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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 79.18
edited by Xiaoling
on 2023/06/13 15:50
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To version 113.8
edited by Xiaoling
on 2023/11/10 10:23
Change comment: There is no comment for this version

Summary

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Title
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1 -DDS20-LB -- LoRaWAN Ultrasonic Liquid Level Sensor User Manual
1 +DS20L -- LoRaWAN Smart Distance Detector User Manual
Content
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1 1  (% style="text-align:center" %)
2 -[[image:image-20230613133716-2.png||height="717" width="717"]]
2 +[[image:image-20231110085342-2.png||height="481" width="481"]]
3 3  
4 4  
5 5  
... ... @@ -19,448 +19,416 @@
19 19  
20 20  = 1. Introduction =
21 21  
22 -== 1.1 What is LoRaWAN Ultrasonic liquid level Sensor ==
22 +== 1.1 What is LoRaWAN Smart Distance Detector ==
23 23  
24 24  
25 -The Dragino DDS20-LB is a (% style="color:blue" %)**LoRaWAN Ultrasonic liquid level sensor**(%%) for Internet of Things solution. It uses (% style="color:blue" %)**none-contact method **(%%)to measure the (% style="color:blue" %)**height of liquid**(%%) in a container without opening the container, and send the value via LoRaWAN network to IoT Server.
25 +The Dragino (% style="color:blue" %)**DS20L is a smart distance detector**(%%) base on long-range wireless LoRaWAN technology. It uses (% style="color:blue" %)**LiDAR sensor**(%%) to detect the distance between DS20L and object, then DS20L will send the distance data to the IoT Platform via LoRaWAN.
26 26  
27 -The DDS20-LB 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. 
27 +DS20L allows users to send data and reach extremely long ranges via LoRaWAN. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current 
28 +consumption. It targets professional wireless sensor network applications such smart cities, building automation, and so on.
28 28  
29 -DDS20-LB uses (% style="color:blue" %)**ultrasonic sensing technology**(%%) for distance measurement. DDS20-LB is of high accuracy to measure various liquid such as: (% style="color:blue" %)**toxic substances**(%%), (% style="color:blue" %)**strong acids**(%%), (% style="color:blue" %)**strong alkalis**(%%) and (% style="color:blue" %)**various pure liquids**(%%) in high-temperature and high-pressure airtight containers.
30 +DS20L has a (% style="color:blue" %)**built-in 2400mAh non-chargeable battery**(%%) for long-term use up to several years*. Users can also power DS20L with an external power source for (% style="color:blue" %)**continuous measuring and distance alarm / counting purposes.**
30 30  
31 -The LoRa wireless technology used in DDS20-LB allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
32 +DS20L is fully compatible with (% style="color:blue" %)**LoRaWAN v1.0.3 Class A protocol**(%%), it can work with a standard LoRaWAN gateway.
32 32  
33 -DDS20-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
34 +DS20L supports (% style="color:blue" %)**Datalog feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
34 34  
35 -DDS20-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
36 +[[image:image-20231110091506-4.png||height="391" width="768"]]
36 36  
37 -Each DDS20-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
38 38  
39 -[[image:image-20230613140115-3.png||height="453" width="800"]]
40 -
41 -
42 42  == 1.2 ​Features ==
43 43  
44 44  
45 -* LoRaWAN 1.0.3 Class A
46 -* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
47 -* Ultra-low power consumption
48 -* Liquid Level Measurement by Ultrasonic technology
49 -* Measure through container, No need to contact Liquid
50 -* Valid level range 20mm - 2000mm
51 -* Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
52 -* Cable Length : 25cm
53 -* Support Bluetooth v5.1 and LoRaWAN remote configure
54 -* Support wireless OTA update firmware
42 +* LoRaWAN Class A protocol
43 +* LiDAR distance detector, range 3 ~~ 200cm
44 +* Periodically detect or continuously detect mode
55 55  * AT Commands to change parameters
56 -* Downlink to change configure
57 -* IP66 Waterproof Enclosure
58 -* 8500mAh Battery for long term use
46 +* Remotely configure parameters via LoRaWAN Downlink
47 +* Alarm & Counting mode
48 +* Datalog Feature
49 +* Firmware upgradable via program port or LoRa protocol
50 +* Built-in 2400mAh battery or power by external power source
59 59  
60 -
61 -
62 62  == 1.3 Specification ==
63 63  
64 64  
65 -(% style="color:#037691" %)**Common DC Characteristics:**
55 +(% style="color:#037691" %)**LiDAR Sensor:**
66 66  
67 -* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
68 -* Operating Temperature: -40 ~~ 85°C
57 +* Operation Temperature: -40 ~~ 80 °C
58 +* Operation Humidity: 0~~99.9%RH (no Dew)
59 +* Storage Temperature: -10 ~~ 45°C
60 +* Measure Range: 3cm~~200cm @ 90% reflectivity
61 +* Accuracy: ±2cm @ (3cm~~100cm); ±5% @ (100~~200cm)
62 +* ToF FoV: ±9°, Total 18°
63 +* Light source: VCSEL
69 69  
70 -(% style="color:#037691" %)**LoRa Spec:**
71 71  
72 -* Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
73 -* Max +22 dBm constant RF output vs.
