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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 116.2
edited by Xiaoling
on 2023/11/13 10:37
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To version 79.16
edited by Xiaoling
on 2023/06/13 15:45
Change comment: There is no comment for this version

Summary

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Title
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1 -DS20L -- LoRaWAN Smart Distance Detector User Manual
1 +DDS20-LB -- LoRaWAN Ultrasonic Liquid Level Sensor User Manual
Content
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1 1  (% style="text-align:center" %)
2 -[[image:image-20231110085342-2.png||height="481" width="481"]]
2 +[[image:image-20230613133716-2.png||height="717" width="717"]]
3 3  
4 4  
5 5  
... ... @@ -19,429 +19,437 @@
19 19  
20 20  = 1. Introduction =
21 21  
22 -== 1.1 What is LoRaWAN Smart Distance Detector ==
22 +== 1.1 What is LoRaWAN Ultrasonic liquid level Sensor ==
23 23  
24 24  
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. DS20L can measure range between 3cm ~~ 200cm.
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.
26 26  
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.
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. 
29 29  
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.**
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.
31 31  
32 -DS20L is fully compatible with (% style="color:blue" %)**LoRaWAN v1.0.3 Class A protocol**(%%), it can work with a standard LoRaWAN gateway.
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.
33 33  
33 +DDS20-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
34 34  
35 -[[image:image-20231110102635-5.png||height="402" width="807"]]
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 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.
37 37  
39 +[[image:image-20230613140115-3.png||height="453" width="800"]]
40 +
41 +
38 38  == 1.2 ​Features ==
39 39  
40 40  
41 -* LoRaWAN Class A protocol
42 -* LiDAR distance detector, range 3 ~~ 200cm
43 -* Periodically detect or continuously detect mode
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
44 44  * AT Commands to change parameters
45 -* Remotely configure parameters via LoRaWAN Downlink
46 -* Alarm & Counting mode
47 -* Firmware upgradable via program port or LoRa protocol
48 -* Built-in 2400mAh battery or power by external power source
56 +* Downlink to change configure
57 +* IP66 Waterproof Enclosure
58 +* 8500mAh Battery for long term use
49 49  
50 -== 1.3 Specification ==
51 51  
52 52  
53 -(% style="color:#037691" %)**LiDAR Sensor:**
62 +== 1.3 Specification ==
54 54  
55 -* Operation Temperature: -40 ~~ 80 °C
56 -* Operation Humidity: 0~~99.9%RH (no Dew)
57 -* Storage Temperature: -10 ~~ 45°C
58 -* Measure Range: 3cm~~200cm @ 90% reflectivity
59 -* Accuracy: ±2cm @ (3cm~~100cm); ±5% @ (100~~200cm)
60 -* ToF FoV: ±9°, Total 18°
61 -* Light source: VCSEL
62 62  
63 -(% style="display:none" %)
65 +(% style="color:#037691" %)**Common DC Characteristics:**
64 64  
67 +* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
68 +* Operating Temperature: -40 ~~ 85°C
65 65  
66 -== 1.4 Power Consumption ==
70 +(% style="color:#037691" %)**LoRa Spec:**
67 67  
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
68 68  
69 -(% style="color:#037691" %)**Battery Power Mode:**
77 +(% style="color:#037691" %)**Battery:**
70 70  
71 -* Idle: 0.003 mA @ 3.3v
72 -* Max : 360 mA
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
73 73  
74 -(% style="color:#037691" %)**Continuously mode**:
85 +(% style="color:#037691" %)**Power Consumption**
75 75  
76 -* Idle: 21 mA @ 3.3v
77 -* Max : 360 mA
87 +* Sleep Mode: 5uA @ 3.3v
88 +* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
78 78  
90 +== 1.4 Suitable Container & Liquid ==
79 79  
80 80  
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 81  
82 -= 2. Configure DS20L to connect to LoRaWAN network =
83 83  
84 -== 2.1 How it works ==
101 +(% style="display:none" %)
85 85  
103 +== 1.5 Install DDS20-LB ==
86 86  
87 -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.
88 88  
89 -(% style="display:none" %) (%%)
106 +(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
90 90  
91 -== 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
108 +DDS20-LB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
92 92  
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"]]
93 93  
94 -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.
