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From version < 97.12 >
edited by Xiaoling
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Summary

Details

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Title
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1 -NDDS75 NB-IoT Distance Detect Sensor User Manual
1 +N95S31B NB-IoT Temperature & Humidity Sensor User Manual
Content
... ... @@ -1,60 +1,60 @@
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 -**Table of Contents:**
9 9  
10 -{{toc/}}
11 11  
10 +**Table of Contents:**
12 12  
13 13  
14 14  
15 15  
16 16  
16 +
17 17  = 1.  Introduction =
18 18  
19 -== 1.1 ​ What is NDDS75 Distance Detection Sensor ==
19 +== 1.1 ​ What is N95S31B NB-IoT Sensor Node ==
20 20  
21 21  (((
22 22  
23 23  
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.
31 -)))
24 +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*.
32 32  
26 +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.
27 +
28 +N95S31B supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP and CoAP**(%%) for different application requirement.
29 +
30 +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).
31 +
32 +
33 +~* make sure you have NB-IoT coverage locally.
34 +
33 33  
34 34  )))
35 35  
36 -[[image:1657327959271-447.png]]
38 +[[image:1657348284168-431.png]]
37 37  
38 38  
39 39  
40 40  == 1.2 ​ Features ==
41 41  
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
45 +* 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
50 +* Ultra-Low Power consumption
51 +* 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 56  
57 57  
57 +
58 58  == 1.3  Specification ==
59 59  
60 60  
... ... @@ -74,6 +74,7 @@
74 74  
75 75  (% style="color:#037691" %)**Battery:**
76 76  
77 +
77 77  * Li/SOCI2 un-chargeable battery
78 78  * Capacity: 8500mAh
79 79  * Self Discharge: <1% / Year @ 25°C
... ... @@ -80,13 +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 84  
85 -* STOP Mode: 10uA @ 3.3v
86 -* Max transmit power: 350mA@3.3v
87 87  
88 88  
89 -
90 90  == ​1.4  Applications ==
91 91  
92 92  * Smart Buildings & Home Automation
... ... @@ -102,22 +102,51 @@
102 102  
103 103  == 1.5  Pin Definitions ==
104 104  
102 +N95S31B use the mother board from NBSN95 which as below.
105 105  
106 -[[image:1657328609906-564.png]]
104 +[[image:image-20220709144723-1.png]]
107 107  
108 108  
107 +=== 1.5.1 Jumper JP2 ===
109 109  
110 -= 2.  Use NDDS75 to communicate with IoT Server =
109 +Power on Device when put this jumper.
111 111  
111 +
112 +
113 +=== 1.5.2 BOOT MODE / SW1 ===
114 +
115 +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.
116 +
117 +2) Flash: work mode, device starts to work and send out console output for further debug
118 +
119 +
120 +
121 +=== 1.5.3 Reset Button ===
122 +
123 +Press to reboot the device.
124 +
125 +
126 +
127 +=== 1.5.4 LED ===
128 +
129 +It will flash:
130 +
131 +1. When boot the device in flash mode
132 +1. Send an uplink packet
133 +
134 +
135 += 2.  Use N95S31B to communicate with IoT Server =
136 +
112 112  == 2.1  How it works ==
113 113  
139 +
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.
141 +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:
146 +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]]
153 +[[image:1657350248151-650.png]]
128 128  
129 129  (((
130 130  
... ... @@ -131,30 +131,45 @@
131 131  )))
132 132  
133 133  
134 -== 2.2 ​ Configure the NDDS75 ==
160 +== 2.2 ​ Configure the N95S31B ==
135 135  
136 136  
163 +=== 2.2.1  Power On N95S31B ===
164 +
165 +
166 +[[image:image-20220709150546-2.png]]
167 +
168 +
137 137  === 2.2.1 Test Requirement ===
138 138  
139 -(((
140 -To use NDDS75 in your city, make sure meet below requirements:
141 -)))
142 142  
172 +To use N95S31B in your city, make sure meet below requirements:
173 +
143 143  * Your local operator has already distributed a NB-IoT Network there.
144 -* The local NB-IoT network used the band that NSE01 supports.
175 +* The local NB-IoT network used the band that N95S31B supports.
145 145  * Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
146 146  
178 +Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.
179 +
180 +N95S31B supports different communication protocol such as :
181 +
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
149 -)))
183 +* CoAP  ((% style="color:red" %)120.24.4.116:5683(%%))
184 +* raw UDP  ((% style="color:red" %)120.24.4.116:5601(%%))
185 +* MQTT  ((% style="color:red" %)120.24.4.116:1883(%%))
186 +* TCP  ((% style="color:red" %)120.24.4.116:5600(%%))
150 150  
188 +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.
