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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... ... @@ -1,1 +1,1 @@ 1 -N 95S31BNB-IoTTemperature& HumiditySensor User Manual1 +NDDS75 NB-IoT Distance Detect Sensor User Manual - Content
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... ... @@ -1,59 +1,76 @@ 1 1 (% style="text-align:center" %) 2 -[[image: 1657348034241-728.png||height="470" width="470"]]2 +[[image:image-20220709085040-1.png||height="542" width="524"]] 3 3 4 4 5 5 6 6 7 7 8 - 9 - 10 10 **Table of Contents:** 11 11 10 +{{toc/}} 12 12 13 13 14 14 15 15 16 16 16 + 17 17 = 1. Introduction = 18 18 19 -== 1.1 What is N 95S31BNB-IoTSensorNode==19 +== 1.1 What is NDDS75 Distance Detection Sensor == 20 20 21 21 ((( 22 22 23 23 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*. 24 +((( 25 +((( 26 +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. 27 +))) 25 25 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. 29 +((( 30 +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. 31 +))) 27 27 28 -N95S31B supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP and CoAP**(%%) for different application requirement. 33 +((( 34 +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. 35 +))) 29 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). 37 +((( 38 +NDDS75 supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP and CoAP** (%%)for different application requirement. 39 +))) 31 31 41 +((( 42 +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) 43 +))) 32 32 33 -~* make sure you have NB-IoT coverage locally. 45 +((( 46 +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. 47 +))) 48 +))) 34 34 35 35 36 36 ))) 37 37 38 -[[image:16573 48284168-431.png]]53 +[[image:1657327959271-447.png]] 39 39 40 40 41 41 42 42 == 1.2 Features == 43 43 44 - 45 45 * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD 46 -* Monitor Temperature & Humidity via SHT31 60 +* Ultra low power consumption 61 +* Distance Detection by Ultrasonic technology 62 +* Flat object range 280mm - 7500mm 63 +* Accuracy: ±(1cm+S*0.3%) (S: Distance) 64 +* Cable Length: 25cm 47 47 * AT Commands to change parameters 48 48 * Uplink on periodically 49 49 * Downlink to change configure 50 50 * IP66 Waterproof Enclosure 51 -* Ultra-Low Power consumption 52 -* 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 73 + 57 57 == 1.3 Specification == 58 58 59 59 ... ... @@ -73,7 +73,6 @@ 73 73 74 74 (% style="color:#037691" %)**Battery:** 75 75 76 - 77 77 * Li/SOCI2 un-chargeable battery 78 78 * Capacity: 8500mAh 79 79 * Self Discharge: <1% / Year @ 25°C ... ... @@ -80,7 +80,13 @@ 80 80 * Max continuously current: 130mA 81 81 * Max boost current: 2A, 1 second 82 82 99 +(% style="color:#037691" %)**Power Consumption** 83 83 101 +* STOP Mode: 10uA @ 3.3v 102 +* Max transmit power: 350mA@3.3v 103 + 104 + 105 + 84 84 == 1.4 Applications == 85 85 86 86 * Smart Buildings & Home Automation ... ... @@ -96,52 +96,22 @@ 96 96 97 97 == 1.5 Pin Definitions == 98 98 99 -N95S31B use the mother board from NBSN95 which as below. 100 100 101 -[[image: image-20220709144723-1.png]]122 +[[image:1657328609906-564.png]] 102 102 103 103 104 -=== 1.5.1 Jumper JP2 === 105 105 106 - PoweronDevice when putthisjumper.126 += 2. Use NDDS75 to communicate with IoT Server = 107 107 108 - 109 - 110 -=== 1.5.2 BOOT MODE / SW1 === 111 - 112 -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. 113 - 114 -2) Flash: work mode, device starts to work and send out console output for further debug 115 - 116 - 117 - 118 -=== 1.5.3 Reset Button === 119 - 120 -Press to reboot the device. 121 - 122 - 123 - 124 -=== 1.5.4 LED === 125 - 126 -It will flash: 127 - 128 -1. When boot the device in flash mode 129 -1. Send an uplink packet 130 - 131 - 132 - 133 -= 2. Use N95S31B to communicate with IoT Server = 134 - 135 135 == 2.1 How it works == 136 136 137 - 138 138 ((( 139 -The N 95S31Bis equipped with a NB-IoT module, the pre-loaded firmware in N95S31Bwill 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.131 +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. 