Changes for page DS20L -- LoRaWAN Smart Distance Detector User Manual 01

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Title

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1		-DS20L -- LoRaWAN Smart Distance Detector User Manual
	1	+LDS12-LB -- LoRaWAN LiDAR ToF Distance 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-20230614153353-1.png]]
3	3
4	4
5	5
...	...	@@ -7,7 +7,6 @@
7	7
8	8
9	9
10		-
11	11	**Table of Contents：**
12	12
13	13	{{toc/}}
...	...	@@ -19,36 +19,45 @@
19	19
20	20	= 1. Introduction =
21	21
22		-== 1.1 What is LoRaWAN Smart Distance Detector ==
	21	+== 1.1 What is LoRaWAN LiDAR ToF Distance 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.
	24	+The Dragino LDS12-LB is a (% style="color:blue" %)**LoRaWAN LiDAR ToF (Time of Flight) Distance Sensor**(%%) for Internet of Things solution. It is capable to measure the distance to an object as close as 10 centimeters (+/- 5cm up to 6m) and as far as 12 meters (+/-1% starting at 6m)!. The LiDAR probe uses laser induction technology for distance measurement.
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.
	26	+The LDS12-LB can be applied to scenarios such as horizontal distance measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, etc.
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.**
	28	+It detects the distance between the measured object and the sensor, and uploads the value via wireless to LoRaWAN IoT Server.
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.
	30	+The LoRa wireless technology used in LDS12-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
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.
	32	+LDS12-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
35	35
36		-[[image:image-20231110091506-4.png||height="391" width="768"]]
	34	+LDS12-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
37	37
	36	+Each LDS12-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
	38	+[[image:image-20230613140115-3.png||height="453" width="800"]]
	39	+
	40	+
39	39	== 1.2 ​Features ==
40	40
41	41
42		-* LoRaWAN Class A protocol
43		-* LiDAR distance detector, range 3 ~~ 200cm
44		-* Periodically detect or continuously detect mode
	44	+* LoRaWAN 1.0.3 Class A
	45	+* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
	46	+* Ultra-low power consumption
	47	+* Liquid Level Measurement by Ultrasonic technology
	48	+* Measure through container, No need to contact Liquid
	49	+* Valid level range 20mm - 2000mm
	50	+* Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
	51	+* Cable Length : 25cm
	52	+* Support Bluetooth v5.1 and LoRaWAN remote configure
	53	+* Support wireless OTA update firmware
45	45	* AT Commands to change parameters
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
	55	+* Downlink to change configure
	56	+* IP66 Waterproof Enclosure
	57	+* 8500mAh Battery for long term use
51	51
	59	+
52	52	== 1.3 Specification ==
53	53
54	54
...	...	@@ -57,13 +57,6 @@
57	57	* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
58	58	* Operating Temperature: -40 ~~ 85°C
59	59
60		-(% style="color:#037691" %)**Probe Specification:**
61		-
62		-* Measure Range: 3cm~~200cm @ 90% reflectivity
63		-* Accuracy: ±2cm @ (3cm~~100cm); ±5% @ (100~~200cm)
64		-* ToF FoV: ±9°, Total 18°
65		-* Light source: VCSEL
66		-
67	67	(% style="color:#037691" %)**LoRa Spec:**
68	68
69	69	* Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
...	...	@@ -84,447 +84,377 @@
84	84	* Sleep Mode: 5uA @ 3.3v
85	85	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
86	86
87		-== 1.4 Applications ==
88	88
	89	+== 1.4 Suitable Container & Liquid ==
89	89
90		-* Horizontal distance measurement
91		-* Parking management system
92		-* Object proximity and presence detection
93		-* Intelligent trash can management system
94		-* Robot obstacle avoidance
95		-* Automatic control
96		-* Sewer
97	97
98		-(% style="display:none" %)
	92	+* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
	93	+* Container shape is regular, and surface is smooth.
	94	+* Container Thickness:
	95	+** Pure metal material.  2~~8mm, best is 3~~5mm
	96	+** Pure non metal material: <10 mm
	97	+* Pure liquid without irregular deposition.
99	99
100		-== 1.5 Sleep mode and working mode ==
101	101
	100	+(% style="display:none" %)
102	102
103		-(% 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.
