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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... ... @@ -1,71 +1,55 @@ 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 N DDS75Distance DetectionSensor ==19 +== 1.1 What is N95S31B NB-IoT Sensor Node == 20 20 21 21 ((( 22 22 23 23 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 -))) 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*. 28 28 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 -))) 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. 32 32 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 -))) 28 +N95S31B supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP and CoAP**(%%) for different application requirement. 36 36 37 -((( 38 -NDDS75 supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP and CoAP** (%%)for different application requirement. 39 -))) 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). 40 40 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 -))) 44 44 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 -))) 33 +~* make sure you have NB-IoT coverage locally. 49 49 50 50 51 51 ))) 52 52 53 -[[image:165732 7959271-447.png]]38 +[[image:1657348284168-431.png]] 54 54 55 55 56 56 57 57 == 1.2 Features == 58 58 44 + 59 59 * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD 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 46 +* Monitor Temperature & Humidity via SHT31 65 65 * AT Commands to change parameters 66 66 * Uplink on periodically 67 67 * Downlink to change configure 68 68 * IP66 Waterproof Enclosure 51 +* Ultra-Low Power consumption 52 +* AT Commands to change parameters 69 69 * Micro SIM card slot for NB-IoT SIM 70 70 * 8500mAh Battery for long term use 71 71 ... ... @@ -90,6 +90,7 @@ 90 90 91 91 (% style="color:#037691" %)**Battery:** 92 92 77 + 93 93 * Li/SOCI2 un-chargeable battery 94 94 * Capacity: 8500mAh 95 95 * Self Discharge: <1% / Year @ 25°C ... ... @@ -96,13 +96,8 @@ 96 96 * Max continuously current: 130mA 97 97 * Max boost current: 2A, 1 second 98 98 99 -(% style="color:#037691" %)**Power Consumption** 100 100 101 -* STOP Mode: 10uA @ 3.3v 102 -* Max transmit power: 350mA@3.3v 103 103 104 - 105 - 106 106 == 1.4 Applications == 107 107 108 108 * Smart Buildings & Home Automation ... ... @@ -118,22 +118,53 @@ 118 118 119 119 == 1.5 Pin Definitions == 120 120 101 +N95S31B use the mother board from NBSN95 which as below. 121 121 122 -[[image: 1657328609906-564.png]]103 +[[image:image-20220709144723-1.png]] 123 123 124 124 106 +=== 1.5.1 Jumper JP2 === 125 125 126 - = 2. UseNDDS75 tocommunicate withIoTServer =108 +Power on Device when put this jumper. 127 127 110 + 111 + 112 +=== 1.5.2 BOOT MODE / SW1 === 113 + 114 +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. 115 + 116 +2) Flash: work mode, device starts to work and send out console output for further debug 117 + 118 + 119 + 120 +=== 1.5.3 Reset Button === 121 + 122 +Press to reboot the device. 123 + 124 + 125 + 126 +=== 1.5.4 LED === 127 + 128 +It will flash: 129 + 130 +1. When boot the device in flash mode 131 +1. Send an uplink packet 132 + 133 + 134 + 135 + 136 += 2. Use N95S31B to communicate with IoT Server = 137 + 128 128 == 2.1 How it works == 129 129 140 + 130 130 ((( 131 -The N DDS75 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 NDDS75.142 +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. 132 132 ))) 133 133 134 134 135 135 ((( 136 -The diagram below shows the working flow in default firmware of N DDS75:147 +The diagram below shows the working flow in default firmware of N95S31B: 137 137 ))) 138 138 139 139 ((( ... ... @@ -140,7 +140,7 @@ 140 140 141 141 ))) 142 142 143 -[[image:1657328 659945-416.png]]154 +[[image:1657350248151-650.png]] 144 144 145 145 ((( 146 146 ... ... @@ -147,30 +147,46 @@ 147 147 ))) 148 148 149 149 150 -== 2.2 Configure the N DDS75 ==161 +== 2.2 Configure the N95S31B == 151 151 152 152 164 +=== 2.2.1 Power On N95S31B === 165 + 166 + 167 +[[image:image-20220709150546-2.png]] 168 + 169 + 153 153 === 2.2.1 Test Requirement === 154 154 155 -((( 156 -To use NDDS75 in your city, make sure meet below requirements: 157 -))) 158 158 173 +To use N95S31B in your city, make sure meet below requirements: 174 + 159 159 * Your local operator has already distributed a NB-IoT Network there. 160 -* The local NB-IoT network used the band that NS E01 supports.176 +* The local NB-IoT network used the band that N95S31B supports. 161 161 * Your operator is able to distribute the data received in their NB-IoT network to your IoT server. 