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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 79.16
edited by Xiaoling
on 2023/06/13 15:45
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To version 113.8
edited by Xiaoling
on 2023/11/10 10:23
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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  
... ... @@ -19,436 +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  
52 +== 1.3 Specification ==
60 60  
61 61  
62 -== 1.3 Specification ==
55 +(% style="color:#037691" %)**LiDAR Sensor:**
63 63  
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
64 64  
65 -(% style="color:#037691" %)**Common DC Characteristics:**
66 66  
67 -* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
68 -* Operating Temperature: -40 ~~ 85°C
66 +(% style="display:none" %)
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
69 += 2. Configure DS20L to connect to LoRaWAN network =
76 76  
77 -(% style="color:#037691" %)**Battery:**
71 +== 2.1 How it works ==
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
84 84  
85 -(% style="color:#037691" %)**Power Consumption**
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.
86 86  
87 -* Sleep Mode: 5uA @ 3.3v
88 -* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
76 +(% style="display:none" %) (%%)
89 89  
90 -== 1.4 Suitable Container & Liquid ==
78 +== 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
91 91  
92 92  
93 -* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
94 -* Container shape is regular, and surface is smooth.
95 -* Container Thickness:
96 -** Pure metal material.  2~~8mm, best is 3~~5mm
97 -** Pure non metal material: <10 mm
98 -* 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.
99 99  
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.
100 100  
101 -(% style="display:none" %)
85 +[[image:image-20231110091447-3.png||height="383" width="752"]](% style="display:none" %)
102 102  
103 -== 1.5 Install DDS20-LB ==
104 104  
88 +(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DS20L.
105 105  
106 -(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
90 +Each DS20L is shipped with a sticker with the default device EUI as below:
107 107  
108 -DDS20-LB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
92 +[[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
109 109  
110 -[[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"]]
111 111  
95 +You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
112 112  
113 -(((
114 -(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
115 -)))
116 116  
117 -(((
118 -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.
119 -)))
98 +(% style="color:blue" %)**Register the device**
120 120  
121 -[[image:image-20230613143052-5.png]]
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"]]
122 122  
123 123  
124 -No polish needed if the container is shine metal surface without paint or non-metal container.
103 +(% style="color:blue" %)**Add APP EUI and DEV EUI**
125 125  
126 -[[image:image-20230613143125-6.png]]
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"]]
127 127  
128 128  
129 -(((
130 -(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
131 -)))
108 +(% style="color:blue" %)**Add APP EUI in the application**
132 132  
133 -(((
134 -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.
135 -)))
136 136  
137 -(((
138 -It is necessary to put the coupling paste between the sensor and the container, otherwise DDS20-LB won't detect the liquid level.
139 -)))
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"]]
140 140  
141 -(((
142 -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.
143 -)))
144 144  
114 +(% style="color:blue" %)**Add APP KEY**
145 145  
146 -(((
147 -(% style="color:blue" %)**LED Status:**
148 -)))
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"]]
149 149  
150 -* (((
151 -Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
152 -)))
153 153  
154 -* (((
155 -(% 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.
156 -)))
157 -* (((
158 -(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** slowly blinking**(%%): Sensor detects Liquid Level, The installation point is good.
159 -)))
119 +(% style="color:blue" %)**Step 2:**(%%) Activate on DS20L
160 160  
161 -(((
162 -LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
163 -)))
164 164  
122 +Press the button for 5 seconds to activate the DS20L.
165 165  
166 -(((
167 -(% style="color:red" %)**Note :(%%) (% style="color:blue" %)Ultrasonic coupling paste** (%%) is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
168 -)))
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.
169 169  
126 +After join success, it will start to upload messages to TTN and you can see the messages in the panel.
170 170  
171 -(((
172 -(% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
173 -)))
174 174  
175 -(((
176 -Prepare Eproxy AB glue.
177 -)))
129 +== 2.3 ​Uplink Payload ==
178 178  
179 -(((
180 -Put Eproxy AB glue in the sensor and press it hard on the container installation point.
181 -)))
131 +=== 2.3.1 Device Status, FPORT~=5 ===
182 182  
183 -(((
184 -Reset DDS20-LB and see if the BLUE LED is slowly blinking.
185 -)))
186 186  
187 -[[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"]]
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.
188 188  
136 +The Payload format is as below.
189 189  
190 -(((
191 -(% style="color:red" %)**Note 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.
