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 : ... ... @@ -293,15 +293,16 @@ 293 293 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601 ** (%%) ~/~/ to set UDP server address and port 294 294 * (% style="color:blue" %)**AT+CFM=1 ** (%%) ~/~/ If the server does not respond, this command is unnecessary 295 295 296 -[[image:16573 30501006-241.png]]292 +[[image:1657352391268-297.png]] 297 297 298 298 299 -[[image:16573 30533775-472.png]]295 +[[image:1657352403317-397.png]] 300 300 301 301 302 302 303 -=== 2.2. 6299 +=== 2.2.7 Use MQTT protocol to uplink data === 304 304 301 +N95S31B supports only plain MQTT now it doesn't support TLS and other related encryption. 305 305 306 306 * (% style="color:blue" %)**AT+PRO=3 ** (%%) ~/~/Set to use MQTT protocol to uplink 307 307 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883 ** (%%) ~/~/Set MQTT server address and port ... ... @@ -308,35 +308,40 @@ 308 308 * (% style="color:blue" %)**AT+CLIENT=CLIENT ** (%%)~/~/Set up the CLIENT of MQTT 309 309 * (% style="color:blue" %)**AT+UNAME=UNAME **(%%)~/~/Set the username of MQTT 310 310 * (% style="color:blue" %)**AT+PWD=PWD **(%%)~/~/Set the password of MQTT 311 -* (% style="color:blue" %)**AT+PUBTOPIC= NDDS75_PUB**(%%)~/~/Set the sending topic of MQTT312 -* (% 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 313 313 314 -[[image:165724 9978444-674.png]]311 +[[image:1657352634421-276.png]] 315 315 316 316 317 -[[image:16573 30723006-866.png]]314 +[[image:1657352645687-385.png]] 318 318 316 +((( 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 +))) 319 319 320 + 320 320 ((( 321 -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. 322 322 ))) 323 323 324 324 325 325 326 -=== 2.2. 7327 +=== 2.2.8 Use TCP protocol to uplink data === 327 327 329 +This feature is supported since firmware version v110 328 328 329 329 * (% style="color:blue" %)**AT+PRO=4 ** (%%) ~/~/ Set to use TCP protocol to uplink 330 330 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600 **(%%) ~/~/ to set TCP server address and port 331 331 332 -[[image: image-20220709093918-1.png]]334 +[[image:1657352898400-901.png]] 333 333 334 334 335 -[[image: image-20220709093918-2.png]]337 +[[image:1657352914475-252.png]] 336 336 337 337 338 338 339 -=== 2.2. 8341 +=== 2.2.9 Change Update Interval === 340 340 341 341 User can use below command to change the (% style="color:green" %)**uplink interval**. 342 342 ... ... @@ -343,32 +343,69 @@ 343 343 * (% style="color:blue" %)**AT+TDC=600 ** (%%)~/~/ Set Update Interval to 600s 344 344 345 345 ((( 346 - (%style="color:red" %)**NOTE:**348 + 347 347 ))) 348 348 349 -((( 350 -(% style="color:red" %)1. By default, the device will send an uplink message every 1 hour. 351 -))) 352 352 353 353 354 - 355 355 == 2.3 Uplink Payload == 356 356 357 -In this mode, uplink payload includes in total 14 bytes 358 358 356 +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. 359 359 358 + 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 + 360 360 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %) 361 361 |=(% style="width: 60px;" %)((( 362 362 **Size(bytes)** 363 -)))|=(% style="width: 60px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 100px;" %)**2**|=(% style="width: 60px;" %)**1** 364 -|(% 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=1 365 365 392 +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 + 366 366 ((( 367 -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. 368 368 ))) 407 +))) 369 369 370 370 371 -[[image:16573 31036973-987.png]]410 +[[image:1657354294009-643.png]] 372 372 373 373 ((( 374 374 The payload is ASCII string, representative same HEX:
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