N95S31B ===
186 +
187 +
188 +[[image:image-20220709150546-2.png]]
189 +
190 +
191 +
137 137  === 2.2.1 Test Requirement ===
138 138  
194 +
139 139  (((
140 -To use NDDS75 in your city, make sure meet below requirements:
196 +To use N95S31B in your city, make sure meet below requirements:
141 141  )))
142 142  
143 -* Your local operator has already distributed a NB-IoT Network there.
144 -* The local NB-IoT network used the band that NSE01 supports.
145 -* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
199 +* (((
200 +Your local operator has already distributed a NB-IoT Network there.
201 +)))
202 +* (((
203 +The local NB-IoT network used the band that N95S31B supports.
204 +)))
205 +* (((
206 +Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
207 +)))
146 146  
147 147  (((
148 -Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NDDS75 will use CoAP((% style="color:red" %)120.24.4.116:5683)(%%) or raw UDP((% style="color:red" %)120.24.4.116:5601)(%%) or MQTT((% style="color:red" %)120.24.4.116:1883)(%%)or TCP((% style="color:red" %)120.24.4.116:5600)(%%)protocol to send data to the test server
210 +Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.
149 149  )))
150 150  
213 +(((
214 +N95S31B supports different communication protocol such as :
215 +)))
151 151  
152 -[[image:1657328756309-230.png]]
217 +(((
218 +* (((
219 +CoAP  ((% style="color:red" %)120.24.4.116:5683(%%))
220 +)))
221 +* (((
222 +raw UDP  ((% style="color:red" %)120.24.4.116:5601(%%))
223 +)))
224 +* (((
225 +MQTT  ((% style="color:red" %)120.24.4.116:1883(%%))
226 +)))
227 +* (((
228 +TCP  ((% style="color:red" %)120.24.4.116:5600(%%))
229 +)))
153 153  
231 +(((
232 +We will show how to use with each protocol. The IP addresses above are our test server. User need to change to point their corresponding server.
233 +)))
154 154  
235 +
236 +)))
155 155  
156 -=== 2.2.2 Insert SIM card ===
238 +[[image:1657350625843-586.png]]
157 157  
240 +
241 +
242 +=== 2.2.3  Insert SIM card ===
243 +
244 +
158 158  (((
159 159  Insert the NB-IoT Card get from your provider.
160 160  )))
... ... @@ -164,20 +164,24 @@
164 164  )))
165 165  
166 166  
167 -[[image:1657328884227-504.png]]
254 +[[image:1657351240556-536.png]]
168 168  
169 169  
170 170  
171 -=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
258 +=== 2.2. Connect USB – TTL to N95S31B to configure it ===
172 172  
260 +
173 173  (((
174 174  (((
175 -User need to configure NDDS75 via serial port to set the (% style="color:blue" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. NDDS75 support AT Commands, user can use a USB to TTL adapter to connect to NDDS75 and use AT Commands to configure it, as below.
263 +User need to configure N95S31B via serial port to set the (% style="color:blue" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. N95S31B support AT Commands, user can use a USB to TTL adapter to connect to N95S31B and use AT Commands to configure it, as below.
264 +
265 +
176 176  )))
177 177  )))
178 178  
179 -[[image:image-20220709092052-2.png]]
269 +[[image:1657351312545-300.png]]
180 180  
271 +
181 181  **Connection:**
182 182  
183 183   (% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
... ... @@ -196,40 +196,56 @@
196 196  * Flow Control: (% style="color:green" %)**None**
197 197  
198 198  (((
199 -Make sure the switch is in FLASH position, then power on device by connecting the jumper on NDDS75. NDDS75 will output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.
290 +Make sure the switch is in FLASH position, then power on device by connecting the jumper on N95S31B. N95S31B will output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.