95 95  
96 -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.(% style="display:none" %)
113 +(((
114 +(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
115 +)))
97 97  
98 -[[image:image-20231110102635-5.png||height="402" width="807"]](% style="display:none" %)
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 +)))
99 99  
100 -(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DS20L.
121 +[[image:image-20230613143052-5.png]]
101 101  
102 -Each DS20L is shipped with a sticker with the default device EUI as below:
103 103  
104 -[[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
124 +No polish needed if the container is shine metal surface without paint or non-metal container.
105 105  
126 +[[image:image-20230613143125-6.png]]
106 106  
107 -You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
108 108  
129 +(((
130 +(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
131 +)))
109 109  
110 -(% style="color:blue" %)**Register the device**
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 +)))
111 111  
112 -[[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"]]
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 +)))
113 113  
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 +)))
114 114  
115 -(% style="color:blue" %)**Add APP EUI and DEV EUI**
116 116  
117 -[[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"]]
146 +(((
147 +(% style="color:blue" %)**LED Status:**
148 +)))
118 118  
150 +* (((
151 +Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
152 +)))
119 119  
120 -(% style="color:blue" %)**Add APP EUI in the application**
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 +)))
121 121  
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 +)))
122 122  
123 -[[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"]]
124 124  
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 +)))
125 125  
126 -(% style="color:blue" %)**Add APP KEY**
127 127  
128 -[[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"]]
171 +(((
172 +(% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
173 +)))
129 129  
175 +(((
176 +Prepare Eproxy AB glue.
177 +)))
130 130  
131 -(% style="color:blue" %)**Step 2:**(%%) Activate on DS20L
179 +(((
180 +Put Eproxy AB glue in the sensor and press it hard on the container installation point.
181 +)))
132 132  
183 +(((
184 +Reset DDS20-LB and see if the BLUE LED is slowly blinking.
185 +)))
133 133  
134 -Press the button for 5 seconds to activate the DS20L.
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"]]
135 135  
136 -(% 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.
137 137  
138 -After join success, it will start to upload messages to TTN and you can see the messages in the panel.
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 +)))
139 139  
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 +)))
140 140  
141 -== 2.3 ​Uplink Payload ==
142 142  
143 -=== 2.3.1 Device Status, FPORT~=5 ===
199 +== 1.6 Applications ==
144 144  
145 145  
146 -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.
202 +* Smart liquid control solution.
147 147  
148 -The Payload format is as below.
204 +* Smart liquefied gas solution.
149 149  
150 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
151 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
152 -**Size(bytes)**
153 -)))|=(% 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**
154 -|(% 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
206 +== 1.7 Precautions ==
155 155  
156 -Example parse in TTNv3
157 157  
158 -[[image:image-20230805103904-1.png||height="131" width="711"]]
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.
159 159  
160 -(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x24
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.
161 161  
162 -(% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
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" %)
163 163  
164 -(% style="color:blue" %)**Frequency Band**:
215 +== 1.8 Sleep mode and working mode ==
165 165  
166 -0x01: EU868
167 167  
168 -0x02: US915
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.
169 169  
170 -0x03: IN865
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.
171 171  
172 -0x04: AU915
173 173  
174 -0x05: KZ865
223 +== 1.9 Button & LEDs ==
175 175  
176 -0x06: RU864
177 177  
178 -0x07: AS923
226 +[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
179 179  
180 -0x08: AS923-1
181 181  
182 -0x09: AS923-2
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.
183 183  
184 -0x0a: AS923-3
242 +== 1.10 BLE connection ==
185 185  
186 -0x0b: CN470
187 187  
188 -0x0c: EU433
245 +DDS20-LB support BLE remote configure.
189 189  
190 -0x0d: KR920
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:
191 191  
192 -0x0e: MA869
249 +* Press button to send an uplink
250 +* Press button to active device.
251 +* Device Power on or reset.
193 193  
194 -(% style="color:blue" %)**Sub-Band**:
253 +If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
195 195  
196 -AU915 and US915:value 0x00 ~~ 0x08
197 197  
198 -CN470: value 0x0B ~~ 0x0C
256 +== 1.11 Pin Definitions ==
199 199  
200 -Other Bands: Always 0x00
258 +[[image:image-20230523174230-1.png]]
201 201  
202 -(% style="color:blue" %)**Battery Info**:
203 203  
204 -Check the battery voltage.