192 -)))
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
193 193  
194 -(((
195 -(% style="color:red" %)**Note 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.
196 -)))
144 +Example parse in TTNv3
197 197  
146 +[[image:image-20230805103904-1.png||height="131" width="711"]]
198 198  
199 -== 1.6 Applications ==
148 +(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x24
200 200  
150 +(% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
201 201  
202 -* Smart liquid control solution.
152 +(% style="color:blue" %)**Frequency Band**:
203 203  
204 -* Smart liquefied gas solution.
154 +0x01: EU868
205 205  
206 -== 1.7 Precautions ==
156 +0x02: US915
207 207  
158 +0x03: IN865
208 208  
209 -* 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.
160 +0x04: AU915
210 210  
211 -* 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.
162 +0x05: KZ865
212 212  
213 -* 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.(% style="display:none" %)
164 +0x06: RU864
214 214  
215 -== 1.8 Sleep mode and working mode ==
166 +0x07: AS923
216 216  
168 +0x08: AS923-1
217 217  
218 -(% 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.
170 +0x09: AS923-2
219 219  
220 -(% 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.
172 +0x0a: AS923-3
221 221  
174 +0x0b: CN470
222 222  
223 -== 1.9 Button & LEDs ==
176 +0x0c: EU433
224 224  
178 +0x0d: KR920
225 225  
226 -[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
180 +0x0e: MA869
227 227  
182 +(% style="color:blue" %)**Sub-Band**:
228 228  
229 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
230 -|=(% 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**
231 -|(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
232 -If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
233 -Meanwhile, BLE module will be active and user can connect via BLE to configure device.
234 -)))
235 -|(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
236 -(% 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.
237 -(% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
238 -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.
239 -)))
240 -|(% 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.
184 +AU915 and US915:value 0x00 ~~ 0x08
241 241  
242 -== 1.10 BLE connection ==
186 +CN470: value 0x0B ~~ 0x0C
243 243  
188 +Other Bands: Always 0x00
244 244  
245 -DDS20-LB support BLE remote configure.
190 +(% style="color:blue" %)**Battery Info**:
246 246  
247 -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:
192 +Check the battery voltage.
248 248  
249 -* Press button to send an uplink
250 -* Press button to active device.
251 -* Device Power on or reset.
194 +Ex1: 0x0B45 = 2885mV
252 252  
253 -If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
196 +Ex2: 0x0B49 = 2889mV
254 254  
255 255  
256 -== 1.11 Pin Definitions ==
199 +=== 2.3.2 Uplink Payload, FPORT~=2 ===
257 257  
258 -[[image:image-20230523174230-1.png]]
259 259  
202 +(((
203 +DS20L will send this uplink **after** Device Status once join the LoRaWAN network successfully. And DS20L will:
260 260  
261 -== 1.12 Mechanical ==
205 +periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
262 262  
207 +Uplink Payload totals 11 bytes.
208 +)))
263 263  
264 -[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
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 +)))
265 265  
222 +[[image:image-20230805104104-2.png||height="136" width="754"]]
266 266  
267 -[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
268 268  
225 +==== (% style="color:blue" %)**Battery Info**(%%) ====
269 269  
270 -[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
271 271  
228 +Check the battery voltage for DS20L.
272 272  
273 -(% style="color:blue" %)**Probe Mechanical:**
230 +Ex1: 0x0B45 = 2885mV
274 274  
275 -[[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"]]
232 +Ex2: 0x0B49 = 2889mV
276 276  
277 277  
278 -[[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"]]
235 +==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
279 279  
280 280  
281 -= 2. Configure DDS20-LB to connect to LoRaWAN network =
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.
282 282  
283 -== 2.1 How it works ==
284 284  
241 +**Example**:
285 285  
286 -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.
243 +If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
287 287  
288 -(% style="display:none" %) (%%)
245 +If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
289 289  
290 -== 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
291 291  
248 +==== (% style="color:blue" %)**Distance**(%%) ====
292 292  
293 -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.
294 294  
295 -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.
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.
296 296  
297 -[[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %)
298 298  
254 +**Example**:
299 299  
300 -(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS20-LB.
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.
301 301  
302 -Each DDS20-LB is shipped with a sticker with the default device EUI as below:
303 303  
304 -[[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
259 +==== (% style="color:blue" %)**Distance signal strength**(%%) ====
305 305  
306 306  
307 -You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
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.