	102	+== 1.5 Install DDS20-LB ==
104	104
105		-(% 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.
106	106
	105	+(% style="color:blue" %)**Step 1**(%%):  ** Choose the installation point.**
107	107
108		-== 1.6 Button & LEDs ==
	107	+DDS20-LB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
109	109
	109	+[[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"]]
110	110
111		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
112	112
	112	+(((
	113	+(% style="color:blue" %)**Step 2**(%%):  **Polish the installation point.**
	114	+)))
113	113
114		-(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
115		-|=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 225px;background-color:#4F81BD;color:white" %)**Action**
116		-|(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
117		-If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
118		-Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	116	+(((
	117	+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	119	)))
120		-|(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
121		-(% 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.
122		-(% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
123		-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.
124		-)))
125		-|(% 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.
126	126
127		-== 1.7 BLE connection ==
	120	+[[image:image-20230613143052-5.png]]
128	128
129	129
130		-LDS12-LB support BLE remote configure.
	123	+No polish needed if the container is shine metal surface without paint or non-metal container.
131	131
132		-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:
	125	+[[image:image-20230613143125-6.png]]
133	133
134		-* Press button to send an uplink
135		-* Press button to active device.
136		-* Device Power on or reset.
137	137
138		-If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	128	+(((
	129	+(% style="color:blue" %)**Step3:   **(%%)**Test the installation point.**
	130	+)))
139	139
	132	+(((
	133	+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.
	134	+)))
140	140
141		-== 1.8 Pin Definitions ==
	136	+(((
	137	+It is necessary to put the coupling paste between the sensor and the container, otherwise DDS20-LB won't detect the liquid level.
	138	+)))
142	142
	140	+(((
	141	+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.
	142	+)))
143	143
144		-[[image:image-20230805144259-1.png||height="413" width="741"]]
145	145
146		-== 1.9 Mechanical ==
	145	+(((
	146	+(% style="color:blue" %)**LED Status:**
	147	+)))
147	147
	149	+* (((
	150	+**Onboard LED**: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
	151	+)))
148	148
149		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
	153	+* (((
	154	+(% 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.
	155	+)))
	156	+* (((
	157	+(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** slowly blinking**(%%): Sensor detects Liquid Level, The installation point is good.
	158	+)))
150	150
	160	+(((
	161	+LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
	162	+)))
151	151
152		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
153	153
	165	+(((
	166	+(% style="color:red" %)**Note :**(%%)** (% style="color:blue" %)Ultrasonic coupling paste(%%)**(% style="color:blue" %) (%%) is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
	167	+)))
154	154
155		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
156	156
	170	+(((
	171	+(% style="color:blue" %)**Step4:   **(%%)**Install use Epoxy ab glue.**
	172	+)))
157	157
158		-(% style="color:blue" %)**Probe Mechanical:**
	174	+(((
	175	+Prepare Eproxy AB glue.
	176	+)))
159	159
	178	+(((
	179	+Put Eproxy AB glue in the sensor and press it hard on the container installation point.
	180	+)))
160	160
161		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654827224480-952.png?rev=1.1||alt="1654827224480-952.png"]]
	182	+(((
	183	+Reset DDS20-LB and see if the BLUE LED is slowly blinking.
	184	+)))
162	162
	186	+[[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"]]
163	163
164		-= 2. Configure LDS12-LB to connect to LoRaWAN network =
165	165
166		-== 2.1 How it works ==
	189	+(((
	190	+(% style="color:red" %)**Note :**
167	167
	192	+(% style="color:red" %)**1:**(%%)** (% style="color:blue" %)Eproxy AB glue(%%)** needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
	193	+)))
168	168
169		-The LDS12-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 LDS12-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
	195	+(((
	196	+(% style="color:red" %)**2:**(%%)** (% style="color:blue" %)Eproxy AB glue(%%)** is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
	197	+)))
170	170
171		-(% style="display:none" %) (%%)
172	172
173		-== 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
	200	+== 1.6 Applications ==
174	174
175	175
176		-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.
	203	+* Smart liquid control solution
177	177
178		-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.
	205	+* Smart liquefied gas solution
179	179
180		-[[image:image-20231110091447-3.png||height="383" width="752"]](% style="display:none" %)
181	181
	208	+== 1.7 Precautions ==
182	182
183		-(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from LDS12-LB.