261 +== 1.12 Mechanical ==
205 205  
206 -Ex1: 0x0B45 = 2885mV
207 207  
208 -Ex2: 0x0B49 = 2889mV
264 +[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
209 209  
210 210  
211 -=== 2.3.2 Uplink Payload, FPORT~=2 ===
267 +[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
212 212  
213 213  
214 -(((
215 -DS20L will send this uplink **after** Device Status once join the LoRaWAN network successfully. And DS20L will:
270 +[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
216 216  
217 -periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
218 218  
219 -Uplink Payload totals 11 bytes.
220 -)))
273 +(% style="color:blue" %)**Probe Mechanical:**
221 221  
222 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
223 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
224 -**Size(bytes)**
225 -)))|=(% 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**
226 -|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((
227 -[[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]
228 -)))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((
229 -[[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]
230 -)))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((
231 -[[Message Type>>||anchor="HMessageType"]]
232 -)))
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"]]
233 233  
234 -[[image:image-20230805104104-2.png||height="136" width="754"]]
235 235  
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"]]
236 236  
237 -==== (% style="color:blue" %)**Battery Info**(%%) ====
238 238  
281 += 2. Configure DDS20-LB to connect to LoRaWAN network =
239 239  
240 -Check the battery voltage for DS20L.
283 +== 2.1 How it works ==
241 241  
242 -Ex1: 0x0B45 = 2885mV
243 243  
244 -Ex2: 0x0B49 = 2889mV
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.
245 245  
288 +(% style="display:none" %) (%%)
246 246  
247 -==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
290 +== 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
248 248  
249 249  
250 -This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
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.
251 251  
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.
252 252  
253 -**Example**:
297 +[[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %)
254 254  
255 -If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
256 256  
257 -If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
300 +(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS20-LB.
258 258  
302 +Each DDS20-LB is shipped with a sticker with the default device EUI as below:
259 259  
260 -==== (% style="color:blue" %)**Distance**(%%) ====
304 +[[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
261 261  
262 262  
263 -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.
307 +You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
264 264  
265 265  
266 -**Example**:
310 +(% style="color:blue" %)**Register the device**
267 267  
268 -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.
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"]]
269 269  
270 270  
271 -==== (% style="color:blue" %)**Distance signal strength**(%%) ====
315 +(% style="color:blue" %)**Add APP EUI and DEV EUI**
272 272  
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"]]
273 273  
274 -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.
275 275  
320 +(% style="color:blue" %)**Add APP EUI in the application**
276 276  
277 -**Example**:
278 278  
279 -If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
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"]]
280 280  
281 -Customers can judge whether they need to adjust the environment based on the signal strength.
282 282  
326 +(% style="color:blue" %)**Add APP KEY**
283 283  
284 -**1) When the sensor detects valid data:**
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"]]
285 285  
286 -[[image:image-20230805155335-1.png||height="145" width="724"]]
287 287  
331 +(% style="color:blue" %)**Step 2:**(%%) Activate on DDS20-LB
288 288  
289 -**2) When the sensor detects invalid data:**
290 290  
291 -[[image:image-20230805155428-2.png||height="139" width="726"]]
334 +Press the button for 5 seconds to activate the DDS20-LB.
292 292  
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.
293 293  
294 -**3) When the sensor is not connected:**
338 +After join success, it will start to upload messages to TTN and you can see the messages in the panel.
295 295  
296 -[[image:image-20230805155515-3.png||height="143" width="725"]]
297 297  
341 +== 2.3  ​Uplink Payload ==
298 298  
299 -==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
300 300  
344 +(((
345 +DDS20-LB will uplink payload via LoRaWAN with below payload format: 
346 +)))
301 301  
302 -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.
348 +(((
349 +Uplink payload includes in total 8 bytes.
350 +)))
303 303  
304 -Note: The Internet Pin is a separate pin in the screw terminal. See pin mapping of GPIO_EXTI .
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"]]
305 305  
306 -**Example:**
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"]]
307 307  
308 -If byte[0]&0x01=0x00 : Normal uplink packet.
309 309  
310 -If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
366 +=== 2.3.1  Battery Info ===
311 311  
312 312  
313 -==== (% style="color:blue" %)**LiDAR temp**(%%) ====
369 +Check the battery voltage for DDS20-LB.
