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1 -S31-NB/S31B-NB_BN-IoT Outdoor Temperature & Humidity Sensor User Manual
1 +DDS20-NB -- NB-IoT Ultrasonic Liquid Level Sensor User Manual
Content
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1 1  (% style="text-align:center" %)
2 -[[image:image-20230819102136-3.png]]
2 +[[image:image-20230911134259-1.png||height="570" width="570"]]
3 3  
4 4  
5 -
6 6  **Table of Contents:**
7 7  
8 8  {{toc/}}
... ... @@ -14,62 +14,52 @@
14 14  
15 15  = 1. Introduction =
16 16  
17 -== 1.1 What is S31x-NB NB-IoT Temperature & Humidity Sensor ==
16 +== 1.1 What is DDS20-NB NB-IoT Ultrasonic liquid level Sensor ==
18 18  
19 19  
20 -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*.
19 +The Dragino DDS20-NB is **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.
21 21  
22 -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.
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. 
23 23  
24 -S31-NB supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP**(%%) for different application requirement. and Support Uplinks to various IoT Servers.
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.
25 25  
26 -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).
25 +PS-NB-NA supports different uplink methods including **MQTT, MQTTs, UDP & TCP** for different application requirement, and support uplinks to various IoT Servers.
27 27  
28 -*make sure you have NB-IoT coverage locally.
27 +PS-NB-NA **supports BLE configure **and** OTA update** which make user easy to use.
29 29  
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 -[[image:1692411831805-116.png]]
31 +PS-NB-NA has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.
32 32  
33 33  
34 +[[image:image-20230911140426-2.png||height="320" width="951"]]
35 +
36 +
34 34  == 1.2 ​Features ==
35 35  
36 36  
37 37  * NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
38 38  * Ultra-low power consumption
39 -* External 3 meters SHT31 probe (For S31-NB)
40 -* Measure range -40°C ~~ 85°C
41 -* Temperature & Humidity alarm
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)
42 42  * Multiply Sampling and one uplink
43 43  * Support Bluetooth v5.1 remote configure and update firmware
44 44  * Uplink on periodically
45 45  * Downlink to change configure
50 +* IP66 Waterproof Enclosure
46 46  * 8500mAh Battery for long term use
47 47  * Nano SIM card slot for NB-IoT SIM
48 48  
49 -
50 -
51 51  == 1.3 Specification ==
52 52  
53 53  
54 54  (% style="color:blue" %)**Common DC Characteristics:**
55 55  
56 -* Supply Voltage: 2.1v ~~ 3.6v
59 +* Supply Voltage: 2.5v ~~ 3.6v
57 57  * Operating Temperature: -40 ~~ 85°C
58 58  
59 -(% style="color:blue" %)**Temperature Sensor:**
60 -
61 -* Range: -40 to + 80°C
62 -* Accuracy: ±0.2 @ 0-90 °C
63 -* Resolution: 0.1°C
64 -* Long Term Shift: <0.03 °C/yr
65 -
66 -(% style="color:blue" %)**Humidity Sensor: **
67 -
68 -* Range: 0 ~~ 99.9% RH
69 -* Accuracy: ± 2%RH ( 0 ~~ 100%RH)
70 -* Resolution: 0.01% RH
71 -* Long Term Shift: <0.25 %RH/yr
72 -
73 73  (% style="color:blue" %)**NB-IoT Spec:**
74 74  
75 75  (% style="color:#037691" %)**NB-IoT Module: BC660K-GL**
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107 107  * STOP Mode: 10uA @ 3.3v
108 108  * Max transmit power: 350mA@3.3v
109 109  
99 +== 1.4 Suitable Container & Liquid ==
110 110  
111 111  
112 -== 1.4 Applications ==
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.
113 113  
109 +(% style="display:none" %)
114 114  
115 -* Smart Buildings & Home Automation
116 -* Logistics and Supply Chain Management
117 -* Smart Metering
118 -* Smart Agriculture
119 -* Smart Cities
120 -* Smart Factory
111 +== 1.5 Install DDS20-NB ==
121 121  
122 122  
114 +(% style="color:blue" %)**Step 1**(%%):  ** Choose the installation point.**
123 123  
124 -== 1.5 Sleep mode and working mode ==
116 +DDS20-NB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
125 125  
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"]]
126 126  
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 +
127 127  (% 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.