184	184
185		-Each LDS12-LB is shipped with a sticker with the default device EUI as below:
	211	+* 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.
186	186
187		-[[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
	213	+* 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.
188	188
	215	+* 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.
189	189
190		-You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	217	+(% style="display:none" %)
191	191
	219	+== 1.8 Sleep mode and working mode ==
192	192
193		-(% style="color:blue" %)**Register the device**
194	194
195		-[[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"]]
	222	+(% 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.
196	196
	224	+(% 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.
197	197
198		-(% style="color:blue" %)**Add APP EUI and DEV EUI**
199	199
200		-[[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"]]
	227	+== 1.9 Button & LEDs ==
201	201
202	202
203		-(% style="color:blue" %)**Add APP EUI in the application**
	230	+[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
204	204
205	205
206		-[[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"]]
	233	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	234	+|=(% 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**
	235	+|(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
	236	+If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
	237	+Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	238	+)))
	239	+|(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
	240	+(% 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.
	241	+(% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
	242	+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.
	243	+)))
	244	+|(% 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.
207	207
208	208
209		-(% style="color:blue" %)**Add APP KEY**
	247	+== 1.10 BLE connection ==
210	210
211		-[[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"]]
212	212
	250	+DDS20-LB support BLE remote configure.
213	213
214		-(% style="color:blue" %)**Step 2:**(%%) Activate on LDS12-LB
	252	+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:
215	215
	254	+* Press button to send an uplink
	255	+* Press button to active device.
	256	+* Device Power on or reset.
216	216
217		-Press the button for 5 seconds to activate the LDS12-LB.
	258	+If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
218	218
219		-(% 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.
220	220
221		-After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	261	+== 1.11 Pin Definitions ==
222	222
	263	+[[image:image-20230523174230-1.png]]
223	223
224		-== 2.3 ​Uplink Payload ==
225	225
226		-=== 2.3.1 Device Status, FPORT~=5 ===
	266	+== 1.12 Mechanical ==
227	227
228	228
229		-Users can use the downlink command(**0x26 01**) to ask LDS12-LB to send device configure detail, include device configure status. LDS12-LB will uplink a payload via FPort=5 to server.
	269	+[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
230	230
231		-The Payload format is as below.
232	232
233		-(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
234		-|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
235		-**Size(bytes)**
236		-)))|=(% 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**
237		-|(% 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
	272	+[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
238	238
239		-Example parse in TTNv3
240	240
241		-[[image:image-20230805103904-1.png||height="131" width="711"]]
	275	+[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
242	242
243		-(% style="color:blue" %)**Sensor Model**(%%): For LDS12-LB, this value is 0x24
244	244
245		-(% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
	278	+(% style="color:blue" %)**Probe Mechanical:**
246	246
247		-(% style="color:blue" %)**Frequency Band**:
	280	+[[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"]]
248	248
249		-0x01: EU868
250	250
251		-0x02: US915
	283	+[[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"]]
252	252
253		-0x03: IN865
254	254
255		-0x04: AU915
	286	+= 2. Configure DDS20-LB to connect to LoRaWAN network =
256	256
257		-0x05: KZ865
	288	+== 2.1 How it works ==
258	258
259		-0x06: RU864
260	260
261		-0x07: AS923
	291	+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.
262	262
263		-0x08: AS923-1
	293	+(% style="display:none" %) (%%)
264	264
265		-0x09: AS923-2
	295	+== 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
266	266
267		-0x0a: AS923-3
268	268
269		-0x0b: CN470
	298	+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.
270	270
271		-0x0c: EU433
	300	+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.
272	272
273		-0x0d: KR920
	302	+[[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %)
274	274
275		-0x0e: MA869
276	276
277		-(% style="color:blue" %)**Sub-Band**:
	305	+(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS20-LB.
278	278
279		-AU915 and US915:value 0x00 ~~ 0x08
	307	+Each DDS20-LB is shipped with a sticker with the default device EUI as below:
280	280
281		-CN470: value 0x0B ~~ 0x0C
	309	+[[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
282	282
283		-Other Bands: Always 0x00
284	284
285		-(% style="color:blue" %)**Battery Info**:
	312	+You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
286	286
287		-Check the battery voltage.