74 -* RX sensitivity: down to -139 dBm.
75 -* Excellent blocking immunity
66 +(% style="display:none" %)
76 76  
77 -(% style="color:#037691" %)**Battery:**
78 78  
79 -* Li/SOCI2 un-chargeable battery
80 -* Capacity: 8500mAh
81 -* Self-Discharge: <1% / Year @ 25°C
82 -* Max continuously current: 130mA
83 -* Max boost current: 2A, 1 second
69 += 2. Configure DS20L to connect to LoRaWAN network =
84 84  
85 -(% style="color:#037691" %)**Power Consumption**
71 +== 2.1 How it works ==
86 86  
87 -* Sleep Mode: 5uA @ 3.3v
88 -* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
89 89  
74 +The DS20L is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the DS20L. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
90 90  
76 +(% style="display:none" %) (%%)
91 91  
92 -== 1.4 Suitable Container & Liquid ==
78 +== 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
93 93  
94 94  
95 -* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
96 -* Container shape is regular, and surface is smooth.
97 -* Container Thickness:
98 -** Pure metal material.  2~~8mm, best is 3~~5mm
99 -** Pure non metal material: <10 mm
100 -* Pure liquid without irregular deposition.
81 +Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
101 101  
83 +The LPS8v2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
102 102  
85 +[[image:image-20231110091447-3.png||height="383" width="752"]](% style="display:none" %)
103 103  
104 -(% style="display:none" %)
105 105  
106 -== 1.5 Install DDS20-LB ==
88 +(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DS20L.
107 107  
90 +Each DS20L is shipped with a sticker with the default device EUI as below:
108 108  
109 -(% style="color:blue" %)**Step 1**(%%):  ** Choose the installation point.**
92 +[[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
110 110  
111 -DDS20-LB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
112 112  
113 -[[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"]]
95 +You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
114 114  
115 115  
116 -(((
117 -(% style="color:blue" %)**Step 2**(%%):  **Polish the installation point.**
118 -)))
98 +(% style="color:blue" %)**Register the device**
119 119  
120 -(((
121 -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.
122 -)))
100 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/1654935135620-998.png?rev=1.1||alt="1654935135620-998.png"]]
123 123  
124 -[[image:image-20230613143052-5.png]]
125 125  
103 +(% style="color:blue" %)**Add APP EUI and DEV EUI**
126 126  
127 -No polish needed if the container is shine metal surface without paint or non-metal container.
105 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-4.png?width=753&height=551&rev=1.1||alt="图片-20220611161308-4.png"]]
128 128  
129 -[[image:image-20230613143125-6.png]]
130 130  
108 +(% style="color:blue" %)**Add APP EUI in the application**
131 131  
132 -(((
133 -(% style="color:blue" %)**Step3:   **(%%)**Test the installation point.**
134 -)))
135 135  
136 -(((
137 -Power on DDS20-LB, 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.
138 -)))
111 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-5.png?width=742&height=601&rev=1.1||alt="图片-20220611161308-5.png"]]
139 139  
140 -(((
141 -It is necessary to put the coupling paste between the sensor and the container, otherwise DDS20-LB won't detect the liquid level.
142 -)))
143 143  
144 -(((
145 -After paste the DDS20-LB well, power on DDS20-LB. 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.
146 -)))
114 +(% style="color:blue" %)**Add APP KEY**
147 147  
116 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-6.png?width=744&height=485&rev=1.1||alt="图片-20220611161308-6.png"]]
148 148  
149 -(((
150 -(% style="color:blue" %)**LED Status:**
151 -)))
152 152  
153 -* (((
154 -**Onboard LED**: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
155 -)))
119 +(% style="color:blue" %)**Step 2:**(%%) Activate on DS20L
156 156  
157 -* (((
158 -(% 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.
159 -)))
160 -* (((
161 -(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** slowly blinking**(%%): Sensor detects Liquid Level, The installation point is good.
162 -)))
163 163  
164 -(((
165 -LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
166 -)))
122 +Press the button for 5 seconds to activate the DS20L.
167 167  
124 +(% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
168 168  
169 -(((
170 -(% 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.