140 140 ))) 141 141 142 142 143 143 ((( 144 -The diagram below shows the working flow in default firmware of N 95S31B:136 +The diagram below shows the working flow in default firmware of NDDS75: 145 145 ))) 146 146 147 147 ((( ... ... @@ -148,7 +148,7 @@ 148 148 149 149 ))) 150 150 151 -[[image:16573 50248151-650.png]]143 +[[image:1657328659945-416.png]] 152 152 153 153 ((( 154 154 ... ... @@ -155,45 +155,30 @@ 155 155 ))) 156 156 157 157 158 -== 2.2 Configure the N 95S31B==150 +== 2.2 Configure the NDDS75 == 159 159 160 160 161 -=== 2.2.1 Power On N95S31B === 162 - 163 - 164 -[[image:image-20220709150546-2.png]] 165 - 166 - 167 167 === 2.2.1 Test Requirement === 168 168 155 +((( 156 +To use NDDS75 in your city, make sure meet below requirements: 157 +))) 169 169 170 -To use N95S31B in your city, make sure meet below requirements: 171 - 172 172 * Your local operator has already distributed a NB-IoT Network there. 173 -* The local NB-IoT network used the band that N 95S31Bsupports.160 +* The local NB-IoT network used the band that NSE01 supports. 174 174 * Your operator is able to distribute the data received in their NB-IoT network to your IoT server. 175 175 176 -Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8. 177 - 178 -N95S31B supports different communication protocol such as : 179 - 180 180 ((( 181 -* CoAP ((% style="color:red" %)120.24.4.116:5683(%%)) 182 -* raw UDP ((% style="color:red" %)120.24.4.116:5601(%%)) 183 -* MQTT ((% style="color:red" %)120.24.4.116:1883(%%)) 184 -* TCP ((% style="color:red" %)120.24.4.116:5600(%%)) 185 - 186 -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. 187 - 188 - 164 +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 189 189 ))) 190 190 191 -[[image:1657350625843-586.png]] 192 192 168 +[[image:1657328756309-230.png]] 193 193 194 194 195 -=== 2.2.3 Insert SIM card === 196 196 172 +=== 2.2.2 Insert SIM card === 173 + 197 197 ((( 198 198 Insert the NB-IoT Card get from your provider. 199 199 ))) ... ... @@ -203,19 +203,19 @@ 203 203 ))) 204 204 205 205 206 -[[image:16573 51240556-536.png]]183 +[[image:1657328884227-504.png]] 207 207 208 208 209 209 210 -=== 2.2. 4Connect USB – TTL to N95S31Bto configure it ===187 +=== 2.2.3 Connect USB – TTL to NDDS75 to configure it === 211 211 212 212 ((( 213 213 ((( 214 -User need to configure 95S31Bvia serial port to set the (% style="color:blue" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. N95S31Bsupport AT Commands, user can use a USB to TTL adapter to connect to95S31Band use AT Commands to configure it, as below.191 +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. 215 215 ))) 216 216 ))) 217 217 218 -[[image: 1657351312545-300.png]]195 +[[image:image-20220709092052-2.png]] 219 219 220 220 **Connection:** 221 221 ... ... @@ -235,18 +235,18 @@ 235 235 * Flow Control: (% style="color:green" %)**None** 236 236 237 237 ((( 238 -Make sure the switch is in FLASH position, then power on device by connecting the jumper on N 95S31B.95S31Bwill output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.215 +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. 239 239 ))) 240 240 241 241 [[image:1657329814315-101.png]] 242 242 243 243 ((( 244 -(% style="color:red" %)Note: the valid AT Commands can be found at: 95S31B/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/N95S31B/]]221 +(% 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/]] 245 245 ))) 246 246 247 247 248 248 249 -=== 2.2. 5Use CoAP protocol to uplink data ===226 +=== 2.2.4 Use CoAP protocol to uplink data === 250 250 251 251 (% 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/]] 252 252 ... ... @@ -266,12 +266,10 @@ 266 266 ))) 267 267 268 268 ((( 269 - 270 - 271 271 For parameter description, please refer to AT command set 272 272 ))) 273 273 274 -[[image:1657352 146020-183.png]]249 +[[image:1657330452568-615.png]] 275 275 276 276 277 277 ((( ... ... @@ -278,11 +278,11 @@ 278 278 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. 279 279 ))) 280 280 281 -[[image:16573 52185396-303.png]]256 +[[image:1657330472797-498.png]] 282 282 283 283 284 284 285 -=== 2.2. 