200 200  )))
201 201  
202 202  [[image:1657329814315-101.png]]
203 203  
295 +
204 204  (((
205 -(% style="color:red" %)Note: the valid AT Commands can be found at: (%%)[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/]]
297 +(% style="color:red" %)**Note: the valid AT Commands can be found at:  **(%%)**[[https:~~/~~/www.dropbox.com/sh/mlpd6l05bogvaf6/AABwAJLMttqG7i~~-~~-AyZcQkoua?dl=0>>https://www.dropbox.com/sh/mlpd6l05bogvaf6/AABwAJLMttqG7i--AyZcQkoua?dl=0]]**
206 206  )))
207 207  
208 208  
209 209  
210 -=== 2.2.4 Use CoAP protocol to uplink data ===
302 +=== 2.2. Use CoAP protocol to uplink data ===
211 211  
212 -(% style="color:red" %)Note: if you don't have CoAP server, you can refer this link to set up one: (%%)[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/>>http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]
213 213  
305 +(% style="color:red" %)**Note: if you don't have CoAP server, you can refer this link to set up one: **(%%)**[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/>>http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]**
214 214  
307 +
308 +(((
215 215  **Use below commands:**
310 +)))
216 216  
217 -* (% style="color:blue" %)**AT+PRO=1**  (%%) ~/~/ Set to use CoAP protocol to uplink
218 -* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/ to set CoAP server address and port
219 -* (% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/Set COAP resource path
312 +* (((
313 +(% style="color:blue" %)**AT+PRO=1**  (%%) ~/~/ Set to use CoAP protocol to uplink
314 +)))
315 +* (((
316 +(% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/ to set CoAP server address and port
317 +)))
318 +* (((
319 +(% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/Set COAP resource path
320 +)))
220 220  
322 +(((
323 +
324 +
221 221  For parameter description, please refer to AT command set
326 +)))
222 222  
223 -[[image:1657330452568-615.png]]
328 +[[image:1657352146020-183.png]]
224 224  
225 225  
331 +(((
226 226  After configure the server address and (% style="color:green" %)**reset the device**(%%) (via AT+ATZ ), NDDS75 will start to uplink sensor values to CoAP server.
333 +)))
227 227  
228 -[[image:1657330472797-498.png]]
335 +[[image:1657352185396-303.png]]
229 229  
230 230  
231 231  
232 -=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
339 +=== 2.2. Use UDP protocol to uplink data(Default protocol) ===
233 233  
234 234  
235 235  * (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/ Set to use UDP protocol to uplink
... ... @@ -236,109 +236,114 @@
236 236  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/ to set UDP server address and port
237 237  * (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/ If the server does not respond, this command is unnecessary
238 238  
239 -[[image:1657330501006-241.png]]
346 +[[image:1657352391268-297.png]]
240 240  
241 241  
242 -[[image:1657330533775-472.png]]
349 +[[image:1657352403317-397.png]]
243 243  
244 244  
245 245  
246 -=== 2.2.6 Use MQTT protocol to uplink data ===
353 +=== 2.2. Use MQTT protocol to uplink data ===
247 247  
248 248  
249 -* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
250 -* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/Set MQTT server address and port
251 -* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/Set up the CLIENT of MQTT
252 -* (% style="color:blue" %)**AT+UNAME=UNAME                               **(%%)~/~/Set the username of MQTT
253 -* (% style="color:blue" %)**AT+PWD=PWD                                        **(%%)~/~/Set the password of MQTT
254 -* (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB                 **(%%)~/~/Set the sending topic of MQTT
255 -* (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB          **(%%) ~/~/Set the subscription topic of MQTT
356 +N95S31B supports only plain MQTT now it doesn't support TLS and other related encryption.
256 256  
257 -[[image:1657249978444-674.png]]
358 +* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
359 +* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/Set MQTT server address and port
360 +* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/Set up the CLIENT of MQTT
361 +* (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/Set the username of MQTT
362 +* (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/Set the password of MQTT
363 +* (% style="color:blue" %)**AT+PUBTOPIC=f9527                               **(%%)~/~/Set the sending topic of MQTT
364 +* (% style="color:blue" %)**AT+SUBTOPIC=Ns9527          **(%%) ~/~/Set the subscription topic of MQTT
258 258  
366 +[[image:1657352634421-276.png]]
259 259  
260 -[[image:1657330723006-866.png]]
261 261  
369 +[[image:1657352645687-385.png]]
262 262  
371 +
263 263  (((
264 -MQTT protocol has a much higher power consumption compare vs UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.
373 +To save battery life, N95S31B will establish a subscription before each uplink and close the subscription 3 seconds after uplink successful. Any downlink commands from server will only arrive during the subscription period.
265 265  )))
266 266  
267 267  
377 +(((
378 +MQTT protocol has a much high-power consumption compare vs UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.
