Changes for page N95S31B -- NB-IoT Temperature & Humidity Sensor User Manual
Last modified by Mengting Qiu on 2024/04/02 16:44
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... ... @@ -54,7 +54,6 @@ 54 54 * 8500mAh Battery for long term use 55 55 56 56 57 - 58 58 == 1.3 Specification == 59 59 60 60 ... ... @@ -82,7 +82,6 @@ 82 82 * Max boost current: 2A, 1 second 83 83 84 84 85 - 86 86 == 1.4 Applications == 87 87 88 88 * Smart Buildings & Home Automation ... ... @@ -132,7 +132,6 @@ 132 132 133 133 134 134 135 - 136 136 = 2. Use N95S31B to communicate with IoT Server = 137 137 138 138 == 2.1 How it works == ... ... @@ -176,7 +176,6 @@ 176 176 * The local NB-IoT network used the band that N95S31B supports. 177 177 * Your operator is able to distribute the data received in their NB-IoT network to your IoT server. 178 178 179 - 180 180 Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8. 181 181 182 182 N95S31B supports different communication protocol such as : ... ... @@ -211,15 +211,15 @@ 211 211 212 212 213 213 214 -=== 2.2. 3DDS75 to configure it ===210 +=== 2.2.4 Connect USB – TTL to N95S31B to configure it === 215 215 216 216 ((( 217 217 ((( 218 -User need to configure DDS75 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 toDDS75 and use AT Commands to configure it, as below.214 +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. 219 219 ))) 220 220 ))) 221 221 222 -[[image: image-20220709092052-2.png]]218 +[[image:1657351312545-300.png]] 223 223 224 224 **Connection:** 225 225 ... ... @@ -239,18 +239,18 @@ 239 239 * Flow Control: (% style="color:green" %)**None** 240 240 241 241 ((( 242 -Make sure the switch is in FLASH position, then power on device by connecting the jumper on N DDS75.DDS75 will output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.238 +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. 243 243 ))) 244 244 245 245 [[image:1657329814315-101.png]] 246 246 247 247 ((( 248 -(% style="color:red" %)Note: the valid AT Commands can be found at: (%%)[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/N DDS75/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/]]244 +(% 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/]] 249 249 ))) 250 250 251 251 252 252 253 -=== 2.2. 4249 +=== 2.2.5 Use CoAP protocol to uplink data === 254 254 255 255 (% 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/]] 256 256 ... ... @@ -270,10 +270,12 @@ 270 270 ))) 271 271 272 272 ((( 269 + 270 + 273 273 For parameter description, please refer to AT command set 274 274 ))) 275 275 276 -[[image:16573 30452568-615.png]]274 +[[image:1657352146020-183.png]] 277 277 278 278 279 279 ((( ... ... @@ -280,11 +280,11 @@ 280 280 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. 281 281 ))) 282 282 283 -[[image:16573 30472797-498.png]]281 +[[image:1657352185396-303.png]] 284 284 285 285 286 286 287 -=== 2.2. 5285 +=== 2.2.6 Use UDP protocol to uplink data(Default protocol) === 288 288 289 289 290 290 * (% style="color:blue" %)**AT+PRO=2 ** (%%) ~/~/ Set to use UDP protocol to uplink ... ... @@ -291,15 +291,16 @@ 291 291 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601 ** (%%) ~/~/ to set UDP server address and port 292 292 * (% style="color:blue" %)**AT+CFM=1 ** (%%) ~/~/ If the server does not respond, this command is unnecessary 293 293 294 -[[image:16573 30501006-241.png]]292 +[[image:1657352391268-297.png]] 295 295 296 296 297 -[[image:16573 30533775-472.png]]295 +[[image:1657352403317-397.png]] 298 298 299 299 300 300 301 -=== 2.2. 6299 +=== 2.2.7 Use MQTT protocol to uplink data === 302 302 301 +N95S31B supports only plain MQTT now it doesn't support TLS and other related encryption. 