171 -)))
126 +After join success, it will start to upload messages to TTN and you can see the messages in the panel.
172 172  
173 173  
174 -(((
175 -(% style="color:blue" %)**Step4:   **(%%)**Install use Epoxy ab glue.**
176 -)))
129 +== 2.3 ​Uplink Payload ==
177 177  
178 -(((
179 -Prepare Eproxy AB glue.
180 -)))
131 +=== 2.3.1 Device Status, FPORT~=5 ===
181 181  
182 -(((
183 -Put Eproxy AB glue in the sensor and press it hard on the container installation point.
184 -)))
185 185  
186 -(((
187 -Reset DDS20-LB and see if the BLUE LED is slowly blinking.
188 -)))
134 +Users can use the downlink command(**0x26 01**) to ask DS20L to send device configure detail, include device configure status. DS20L will uplink a payload via FPort=5 to server.
189 189  
190 -[[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-20220615091045-8.png?width=341&height=203&rev=1.1||alt="image-20220615091045-8.png"]] [[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-20220615091045-9.png?width=284&height=200&rev=1.1||alt="image-20220615091045-9.png"]]
136 +The Payload format is as below.
191 191  
138 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
139 +|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
140 +**Size(bytes)**
141 +)))|=(% style="width: 100px; background-color: #4F81BD;color:white;" %)**1**|=(% style="width: 100px; background-color: #4F81BD;color:white;" %)**2**|=(% style="background-color: #4F81BD;color:white; width: 100px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 100px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 50px;" %)**2**
142 +|(% style="width:62.5px" %)Value|(% style="width:110px" %)Sensor Model|(% style="width:48px" %)Firmware Version|(% style="width:94px" %)Frequency Band|(% style="width:91px" %)Sub-band|(% style="width:60px" %)BAT
192 192  
193 -(((
194 -(% style="color:red" %)**Note :**
144 +Example parse in TTNv3
195 195  
196 -(% 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.
197 -)))
146 +[[image:image-20230805103904-1.png||height="131" width="711"]]
198 198  
199 -(((
200 -(% 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.
201 -)))
148 +(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x24
202 202  
150 +(% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
203 203  
204 -== 1.6 Applications ==
152 +(% style="color:blue" %)**Frequency Band**:
205 205  
154 +0x01: EU868
206 206  
207 -* Smart liquid control solution
156 +0x02: US915
208 208  
209 -* Smart liquefied gas solution
158 +0x03: IN865
210 210  
160 +0x04: AU915
211 211  
162 +0x05: KZ865
212 212  
213 -== 1.7 Precautions ==
164 +0x06: RU864
214 214  
166 +0x07: AS923
215 215  
216 -* 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.
168 +0x08: AS923-1
217 217  
218 -* 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.
170 +0x09: AS923-2
219 219  
220 -* 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.
172 +0x0a: AS923-3
221 221  
174 +0x0b: CN470
222 222  
223 -(% style="display:none" %)
176 +0x0c: EU433
224 224  
225 -== 1.8 Sleep mode and working mode ==
178 +0x0d: KR920
226 226  
180 +0x0e: MA869
227 227  
228 -(% 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.
182 +(% style="color:blue" %)**Sub-Band**:
229 229  
230 -(% 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.
184 +AU915 and US915:value 0x00 ~~ 0x08
231 231  
186 +CN470: value 0x0B ~~ 0x0C
232 232  
233 -== 1.9 Button & LEDs ==
188 +Other Bands: Always 0x00
234 234  
190 +(% style="color:blue" %)**Battery Info**:
235 235  
236 -[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
192 +Check the battery voltage.
237 237  
194 +Ex1: 0x0B45 = 2885mV
238 238  
239 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
240 -|=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)**Action**
241 -|(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
242 -If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
243 -Meanwhile, BLE module will be active and user can connect via BLE to configure device.
244 -)))
245 -|(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
246 -(% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
247 -(% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
248 -Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.
249 -)))
250 -|(% 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.
196 +Ex2: 0x0B49 = 2889mV
251 251  
252 252  
199 +=== 2.3.2 Uplink Payload, FPORT~=2 ===
253 253  
254 -== 1.10 BLE connection ==
255 255  
202 +(((
203 +DS20L will send this uplink **after** Device Status once join the LoRaWAN network successfully. And DS20L will:
256 256  
257 -DDS20-LB support BLE remote configure.
205 +periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
258 258  
259 -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:
207 +Uplink Payload totals 11 bytes.
208 +)))
260 260  
261 -* Press button to send an uplink
262 -* Press button to active device.
263 -* Device Power on or reset.