151 151  
152 -[[image:1657328756309-230.png]]
190 +
191 +)))
153 153  
193 +[[image:1657350625843-586.png]]
154 154  
155 155  
156 -=== 2.2.2 Insert SIM card ===
157 157  
197 +=== 2.2.3  Insert SIM card ===
198 +
158 158  (((
159 159  Insert the NB-IoT Card get from your provider.
160 160  )))
... ... @@ -164,19 +164,19 @@
164 164  )))
165 165  
166 166  
167 -[[image:1657328884227-504.png]]
208 +[[image:1657351240556-536.png]]
168 168  
169 169  
170 170  
171 -=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
212 +=== 2.2.4  Connect USB – TTL to N95S31B to configure it ===
172 172  
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.
216 +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.
176 176  )))
177 177  )))
178 178  
179 -[[image:image-20220709092052-2.png]]
220 +[[image:1657351312545-300.png]]
180 180  
181 181  **Connection:**
182 182  
... ... @@ -196,18 +196,18 @@
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.
240 +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  
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/]]
246 +(% style="color:red" %)Note: the valid AT Commands can be found at:  (%%)[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/N95S31B/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/N95S31B/]]
206 206  )))
207 207  
208 208  
209 209  
210 -=== 2.2.4 Use CoAP protocol to uplink data ===
251 +=== 2.2.5  Use CoAP protocol to uplink data ===
211 211  
212 212  (% 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  
... ... @@ -227,10 +227,12 @@
227 227  )))
228 228  
229 229  (((
271 +
272 +
230 230  For parameter description, please refer to AT command set
231 231  )))
232 232  
233 -[[image:1657330452568-615.png]]
276 +[[image:1657352146020-183.png]]
234 234  
235 235  
236 236  (((
... ... @@ -237,11 +237,11 @@
237 237  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.
238 238  )))
239 239  
240 -[[image:1657330472797-498.png]]
283 +[[image:1657352185396-303.png]]
241 241  
242 242  
243 243  
244 -=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
287 +=== 2.2.6  Use UDP protocol to uplink data(Default protocol) ===
245 245  
246 246  
247 247  * (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/ Set to use UDP protocol to uplink
... ... @@ -248,50 +248,56 @@
248 248  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/ to set UDP server address and port
249 249  * (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/ If the server does not respond, this command is unnecessary
250 250  
251 -[[image:1657330501006-241.png]]
294 +[[image:1657352391268-297.png]]
252 252  
253 253  
254 -[[image:1657330533775-472.png]]
297 +[[image:1657352403317-397.png]]
255 255  
256 256  
257 257  
258 -=== 2.2.6 Use MQTT protocol to uplink data ===
301 +=== 2.2.7  Use MQTT protocol to uplink data ===
259 259  
303 +N95S31B supports only plain MQTT now it doesn't support TLS and other related encryption.
260 260  
261 261  * (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
262 262  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/Set MQTT server address and port
263 263  * (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/Set up the CLIENT of MQTT
264 -* (% style="color:blue" %)**AT+UNAME=UNAME  **(%%)~/~/Set the username of MQTT
265 -* (% style="color:blue" %)**AT+PWD=PWD  **(%%)~/~/Set the password of MQTT
266 -* (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB                 **(%%)~/~/Set the sending topic of MQTT
267 -* (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB          **(%%) ~/~/Set the subscription topic of MQTT
308 +* (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/Set the username of MQTT
309 +* (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/Set the password of MQTT
310 +* (% style="color:blue" %)**AT+PUBTOPIC=f9527                               **(%%)~/~/Set the sending topic of MQTT
311 +* (% style="color:blue" %)**AT+SUBTOPIC=Ns9527          **(%%) ~/~/Set the subscription topic of MQTT
268 268  
269 -[[image:1657249978444-674.png]]
313 +[[image:1657352634421-276.png]]
270 270  
271 271  
272 -[[image:1657330723006-866.png]]
316 +[[image:1657352645687-385.png]]
273 273  
318 +(((
319 +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.
320 +)))
274 274  
322 +
275 275  (((
276 -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.
324 +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.