314 314  
371 +Ex1: 0x0B45 = 2885mV
315 315  
316 -Characterize the internal temperature value of the sensor.
373 +Ex2: 0x0B49 = 2889mV
317 317  
318 -**Example: **
319 -If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
320 -If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
321 321  
376 +=== 2.3.2  Distance ===
322 322  
323 -==== (% style="color:blue" %)**Message Type**(%%) ====
324 324  
325 -
326 326  (((
327 -For a normal uplink payload, the message type is always 0x01.
380 +Get the distance. Flat object range 20mm - 2000mm.
328 328  )))
329 329  
330 330  (((
331 -Valid Message Type:
332 -)))
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" %)** **
333 333  
334 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
335 -|=(% 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**
336 -|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload
337 -|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload
338 -
339 -[[image:image-20230805150315-4.png||height="233" width="723"]]
340 -
341 -
342 -=== 2.3.3 Historical measuring distance, FPORT~=3 ===
343 -
344 -
345 -DS20L stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
346 -
347 -The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
348 -
349 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
350 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
351 -**Size(bytes)**
352 -)))|=(% 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
353 -|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)Interrupt flag & Interrupt_level|(% style="width:62.5px" %)(((
354 -Reserve(0xFF)
355 -)))|Distance|Distance signal strength|(% style="width:88px" %)(((
356 -LiDAR temp
357 -)))|(% style="width:85px" %)Unix TimeStamp
358 -
359 -**Interrupt flag & Interrupt level:**
360 -
361 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
362 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
363 -**Size(bit)**
364 -)))|=(% 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**
365 -|(% 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" %)(((
366 -Interrupt flag
386 +(% style="color:blue" %)**0605(H) = 1541 (D) = 1541 mm.**
367 367  )))
368 368  
369 -* (((
370 -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.
371 -)))
389 +* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
372 372  
373 -For example, in the US915 band, the max payload for different DR is:
391 +* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
374 374  
375 -**a) DR0:** max is 11 bytes so one entry of data
393 +=== 2.3.3  Interrupt Pin ===
376 376  
377 -**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
378 378  
379 -**c) DR2:** total payload includes 11 entries of data
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.
380 380  
381 -**d) DR3:** total payload includes 22 entries of data.
398 +**Example:**
382 382  
383 -If DS20L doesn't have any data in the polling time. It will uplink 11 bytes of 0
400 +0x00: Normal uplink packet.
384 384  
402 +0x01: Interrupt Uplink Packet.
385 385  
386 -**Downlink:**
387 387  
388 -0x31 64 CC 68 0C 64 CC 69 74 05
405 +=== 2.3.4  DS18B20 Temperature sensor ===
389 389  
390 -[[image:image-20230805144936-2.png||height="113" width="746"]]
391 391  
392 -**Uplink:**
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.
393 393  
394 -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
410 +**Example**:
395 395  
412 +If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
396 396  
397 -**Parsed Value:**
414 +If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
398 398  
399 -[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
400 400  
417 +=== 2.3.5  Sensor Flag ===
401 401  
402 -[360,176,30,High,True,2023-08-04 02:53:00],
403 403  
404 -[355,168,30,Low,False,2023-08-04 02:53:29],
420 +(((
421 +0x01: Detect Ultrasonic Sensor
422 +)))
405 405  
406 -[245,211,30,Low,False,2023-08-04 02:54:29],
424 +(((
425 +0x00: No Ultrasonic Sensor
426 +)))
407 407  
408 -[57,700,30,Low,False,2023-08-04 02:55:29],
409 409  
410 -[361,164,30,Low,True,2023-08-04 02:56:00],
429 +=== 2.3.6  Decode payload in The Things Network ===
411 411  
412 -[337,184,30,Low,False,2023-08-04 02:56:40],
413 413  
414 -[20,4458,30,Low,False,2023-08-04 02:57:40],
432 +While using TTN network, you can add the payload format to decode the payload.
415 415  
416 -[362,173,30,Low,False,2023-08-04 02:58:53],
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"]]
417 417  
436 +The payload decoder function for TTN V3 is here:
418 418  
419 -**History read from serial port：**
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 +)))
420 420  
421 -[[image:image-20230805145056-3.png]]
422 422  
443 +== 2.4  Uplink Interval ==
423 423  
424 -=== 2.3.4 Decode payload in The Things Network ===
425 425  
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"]]
426 426  
427 -While using TTN network, you can add the payload format to decode the payload.