210 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
211 +|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
212 +**Size(bytes)**
213 +)))|=(% style="width: 30px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 70px;background-color:#4F81BD;color:white" %)**2**|=(% style="background-color:#4F81BD;color:white; width: 80px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 70px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 70px;" %)**1**
214 +|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((
215 +[[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]
216 +)))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((
217 +[[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]
218 +)))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((
219 +[[Message Type>>||anchor="HMessageType"]]
220 +)))
264 264  
265 -If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
222 +[[image:image-20230805104104-2.png||height="136" width="754"]]
266 266  
267 267  
268 -== 1.11 Pin Definitions ==
225 +==== (% style="color:blue" %)**Battery Info**(%%) ====
269 269  
270 -[[image:image-20230523174230-1.png]]
271 271  
228 +Check the battery voltage for DS20L.
272 272  
273 -== 1.12 Mechanical ==
230 +Ex1: 0x0B45 = 2885mV
274 274  
232 +Ex2: 0x0B49 = 2889mV
275 275  
276 -[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
277 277  
235 +==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
278 278  
279 -[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
280 280  
238 +This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
281 281  
282 -[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
283 283  
241 +**Example**:
284 284  
285 -(% style="color:blue" %)**Probe Mechanical:**
243 +If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
286 286  
287 -[[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-20220615090910-1.png?rev=1.1||alt="image-20220615090910-1.png"]]
245 +If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
288 288  
289 289  
290 -[[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-20220615090910-2.png?rev=1.1||alt="image-20220615090910-2.png"]]
248 +==== (% style="color:blue" %)**Distance**(%%) ====
291 291  
292 292  
293 -= 2. Configure DDS20-LB to connect to LoRaWAN network =
251 +Represents the distance value of the measurement output, the default unit is cm, and the value range parsed as a decimal number is 0-1200. In actual use, when the signal strength value Strength.
294 294  
295 -== 2.1 How it works ==
296 296  
254 +**Example**:
297 297  
298 -The DDS20-LB is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the DDS20-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
256 +If the data you get from the register is 0x0B 0xEA, the distance between the sensor and the measured object is 0BEA(H) = 3050 (D)/10 = 305cm.
299 299  
300 -(% style="display:none" %) (%%)
301 301  
302 -== 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
259 +==== (% style="color:blue" %)**Distance signal strength**(%%) ====
303 303  
304 304  
305 -Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
262 +Refers to the signal strength, the default output value will be between 0-65535. When the distance measurement gear is fixed, the farther the distance measurement is, the lower the signal strength; the lower the target reflectivity, the lower the signal strength. When Strength is greater than 100 and not equal to 65535, the measured value of Dist is considered credible.
306 306  
307 -The LPS8v2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
308 308  
309 -[[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %)
265 +**Example**:
310 310  
267 +If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
311 311  
312 -(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS20-LB.
269 +Customers can judge whether they need to adjust the environment based on the signal strength.
313 313  
314 -Each DDS20-LB is shipped with a sticker with the default device EUI as below:
315 315  
316 -[[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
272 +**1) When the sensor detects valid data:**
317 317  
274 +[[image:image-20230805155335-1.png||height="145" width="724"]]
318 318  
319 -You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
320 320  
277 +**2) When the sensor detects invalid data:**
321 321  
322 -(% style="color:blue" %)**Register the device**
279 +[[image:image-20230805155428-2.png||height="139" width="726"]]
323 323  
324 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/1654935135620-998.png?rev=1.1||alt="1654935135620-998.png"]]
325 325  
282 +**3) When the sensor is not connected:**
326 326  
327 -(% style="color:blue" %)**Add APP EUI and DEV EUI**
284 +[[image:image-20230805155515-3.png||height="143" width="725"]]
328 328  
329 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-4.png?width=753&height=551&rev=1.1||alt="图片-20220611161308-4.png"]]
330 330  
287 +==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
331 331  
332 -(% style="color:blue" %)**Add APP EUI in the application**
333 333  
290 +This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3.2SetInterruptMode"]] for the hardware and software set up.
334 334  
335 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-5.png?width=742&height=601&rev=1.1||alt="图片-20220611161308-5.png"]]
292 +Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.8PinDefinitions"]] of GPIO_EXTI .
336 336  
294 +**Example:**
337 337  
338 -(% style="color:blue" %)**Add APP KEY**
296 +If byte[0]&0x01=0x00 : Normal uplink packet.
339 339  
340 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-6.png?width=744&height=485&rev=1.1||alt="图片-20220611161308-6.png"]]
298 +If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
341 341  
342 342  
343 -(% style="color:blue" %)**Step 2:**(%%) Activate on DDS20-LB
301 +==== (% style="color:blue" %)**LiDAR temp**(%%) ====
344 344  
345 345  
346 -Press the button for 5 seconds to activate the DDS20-LB.