288	288
289		-Ex1: 0x0B45 = 2885mV
	315	+(% style="color:blue" %)**Register the device**
290	290
291		-Ex2: 0x0B49 = 2889mV
	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/1654935135620-998.png?rev=1.1||alt="1654935135620-998.png"]]
292	292
293	293
294		-=== 2.3.2 Uplink Payload, FPORT~=2 ===
	320	+(% style="color:blue" %)**Add APP EUI and DEV EUI**
295	295
	322	+[[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"]]
296	296
297		-(((
298		-LDS12-LB will send this uplink **after** Device Status once join the LoRaWAN network successfully. And LDS12-LB will:
299	299
300		-periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
	325	+(% style="color:blue" %)**Add APP EUI in the application**
301	301
302		-Uplink Payload totals 11 bytes.
303		-)))
304	304
305		-(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
306		-|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
307		-**Size(bytes)**
308		-)))|=(% 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**
309		-|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((
310		-[[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]
311		-)))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((
312		-[[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]
313		-)))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((
314		-[[Message Type>>||anchor="HMessageType"]]
315		-)))
	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-20220611161308-5.png?width=742&height=601&rev=1.1||alt="图片-20220611161308-5.png"]]
316	316
317		-[[image:image-20230805104104-2.png||height="136" width="754"]]
318	318
	331	+(% style="color:blue" %)**Add APP KEY**
319	319
320		-==== (% style="color:blue" %)**Battery Info**(%%) ====
	333	+[[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"]]
321	321
322	322
323		-Check the battery voltage for LDS12-LB.
	336	+(% style="color:blue" %)**Step 2:**(%%) Activate on DDS20-LB
324	324
325		-Ex1: 0x0B45 = 2885mV
326	326
327		-Ex2: 0x0B49 = 2889mV
	339	+Press the button for 5 seconds to activate the DDS20-LB.
328	328
	341	+(% 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.
329	329
330		-==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
	343	+After join success, it will start to upload messages to TTN and you can see the messages in the panel.
331	331
332	332
333		-This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
	346	+== 2.3  ​Uplink Payload ==
334	334
335	335
336		-**Example**:
	349	+(((
	350	+DDS20-LB will uplink payload via LoRaWAN with below payload format:
	351	+)))
337	337
338		-If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
	353	+(((
	354	+Uplink payload includes in total 8 bytes.
	355	+)))
339	339
340		-If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	357	+(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
	358	+|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
	359	+**Size(bytes)**
	360	+)))|=(% 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**
	361	+|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
	362	+[[Distance>>||anchor="H2.3.2A0Distance"]]
	363	+(unit: mm)
	364	+)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
	365	+[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
	366	+)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
341	341
	368	+[[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"]]
342	342
343		-==== (% style="color:blue" %)**Distance**(%%) ====
344	344
	371	+=== 2.3.1  Battery Info ===
345	345
346		-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.
347	347
	374	+Check the battery voltage for DDS20-LB.
348	348
349		-**Example**:
	376	+Ex1: 0x0B45 = 2885mV
350	350
351		-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.
	378	+Ex2: 0x0B49 = 2889mV
352	352
353	353
354		-==== (% style="color:blue" %)**Distance signal strength**(%%) ====
	381	+=== 2.3.2  Distance ===
355	355
356	356
357		-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.
	384	+(((
	385	+Get the distance. Flat object range 20mm - 2000mm.
	386	+)))
358	358
	388	+(((
	389	+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" %)** **
359	359
360		-**Example**:
	391	+(% style="color:blue" %)**0605(H) = 1541 (D) = 1541 mm.**
	392	+)))
361	361
362		-If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
	394	+* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
363	363
364		-Customers can judge whether they need to adjust the environment based on the signal strength.
	396	+* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
365	365
366	366
367		-**1) When the sensor detects valid data:**
	399	+=== 2.3.3  Interrupt Pin ===
368	368
369		-[[image:image-20230805155335-1.png||height="145" width="724"]]
370	370
371		-
372		-**2) When the sensor detects invalid data:**
373		-
374		-[[image:image-20230805155428-2.png||height="139" width="726"]]
375		-
376		-
377		-**3) When the sensor is not connected:**
378		-
379		-[[image:image-20230805155515-3.png||height="143" width="725"]]
380		-
381		-
382		-==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
383		-
384		-
385	385	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.
