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Last modified by Mengting Qiu on 2024/09/05 17:35
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... ... @@ -96,25 +96,144 @@ 96 96 * STOP Mode: 10uA @ 3.3v 97 97 * Max transmit power: 350mA@3.3v 98 98 99 -== 1.4 Applications==99 +== 1.4 Suitable Container & Liquid == 100 100 101 101 102 -* S martBuildings& HomeAutomation103 -* LogisticsandSupplyChainManagement104 -* SmartMetering105 -* SmartAgriculture106 -* SmartCities107 -* SmartFactory102 +* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc. 103 +* Container shape is regular, and surface is smooth. 104 +* Container Thickness: 105 +** Pure metal material. 2~~8mm, best is 3~~5mm 106 +** Pure non metal material: <10 mm 107 +* Pure liquid without irregular deposition. 108 108 109 - ==1.5 Sleep modeand working mode==109 +(% style="display:none" %) 110 110 111 +== 1.5 Install DDS20-NB == 111 111 113 + 114 +(% style="color:blue" %)**Step 1**(%%): ** Choose the installation point.** 115 + 116 +DDS20-NB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position. 117 + 118 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615091045-3.png?rev=1.1||alt="image-20220615091045-3.png"]] 119 + 120 + 121 +((( 122 +(% style="color:blue" %)**Step 2**(%%): **Polish the installation point.** 123 +))) 124 + 125 +((( 126 +For Metal Surface with paint, it is important to polish the surface, first use crude sand paper to polish the paint level , then use exquisite sand paper to polish the metal level to make it shine & smooth. 127 +))) 128 + 129 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DDS20-LB_LoRaWAN_Ultrasonic_Liquid_Level_Sensor_User_Manual/WebHome/image-20230613143052-5.png?rev=1.1||alt="image-20230613143052-5.png"]] 130 + 131 + 132 +No polish needed if the container is shine metal surface without paint or non-metal container. 133 + 134 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DDS20-LB_LoRaWAN_Ultrasonic_Liquid_Level_Sensor_User_Manual/WebHome/image-20230613143125-6.png?rev=1.1||alt="image-20230613143125-6.png"]] 135 + 136 + 137 +((( 138 +(% style="color:blue" %)**Step3: **(%%)**Test the installation point.** 139 +))) 140 + 141 +((( 142 +Power on DDS20-NB, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point. 143 +))) 144 + 145 +((( 146 +It is necessary to put the coupling paste between the sensor and the container, otherwise DDS20-NB won't detect the liquid level. 147 +))) 148 + 149 +((( 150 +After paste the DDS20-NB well, power on DDS20-NB. In the first 30 seconds of booting, device will check the sensors status and BLUE LED will show the status as below. After 30 seconds, BLUE LED will be off to save battery life. 151 +))) 152 + 153 + 154 +((( 155 +(% style="color:blue" %)**LED Status:** 156 +))) 157 + 158 +* ((( 159 +**Onboard LED**: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well. 160 +))) 161 + 162 +* ((( 163 +(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** always ON**(%%): Sensor is power on but doesn't detect liquid. There is problem in installation point. 164 +))) 165 +* ((( 166 +(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** slowly blinking**(%%): Sensor detects Liquid Level, The installation point is good. 167 +))) 168 + 169 +((( 170 +DDS20-NB will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that. 171 +))) 172 + 173 + 174 +((( 175 +(% style="color:red" %)**Note :**(%%)** (% style="color:blue" %)Ultrasonic coupling paste(%%)**(% style="color:blue" %) (%%) is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally. 176 +))) 177 + 178 + 179 +((( 180 +(% style="color:blue" %)**Step4: **(%%)**Install use Epoxy ab glue.** 181 +))) 182 + 183 +((( 184 +Prepare Eproxy AB glue. 185 +))) 186 + 187 +((( 188 +Put Eproxy AB glue in the sensor and press it hard on the container installation point. 