6Use UDP protocol to uplink data(Default protocol) ===260 +=== 2.2.5 Use UDP protocol to uplink data(Default protocol) === 286 286 287 287 288 288 * (% style="color:blue" %)**AT+PRO=2 ** (%%) ~/~/ Set to use UDP protocol to uplink ... ... @@ -289,16 +289,15 @@ 289 289 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601 ** (%%) ~/~/ to set UDP server address and port 290 290 * (% style="color:blue" %)**AT+CFM=1 ** (%%) ~/~/ If the server does not respond, this command is unnecessary 291 291 292 -[[image:16573 52391268-297.png]]267 +[[image:1657330501006-241.png]] 293 293 294 294 295 -[[image:16573 52403317-397.png]]270 +[[image:1657330533775-472.png]] 296 296 297 297 298 298 299 -=== 2.2. 7Use MQTT protocol to uplink data ===274 +=== 2.2.6 Use MQTT protocol to uplink data === 300 300 301 -N95S31B supports only plain MQTT now it doesn't support TLS and other related encryption. 302 302 303 303 * (% style="color:blue" %)**AT+PRO=3 ** (%%) ~/~/Set to use MQTT protocol to uplink 304 304 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883 ** (%%) ~/~/Set MQTT server address and port ... ... @@ -305,40 +305,35 @@ 305 305 * (% style="color:blue" %)**AT+CLIENT=CLIENT ** (%%)~/~/Set up the CLIENT of MQTT 306 306 * (% style="color:blue" %)**AT+UNAME=UNAME **(%%)~/~/Set the username of MQTT 307 307 * (% style="color:blue" %)**AT+PWD=PWD **(%%)~/~/Set the password of MQTT 308 -* (% style="color:blue" %)**AT+PUBTOPIC= f9527309 -* (% style="color:blue" %)**AT+SUBTOPIC=N s9527 **(%%)282 +* (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB **(%%)~/~/Set the sending topic of MQTT 283 +* (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB **(%%) ~/~/Set the subscription topic of MQTT 310 310 311 -[[image:1657 352634421-276.png]]285 +[[image:1657249978444-674.png]] 312 312 313 313 314 -[[image:16573 52645687-385.png]]288 +[[image:1657330723006-866.png]] 315 315 316 -((( 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 - 321 321 ((( 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.292 +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. 323 323 ))) 324 324 325 325 326 326 327 -=== 2.2. 8Use TCP protocol to uplink data ===297 +=== 2.2.7 Use TCP protocol to uplink data === 328 328 329 -This feature is supported since firmware version v110 330 330 331 331 * (% style="color:blue" %)**AT+PRO=4 ** (%%) ~/~/ Set to use TCP protocol to uplink 332 332 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600 **(%%) ~/~/ to set TCP server address and port 333 333 334 -[[image: 1657352898400-901.png]]303 +[[image:image-20220709093918-1.png]] 335 335 336 336 337 -[[image: 1657352914475-252.png]]306 +[[image:image-20220709093918-2.png]] 338 338 339 339 340 340 341 -=== 2.2. 9Change Update Interval ===310 +=== 2.2.8 Change Update Interval === 342 342 343 343 User can use below command to change the (% style="color:green" %)**uplink interval**. 344 344 ... ... @@ -345,93 +345,69 @@ 345 345 * (% style="color:blue" %)**AT+TDC=600 ** (%%)~/~/ Set Update Interval to 600s 346 346 347 347 ((( 348 - 317 +(% style="color:red" %)**NOTE:** 349 349 ))) 350 350 320 +((( 321 +(% style="color:red" %)1. By default, the device will send an uplink message every 1 hour. 322 +))) 351 351 352 352 325 + 353 353 == 2.3 Uplink Payload == 354 354 328 +In this mode, uplink payload includes in total 14 bytes 355 355 356 -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 - 385 385 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %) 386 386 |=(% style="width: 60px;" %)((( 387 387 **Size(bytes)** 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=1 334 +)))|=(% style="width: 60px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 100px;" %)**2**|=(% style="width: 60px;" %)**1** 335 +|(% 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"]] 391 391 392 - No function here.393 - )))|(%style="width:77px"%)(((394 - [[Temperature >>||anchor="H2.4.5A0Distance"]]337 +((( 338 +If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS751 uplink data. 339 +))) 395 395 396 -By SHT31 397 -)))|(% style="width:80px" %)((( 398 -[[Humidity>>||anchor="H2.4.6A0DigitalInterrupt"]] 399 399 400 -By SHT31 342 +[[image:1657331036973-987.png]] 343 + 344 +((( 345 +The payload is ASCII string, representative same HEX: 401 401 ))) 402 402 403 403 ((( 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. 