386	386
387		-Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.8PinDefinitions"]] of GPIO_EXTI .
388		-
389	389	**Example:**
390	390
391		-If byte[0]&0x01=0x00 : Normal uplink packet.
	406	+0x00: Normal uplink packet.
392	392
393		-If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
	408	+0x01: Interrupt Uplink Packet.
394	394
395	395
396		-==== (% style="color:blue" %)**LiDAR temp**(%%) ====
	411	+=== 2.3.4  DS18B20 Temperature sensor ===
397	397
398	398
399		-Characterize the internal temperature value of the sensor.
	414	+This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
400	400
401		-**Example: **
402		-If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
403		-If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
	416	+**Example**:
404	404
	418	+If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
405	405
406		-==== (% style="color:blue" %)**Message Type**(%%) ====
	420	+If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
407	407
408	408
	423	+=== 2.3.5  Sensor Flag ===
	424	+
	425	+
409	409	(((
410		-For a normal uplink payload, the message type is always 0x01.
	427	+0x01: Detect Ultrasonic Sensor
411	411	)))
412	412
413	413	(((
414		-Valid Message Type:
	431	+0x00: No Ultrasonic Sensor
415	415	)))
416	416
417		-(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
418		-|=(% 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**
419		-|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload
420		-|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload
421	421
422		-[[image:image-20230805150315-4.png||height="233" width="723"]]
	435	+=== 2.3.6  Decode payload in The Things Network ===
423	423
424	424
425		-=== 2.3.3 Historical measuring distance, FPORT~=3 ===
	438	+While using TTN network, you can add the payload format to decode the payload.
426	426
	440	+[[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"]]
427	427
428		-LDS12-LB stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
	442	+The payload decoder function for TTN V3 is here:
429	429
430		-The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
431		-
432		-(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
433		-|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
434		-**Size(bytes)**
435		-)))|=(% 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
436		-|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)Interrupt flag & Interrupt_level|(% style="width:62.5px" %)(((
437		-Reserve(0xFF)
438		-)))|Distance|Distance signal strength|(% style="width:88px" %)(((
439		-LiDAR temp
440		-)))|(% style="width:85px" %)Unix TimeStamp
441		-
442		-**Interrupt flag & Interrupt level:**
443		-
444		-(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
445		-|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
446		-**Size(bit)**
447		-)))|=(% 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**
448		-|(% 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" %)(((
449		-Interrupt flag
	444	+(((
	445	+DDS20-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
450	450	)))
451	451
452		-* (((
453		-Each data entry is 11 bytes and has the same structure as [[Uplink Payload>>||anchor="H2.3.2UplinkPayload2CFPORT3D2"]], to save airtime and battery, LDS12-LB will send max bytes according to the current DR and Frequency bands.
454		-)))
455	455
456		-For example, in the US915 band, the max payload for different DR is:
	449	+== 2.4  Uplink Interval ==
457	457
458		-**a) DR0:** max is 11 bytes so one entry of data
459	459
460		-**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
	452	+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"]]
461	461
462		-**c) DR2:** total payload includes 11 entries of data
463	463
464		-**d) DR3:** total payload includes 22 entries of data.
	455	+== 2.5  ​Show Data in DataCake IoT Server ==
465	465
466		-If LDS12-LB doesn't have any data in the polling time. It will uplink 11 bytes of 0
467	467
468		-
469		-**Downlink:**
470		-
471		-0x31 64 CC 68 0C 64 CC 69 74 05
472		-
473		-[[image:image-20230805144936-2.png||height="113" width="746"]]
474		-
475		-**Uplink:**
476		-
477		-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
478		-
479		-
480		-**Parsed Value:**
481		-
482		-[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
483		-
484		-
485		-[360,176,30,High,True,2023-08-04 02:53:00],
486		-
487		-[355,168,30,Low,False,2023-08-04 02:53:29],
488		-
489		-[245,211,30,Low,False,2023-08-04 02:54:29],
490		-
491		-[57,700,30,Low,False,2023-08-04 02:55:29],
492		-
493		-[361,164,30,Low,True,2023-08-04 02:56:00],
494		-
495		-[337,184,30,Low,False,2023-08-04 02:56:40],
496		-
497		-[20,4458,30,Low,False,2023-08-04 02:57:40],
498		-
499		-[362,173,30,Low,False,2023-08-04 02:58:53],
500		-
501		-
502		-**History read from serial port：**
503		-
504		-[[image:image-20230805145056-3.png]]
505		-
506		-
507		-=== 2.3.4 Decode payload in The Things Network ===
508		-
509		-
510		-While using TTN network, you can add the payload format to decode the payload.