428 428  
429 -[[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"]]
449 +== 2.5  ​Show Data in DataCake IoT Server ==
430 430  
431 431  
432 432  (((
433 -The payload decoder function for TTN is here:
434 -)))
435 -
436 -(((
437 -DS20L TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
438 -)))
439 -
440 -
441 -== 2.4 ​Show Data in DataCake IoT Server ==
442 -
443 -
444 -(((
445 445  [[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:
446 446  )))
447 447  
... ... @@ -463,7 +463,7 @@
463 463  
464 464  (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
465 465  
466 -(% style="color:blue" %)**Step 4**(%%)**: Search the DS20L and add DevEUI.**
474 +(% style="color:blue" %)**Step 4**(%%)**: Search the DDS20-LB and add DevEUI.**
467 467  
468 468  [[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"]]
469 469  
... ... @@ -473,29 +473,35 @@
473 473  [[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"]]
474 474  
475 475  
476 -== 2.5 Datalog Feature ==
477 477  
485 +== 2.6 Datalog Feature ==
478 478  
479 -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.
480 480  
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.
481 481  
482 -=== 2.5.1 Ways to get datalog via LoRaWAN ===
483 483  
491 +=== 2.6.1 Ways to get datalog via LoRaWAN ===
484 484  
485 -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.
486 486  
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 +
487 487  * (((
488 -a) DS20L will do an ACK check for data records sending to make sure every data arrive server.
497 +a) DDS20-LB will do an ACK check for data records sending to make sure every data arrive server.
489 489  )))
490 490  * (((
491 -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.
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.
492 492  )))
493 493  
494 -=== 2.5.2 Unix TimeStamp ===
503 +Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
495 495  
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"]]
496 496  
497 -DS20L uses Unix TimeStamp format based on
498 498  
508 +=== 2.6.2 Unix TimeStamp ===
509 +
510 +
511 +DDS20-LB uses Unix TimeStamp format based on
512 +
499 499  [[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"]]
500 500  
501 501  User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
... ... @@ -508,23 +508,23 @@
508 508  So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
509 509  
510 510  
511 -=== 2.5.3 Set Device Time ===
525 +=== 2.6.3 Set Device Time ===
512 512  
513 513  
514 514  User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
515 515  
516 -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).
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).
517 517  
518 518  (% 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.**
519 519  
520 520  
521 -=== 2.5.4 Poll sensor value ===
535 +=== 2.6.4 Poll sensor value ===
522 522  
523 523  
524 524  Users can poll sensor values based on timestamps. Below is the downlink command.
525 525  
526 526  (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
527 -|(% colspan="4" style="background-color:#4f81bd; color:white; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
541 +|(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
528 528  |(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
529 529  |(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
530 530  
... ... @@ -541,24 +541,24 @@
541 541  )))
542 542  
543 543  (((
544 -Uplink Internal =5s，means DS20L will send one packet every 5s. range 5~~255s.
558 +Uplink Internal =5s，means DDS20-LB will send one packet every 5s. range 5~~255s.
545 545  )))
546 546  
547 547  
548 -== 2.6 Frequency Plans ==
562 +== 2.7 Frequency Plans ==
549 549  
550 550  
551 -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.
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.
552 552  
553 553  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
554 554  
555 555  
556 -3. Configure DS20L
570 += 3. Configure DDS20-LB =
557 557  
558 558  == 3.1 Configure Methods ==
559 559  
560 560  
561 -DS20L supports below configure method:
575 +DDS20-LB supports below configure method:
562 562  
563 563  * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
564 564  
... ... @@ -580,10 +580,10 @@
580 580  [[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/]]
581 581  
582 582  
583 -== 3.3 Commands special design for DS20L ==
597 +== 3.3 Commands special design for DDS20-LB ==
584 584  
585 585  
586 -These commands only valid for DS20L, as below:
600 +These commands only valid for DDS20-LB, as below:
587 587  
588 588  
589 589  === 3.3.1 Set Transmit Interval Time ===
... ... @@ -598,7 +598,7 @@
598 598  )))
599 599  
600 600  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
601 -|=(% 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**
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**
602 602  |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
603 603  30000
604 604  OK
... ... @@ -626,32 +626,25 @@
626 626  )))
627 627  * (((
628 628  Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
629 -
630 -
631 -
632 632  )))
633 633  
634 634  === 3.3.2 Set Interrupt Mode ===
635 635  
636 636  
637 -Feature, Set Interrupt mode for pin of GPIO_EXTI.