277 277  )))
278 278  
279 279  
280 280  
281 -=== 2.2.7 Use TCP protocol to uplink data ===
329 +=== 2.2.8  Use TCP protocol to uplink data ===
282 282  
331 +This feature is supported since firmware version v110
283 283  
284 284  * (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/ Set to use TCP protocol to uplink
285 285  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/ to set TCP server address and port
286 286  
287 -[[image:image-20220709093918-1.png]]
336 +[[image:1657352898400-901.png]]
288 288  
289 289  
290 -[[image:image-20220709093918-2.png]]
339 +[[image:1657352914475-252.png]]
291 291  
292 292  
293 293  
294 -=== 2.2.8 Change Update Interval ===
343 +=== 2.2.9  Change Update Interval ===
295 295  
296 296  User can use below command to change the (% style="color:green" %)**uplink interval**.
297 297  
... ... @@ -298,69 +298,92 @@
298 298  * (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/ Set Update Interval to 600s
299 299  
300 300  (((
301 -(% style="color:red" %)**NOTE:**
350 +
302 302  )))
303 303  
304 -(((
305 -(% style="color:red" %)1. By default, the device will send an uplink message every 1 hour.
306 -)))
307 307  
308 308  
309 -
310 310  == 2.3  Uplink Payload ==
311 311  
312 -In this mode, uplink payload includes in total 14 bytes
313 313  
358 +NBSN95 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.
314 314  
315 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
360 +
361 +For example:
362 +
363 + (% style="color:blue" %)**AT+CFGMOD=2 ** (%%)~/~/will set the NBSN95 to work in MOD=2 distance mode which target to measure distance via Ultrasonic Sensor.
364 +
365 +
366 +The uplink payloads are composed in  ASCII String. For example:
367 +
368 +0a cd 00 ed 0a cc 00 00 ef 02 d2 1d (total 24 ASCII Chars) . Representative the actually payload:
369 +
370 +0x 0a cd 00 ed 0a cc 00 00 ef 02 d2 1d Total 12 bytes
371 +
372 +
373 +(% style="color:red" %)**NOTE:**
374 +
375 +(% style="color:red" %)
376 +1. All modes share the same Payload Explanation from [[HERE>>path:#Payload_Explain]].
377 +1. By default, the device will send an uplink message every 1 hour.
378 +
379 +
380 +
381 +=== 2.3.1  Payload Analyze ===
382 +
383 +N95S31B uplink payload includes in total 21 bytes
384 +
385 +
386 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %)
316 316  |=(% style="width: 60px;" %)(((
317 317  **Size(bytes)**
318 -)))|=(% style="width: 60px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 80px;" %)**2**|=(% style="width: 60px;" %)**1**
319 -|(% 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"]]
389 +)))|=(% style="width: 60px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 80px;" %) |=(% style="width: 99px;" %) |=(% style="width: 77px;" %)**2**|=(% style="width: 60px;" %)**1**
390 +|(% 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:123px" %)MOD 0X01|(% style="width:99px" %)(((
391 +Reserve/ Same as NBSN95 CFGMOD=1
320 320  
321 -(((
322 -If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS751 uplink data.
323 -)))
393 +No function here.
394 +)))|(% style="width:77px" %)(((
395 +[[Temperature >>||anchor="H2.4.5A0Distance"]]
324 324  
397 +By SHT31
398 +)))|(% style="width:80px" %)(((
399 +[[Humidity>>||anchor="H2.4.6A0DigitalInterrupt"]]
325 325  
326 -[[image:1657331036973-987.png]]
327 -
328 -(((
329 -The payload is ASCII string, representative same HEX:
401 +By SHT31
330 330  )))
331 331  
332 332  (((
333 -0x72403155615900640c6c19029200 where:
405 +(((
406 +If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NB sensor uplink data.
334 334  )))
335 -
336 -* (((
337 -Device ID: 0x724031556159 = 724031556159
338 338  )))
339 -* (((
340 -Version: 0x0064=100=1.0.0
341 -)))
342 342  
343 -* (((
344 -BAT: 0x0c6c = 3180 mV = 3.180V
345 -)))
346 -* (((
347 -Signal: 0x19 = 25
348 -)))
349 -* (((
350 -Distance: 0x0292= 658 mm
351 -)))
352 -* (((
353 -Interrupt: 0x00 = 0
354 354  
411 +[[image:1657354294009-643.png]]
355 355  
356 356  
414 +The payload is ASCII string, representative same HEX: 0x724031607457006e0ccd1b0100dc000ccc00e10186 where:
415 +
416 +* Device ID: 0x724031607457 = 724031607457
417 +* Version: 0x006e=110=1.1.0
418 +
419 +* BAT: 0x0ccd = 3277 mV = 3.277V
420 +* Signal: 0x1b = 27
421 +* Model: 0x01 = 1
422 +* 0x00dc000ccc= reserve, ignore in N95S31B
423 +* Temperature by SHT31: 0x00e1 = 225 = 22.5 °C
424 +* Humidity by SHT31: 0x0186 = 390 = 39.0 %rh
425 +
426 +(((
357 357  
358 358  )))
359 359  
360 -== 2.4  Payload Explanation and Sensor Interface ==
430 +(((
431 +
432 +)))
361 361  
362 362  
363 -=== 2.4.1  Device ID ===
435 +=== 2.3.2  Device ID ===
364 364  
365 365  (((
366 366  By default, the Device ID equal to the last 6 bytes of IMEI.