308 308  
309 309  
310 -(% style="color:blue" %)**Register the device**
265 +**Example**:
311 311  
312 -[[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"]]
267 +If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
313 313  
269 +Customers can judge whether they need to adjust the environment based on the signal strength.
314 314  
315 -(% style="color:blue" %)**Add APP EUI and DEV EUI**
316 316  
317 -[[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"]]
272 +**1) When the sensor detects valid data:**
318 318  
274 +[[image:image-20230805155335-1.png||height="145" width="724"]]
319 319  
320 -(% style="color:blue" %)**Add APP EUI in the application**
321 321  
277 +**2) When the sensor detects invalid data:**
322 322  
323 -[[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"]]
279 +[[image:image-20230805155428-2.png||height="139" width="726"]]
324 324  
325 325  
326 -(% style="color:blue" %)**Add APP KEY**
282 +**3) When the sensor is not connected:**
327 327  
328 -[[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"]]
284 +[[image:image-20230805155515-3.png||height="143" width="725"]]
329 329  
330 330  
331 -(% style="color:blue" %)**Step 2:**(%%) Activate on DDS20-LB
287 +==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
332 332  
333 333  
334 -Press the button for 5 seconds to activate the DDS20-LB.
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.
335 335  
336 -(% 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.
292 +Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.8PinDefinitions"]] of GPIO_EXTI .
337 337  
338 -After join success, it will start to upload messages to TTN and you can see the messages in the panel.
294 +**Example:**
339 339  
296 +If byte[0]&0x01=0x00 : Normal uplink packet.
340 340  
341 -== 2.3  ​Uplink Payload ==
298 +If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
342 342  
343 343  
301 +==== (% style="color:blue" %)**LiDAR temp**(%%) ====
302 +
303 +
304 +Characterize the internal temperature value of the sensor.
305 +
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℃.
309 +
310 +
311 +==== (% style="color:blue" %)**Message Type**(%%) ====
312 +
313 +
344 344  (((
345 -DDS20-LB will uplink payload via LoRaWAN with below payload format: 
315 +For a normal uplink payload, the message type is always 0x01.
346 346  )))
347 347  
348 348  (((
349 -Uplink payload includes in total 8 bytes.
319 +Valid Message Type:
350 350  )))
351 351  
352 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
353 -|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
354 -**Size(bytes)**
355 -)))|=(% 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**
356 -|(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
357 -[[Distance>>||anchor="H2.3.2A0Distance"]]
358 -(unit: mm)
359 -)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
360 -[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
361 -)))|[[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
362 362  
363 -[[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"]]
364 364  
365 365  
366 -=== 2.3.1  Battery Info ===
330 +=== 2.3.3 Historical measuring distance, FPORT~=3 ===
367 367  
368 368  
369 -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"]].
370 370  
371 -Ex1: 0x0B45 = 2885mV
335 +The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
372 372  
373 -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
374 374  
347 +**Interrupt flag & Interrupt level:**
375 375  
376 -=== 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 +)))
377 377  
378 -
379 -(((
380 -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.
381 381  )))
382 382  
383 -(((
384 -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:
385 385  
386 -(% style="color:blue" %)**0605(H) = 1541 (D) = 1541 mm.**
387 -)))
363 +**a) DR0:** max is 11 bytes so one entry of data
388 388  
389 -* 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)
390 390  
391 -* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
367 +**c) DR2:** total payload includes 11 entries of data
392 392  
393 -=== 2.3.3  Interrupt Pin ===
369 +**d) DR3:** total payload includes 22 entries of data.
394 394  
371 +If DS20L doesn't have any data in the polling time. It will uplink 11 bytes of 0
395 395  
396 -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.
397 397  
398 -**Example:**
374 +**Downlink:**
399 399  
400 -0x00: Normal uplink packet.
376 +0x31 64 CC 68 0C 64 CC 69 74 05
401 401  
402 -0x01: Interrupt Uplink Packet.