162 162 179 + 180 +Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8. 181 + 182 +N95S31B supports different communication protocol such as : 183 + 163 163 ((( 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 165 -))) 185 +* CoAP ((% style="color:red" %)120.24.4.116:5683(%%)) 186 +* raw UDP ((% style="color:red" %)120.24.4.116:5601(%%)) 187 +* MQTT ((% style="color:red" %)120.24.4.116:1883(%%)) 188 +* TCP ((% style="color:red" %)120.24.4.116:5600(%%)) 166 166 190 +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. 167 167 168 -[[image:1657328756309-230.png]] 192 + 193 +))) 169 169 195 +[[image:1657350625843-586.png]] 170 170 171 171 172 -=== 2.2.2 Insert SIM card === 173 173 199 +=== 2.2.3 Insert SIM card === 200 + 174 174 ((( 175 175 Insert the NB-IoT Card get from your provider. 176 176 ))) ... ... @@ -180,19 +180,19 @@ 180 180 ))) 181 181 182 182 183 -[[image:165732 8884227-504.png]]210 +[[image:1657351240556-536.png]] 184 184 185 185 186 186 187 -=== 2.2. 3DDS75 to configure it ===214 +=== 2.2.4 Connect USB – TTL to N95S31B to configure it === 188 188 189 189 ((( 190 190 ((( 191 -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.218 +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. 192 192 ))) 193 193 ))) 194 194 195 -[[image: image-20220709092052-2.png]]222 +[[image:1657351312545-300.png]] 196 196 197 197 **Connection:** 198 198 ... ... @@ -212,18 +212,18 @@ 212 212 * Flow Control: (% style="color:green" %)**None** 213 213 214 214 ((( 215 -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.242 +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. 216 216 ))) 217 217 218 218 [[image:1657329814315-101.png]] 219 219 220 220 ((( 221 -(% 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/]]248 +(% 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/]] 222 222 ))) 223 223 224 224 225 225 226 -=== 2.2. 4253 +=== 2.2.5 Use CoAP protocol to uplink data === 227 227 228 228 (% 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/]] 229 229 ... ... @@ -243,10 +243,12 @@ 243 243 ))) 244 244 245 245 ((( 273 + 274 + 246 246 For parameter description, please refer to AT command set 247 247 ))) 248 248 249 -[[image:16573 30452568-615.png]]278 +[[image:1657352146020-183.png]] 250 250 251 251 252 252 ((( ... ... @@ -253,11 +253,11 @@ 253 253 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. 254 254 ))) 255 255 256 -[[image:16573 30472797-498.png]]285 +[[image:1657352185396-303.png]] 257 257 258 258 259 259 260 -=== 2.2. 5289 +=== 2.2.6 Use UDP protocol to uplink data(Default protocol) === 261 261 262 262 263 263 * (% style="color:blue" %)**AT+PRO=2 ** (%%) ~/~/ Set to use UDP protocol to uplink ... ... @@ -264,15 +264,16 @@ 264 264 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601 ** (%%) ~/~/ to set UDP server address and port 265 265 * (% style="color:blue" %)**AT+CFM=1 ** (%%) ~/~/ If the server does not respond, this command is unnecessary 266 266 267 -[[image:16573 30501006-241.png]]296 +[[image:1657352391268-297.png]] 268 268 269 269 270 -[[image:16573 30533775-472.png]]299 +[[image:1657352403317-397.png]] 271 271 272 272 273 273 274 -=== 2.2. 6303 +=== 2.2.7 Use MQTT protocol to uplink data === 275 275 305 +N95S31B supports only plain MQTT now it doesn’t support TLS and other related encryption. 276 276 277 277 * (% style="color:blue" %)**AT+PRO=3 ** (%%) ~/~/Set to use MQTT protocol to uplink 278 278 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883 ** (%%) ~/~/Set MQTT server address and port ... ... @@ -279,17 +279,21 @@ 279 279 * (% style="color:blue" %)**AT+CLIENT=CLIENT ** (%%)~/~/Set up the CLIENT of MQTT 280 280 * (% style="color:blue" %)**AT+UNAME=UNAME **(%%)~/~/Set the username of MQTT 281 281 * (% style="color:blue" %)**AT+PWD=PWD **(%%)~/~/Set the password of MQTT 282 -* (% style="color:blue" %)**AT+PUBTOPIC= NDDS75_PUB283 -* (% style="color:blue" %)**AT+SUBTOPIC=N DDS75_SUB312 +* (% style="color:blue" %)**AT+PUBTOPIC=f9527 **(%%)~/~/Set the sending topic of MQTT 313 +* (% style="color:blue" %)**AT+SUBTOPIC=Ns9527 **(%%) ~/~/Set the subscription topic of MQTT 284 284 285 -[[image:165724 9978444-674.png]]315 +[[image:1657352634421-276.png]] 286 286 287 287 288 -[[image:16573 30723006-866.png]]318 +[[image:1657352645687-385.png]] 289 289 320 +((( 321 +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. 322 +))) 290 290 324 + 291 291 ((( 292 -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.326 +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. 293 293 ))) 294 294 295 295
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