648 +Feature, Set Interrupt mode for PA8 of pin.
638 638  
639 -When AT+INTMOD=0 is set, GPIO_EXTI is used as a digital input port.
650 +When AT+INTMOD=0 is set, PA8 is used as a digital input port.
640 640  
641 641  (% style="color:blue" %)**AT Command: AT+INTMOD**
642 642  
643 643  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
644 -|=(% 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**
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**
645 645  |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
646 646  0
647 647  OK
648 648  the mode is 0 =Disable Interrupt
649 649  )))
650 -|(% style="width:154px" %)(((
651 -AT+INTMOD=2
652 -
653 -(default)
654 -)))|(% style="width:196px" %)(((
661 +|(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
655 655  Set Transmit Interval
656 656  0. (Disable Interrupt),
657 657  ~1. (Trigger by rising and falling edge)
... ... @@ -672,7 +672,7 @@
672 672  = 4. Battery & Power Consumption =
673 673  
674 674  
675 -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.
682 +DDS20-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
676 676  
677 677  [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
678 678  
... ... @@ -681,7 +681,7 @@
681 681  
682 682  
683 683  (% class="wikigeneratedid" %)
684 -User can change firmware DS20L to:
691 +User can change firmware DDS20-LB to:
685 685  
686 686  * Change Frequency band/ region.
687 687  
... ... @@ -689,7 +689,7 @@
689 689  
690 690  * Fix bugs.
691 691  
692 -Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/zqv1vt3komgp4tu/AAC33PnXIcWOVl_UXBEAeT_xa?dl=0]]**
699 +Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/ph4uyz0rchflrnw/AADr1f_5Sg30804NItpfOQbla?dl=0]]**
693 693  
694 694  Methods to Update Firmware:
695 695  
... ... @@ -697,40 +697,42 @@
697 697  
698 698  * 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]]**.
699 699  
707 +
700 700  = 6. FAQ =
701 701  
702 -== 6.1 What is the frequency plan for DS20L? ==
710 +== 6.1  What is the frequency plan for DDS20-LB? ==
703 703  
704 704  
705 -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"]]
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"]]
706 706  
707 707  
708 -= 7. Trouble Shooting =
716 +== 6.2  Can I use DDS20-LB in condensation environment? ==
709 709  
710 -== 7.1 AT Command input doesn't work ==
711 711  
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.
712 712  
713 -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.
714 714  
722 += 7.  Trouble Shooting =
715 715  
716 -== 7.2 Significant error between the output distant value of LiDAR and actual distance ==
724 +== 7.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
717 717  
718 718  
719 -(((
720 -(% 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.)
721 -)))
727 +It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
722 722  
723 -(((
724 -(% style="color:red" %)**Troubleshooting**(%%): Please avoid use of this product under such circumstance in practice.
725 -)))
726 726  
730 +== 7.2  AT Command input doesn't work ==
727 727  
728 -(((
729 -(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
730 -)))
731 731  
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 +
732 732  (((
733 -(% style="color:red" %)**Troubleshooting**(%%): please use dry dust-free cloth to gently remove the foreign matter.
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.
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.
734 734  )))
735 735  
736 736  
... ... @@ -737,7 +737,7 @@
737 737  = 8. Order Info =
738 738  
739 739  
740 -Part Number: (% style="color:blue" %)**DS20L-XXX**
749 +Part Number: (% style="color:blue" %)**DDS20-LB-XXX**
741 741  
742 742  (% style="color:red" %)**XXX**(%%): **The default frequency band**
743 743  
... ... @@ -762,7 +762,7 @@
762 762  
763 763  (% style="color:#037691" %)**Package Includes**:
764 764  
765 -* DS20L LoRaWAN Smart Distance Detector x 1
774 +* DDS20-LB LoRaWAN Ultrasonic Liquid Level Sensor x 1
766 766  
767 767  (% style="color:#037691" %)**Dimension and weight**:
768 768  
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