303 303 304 304 * (% style="color:blue" %)**AT+PRO=3 ** (%%) ~/~/Set to use MQTT protocol to uplink 305 305 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883 ** (%%) ~/~/Set MQTT server address and port ... ... @@ -306,35 +306,40 @@ 306 306 * (% style="color:blue" %)**AT+CLIENT=CLIENT ** (%%)~/~/Set up the CLIENT of MQTT 307 307 * (% style="color:blue" %)**AT+UNAME=UNAME **(%%)~/~/Set the username of MQTT 308 308 * (% style="color:blue" %)**AT+PWD=PWD **(%%)~/~/Set the password of MQTT 309 -* (% style="color:blue" %)**AT+PUBTOPIC= NDDS75_PUB**(%%)~/~/Set the sending topic of MQTT310 -* (% style="color:blue" %)**AT+SUBTOPIC=N DDS75_SUB**(%%) ~/~/Set the subscription topic of MQTT308 +* (% style="color:blue" %)**AT+PUBTOPIC=f9527 **(%%)~/~/Set the sending topic of MQTT 309 +* (% style="color:blue" %)**AT+SUBTOPIC=Ns9527 **(%%) ~/~/Set the subscription topic of MQTT 311 311 312 -[[image:165724 9978444-674.png]]311 +[[image:1657352634421-276.png]] 313 313 314 314 315 -[[image:16573 30723006-866.png]]314 +[[image:1657352645687-385.png]] 316 316 316 +((( 317 +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. 318 +))) 317 317 320 + 318 318 ((( 319 -MQTT protocol has a much high erpower consumption compare vs UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.322 +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. 320 320 ))) 321 321 322 322 323 323 324 -=== 2.2. 7327 +=== 2.2.8 Use TCP protocol to uplink data === 325 325 329 +This feature is supported since firmware version v110 326 326 327 327 * (% style="color:blue" %)**AT+PRO=4 ** (%%) ~/~/ Set to use TCP protocol to uplink 328 328 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600 **(%%) ~/~/ to set TCP server address and port 329 329 330 -[[image: image-20220709093918-1.png]]334 +[[image:1657352898400-901.png]] 331 331 332 332 333 -[[image: image-20220709093918-2.png]]337 +[[image:1657352914475-252.png]] 334 334 335 335 336 336 337 -=== 2.2. 8341 +=== 2.2.9 Change Update Interval === 338 338 339 339 User can use below command to change the (% style="color:green" %)**uplink interval**. 340 340 ... ... @@ -341,32 +341,69 @@ 341 341 * (% style="color:blue" %)**AT+TDC=600 ** (%%)~/~/ Set Update Interval to 600s 342 342 343 343 ((( 344 - (%style="color:red" %)**NOTE:**348 + 345 345 ))) 346 346 347 -((( 348 -(% style="color:red" %)1. By default, the device will send an uplink message every 1 hour. 349 -))) 350 350 351 351 352 - 353 353 == 2.3 Uplink Payload == 354 354 355 -In this mode, uplink payload includes in total 14 bytes 356 356 356 +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. 357 357 358 + 359 +For example: 360 + 361 + (% 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. 362 + 363 + 364 +The uplink payloads are composed in ASCII String. For example: 365 + 366 +0a cd 00 ed 0a cc 00 00 ef 02 d2 1d (total 24 ASCII Chars) . Representative the actually payload: 367 + 368 +0x 0a cd 00 ed 0a cc 00 00 ef 02 d2 1d Total 12 bytes 369 + 370 + 371 +(% style="color:red" %)**NOTE:** 372 + 373 +(% style="color:red" %) 374 +1. All modes share the same Payload Explanation from [[HERE>>path:#Payload_Explain]]. 375 +1. By default, the device will send an uplink message every 1 hour. 376 + 377 + 378 + 379 + 380 +=== 2.3.1 Payload Analyze === 381 + 382 +N95S31B uplink payload includes in total 21 bytes 383 + 384 + 358 358 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %) 359 359 |=(% style="width: 60px;" %)((( 360 360 **Size(bytes)** 361 -)))|=(% style="width: 60px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 100px;" %)**2**|=(% style="width: 60px;" %)**1** 362 -|(% 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"]] 388 +)))|=(% 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** 389 +|(% 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" %)((( 390 +Reserve/ Same as NBSN95 CFGMOD=1 363 363 392 +No function here. 393 +)))|(% style="width:77px" %)((( 394 +[[Temperature >>||anchor="H2.4.5A0Distance"]] 395 + 396 +By SHT31 397 +)))|(% style="width:80px" %)((( 398 +[[Humidity>>||anchor="H2.4.6A0DigitalInterrupt"]] 399 + 400 +By SHT31 401 +))) 402 + 364 364 ((( 365 -If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS751 uplink data. 404 +((( 405 +If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NB sensor uplink data. 366 366 ))) 407 +))) 367 367 368 368 369 -[[image:16573 31036973-987.png]]410 +[[image:1657354294009-643.png]] 370 370 371 371 ((( 372 372 The payload is ASCII string, representative same HEX:
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