... ... @@ -384,20 +384,25 @@
384 384  
385 385  
386 386  
387 -=== 2.4.2  Version Info ===
459 +=== 2.3.3  Version Info ===
388 388  
389 -(((
390 -Specify the software version: 0x64=100, means firmware version 1.00.
391 -)))
392 392  
462 +These bytes include the hardware and software version.
463 +
464 +Higher byte: Specify hardware version: always 0x00 for N95S31B
465 +
466 +Lower byte: Specify the software version: 0x6E=110, means firmware version 110
467 +
468 +
469 +For example: 0x00 6E: this device is N95S31B with firmware version 110.
470 +
393 393  (((
394 -For example: 0x00 64 : this device is NDDS75 with firmware version 1.0.0.
472 +
395 395  )))
396 396  
397 397  
476 +=== 2.3.4  Battery Info ===
398 398  
399 -=== 2.4.3  Battery Info ===
400 -
401 401  (((
402 402  Ex1: 0x0B45 = 2885mV
403 403  )))
... ... @@ -408,7 +408,7 @@
408 408  
409 409  
410 410  
411 -=== 2.4.4  Signal Strength ===
488 +=== 2.3.5  Signal Strength ===
412 412  
413 413  (((
414 414  NB-IoT Network signal Strength.
... ... @@ -440,81 +440,24 @@
440 440  
441 441  
442 442  
443 -=== 2.4.5  Distance ===
520 +=== 2.3.6  Temperature & Humidity ===
444 444  
445 -Get the distance. Flat object range 280mm - 7500mm.
522 +The device will be able to get the SHT31 temperature and humidity data now and upload to IoT Server.
446 446  
447 -For example, if the data you get from the register is **__0x0B 0x05__**, the distance between the sensor and the measured object is
524 +[[image:image-20220709161741-3.png]]
448 448  
449 -(((
450 -(((
451 -(% style="color:blue" %)** 0B05(H) = 2821(D) = 2821mm.**
452 -)))
453 -)))
454 454  
455 -(((
456 -
457 -)))
527 +Convert the read byte to decimal and divide it by ten.
458 458  
459 -(((
460 -
461 -)))
462 462  
463 -=== 2.4.6  Digital Interrupt ===
530 +**Example:**
464 464  
465 -(((
466 -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.
467 -)))
532 +Temperature:  Read:00ec (H) = 236(D)  Value:  236 /10=23.6℃
468 468  
469 -(((
470 -The command is:
471 -)))
534 +Humidity:    Read:0295(H)=661(D)    Value:  661 / 10=66.1, So 66.1%
472 472  
473 -(((
474 -(% 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]])**.**
475 -)))
476 476  
477 477  
478 -(((
479 -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.
480 -)))
481 -
482 -
483 -(((
484 -Example:
485 -)))
486 -
487 -(((
488 -0x(00): Normal uplink packet.
489 -)))
490 -
491 -(((
492 -0x(01): Interrupt Uplink Packet.
493 -)))
494 -
495 -
496 -
497 -=== 2.4.7  ​+5V Output ===
498 -
499 -(((
500 -NDDS75 will enable +5V output before all sampling and disable the +5v after all sampling. 
501 -)))
502 -
503 -
504 -(((
505 -The 5V output time can be controlled by AT Command.
506 -)))
507 -
508 -(((
509 -(% style="color:blue" %)**AT+5VT=1000**
510 -)))
511 -
512 -(((
513 -Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
514 -)))
515 -
516 -
517 -
518 518  == 2.5  Downlink Payload ==
519 519  
520 520  By default, NDDS75 prints the downlink payload to console port.
... ... @@ -587,7 +587,9 @@
587 587  == 2.7  ​Firmware Change Log ==
588 588  
589 589  
610 +(((
590 590  Download URL & Firmware Change log
612 +)))
591 591  
592 592  (((
593 593  [[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/]]
... ... @@ -594,7 +594,9 @@
594 594  )))
595 595  
596 596  
619 +(((
597 597  Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
621 +)))
598 598  
599 599  
600 600  
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