379 +)))
268 268  
269 -=== 2.2.7 Use TCP protocol to uplink data ===
270 270  
271 271  
383 +=== 2.2.8  Use TCP protocol to uplink data ===
384 +
385 +
386 +This feature is supported since firmware version v110
387 +
272 272  * (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/ Set to use TCP protocol to uplink
273 273  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/ to set TCP server address and port
274 274  
275 -[[image:image-20220709093918-1.png]]
391 +[[image:1657352898400-901.png]]
276 276  
277 277  
278 -[[image:image-20220709093918-2.png]]
394 +[[image:1657352914475-252.png]]
279 279  
280 280  
281 281  
282 -=== 2.2.8 Change Update Interval ===
398 +=== 2.2. Change Update Interval ===
283 283  
400 +
284 284  User can use below command to change the (% style="color:green" %)**uplink interval**.
285 285  
286 286  * (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/ Set Update Interval to 600s
287 287  
288 288  (((
289 -(% style="color:red" %)**NOTE:**
406 +
290 290  )))
291 291  
292 -(((
293 -(% style="color:red" %)1. By default, the device will send an uplink message every 1 hour.
294 -)))
409 +(% style="color:red" %)**NOTE:When the firmware version is v1.2 and later firmware:**
295 295  
411 +**By default, the device will send an uplink message every 2 hours. Each Uplink Include 8 set of records in this 2 hour (15 minute interval / record).**
296 296  
297 297  
298 298  == 2.3  Uplink Payload ==
299 299  
300 -In this mode, uplink payload includes in total 14 bytes
301 301  
417 +(((
418 +N95S31B has different working mode for the connections of different type of sensors. This section describes these modes. User can use the AT Command (% style="color:blue" %)**AT+MOD**(%%) to set NBSN95 to different working modes.
419 +)))
302 302  
303 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
304 -|=(% style="width: 80px;" %)(((
305 -**Size(bytes)**
306 -)))|=(% style="width: 80px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 110px;" %)**1**|=(% style="width: 110px;" %)**2**|=(% style="width: 70px;" %)**1**
307 -|(% style="width:97px" %)**Value**|(% style="width:83px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:41px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:46px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:123px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:120px" %)[[Distance (unit: mm)>>||anchor="H2.4.5A0Distance"]]|(% style="width:80px" %)[[Interrupt>>||anchor="H2.4.6A0DigitalInterrupt"]]
308 308  
309 309  (((
310 -If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS751 uplink data.
423 +For example:
311 311  )))
312 312  
426 +(((
427 + (% style="color:blue" %)**AT+CFGMOD=2 ** (%%)~/~/will set the N95S31B to work in MOD=2 distance mode which target to measure distance via Ultrasonic Sensor.
428 +)))
313 313  
314 -[[image:1657331036973-987.png]]
315 315  
316 316  (((
317 -The payload is ASCII string, representative same HEX:
432 +The uplink payloads are composed in  ASCII String. For example:
318 318  )))
319 319  
320 320  (((
321 -0x72403155615900640c6c19029200 where:
436 +0a cd 00 ed 0a cc 00 00 ef 02 d2 1d (total 24 ASCII Chars) . Representative the actually payload:
322 322  )))
323 323  
324 -* (((
325 -Device ID: 0x724031556159 = 724031556159
439 +(((
440 +0x 0a cd 00 ed 0a cc 00 00 ef 02 d2 1d Total 12 bytes
326 326  )))
327 -* (((
328 -Version: 0x0064=100=1.0.0
442 +
443 +
444 +(((
445 +(% style="color:red" %)**NOTE:**
329 329  )))
330 330  
331 -* (((
332 -BAT: 0x0c6c = 3180 mV = 3.180V
448 +(% style="color:red" %)
449 +1. (((
450 +**All modes share the same Payload Explanation from [[HERE>>||anchor="H2.3A0UplinkPayload"]].**
333 333  )))
334 -* (((
335 -Signal: 0x19 = 25
336 -)))
337 -* (((
338 -Distance: 0x0292= 658 mm
339 -)))
340 -* (((
341 -Interrupt: 0x00 = 0
452 +1. (((
453 +**By default, the device will send an uplink message every 1 hour.**
342 342  
343 343  
344 344  
... ... @@ -345,103 +345,153 @@
345 345  
346 346  )))
347 347  
348 -== 2.4  Payload Explanation and Sensor Interface ==
460 +=== 2.3.1  Payload Analyze ===
349 349  
350 350  
351 -=== 2.4.1  Device ID ===
463 +N95S31B uplink payload includes in total 21 bytes
352 352  
465 +
466 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:520px" %)
467 +|=(% style="width: 60px;" %)(((
468 +**Size(bytes)**
469 +)))|=(% style="width: 50px;" %)**6**|=(% style="width: 25px;" %)2|=(% style="width: 25px;" %)**2**|=(% style="width: 70px;" %)**1**|=(% style="width: 55px;" %)1|=(% style="width: 115px;" %)5|=(% style="width: 60px;" %)**2**|=(% style="width: 60px;" %)**2**
470 +|(% style="width:97px" %)**Value**|(% style="width:83px" %)[[Device ID>>||anchor="H2.3.2A0DeviceID"]]|(% style="width:41px" %)[[Ver>>||anchor="H2.3.3A0VersionInfo"]]|(% style="width:46px" %)[[BAT>>||anchor="H2.3.4A0BatteryInfo"]]|(% style="width:123px" %)[[Signal Strength>>||anchor="H2.3.5A0SignalStrength"]]|(% style="width:123px" %)MOD 0X01|(% style="width:99px" %)(((
353 353  (((
354 -By default, the Device ID equal to the last 6 bytes of IMEI.