304 +Characterize the internal temperature value of the sensor.
347 347  
348 -(% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
306 +**Example: **
307 +If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
308 +If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
349 349  
350 -After join success, it will start to upload messages to TTN and you can see the messages in the panel.
351 351  
311 +==== (% style="color:blue" %)**Message Type**(%%) ====
352 352  
353 -== 2.3  ​Uplink Payload ==
354 354  
355 -
356 356  (((
357 -DDS20-LB will uplink payload via LoRaWAN with below payload format: 
315 +For a normal uplink payload, the message type is always 0x01.
358 358  )))
359 359  
360 360  (((
361 -Uplink payload includes in total 8 bytes.
319 +Valid Message Type:
362 362  )))
363 363  
364 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
365 -|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
366 -**Size(bytes)**
367 -)))|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="background-color:#D9E2F3;color:#0070C0" %)1|=(% style="background-color:#D9E2F3;color:#0070C0" %)2|=(% style="background-color:#D9E2F3;color:#0070C0" %)**1**
368 -|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
369 -[[Distance>>||anchor="H2.3.2A0Distance"]]
370 -(unit: mm)
371 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
372 -[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
373 -)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
322 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
323 +|=(% style="width: 161px;background-color:#4F81BD;color:white" %)**Message Type Code**|=(% style="width: 164px;background-color:#4F81BD;color:white" %)**Description**|=(% style="width: 174px;background-color:#4F81BD;color:white" %)**Payload**
324 +|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload
325 +|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload
374 374  
375 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/1654850511545-399.png?rev=1.1||alt="1654850511545-399.png"]]
327 +[[image:image-20230805150315-4.png||height="233" width="723"]]
376 376  
377 377  
378 -=== 2.3.1  Battery Info ===
330 +=== 2.3.3 Historical measuring distance, FPORT~=3 ===
379 379  
380 380  
381 -Check the battery voltage for DDS20-LB.
333 +DS20L stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
382 382  
383 -Ex1: 0x0B45 = 2885mV
335 +The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
384 384  
385 -Ex2: 0x0B49 = 2889mV
337 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
338 +|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
339 +**Size(bytes)**
340 +)))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)1|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 70px;background-color:#4F81BD;color:white" %)**2**|=(% style="background-color:#4F81BD; color: white; width: 85px;" %)**1**|=(% style="background-color: #4F81BD; color: white; width: 85px;" %)4
341 +|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)Interrupt flag & Interrupt_level|(% style="width:62.5px" %)(((
342 +Reserve(0xFF)
343 +)))|Distance|Distance signal strength|(% style="width:88px" %)(((
344 +LiDAR temp
345 +)))|(% style="width:85px" %)Unix TimeStamp
386 386  
347 +**Interrupt flag & Interrupt level:**
387 387  
388 -=== 2.3.2  Distance ===
349 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
350 +|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
351 +**Size(bit)**
352 +)))|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**bit7**|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**bit6**|=(% style="width: 60px;background-color:#4F81BD;color:white" %)**[bit5:bit2]**|=(% style="width: 90px; background-color: #4F81BD; color: white;" %)**bit1**|=(% style="background-color: #4F81BD; color: white; width: 90px;" %)**bit0**
353 +|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)No ACK message|(% style="width:62.5px" %)Poll Message Flag|Reserve|(% style="width:91px" %)Interrupt level|(% style="width:88px" %)(((
354 +Interrupt flag
355 +)))
389 389  
390 -
391 -(((
392 -Get the distance. Flat object range 20mm - 2000mm.
357 +* (((
358 +Each data entry is 11 bytes and has the same structure as [[Uplink Payload>>||anchor="H2.3.2UplinkPayload2CFPORT3D2"]], to save airtime and battery, DS20L will send max bytes according to the current DR and Frequency bands.
393 393  )))
394 394  
395 -(((
396 -For example, if the data you get from the register is **0x06 0x05**, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** **
361 +For example, in the US915 band, the max payload for different DR is:
397 397  
398 -(% style="color:blue" %)**0605(H) = 1541 (D) = 1541 mm.**
399 -)))
363 +**a) DR0:** max is 11 bytes so one entry of data
400 400  
401 -* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
365 +**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
402 402  
403 -* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
367 +**c) DR2:** total payload includes 11 entries of data
404 404  
405 -=== 2.3.3  Interrupt Pin ===
369 +**d) DR3:** total payload includes 22 entries of data.
406 406  
371 +If DS20L doesn't have any data in the polling time. It will uplink 11 bytes of 0
407 407  
408 -This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3.2SetInterruptMode"]] for the hardware and software set up.
