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Last modified by Mengting Qiu on 2024/09/05 17:35
From version 84.5
edited by Xiaoling
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edited by Xiaoling
on 2023/09/11 14:04
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... ... @@ -16,21 +16,17 @@
16 16  == 1.1 What is DDS20-NB NB-IoT Ultrasonic liquid level Sensor ==
17 17  
18 18  
19 -The Dragino DDS20-NB is a **NB-IoT Ultrasonic liquid level sensor** for Internet of Things solution. It uses **none-contact method **to measure the **height of liquid** in a container without opening the container, and send IoT platform via NB-IoT network.
19 +The Dragino S31-NB and S31B-NB are (% style="color:blue" %)**NB-IoT Temperature and Humidity Sensor**(%%) for Internet of Things solution. It is used to measure the surrounding (% style="color:blue" %)**environment temperature and relative air humidity precisely**(%%), and then upload to IoT server via NB-IoT network*.
20 20  
21 -The DDS20-NB sensor is installed directly below the container to detect the height of the liquid level. User doesn't need to open a hole on the container to be tested. The none-contact measurement makes the measurement safety, easier and possible for some strict situation. 
21 +The temperature & humidity sensor used in S31-NB 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.
22 22  
23 -DDS20-NB uses **ultrasonic sensing technology** for distance measurement. DDS20-NB is of high accuracy to measure various liquid such as: **toxic substances**, **strong acids**, **strong alkalis** and **various pure liquids** in high-temperature and high-pressure airtight containers.
23 +S31-NB supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP**(%%) for different application requirement. and Support Uplinks to various IoT Servers.
24 24  
25 -PS-NB-NA supports different uplink methods including **MQTT, MQTTs, UDP & TCP** for different application requirement, and support uplinks to various IoT Servers.
25 +S31-NB 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 and uplink method. Please check related Power Analyze report).
26 26  
27 -PS-NB-NA **supports BLE configure **and** OTA update** which make user easy to use.
27 +*make sure you have NB-IoT coverage locally.
28 28  
29 -PS-NB-NA is powered by **8500mAh Li-SOCI2 battery**, it is designed for long-term use up to severa years.
30 30  
31 -PS-NB-NA has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.
32 -
33 -
34 34  [[image:image-20230911140426-2.png||height="320" width="951"]]
35 35  
36 36  
... ... @@ -39,15 +39,13 @@
39 39  
40 40  * NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
41 41  * Ultra-low power consumption
42 -* Liquid Level Measurement by Ultrasonic technology
43 -* Measure through container, No need to contact Liquid
44 -* Valid level range 20mm - 2000mm
45 -* Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
38 +* External 3 meters SHT31 probe (For S31-NB)
39 +* Measure range -40°C ~~ 85°C
40 +* Temperature & Humidity alarm
46 46  * Multiply Sampling and one uplink
47 47  * Support Bluetooth v5.1 remote configure and update firmware
48 48  * Uplink on periodically
49 49  * Downlink to change configure
50 -* IP66 Waterproof Enclosure
51 51  * 8500mAh Battery for long term use
52 52  * Nano SIM card slot for NB-IoT SIM
53 53  
... ... @@ -56,9 +56,23 @@
56 56  
57 57  (% style="color:blue" %)**Common DC Characteristics:**
58 58  
59 -* Supply Voltage: 2.5v ~~ 3.6v
53 +* Supply Voltage: 2.1v ~~ 3.6v
60 60  * Operating Temperature: -40 ~~ 85°C
61 61  
56 +(% style="color:blue" %)**Temperature Sensor:**
57 +
58 +* Range: -40 to + 80°C
59 +* Accuracy: ±0.2 @ 0-90 °C
60 +* Resolution: 0.1°C
61 +* Long Term Shift: <0.03 °C/yr
62 +
63 +(% style="color:blue" %)**Humidity Sensor: **
64 +
65 +* Range: 0 ~~ 99.9% RH
66 +* Accuracy: ± 2%RH ( 0 ~~ 100%RH)
67 +* Resolution: 0.01% RH
68 +* Long Term Shift: <0.25 %RH/yr
69 +
62 62  (% style="color:blue" %)**NB-IoT Spec:**
63 63  
64 64  (% style="color:#037691" %)**NB-IoT Module: BC660K-GL**
... ... @@ -96,144 +96,25 @@
96 96  * STOP Mode: 10uA @ 3.3v
97 97  * Max transmit power: 350mA@3.3v
98 98  
99 -== 1.4 Suitable Container & Liquid ==
107 +== 1.4 Applications ==
100 100  
101 101  
102 -* 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.