472 +Reserve/ Same as NBSN95 CFGMOD=1
355 355  )))
356 356  
357 357  (((
358 -User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
476 +No function here.
359 359  )))
478 +)))|(% style="width:77px" %)(((
479 +(((
480 +[[Temperature >>||anchor="H2.3.6A0Temperature26Humidity"]]
481 +)))
360 360  
361 361  (((
362 -**Example:**
484 +By SHT31
363 363  )))
486 +)))|(% style="width:80px" %)(((
487 +(((
488 +[[Humidity>>||anchor="H2.3.6A0Temperature26Humidity"]]
489 +)))
364 364  
365 365  (((
366 -AT+DEUI=A84041F15612
492 +By SHT31
367 367  )))
494 +)))
368 368  
369 369  (((
370 -The Device ID is stored in a none-erase area, Upgrade the firmware or run **AT+FDR** won't erase Device ID.
497 +
498 +
499 +(((
500 +If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NB sensor uplink data.
371 371  )))
502 +)))
372 372  
373 373  
505 +[[image:1657354294009-643.png]]
374 374  
375 -=== 2.4.2  Version Info ===
376 376  
508 +The payload is ASCII string, representative same HEX: 0x724031607457006e0ccd1b0100dc000ccc00e10186 where:
509 +
510 +* Device ID: 0x724031607457 = 724031607457
511 +* Version: 0x006e=110=1.1.0
512 +
513 +* BAT: 0x0ccd = 3277 mV = 3.277V
514 +* Signal: 0x1b = 27
515 +* Model: 0x01 = 1
516 +* 0x00dc000ccc= reserve, ignore in N95S31B
517 +* Temperature by SHT31: 0x00e1 = 225 = 22.5 °C
518 +* Humidity by SHT31: 0x0186 = 390 = 39.0 %rh
519 +
377 377  (((
378 -Specify the software version: 0x64=100, means firmware version 1.00.
521 +
379 379  )))
380 380  
381 381  (((
382 -For example: 0x00 64 : this device is NDDS75 with firmware version 1.0.0.
525 +(% style="color:red" %)**NOTE:When the firmware version is v1.2 and later firmware:**
383 383  )))
384 384  
528 +In this mode, uplink payload includes 91 bytes in total by default.
385 385  
530 +Each time the device uploads a data package, 8 sets of recorded data will be attached. Up to 32 sets of recorded data can be uploaded.
386 386  
387 -=== 2.4.3  Battery Info ===
532 +|**Size(bytes)**|**8**|2|2|1|1|2|1|2|2|2|4|2|2|4
533 +|**Value**|Device ID|Ver|BAT|Signal Strength|MOD|TemDS18B20|Interrupt|ADC|SHTTEM|SHTHUM|Time stamp |SHTTEM|SHTHUM|Time stamp .....
388 388  
389 -(((
390 -Ex1: 0x0B45 = 2885mV
391 -)))
535 +If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSE01 uplink data.