511		-
512		-[[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"]]
513		-
514		-
515	515	(((
516		-The payload decoder function for TTN is here:
517		-)))
518		-
519		-(((
520		-LDS12-LB TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
521		-)))
522		-
523		-
524		-== 2.4 ​Show Data in DataCake IoT Server ==
525		-
526		-
527		-(((
528	528	[[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:
529	529	)))
530	530
...	...	@@ -546,7 +546,7 @@
546	546
547	547	(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
548	548
549		-(% style="color:blue" %)**Step 4**(%%)**: Search the LDS12-LB and add DevEUI.**
	480	+(% style="color:blue" %)**Step 4**(%%)**: Search the DDS20-LB and add DevEUI.**
550	550
551	551	[[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"]]
552	552
...	...	@@ -556,22 +556,22 @@
556	556	[[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"]]
557	557
558	558
559		-== 2.5 Datalog Feature ==
	490	+== 2.6 Datalog Feature ==
560	560
561	561
562		-Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, LDS12-LB will store the reading for future retrieving purposes.
	493	+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.
563	563
564	564
565		-=== 2.5.1 Ways to get datalog via LoRaWAN ===
	496	+=== 2.6.1 Ways to get datalog via LoRaWAN ===
566	566
567	567
568		-Set PNACKMD=1, LDS12-LB will wait for ACK for every uplink, when there is no LoRaWAN network,LDS12-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.
	499	+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.
569	569
570	570	* (((
571		-a) LDS12-LB will do an ACK check for data records sending to make sure every data arrive server.
	502	+a) DDS20-LB will do an ACK check for data records sending to make sure every data arrive server.
572	572	)))
573	573	* (((
574		-b) LDS12-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but LDS12-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 LDS12-LB gets a ACK, LDS12-LB will consider there is a network connection and resend all NONE-ACK messages.
	505	+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.
575	575	)))
576	576
577	577	Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
...	...	@@ -579,10 +579,10 @@
579	579	[[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"]]
580	580
581	581
582		-=== 2.5.2 Unix TimeStamp ===
	513	+=== 2.6.2 Unix TimeStamp ===
583	583
584	584
585		-LDS12-LB uses Unix TimeStamp format based on
	516	+DDS20-LB uses Unix TimeStamp format based on
586	586
587	587	[[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"]]
588	588
...	...	@@ -596,23 +596,23 @@
596	596	So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
597	597
598	598
599		-=== 2.5.3 Set Device Time ===
	530	+=== 2.6.3 Set Device Time ===
600	600
601	601
602	602	User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
603	603
604		-Once LDS12-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LDS12-LB. If LDS12-LB fails to get the time from the server, LDS12-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
	535	+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).
605	605
606	606	(% 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.**
607	607
608	608
609		-=== 2.5.4 Poll sensor value ===
	540	+=== 2.6.4 Poll sensor value ===
610	610
611	611
612	612	Users can poll sensor values based on timestamps. Below is the downlink command.
613	613
614	614	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
615		-|(% colspan="4" style="background-color:#4f81bd; color:white; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
	546	+|(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
616	616	|(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
617	617	|(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
618	618
...	...	@@ -629,108 +629,24 @@
629	629	)))
630	630
631	631	(((
632		-Uplink Internal =5s，means LDS12-LB will send one packet every 5s. range 5~~255s.
	563	+Uplink Internal =5s，means DDS20-LB will send one packet every 5s. range 5~~255s.
633	633	)))
634	634
635	635
636		-== 2.6 Frequency Plans ==
	567	+== 2.7 Frequency Plans ==
637	637
638	638
639		-The LDS12-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.
	570	+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.