409 409  
410 -**Example:**
374 +**Downlink:**
411 411  
412 -0x00: Normal uplink packet.
376 +0x31 64 CC 68 0C 64 CC 69 74 05
413 413  
414 -0x01: Interrupt Uplink Packet.
378 +[[image:image-20230805144936-2.png||height="113" width="746"]]
415 415  
380 +**Uplink:**
416 416  
417 -=== 2.3.4  DS18B20 Temperature sensor ===
382 +43 FF 0E 10 00 B0 1E 64 CC 68 0C 40 FF 0D DE 00 A8 1E 64 CC 68 29 40 FF 09 92 00 D3 1E 64 CC 68 65 40 FF 02 3A 02 BC 1E 64 CC 68 A1 41 FF 0E 1A 00 A4 1E 64 CC 68 C0 40 FF 0D 2A 00 B8 1E 64 CC 68 E8 40 FF 00 C8 11 6A 1E 64 CC 69 24 40 FF 0E 24 00 AD 1E 64 CC 69 6D
418 418  
419 419  
420 -This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
385 +**Parsed Value:**
421 421  
422 -**Example**:
387 +[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
423 423  
424 -If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
425 425  
426 -If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
390 +[360,176,30,High,True,2023-08-04 02:53:00],
427 427  
392 +[355,168,30,Low,False,2023-08-04 02:53:29],
428 428  
429 -=== 2.3.5  Sensor Flag ===
394 +[245,211,30,Low,False,2023-08-04 02:54:29],
430 430  
396 +[57,700,30,Low,False,2023-08-04 02:55:29],
431 431  
432 -(((
433 -0x01: Detect Ultrasonic Sensor
434 -)))
398 +[361,164,30,Low,True,2023-08-04 02:56:00],
435 435  
436 -(((
437 -0x00: No Ultrasonic Sensor
438 -)))
400 +[337,184,30,Low,False,2023-08-04 02:56:40],
439 439  
402 +[20,4458,30,Low,False,2023-08-04 02:57:40],
440 440  
441 -=== 2.3.6  Decode payload in The Things Network ===
404 +[362,173,30,Low,False,2023-08-04 02:58:53],
442 442  
443 443  
444 -While using TTN network, you can add the payload format to decode the payload.
407 +**History read from serial port：**
445 445  
446 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654850829385-439.png?rev=1.1||alt="1654850829385-439.png"]]
409 +[[image:image-20230805145056-3.png]]
447 447  
448 -The payload decoder function for TTN V3 is here:
449 449  
450 -(((
451 -DDS20-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
452 -)))
412 +=== 2.3.4 Decode payload in The Things Network ===
453 453  
454 454  
455 -== 2.4  Uplink Interval ==
415 +While using TTN network, you can add the payload format to decode the payload.
456 456  
417 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654592762713-715.png?rev=1.1||alt="1654592762713-715.png"]]
457 457  
458 -The DDS20-LB by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>||anchor="H3.3.1SetTransmitIntervalTime"]]
459 459  
420 +(((
421 +The payload decoder function for TTN is here:
422 +)))
460 460  
461 -== 2.5  ​Show Data in DataCake IoT Server ==
424 +(((
425 +DS20L TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
426 +)))
462 462  
463 463  
429 +== 2.4 ​Show Data in DataCake IoT Server ==
430 +
431 +
464 464  (((
465 465  [[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
466 466  )))
... ... @@ -483,7 +483,7 @@
483 483  
484 484  (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
485 485  
486 -(% style="color:blue" %)**Step 4**(%%)**: Search the DDS20-LB and add DevEUI.**
454 +(% style="color:blue" %)**Step 4**(%%)**: Search the DS20L and add DevEUI.**
487 487  
488 488  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654851029373-510.png?rev=1.1||alt="1654851029373-510.png"]]
489 489  
... ... @@ -493,35 +493,31 @@
493 493  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610165129-11.png?width=1088&height=595&rev=1.1||alt="image-20220610165129-11.png"]]
494 494  
495 495  
464 +== 2.5 Datalog Feature ==
496 496  
497 -== 2.6 Datalog Feature ==
498 498  
467 +Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DS20L will store the reading for future retrieving purposes.
499 499  
500 -Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DDS20-LB will store the reading for future retrieving purposes.
501 501  
470 +=== 2.5.1 Ways to get datalog via LoRaWAN ===
502 502  
503 -=== 2.6.1 Ways to get datalog via LoRaWAN ===
504 504  
473 +Set PNACKMD=1, DS20L will wait for ACK for every uplink, when there is no LoRaWAN network, DS20L will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
505 505  
506 -Set PNACKMD=1, DDS20-LB will wait for ACK for every uplink, when there is no LoRaWAN network,DDS20-LB will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
507 -
508 508  * (((
509 -a) DDS20-LB will do an ACK check for data records sending to make sure every data arrive server.