392 392  
393 -(((
394 -Ex2: 0x0B49 = 2889mV
395 -)))
537 +[[image:image-20220908154949-1.png]]
396 396  
539 +The payload is ASCII string, representative same HEX:
397 397  
541 +0x(% style="color:red" %)f868411056758782(% style="color:blue" %)000c(% style="color:green" %)0d0f(% style="color:red" %)0c(% style="color:blue" %)01(% style="color:green" %)0000(% style="color:red" %)00**//0030//**(% style="color:blue" %)**//0114//**(% style="color:red" %)**//0231//**(% style="color:green" %)**//63199d3c//**0113023163199d12//**0113023163199c5e**//0112023763199baa//**0112023263199af6**//0111023b631999a7//**0112023b631998f3**//011202426319983f//**01110242631996eb**//(%%) where:
398 398  
399 -=== 2.4.4  Signal Strength ===
543 +* (% style="color:red" %) Device ID: f868411056758782 = f868411056758782
544 +* (% style="color:blue" %) Version: 0x000c=120=1.2
545 +* (% style="color:green" %) BAT: 0x0d0f = 3343 mV = 3.343V
546 +* (% style="color:red" %) Singal: 0x0c = 12
547 +* (% style="color:blue" %) Mod: 0x01 = 1
548 +* TemDS18B20: 0x0000= 0 = 0
549 +* (% style="color:green" %)Interrupt: 0x00= 0
550 +* (% style="color:green" %)adc: 0x0030= 48
551 +* SHTTEM: 0x0114= 276 = 27.6
552 +* SHTHUM:0x0231 =561=56.1%
553 +* (% style="color:red" %) Time stamp : 0x6315537b =1662342011  ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
554 +* (% style="color:red" %)SHTTEM,SHTHUM,Time stamp : 0113023163199d12
555 +* 8 sets of recorded data: SHTTEM(% style="color:red" %),SHTHUM,Time stamp : //**0113023163199c5e**//,.......
400 400  
401 -(((
402 -NB-IoT Network signal Strength.
403 -)))
557 +=== 2.3.2  Device ID ===
404 404  
405 -(((
406 -**Ex1: 0x1d = 29**
407 -)))
408 408  
409 409  (((
410 -(% style="color:blue" %)**0**(%%)  -113dBm or less
561 +By default, the Device ID equal to the last 6 bytes of IMEI.
411 411  )))
412 412  
413 413  (((
414 -(% style="color:blue" %)**1**(%%)  -111dBm
565 +User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
415 415  )))
416 416  
417 417  (((
418 -(% style="color:blue" %)**2...30**(%%) -109dBm... -53dBm
569 +**Example:**
419 419  )))
420 420  
421 421  (((
422 -(% style="color:blue" %)**31**  (%%) -51dBm or greater
573 +AT+DEUI=A84041F15612
423 423  )))
424 424  
425 425  (((
426 -(% style="color:blue" %)**99**   (%%) Not known or not detectable
577 +The Device ID is stored in a none-erase area, Upgrade the firmware or run **AT+FDR** won't erase Device ID.
578 +
579 +
427 427  )))
428 428  
582 +(% style="color:red" %)**NOTE:When the firmware version is v1.2 and later firmware:**
429 429  
430 430  
431 -=== 2.4.5  Distance ===
585 +By default, the Device ID equal to the last 15 bits of IMEI.
432 432  
433 -Get the distance. Flat object range 280mm - 7500mm.
587 +User can use **AT+DEUI** to set Device ID
434 434  
435 -For example, if the data you get from the register is **__0x0B 0x05__**, the distance between the sensor and the measured object is
589 +**Example:**
436 436  
591 +AT+DEUI=868411056754138
592 +
593 +
594 +=== 2.3.3  Version Info ===
595 +
596 +
437 437  (((
598 +These bytes include the hardware and software version.
599 +)))
600 +
438 438  (((
439 -(% style="color:blue" %)** 0B05(H) = 2821(D) = 2821mm.**
602 +Higher byte: Specify hardware version: always 0x00 for N95S31B
440 440  )))
441 -)))
442 442  
443 443  (((
444 -
606 +Lower byte: Specify the software version: 0x6E=110, means firmware version 110
445 445  )))
446 446  
447 447  (((
... ... @@ -448,65 +448,85 @@
448 448  
449 449  )))
450 450  
451 -=== 2.4.6  Digital Interrupt ===
452 -
453 453  (((
454 -Digital Interrupt refers to pin (% style="color:blue" %)**GPIO_EXTI**(%%), and there are different trigger methods. When there is a trigger, the NDDS75 will send a packet to the server.
614 +For example: 0x00 6E: this device is N95S31B with firmware version 110.