189 +))) 190 + 191 +((( 192 +Reset DDS20-NB and see if the BLUE LED is slowly blinking. 193 +))) 194 + 195 +[[image:image-20230809172509-1.png]] 196 + 197 +((( 198 +(% style="color:red" %)**Note :**(% style="color:red; display:none" %)** ** 199 + 200 +(% style="color:red" %)**1:**(%%)** (% style="color:blue" %)Eproxy AB glue(%%)** needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position. 201 +))) 202 + 203 +((( 204 +(% style="color:red" %)**2:**(%%)** (% style="color:blue" %)Eproxy AB glue(%%)** is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally. 205 +))) 206 + 207 + 208 +== 1.6 Applications == 209 + 210 + 211 +* Smart liquid control solution 212 + 213 +* Smart liquefied gas solution 214 + 215 +== 1.7 Precautions == 216 + 217 + 218 +* At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights. 219 + 220 +* For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container. 221 + 222 +* When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable. 223 + 224 +(% style="display:none" %) 225 + 226 + 227 + 228 +== 1.8 Sleep mode and working mode == 229 + 230 + 112 112 (% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life. 113 113 114 114 (% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode. 115 115 116 116 117 -== 1. 6Button & LEDs ==236 +== 1.9 Button & LEDs == 118 118 119 119 120 120 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]] ... ... @@ -133,10 +133,10 @@ 133 133 ))) 134 134 |(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode. 135 135 136 -== 1. 7BLE connection ==255 +== 1.10 BLE connection == 137 137 138 138 139 -S 31x-NB support BLE remote configure and firmware update.258 +DDS20-NB support BLE remote configure and firmware update. 140 140 141 141 142 142 BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case: ... ... @@ -148,21 +148,19 @@ 148 148 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode. 149 149 150 150 151 -== 1. 8Pin Definitions & Switch ==270 +== 1.11 Pin Definitions & Switch == 152 152 153 153 154 -S31x-NB use the mother board from S31-NB which as below. 155 - 156 156 [[image:image-20230819104805-5.png]] 157 157 158 158 159 -=== 1. 8.1 Jumper JP2 ===276 +=== 1.11.1 Jumper JP2 === 160 160 161 161 162 162 Power on Device when put this jumper. 163 163 164 164 165 -=== 1. 8.2 BOOT MODE / SW1 ===282 +=== 1.11.2 BOOT MODE / SW1 === 166 166 167 167 168 168 **1)** (% style="color:blue" %)**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. ... ... @@ -170,44 +170,14 @@ 170 170 **2)** (% style="color:blue" %)**Flash**(%%): work mode, device starts to work and send out console output for further debug 171 171 172 172 173 -=== 1. 8.3 Reset Button ===290 +=== 1.11.3 Reset Button === 174 174 175 175 176 176 Press to reboot the device. 177 177 178 - 179 -== 1.9 Hardware Variant == 180 - 181 - 182 -(% border="1" cellspacing="5" style="width:410px" %) 183 -|=(% style="width: 102px;background-color:#4F81BD;color:white" %)Model|=(% style="width: 126px; background-color:#4F81BD;color:white" %)Photo|=(% style="width: 179px;background-color:#4F81BD;color:white" %)Probe Info 184 -|(% style="width:102px" %)((( 185 -S31-NB 186 -)))|(% style="width:126px" %)((( 187 -(% style="text-align:center" %) 188 -[[image:image-20230819110632-6.png||height="130" width="104"]] 189 -)))|(% style="width:179px" %)((( 190 -1 x SHT31 Probe 191 - 192 -Cable Length : 3 meters 193 - 194 - 195 -))) 196 -|(% style="width:102px" %)((( 197 -S31B-NB 198 -)))|(% style="width:126px" %)((( 199 -(% style="text-align:center" %) 200 -[[image:image-20230819110702-7.png||height="164" width="90"]] 201 -)))|(% style="width:179px" %)((( 202 -1 x SHT31 Probe 203 - 204 -Installed in device. 205 -))) 206 - 207 207 (% style="display:none" %) 208 208 209 209 210 - 211 211 = 2. Use S31-NB to communicate with IoT Server = 212 212 213 213 == 2.1 Send data to IoT server via NB-IoT network ==