378 +[[image:image-20230805144936-2.png||height="113" width="746"]]
403 403  
380 +**Uplink:**
404 404  
405 -=== 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
406 406  
407 407  
408 -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:**
409 409  
410 -**Example**:
387 +[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
411 411  
412 -If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
413 413  
414 -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],
415 415  
392 +[355,168,30,Low,False,2023-08-04 02:53:29],
416 416  
417 -=== 2.3.5  Sensor Flag ===
394 +[245,211,30,Low,False,2023-08-04 02:54:29],
418 418  
396 +[57,700,30,Low,False,2023-08-04 02:55:29],
419 419  
420 -(((
421 -0x01: Detect Ultrasonic Sensor
422 -)))
398 +[361,164,30,Low,True,2023-08-04 02:56:00],
423 423  
424 -(((
425 -0x00: No Ultrasonic Sensor
426 -)))
400 +[337,184,30,Low,False,2023-08-04 02:56:40],
427 427  
402 +[20,4458,30,Low,False,2023-08-04 02:57:40],
428 428  
429 -=== 2.3.6  Decode payload in The Things Network ===
404 +[362,173,30,Low,False,2023-08-04 02:58:53],
430 430  
431 431  
432 -While using TTN network, you can add the payload format to decode the payload.
407 +**History read from serial port：**
433 433  
434 -[[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]]
435 435  
436 -The payload decoder function for TTN V3 is here:
437 437  
438 -(((
439 -DDS20-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
440 -)))
412 +=== 2.3.4 Decode payload in The Things Network ===
441 441  
442 442  
443 -== 2.4  Uplink Interval ==
415 +While using TTN network, you can add the payload format to decode the payload.
444 444  
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"]]
445 445  
446 -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"]]
447 447  
420 +(((
421 +The payload decoder function for TTN is here:
422 +)))
448 448  
449 -== 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 +)))
450 450  
451 451  
429 +== 2.4 ​Show Data in DataCake IoT Server ==
430 +
431 +
452 452  (((
453 453  [[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:
454 454  )))
... ... @@ -471,7 +471,7 @@
471 471  
472 472  (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
473 473  
474 -(% style="color:blue" %)**Step 4**(%%)**: Search the DDS20-LB and add DevEUI.**
454 +(% style="color:blue" %)**Step 4**(%%)**: Search the DS20L and add DevEUI.**
475 475  
476 476  [[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"]]
477 477  
... ... @@ -481,35 +481,31 @@
481 481  [[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"]]
482 482  
483 483  
464 +== 2.5 Datalog Feature ==
484 484  
485 -== 2.6 Datalog Feature ==
486 486  
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.
487 487  
488 -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.
489 489  
470 +=== 2.5.1 Ways to get datalog via LoRaWAN ===
490 490  
491 -=== 2.6.1 Ways to get datalog via LoRaWAN ===
492 492  
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.
493 493  
494 -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.
495 -
496 496  * (((
497 -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.
498 498  )))
499 499  * (((
500 -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.
501 501  )))
502 502  
503 -Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
504 504  
505 -[[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"]]
506 506  
484 +=== 2.5.2 Unix TimeStamp ===
507 507  
508 -=== 2.6.2 Unix TimeStamp ===
509 509  
487 +DS20L uses Unix TimeStamp format based on
510 510  
511 -DDS20-LB uses Unix TimeStamp format based on
512 -
513 513  [[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"]]
514 514  
515 515  User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
... ... @@ -522,23 +522,23 @@
522 522  So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
523 523  
524 524  
525 -=== 2.6.3 Set Device Time ===
501 +=== 2.5.3 Set Device Time ===
526 526  
527 527  
528 528  User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
529 529  
530 -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).
531 531  
532 532  (% 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.**
533 533  
534 534  
535 -=== 2.6.4 Poll sensor value ===
511 +=== 2.5.4 Poll sensor value ===
536 536  
537 537  
538 538  Users can poll sensor values based on timestamps. Below is the downlink command.
539 539  
540 540  (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
541 -|(% 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)**
542 542  |(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
543 543  |(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
544 544  
... ... @@ -555,24 +555,24 @@
555 555  )))
556 556  
557 557  (((
558 -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.
559 559  )))
560 560  
561 561  
562 -== 2.7 Frequency Plans ==
538 +== 2.6 Frequency Plans ==
563 563  
564 564  
565 -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.