455 455  )))
456 456  
457 457  (((
458 -The command is:
618 +
459 459  )))
460 460  
621 +
622 +=== 2.3.4  Battery Info ===
623 +
624 +
461 461  (((
462 -(% style="color:blue" %)**AT+INTMOD=3 **(%%) ~/~/(more info about INMOD please refer [[**AT Command Manual**>>url:https://www.dragino.com/downloads/downloads/NB-IoT/NBSN95/DRAGINO_NBSN95-NB_AT%20Commands_v1.1.0.pdf]])**.**
626 +Ex1: 0x0B45 = 2885mV
463 463  )))
464 464  
465 -
466 466  (((
467 -The lower four bits of this data field shows if this packet is generated by interrupt or not. Click here for the hardware and software set up.
630 +Ex2: 0x0B49 = 2889mV
468 468  )))
469 469  
470 470  
634 +
635 +=== 2.3.5  Signal Strength ===
636 +
637 +
471 471  (((
472 -Example:
639 +NB-IoT Network signal Strength.
473 473  )))
474 474  
475 475  (((
476 -0x(00): Normal uplink packet.
643 +**Ex1: 0x1d = 29**
477 477  )))
478 478  
479 479  (((
480 -0x(01): Interrupt Uplink Packet.
647 +(% style="color:blue" %)**0**(%%)  -113dBm or less
481 481  )))
482 482  
483 -
484 -
485 -=== 2.4.7  ​+5V Output ===
486 -
487 487  (((
488 -NDDS75 will enable +5V output before all sampling and disable the +5v after all sampling. 
651 +(% style="color:blue" %)**1**(%%)  -111dBm
489 489  )))
490 490  
491 -
492 492  (((
493 -The 5V output time can be controlled by AT Command.
655 +(% style="color:blue" %)**2...30**(%%) -109dBm... -53dBm
494 494  )))
495 495  
496 496  (((
497 -(% style="color:blue" %)**AT+5VT=1000**
659 +(% style="color:blue" %)**31**  (%%) -51dBm or greater
498 498  )))
499 499  
500 500  (((
501 -Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
663 +(% style="color:blue" %)**99**   (%%) Not known or not detectable
502 502  )))
503 503  
504 504  
505 505  
506 -== 2.5  Downlink Payload ==
668 +=== 2.3.6  Temperature & Humidity ===
507 507  
508 -By default, NDDS75 prints the downlink payload to console port.
509 509  
671 +The device will be able to get the SHT31 temperature and humidity data now and upload to IoT Server.
672 +
673 +[[image:image-20220709161741-3.png]]
674 +
675 +
676 +Convert the read byte to decimal and divide it by ten.
677 +
678 +
679 +**Example:**
680 +
681 +Temperature:  Read:00ec (H) = 236(D)  Value:  236 /10=23.6℃
682 +
683 +Humidity:    Read:0295(H)=661(D)    Value:  661 / 10=66.1, So 66.1%
684 +
685 +
686 +
687 +== 2.4  Downlink Payload ==
688 +
689 +
690 +By default, N95S31B prints the downlink payload to console port.
691 +
510 510  [[image:image-20220709100028-1.png]]
511 511  
512 512  
... ... @@ -543,7 +543,7 @@
543 543  )))
544 544  
545 545  (((
546 -If payload = 0x04FF, it will reset the NDDS75
728 +If payload = 0x04FF, it will reset the N95S31B
547 547  )))
548 548  
549 549  
... ... @@ -554,45 +554,61 @@
554 554  )))
555 555  
556 556  
739 +== 2.5 Humidity and Temperature alarm function ==
557 557  
558 -== 2.6  ​LED Indicator ==
741 + AT Command:
559 559  
743 +AT+ SHHUM=min,max
560 560  
561 -The NDDS75 has an internal LED which is to show the status of different state.
745 +² When min=0, and max≠0, Alarm higher than max
562 562  
747 +² When min≠0, and max=0, Alarm lower than min
563 563  
564 -* When power on, NDDS75 will detect if sensor probe is connected, if probe detected, LED will blink four times. (no blinks in this step is no probe)
565 -* Then the LED will be on for 1 second means device is boot normally.
566 -* After NDDS75 join NB-IoT network. The LED will be ON for 3 seconds.
567 -* For each uplink probe, LED will be on for 500ms.