110 +* Smart Buildings & Home Automation
111 +* Logistics and Supply Chain Management
112 +* Smart Metering
113 +* Smart Agriculture
114 +* Smart Cities
115 +* Smart Factory
108 108  
109 -(% style="display:none" %)
117 +== 1.5 Sleep mode and working mode ==
110 110  
111 -== 1.5 Install DDS20-NB ==
112 112  
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 -
231 231  (% 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.
232 232  
233 233  (% 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.
234 234  
235 235  
236 -== 1.9 Button & LEDs ==
125 +== 1.6 Button & LEDs ==
237 237  
238 238  
239 239  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
... ... @@ -252,10 +252,10 @@
252 252  )))
253 253  |(% 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.
254 254  
255 -== 1.10 BLE connection ==
144 +== 1.7 BLE connection ==
256 256  
257 257  
258 -DDS20-NB support BLE remote configure and firmware update.
147 +S31x-NB support BLE remote configure and firmware update.
259 259  
260 260  
261 261  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:
... ... @@ -267,19 +267,21 @@
267 267  If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
268 268  
269 269  
270 -== 1.11 Pin Definitions & Switch ==
159 +== 1.8 Pin Definitions & Switch ==
271 271  
272 272  
162 +S31x-NB use the mother board from S31-NB which as below.
163 +
273 273  [[image:image-20230819104805-5.png]]
274 274  
275 275  
276 -=== 1.11.1 Jumper JP2 ===
167 +=== 1.8.1 Jumper JP2 ===
277 277  
278 278  
279 279  Power on Device when put this jumper.
280 280  
281 281  
282 -=== 1.11.2 BOOT MODE / SW1 ===
173 +=== 1.8.2 BOOT MODE / SW1 ===
283 283  
284 284  
285 285  **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.
... ... @@ -287,14 +287,44 @@
287 287  **2)** (% style="color:blue" %)**Flash**(%%): work mode, device starts to work and send out console output for further debug
288 288  
289 289  
290 -=== 1.11.3 Reset Button ===
181 +=== 1.8.3 Reset Button ===
291 291  
292 292  
293 293  Press to reboot the device.
294 294  
186 +
187 +== 1.9 Hardware Variant ==
188 +
189 +
190 +(% border="1" cellspacing="5" style="width:410px" %)
191 +|=(% 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
192 +|(% style="width:102px" %)(((
193 +S31-NB
194 +)))|(% style="width:126px" %)(((
195 +(% style="text-align:center" %)
196 +[[image:image-20230819110632-6.png||height="130" width="104"]]
197 +)))|(% style="width:179px" %)(((
198 +1 x SHT31 Probe
199 +
200 +Cable Length : 3 meters
201 +
202 +
203 +)))
204 +|(% style="width:102px" %)(((
205 +S31B-NB
206 +)))|(% style="width:126px" %)(((
207 +(% style="text-align:center" %)
208 +[[image:image-20230819110702-7.png||height="164" width="90"]]
209 +)))|(% style="width:179px" %)(((
210 +1 x SHT31 Probe
211 +
212 +Installed in device.
213 +)))
214 +
295 295  (% style="display:none" %)
296 296  
297 297  
218 +
298 298  = 2. Use S31-NB to communicate with IoT Server =
299 299  
300 300  == 2.1 Send data to IoT server via NB-IoT network ==