476 +a) DS20L will do an ACK check for data records sending to make sure every data arrive server.
510 510  )))
511 511  * (((
512 -b) DDS20-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but DDS20-LB won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if DDS20-LB gets a ACK, DDS20-LB will consider there is a network connection and resend all NONE-ACK messages.
479 +b) DS20L will send data in **CONFIRMED Mode** when PNACKMD=1, but DS20L won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if DS20L gets a ACK, DS20L will consider there is a network connection and resend all NONE-ACK messages.
513 513  )))
514 514  
515 -Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
516 516  
517 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220703111700-2.png?width=1119&height=381&rev=1.1||alt="图片-20220703111700-2.png" height="381" width="1119"]]
518 518  
484 +=== 2.5.2 Unix TimeStamp ===
519 519  
520 -=== 2.6.2 Unix TimeStamp ===
521 521  
487 +DS20L uses Unix TimeStamp format based on
522 522  
523 -DDS20-LB uses Unix TimeStamp format based on
524 -
525 525  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-11.png?width=627&height=97&rev=1.1||alt="图片-20220523001219-11.png" height="97" width="627"]]
526 526  
527 527  User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
... ... @@ -534,23 +534,23 @@
534 534  So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
535 535  
536 536  
537 -=== 2.6.3 Set Device Time ===
501 +=== 2.5.3 Set Device Time ===
538 538  
539 539  
540 540  User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
541 541  
542 -Once DDS20-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DDS20-LB. If DDS20-LB fails to get the time from the server, DDS20-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
506 +Once DS20L Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DS20L. If DS20L fails to get the time from the server, DS20L will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
543 543  
544 544  (% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
545 545  
546 546  
547 -=== 2.6.4 Poll sensor value ===
511 +=== 2.5.4 Poll sensor value ===
548 548  
549 549  
550 550  Users can poll sensor values based on timestamps. Below is the downlink command.
551 551  
552 552  (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
553 -|(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
517 +|(% colspan="4" style="background-color:#4f81bd; color:white; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
554 554  |(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
555 555  |(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
556 556  
... ... @@ -567,24 +567,24 @@
567 567  )))
568 568  
569 569  (((
570 -Uplink Internal =5s，means DDS20-LB will send one packet every 5s. range 5~~255s.
534 +Uplink Internal =5s，means DS20L will send one packet every 5s. range 5~~255s.
571 571  )))
572 572  
573 573  
574 -== 2.7 Frequency Plans ==
538 +== 2.6 Frequency Plans ==
575 575  
576 576  
577 -The DDS20-LB uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
541 +The DS20L uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
578 578  
579 579  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
580 580  
581 581  
582 -= 3. Configure DDS20-LB =
546 +3. Configure DS20L
583 583  
584 584  == 3.1 Configure Methods ==
585 585  
586 586  
587 -DDS20-LB supports below configure method:
551 +DS20L supports below configure method:
588 588  
589 589  * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
590 590  
... ... @@ -606,10 +606,10 @@
606 606  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
607 607  
608 608  
609 -== 3.3 Commands special design for DDS20-LB ==
573 +== 3.3 Commands special design for DS20L ==
610 610  
611 611  
612 -These commands only valid for DDS20-LB, as below:
576 +These commands only valid for DS20L, as below:
613 613  
614 614  
615 615  === 3.3.1 Set Transmit Interval Time ===
... ... @@ -624,7 +624,7 @@
624 624  )))
625 625  
626 626  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
627 -|=(% style="width: 156px;background-color:#D9E2F3; color:#0070c0" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3; color:#0070c0" %)**Function**|=(% style="background-color:#D9E2F3; color:#0070c0" %)**Response**
591 +|=(% style="width: 156px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 137px;background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
628 628  |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
629 629  30000
630 630  OK
... ... @@ -652,25 +652,32 @@
652 652  )))
653 653  * (((
654 654  Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
619 +
620 +
621 +
655 655  )))
656 656  
657 657  === 3.3.2 Set Interrupt Mode ===
658 658  
659 659  
660 -Feature, Set Interrupt mode for PA8 of pin.
627 +Feature, Set Interrupt mode for pin of GPIO_EXTI.
661 661  
662 -When AT+INTMOD=0 is set, PA8 is used as a digital input port.
629 +When AT+INTMOD=0 is set, GPIO_EXTI is used as a digital input port.