349 +0x72403155615900640c6c19029200 where: 406 406 ))) 351 + 352 +* ((( 353 +Device ID: 0x724031556159 = 724031556159 407 407 ))) 355 +* ((( 356 +Version: 0x0064=100=1.0.0 357 +))) 408 408 359 +* ((( 360 +BAT: 0x0c6c = 3180 mV = 3.180V 361 +))) 362 +* ((( 363 +Signal: 0x19 = 25 364 +))) 365 +* ((( 366 +Distance: 0x0292= 658 mm 367 +))) 368 +* ((( 369 +Interrupt: 0x00 = 0 409 409 410 -[[image:1657354294009-643.png]] 411 411 412 412 413 -The payload is ASCII string, representative same HEX: 0x724031607457006e0ccd1b0100dc000ccc00e10186 where: 414 - 415 -* Device ID: 0x724031607457 = 724031607457 416 -* Version: 0x006e=110=1.1.0 417 - 418 -* BAT: 0x0ccd = 3277 mV = 3.277V 419 -* Signal: 0x1b = 27 420 -* Model: 0x01 = 1 421 -* 0x00dc000ccc= reserve, ignore in N95S31B 422 -* Temperature by SHT31: 0x00e1 = 225 = 22.5 °C 423 -* Humidity by SHT31: 0x0186 = 390 = 39.0 %rh 424 - 425 -((( 426 426 427 427 ))) 428 428 429 -((( 430 - 431 -))) 376 +== 2.4 Payload Explanation and Sensor Interface == 432 432 433 433 434 -=== 2. 3.2379 +=== 2.4.1 Device ID === 435 435 436 436 ((( 437 437 By default, the Device ID equal to the last 6 bytes of IMEI. ... ... @@ -455,25 +455,20 @@ 455 455 456 456 457 457 458 -=== 2. 3.3Version Info ===403 +=== 2.4.2 Version Info === 459 459 405 +((( 406 +Specify the software version: 0x64=100, means firmware version 1.00. 407 +))) 460 460 461 -These bytes include the hardware and software version. 462 - 463 -Higher byte: Specify hardware version: always 0x00 for N95S31B 464 - 465 -Lower byte: Specify the software version: 0x6E=110, means firmware version 110 466 - 467 - 468 -For example: 0x00 6E: this device is N95S31B with firmware version 110. 469 - 470 470 ((( 471 - 410 +For example: 0x00 64 : this device is NDDS75 with firmware version 1.0.0. 472 472 ))) 473 473 474 474 475 -=== 2.3.4 Battery Info === 476 476 415 +=== 2.4.3 Battery Info === 416 + 477 477 ((( 478 478 Ex1: 0x0B45 = 2885mV 479 479 ))) ... ... @@ -484,7 +484,7 @@ 484 484 485 485 486 486 487 -=== 2. 3.5Signal Strength ===427 +=== 2.4.4 Signal Strength === 488 488 489 489 ((( 490 490 NB-IoT Network signal Strength. ... ... @@ -516,24 +516,83 @@ 516 516 517 517 518 518 519 -=== 2. 3.6Temperature& Humidity===459 +=== 2.4.5 Distance === 520 520 521 - The devicewill beabletogetthe SHT31 temperatureand humiditydatanow and upload to IoT Server.461 +Get the distance. Flat object range 280mm - 7500mm. 522 522 523 -[[image:image-20220709161741-3.png]] 463 +((( 464 +For example, if the data you get from the register is **__0x0B 0x05__**, the distance between the sensor and the measured object is 465 +))) 524 524 467 +((( 468 +((( 469 +(% style="color:blue" %)** 0B05(H) = 2821(D) = 2821mm.** 470 +))) 471 +))) 525 525 526 -Convert the read byte to decimal and divide it by ten. 473 +((( 474 + 475 +))) 527 527 477 +((( 478 + 479 +))) 528 528 529 - **Example:**481 +=== 2.4.6 Digital Interrupt === 530 530 531 -Temperature: Read:00ec (H) = 236(D) Value: 236 /10=23.6℃ 483 +((( 484 +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. 485 +))) 532 532 533 -Humidity: Read:0295(H)=661(D) Value: 661 / 10=66.1, So 66.1% 487 +((( 488 +The command is: 489 +))) 534 534 491 +((( 492 +(% 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]])**.** 493 +))) 535 535 536 536 496 +((( 497 +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. 498 +))) 499 + 500 + 501 +((( 502 +Example: 503 +))) 504 + 505 +((( 506 +0x(00): Normal uplink packet. 507 +))) 508 + 509 +((( 510 +0x(01): Interrupt Uplink Packet. 511 +))) 512 + 513 + 514 + 515 +=== 2.4.7 +5V Output === 516 + 517 +((( 518 +NDDS75 will enable +5V output before all sampling and disable the +5v after all sampling. 519 +))) 520 + 521 + 522 +((( 523 +The 5V output time can be controlled by AT Command. 524 +))) 525 + 526 +((( 527 +(% style="color:blue" %)**AT+5VT=1000** 528 +))) 529 + 530 +((( 531 +Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors. 532 +))) 533 + 534 + 535 + 537 537 == 2.5 Downlink Payload == 538 538 539 539 By default, NDDS75 prints the downlink payload to console port.
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