128 128  
129 129  (% 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.
130 130  
131 131  
132 -== 1.6 Button & LEDs ==
236 +== 1.9 Button & LEDs ==
133 133  
134 134  
135 135  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
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148 148  )))
149 149  |(% 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.
150 150  
255 +== 1.10 BLE connection ==
151 151  
152 152  
153 -== 1.7 BLE connection ==
258 +DDS20-NB support BLE remote configure and firmware update.
154 154  
155 155  
156 -S31x-NB support BLE remote configure and firmware update.
157 -
158 -
159 159  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:
160 160  
161 161  * Press button to send an uplink
... ... @@ -165,21 +165,19 @@
165 165  If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
166 166  
167 167  
168 -== 1.8 Pin Definitions & Switch ==
270 +== 1.11 Pin Definitions & Switch ==
169 169  
170 170  
171 -S31x-NB use the mother board from S31-NB which as below.
172 -
173 173  [[image:image-20230819104805-5.png]]
174 174  
175 175  
176 -=== 1.8.1 Jumper JP2 ===
276 +=== 1.11.1 Jumper JP2 ===
177 177  
178 178  
179 179  Power on Device when put this jumper.
180 180  
181 181  
182 -=== 1.8.2 BOOT MODE / SW1 ===
282 +=== 1.11.2 BOOT MODE / SW1 ===
183 183  
184 184  
185 185  **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.
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187 187  **2)** (% style="color:blue" %)**Flash**(%%): work mode, device starts to work and send out console output for further debug
188 188  
189 189  
190 -=== 1.8.3 Reset Button ===
290 +=== 1.11.3 Reset Button ===
191 191  
192 192  
193 193  Press to reboot the device.
194 194  
195 -
196 -== 1.9 Hardware Variant ==
197 -
198 -
199 -(% border="1" cellspacing="5" style="width:410px" %)
200 -|=(% 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
201 -|(% style="width:102px" %)(((
202 -S31-NB
203 -)))|(% style="width:126px" %)(((
204 -(% style="text-align:center" %)
205 -[[image:image-20230819110632-6.png||height="130" width="104"]]
206 -)))|(% style="width:179px" %)(((
207 -1 x SHT31 Probe
208 -
209 -Cable Length : 3 meters
210 -
211 -
212 -)))
213 -|(% style="width:102px" %)(((
214 -S31B-NB
215 -)))|(% style="width:126px" %)(((
216 -(% style="text-align:center" %)
217 -[[image:image-20230819110702-7.png||height="164" width="90"]]
218 -)))|(% style="width:179px" %)(((
219 -1 x SHT31 Probe
220 -
221 -Installed in device.
222 -)))
223 -
224 224  (% style="display:none" %)
225 225  
226 226  
227 -
228 228  = 2. Use S31-NB to communicate with IoT Server =
229 229  
230 230  == 2.1 Send data to IoT server via NB-IoT network ==
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312 312  
313 313  * Json entry 1 ~~ 8 are the last 1 ~~ 8 sampling data as specify by (% style="color:#037691" %)**AT+NOUD=8 ** (%%)Command. Each entry includes (from left to right): Temperature, Humidity, Sampling time.
314 314  
315 -
316 -
317 317  === 2.2.2 HEX format Payload(Type~=0) ===
318 318  
319 319  
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446 446  
447 447  * If user only want to send only min or max, user can set the alarm to a value that device won’t reach. For example: (% style="color:#037691" %)**AT+SHTEMP=-80,0.**
448 448  
449 -
450 -
451 451  == 2.6 Trggier an uplink by external interrupt ==
452 452  
453 453  
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465 465  
466 466  * (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
467 467  
468 -
469 -
470 470  = 3. Configure S31x-NB =
471 471  
472 472  == 3.1 Configure Methods ==
... ... @@ -478,8 +478,6 @@
478 478  
479 479  * AT Command via UART Connection : See [[UART Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
480 480  
481 -
482 -
483 483  == 3.2 AT Commands Set ==
484 484  
485 485  
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585 585  
586 586  * Update through UART TTL interface : **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
587 587  
588 -
589 -
590 590  = 6. FAQ =
591 591  
592 592  == 6.1 How can I access t BC660K-GL AT Commands? ==
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630 630  
631 631  * Weight / pcs : 180g
632 632  
633 -
634 -
635 635  = 9. Support =
636 636  
637 637  
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