663 663  
664 664  (% style="color:blue" %)**AT Command: AT+INTMOD**
665 665  
666 666  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
667 -|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**
634 +|=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 197px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Response**
668 668  |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
669 669  0
670 670  OK
671 671  the mode is 0 =Disable Interrupt
672 672  )))
673 -|(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
640 +|(% style="width:154px" %)(((
641 +AT+INTMOD=2
642 +
643 +(default)
644 +)))|(% style="width:196px" %)(((
674 674  Set Transmit Interval
675 675  0. (Disable Interrupt),
676 676  ~1. (Trigger by rising and falling edge)
... ... @@ -688,10 +688,11 @@
688 688  
689 689  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
690 690  
662 +
691 691  = 4. Battery & Power Consumption =
692 692  
693 693  
694 -DDS20-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
666 +DS20L use built-in 2400mAh non-chargeable battery for long-term use up to several years*. See below link for detail information about the battery info and how to replace.
695 695  
696 696  [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
697 697  
... ... @@ -700,7 +700,7 @@
700 700  
701 701  
702 702  (% class="wikigeneratedid" %)
703 -User can change firmware DDS20-LB to:
675 +User can change firmware DS20L to:
704 704  
705 705  * Change Frequency band/ region.
706 706  
... ... @@ -708,7 +708,7 @@
708 708  
709 709  * Fix bugs.
710 710  
711 -Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/ph4uyz0rchflrnw/AADr1f_5Sg30804NItpfOQbla?dl=0]]**
683 +Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/zqv1vt3komgp4tu/AAC33PnXIcWOVl_UXBEAeT_xa?dl=0]]**
712 712  
713 713  Methods to Update Firmware:
714 714  
... ... @@ -718,39 +718,38 @@
718 718  
719 719  = 6. FAQ =
720 720  
721 -== 6.1  What is the frequency plan for DDS20-LB? ==
693 +== 6.1 What is the frequency plan for DS20L? ==
722 722  
723 723  
724 -DDS20-LB use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
696 +DS20L use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
725 725  
726 726  
727 -== 6.2  Can I use DDS20-LB in condensation environment? ==
699 += 7. Trouble Shooting =
728 728  
701 +== 7.1 AT Command input doesn't work ==
729 729  
730 -DDS20-LB is not suitable to be used in condensation environment. Condensation on the DDS20-LB probe will affect the reading and always got 0.
731 731  
704 +In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:blue" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:blue" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
732 732  
733 -= 7.  Trouble Shooting =
734 734  
735 -== 7.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
707 +== 7.2 Significant error between the output distant value of LiDAR and actual distance ==
736 736  
737 737  
738 -It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
710 +(((
711 +(% style="color:blue" %)**Cause ①**(%%)**：**Due to the physical principles of The LiDAR probe, the above phenomenon is likely to occur if the detection object is the material with high reflectivity (such as mirror, smooth floor tile, etc.) or transparent substance. (such as glass and water, etc.)
712 +)))
739 739  
714 +(((
715 +(% style="color:red" %)**Troubleshooting**(%%): Please avoid use of this product under such circumstance in practice.
716 +)))
740 740  
741 -== 7.2  AT Command input doesn't work ==
742 742  
743 -
744 -In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:blue" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:blue" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
745 -
746 -
747 -== 7.3  Why i always see 0x0000 or 0 for the distance value? ==
748 -
749 -
750 750  (((
751 -LDDS20 has a strict [[**installation requirement**>>||anchor="H1.5A0InstallDDS20-LB"]]. Please make sure the installation method exactly follows up with the installation requirement. Otherwise, the reading might be always 0x00.
720 +(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
721 +)))
752 752  
753 -If you have followed the instruction requirement exactly but still see the 0x00 reading issue, please. please double-check the decoder, you can check the raw payload to verify.
723 +(((
724 +(% style="color:red" %)**Troubleshooting**(%%): please use dry dust-free cloth to gently remove the foreign matter.
754 754  )))
755 755  
756 756  
... ... @@ -757,7 +757,7 @@
757 757  = 8. Order Info =
758 758  
759 759  
760 -Part Number: (% style="color:blue" %)**DDS20-LB-XXX**
731 +Part Number: (% style="color:blue" %)**DS20L-XXX**
761 761  
762 762  (% style="color:red" %)**XXX**(%%): **The default frequency band**
763 763  
... ... @@ -782,7 +782,7 @@
782 782  
783 783  (% style="color:#037691" %)**Package Includes**:
784 784  
785 -* DDS20-LB LoRaWAN Ultrasonic Liquid Level Sensor x 1
756 +* DS20L LoRaWAN Smart Distance Detector x 1
786 786  
787 787  (% style="color:#037691" %)**Dimension and weight**:
788 788  
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