566 566  
567 567  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
568 568  
569 569  
570 -= 3. Configure DDS20-LB =
546 +3. Configure DS20L
571 571  
572 572  == 3.1 Configure Methods ==
573 573  
574 574  
575 -DDS20-LB supports below configure method:
551 +DS20L supports below configure method:
576 576  
577 577  * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
578 578  
... ... @@ -594,10 +594,10 @@
594 594  [[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/]]
595 595  
596 596  
597 -== 3.3 Commands special design for DDS20-LB ==
573 +== 3.3 Commands special design for DS20L ==
598 598  
599 599  
600 -These commands only valid for DDS20-LB, as below:
576 +These commands only valid for DS20L, as below:
601 601  
602 602  
603 603  === 3.3.1 Set Transmit Interval Time ===
... ... @@ -612,7 +612,7 @@
612 612  )))
613 613  
614 614  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
615 -|=(% 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**
616 616  |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
617 617  30000
618 618  OK
... ... @@ -640,25 +640,32 @@
640 640  )))
641 641  * (((
642 642  Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
619 +
620 +
621 +
643 643  )))
644 644  
645 645  === 3.3.2 Set Interrupt Mode ===
646 646  
647 647  
648 -Feature, Set Interrupt mode for PA8 of pin.
627 +Feature, Set Interrupt mode for pin of GPIO_EXTI.
649 649  
650 -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.
651 651  
652 652  (% style="color:blue" %)**AT Command: AT+INTMOD**
653 653  
654 654  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
655 -|=(% 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**
656 656  |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
657 657  0
658 658  OK
659 659  the mode is 0 =Disable Interrupt
660 660  )))
661 -|(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
640 +|(% style="width:154px" %)(((
641 +AT+INTMOD=2
642 +
643 +(default)
644 +)))|(% style="width:196px" %)(((
662 662  Set Transmit Interval
663 663  0. (Disable Interrupt),
664 664  ~1. (Trigger by rising and falling edge)
... ... @@ -676,10 +676,11 @@
676 676  
677 677  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
678 678  
662 +
679 679  = 4. Battery & Power Consumption =
680 680  
681 681  
682 -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.
683 683  
684 684  [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
685 685  
... ... @@ -688,7 +688,7 @@
688 688  
689 689  
690 690  (% class="wikigeneratedid" %)
691 -User can change firmware DDS20-LB to:
675 +User can change firmware DS20L to:
692 692  
693 693  * Change Frequency band/ region.
694 694  
... ... @@ -696,7 +696,7 @@
696 696  
697 697  * Fix bugs.
698 698  
699 -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]]**
700 700  
701 701  Methods to Update Firmware:
702 702  
... ... @@ -704,42 +704,40 @@
704 704  
705 705  * 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]]**.
706 706  
707 -
708 708  = 6. FAQ =
709 709  
710 -== 6.1  What is the frequency plan for DDS20-LB? ==
693 +== 6.1 What is the frequency plan for DS20L? ==
711 711  
712 712  
713 -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"]]
714 714  
715 715  
716 -== 6.2  Can I use DDS20-LB in condensation environment? ==
699 += 7. Trouble Shooting =
717 717  
701 +== 7.1 AT Command input doesn't work ==
718 718  
719 -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.
720 720  
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.
721 721  
722 -= 7.  Trouble Shooting =
723 723  
724 -== 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 ==
725 725  
726 726  
727 -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 +)))
728 728  
714 +(((
715 +(% style="color:red" %)**Troubleshooting**(%%): Please avoid use of this product under such circumstance in practice.
716 +)))
729 729  
730 -== 7.2  AT Command input doesn't work ==
731 731  
732 -
733 -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.
734 -
735 -
736 -== 7.3  Why i always see 0x0000 or 0 for the distance value? ==
737 -
738 -
739 739  (((
740 -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 +)))
741 741  
742 -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.
743 743  )))
744 744  
745 745  
... ... @@ -746,7 +746,7 @@
746 746  = 8. Order Info =
747 747  
748 748  
749 -Part Number: (% style="color:blue" %)**DDS20-LB-XXX**
731 +Part Number: (% style="color:blue" %)**DS20L-XXX**
750 750  
751 751  (% style="color:red" %)**XXX**(%%): **The default frequency band**
752 752  
... ... @@ -771,7 +771,7 @@
771 771  
772 772  (% style="color:#037691" %)**Package Includes**:
773 773  
774 -* DDS20-LB LoRaWAN Ultrasonic Liquid Level Sensor x 1
756 +* DS20L LoRaWAN Smart Distance Detector x 1
775 775  
776 776  (% style="color:#037691" %)**Dimension and weight**:
777 777  
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