749 +² When min≠0 and max≠0, Alarm higher than max or lower than min
568 568  
569 -(((
570 -
571 -)))
751 +Example:
572 572  
753 +AT+ SHHUM=50,80 ~/~/ Alarm when humidity lower than 50.
573 573  
574 574  
575 -== 2.7  ​Firmware Change Log ==
756 +AT+ SHTEMP=min,max
576 576  
758 +² When min=0, and max≠0, Alarm higher than max
577 577  
578 -Download URL & Firmware Change log
760 +² When min≠0, and max=0, Alarm lower than min
579 579  
580 -(((
581 -[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/Firmware/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/Firmware/]]
582 -)))
762 +² When min≠0 and max≠0, Alarm higher than max or lower than min
583 583  
764 +Example:
584 584  
585 -Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
766 +AT+ SHTEMP=20,30 ~/~/ Alarm when temperature lower than 20.
586 586  
768 +== 2.6 Set the number of data to be uploaded and the recording time ==
587 587  
770 +➢ AT Command:
588 588  
772 +AT+TR=900  ~/~/The unit is seconds, and the default is to record data once every 900 seconds.( The minimum can be set to 180 seconds)
773 +
774 +AT+NOUD=8  ~/~/The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
775 +
776 +== 2.7 Read or Clear cached data ==
777 +
778 +➢ AT Command:
779 +
780 +AT+CDP ~/~/ Read cached data
781 +
782 +[[image:image-20220908163102-2.png]]
783 +
784 +AT+CDP=0 ~/~/ Clear cached data
785 +
589 589  == 2.8  ​Battery Analysis ==
590 590  
788 +
591 591  === 2.8.1  ​Battery Type ===
592 592  
593 593  
594 594  (((
595 -The NDDS75 battery is a combination of an 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is none-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
793 +The N95S31B battery is a combination of an 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is none-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
596 596  )))
597 597  
598 598  (((
... ... @@ -615,54 +615,35 @@
615 615  
616 616  === 2.8.2  Power consumption Analyze ===
617 617  
618 -(((
619 -Dragino battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
620 -)))
621 621  
622 -
623 623  (((
624 -Instruction to use as below:
818 +The file **DRAGINO_N95S31B-Power-Analyzer.pdf** from [[https:~~/~~/www.dropbox.com/sh/mlpd6l05bogvaf6/AABwAJLMttqG7i~~-~~-AyZcQkoua?dl=0>>https://www.dropbox.com/sh/mlpd6l05bogvaf6/AABwAJLMttqG7i--AyZcQkoua?dl=0]] describes a detail measurement to analyze the power consumption in different case. User can use it for design guideline for their project.
625 625  )))
626 626  
627 627  (((
628 -(% style="color:blue" %)**Step 1:  **(%%)Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
822 +
629 629  )))
630 630  
631 631  
632 -(((
633 -(% style="color:blue" %)**Step 2: **(%%) Open it and choose
634 -)))
826 +=== 2.8.3  ​Battery Note ===
635 635  
636 -* (((
637 -Product Model
638 -)))
639 -* (((
640 -Uplink Interval
641 -)))
642 -* (((
643 -Working Mode
644 -)))
645 645  
646 646  (((
647 -And the Life expectation in difference case will be shown on the right.
830 +The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to uplink data, then the battery life may be decreased.
648 648  )))
649 649  
650 -[[image:image-20220709110451-3.png]]
651 651  
652 652  
835 +=== 2.8.4  Replace the battery ===
653 653  
654 -=== 2.8.3  ​Battery Note ===
655 655  
656 656  (((
657 -The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
839 +You can change the battery in the N95S31B.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won't be voltage drop between battery and main board.
658 658  )))
659 659  
660 660  
661 -
662 -=== 2.8.4  Replace the battery ===
663 -
664 664  (((
665 -The default battery pack of NDDS75 includes a ER26500 plus super capacitor. If user can't find this pack locally, they can find ER26500 or equivalence without the SPC1520 capacitor, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes).
844 +The default battery pack of N95S31B includes a ER26500 plus super capacitor. If user can't find this pack locally, they can find ER26500 or equivalence without the SPC1520 capacitor, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes).
666 666  )))
667 667  
668 668  
... ... @@ -669,6 +669,7 @@
669 669  
670 670  = 3. ​ Access NB-IoT Module =
671 671  
851 +
672 672  (((
673 673  Users can directly access the AT command set of the NB-IoT module.
674 674  )))
... ... @@ -675,6 +675,8 @@
675 675  
676 676  (((
677 677  The AT Command set can refer the BC35-G NB-IoT Module AT Command: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/]] 
858 +
859 +
678 678  )))
679 679  
680 680  [[image:1657333200519-600.png]]
... ... @@ -683,11 +683,13 @@
683 683  
684 684  = 4.  Using the AT Commands =
685 685  
868 +
686 686  == 4.1  Access AT Commands ==
687 687  
688 -See this link for detail: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/>>url:http://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN50/]]
689 689  
872 +See NBSN95 AT Command in this link for detail:  [[https:~~/~~/www.dropbox.com/sh/jao1xt9kw5r3yq4/AAAMpJkZzExF2JLbRWxGoQ9Na?dl=0>>https://www.dropbox.com/sh/jao1xt9kw5r3yq4/AAAMpJkZzExF2JLbRWxGoQ9Na?dl=0]]
690 690  
874 +
691 691  AT+<CMD>?  : Help on <CMD>
692 692  
693 693  AT+<CMD>         : Run <CMD>
... ... @@ -727,7 +727,24 @@
727 727  
728 728  AT+SERVADDR  : Server Address
729 729  
914 +AT+TR      : Get or Set record time
730 730  
916 +AT+APN     : Get or set the APN
917 +
918 +AT+FBAND   : Get or Set whether to automatically modify the frequency band
919 +
920 +AT+DNSCFG  : Get or Set DNS Server
921 +
922 +AT+GETSENSORVALUE   : Returns the current sensor measurement
923 +
924 +AT+NOUD      : Get or Set the number of data to be uploaded
925 +
926 +AT+CDP     : Read or Clear cached data
927 +
928 +AT+SHTEMP: Get or Set alarm of temp
929 +
930 +AT+SHHUM: Get or Set alarm of moisture
931 +
731 731  (% style="color:#037691" %)**COAP Management**      
732 732  
733 733  AT+URI            : Resource parameters
... ... @@ -761,6 +761,7 @@
761 761  
762 762  = ​5.  FAQ =
763 763  
965 +
764 764  == 5.1 ​ How to Upgrade Firmware ==
765 765  
766 766  
... ... @@ -773,13 +773,18 @@
773 773  )))
774 774  
775 775  (((
776 -(% style="color:red" %)Notice, NDDS75 and LDDS75 share the same mother board. They use the same connection and method to update.
978 +
979 +
980 +(((
981 +(% style="color:red" %)**Notice, N95S31B and LSN50v2 share the same mother board. They use the same connection and method to update.**
777 777  )))
983 +)))
778 778  
779 779  
780 780  
781 781  = 6.  Trouble Shooting =
782 782  
989 +
783 783  == 6.1  ​Connection problem when uploading firmware ==
784 784  
785 785  
... ... @@ -795,6 +795,7 @@
795 795  
796 796  == 6.2  AT Command input doesn't work ==
797 797  
1005 +
798 798  (((
799 799  In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
800 800  
... ... @@ -805,7 +805,7 @@
805 805  = 7. ​ Order Info =
806 806  
807 807  
808 -Part Number**:** (% style="color:#4f81bd" %)**NSDDS75**
1016 +Part Number**:** (% style="color:#4f81bd" %)**N95S31B-YY**
809 809  
810 810  
811 811  (% class="wikigeneratedid" %)
... ... @@ -820,7 +820,7 @@
820 820  
821 821  (% style="color:#037691" %)**Package Includes**:
822 822  
823 -* NSE01 NB-IoT Distance Detect Sensor Node x 1
1031 +* N95S31B NB-IoT Temperature and Humidity Sensor
824 824  * External antenna x 1
825 825  )))
826 826  
... ... @@ -829,11 +829,10 @@
829 829  
830 830  (% style="color:#037691" %)**Dimension and weight**:
831 831  
832 -
833 833  * Device Size: 13.0 x 5 x 4.5 cm
834 834  * Device Weight: 150g
835 -* Package Size / pcs : 15 x 12x 5.5 cm
836 -* Weight / pcs : 220g
1042 +* Package Size / pcs : 14.0 x 8x 5 cm
1043 +* Weight / pcs : 180g
837 837  )))
838 838  
839 839  (((
... ... @@ -845,5 +845,8 @@
845 845  
846 846  = 9.  Support =
847 847  
1055 +
848 848  * 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.
849 849  * 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.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]]
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