640	640
641	641	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
642	642
643	643
644		-== 2.7 LiDAR ToF Measurement ==
	575	+= 3. Configure DDS20-LB =
645	645
646		-=== 2.7.1 Principle of Distance Measurement ===
647		-
648		-
649		-The LiDAR probe is based on TOF, namely, Time of Flight principle. To be specific, the product emits modulation wave of near infrared ray on a periodic basis, which will be reflected after contacting object. The product obtains the time of flight by measuring round-trip phase difference and then calculates relative range between the product and the detection object, as shown below.
650		-
651		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831757579-263.png?rev=1.1||alt="1654831757579-263.png"]]
652		-
653		-
654		-=== 2.7.2 Distance Measurement Characteristics ===
655		-
656		-
657		-With optimization of light path and algorithm, The LiDAR probe has minimized influence from external environment on distance measurement performance. Despite that, the range of distance measurement may still be affected by the environment illumination intensity and the reflectivity of detection object. As shown in below:
658		-
659		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831774373-275.png?rev=1.1||alt="1654831774373-275.png"]]
660		-
661		-
662		-(((
663		-(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
664		-)))
665		-
666		-(((
667		-(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
668		-)))
669		-
670		-(((
671		-(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
672		-)))
673		-
674		-
675		-(((
676		-Vertical Coordinates: Represents the radius of light spot for The LiDAR probe at different distances. The diameter of light spot depends on the FOV of The LiDAR probe (the term of FOV generally refers to the smaller value between the receiving angle and the transmitting angle), which is calculated as follows:
677		-)))
678		-
679		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831797521-720.png?rev=1.1||alt="1654831797521-720.png"]]
680		-
681		-(((
682		-In the formula above, d is the diameter of light spot; D is detecting range; β is the value of the receiving angle of The LiDAR probe, 3.6°. Correspondence between the diameter of light spot and detecting range is given in Table below.
683		-)))
684		-
685		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831810009-716.png?rev=1.1||alt="1654831810009-716.png"]]
686		-
687		-(((
688		-If the light spot reaches two objects with different distances, as shown in Figure 3, the output distance value will be a value between the actual distance values of the two objects. For a high accuracy requirement in practice, the above situation should be noticed to avoid the measurement error.
689		-)))
690		-
691		-
692		-=== 2.7.3 Notice of usage ===
693		-
694		-
695		-Possible invalid /wrong reading for LiDAR ToF tech:
696		-
697		-* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
698		-* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might be wrong.
699		-* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
700		-* The sensor window is made by Acrylic. Don't touch it with alcohol material. This will destroy the sensor window.
701		-
702		-=== 2.7.4  Reflectivity of different objects ===
703		-
704		-
705		-(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:379px" %)
706		-|=(% style="width: 54px;background-color:#4F81BD;color:white" %)Item|=(% style="width: 231px;background-color:#4F81BD;color:white" %)Material|=(% style="width: 94px;background-color:#4F81BD;color:white" %)Relectivity
707		-|(% style="width:53px" %)1|(% style="width:229px" %)Black foam rubber|(% style="width:93px" %)2.4%
708		-|(% style="width:53px" %)2|(% style="width:229px" %)Black fabric|(% style="width:93px" %)3%
709		-|(% style="width:53px" %)3|(% style="width:229px" %)Black rubber|(% style="width:93px" %)4%
710		-|(% style="width:53px" %)4|(% style="width:229px" %)Coal (different types of coal)|(% style="width:93px" %)4~~8%
711		-|(% style="width:53px" %)5|(% style="width:229px" %)Black car paint|(% style="width:93px" %)5%
712		-|(% style="width:53px" %)6|(% style="width:229px" %)Black Jam|(% style="width:93px" %)10%
713		-|(% style="width:53px" %)7|(% style="width:229px" %)Opaque black plastic|(% style="width:93px" %)14%
714		-|(% style="width:53px" %)8|(% style="width:229px" %)Clean rough board|(% style="width:93px" %)20%
715		-|(% style="width:53px" %)9|(% style="width:229px" %)Translucent plastic bottle|(% style="width:93px" %)62%
716		-|(% style="width:53px" %)10|(% style="width:229px" %)Carton cardboard|(% style="width:93px" %)68%
717		-|(% style="width:53px" %)11|(% style="width:229px" %)Clean pine|(% style="width:93px" %)70%
718		-|(% style="width:53px" %)12|(% style="width:229px" %)Opaque white plastic|(% style="width:93px" %)87%
719		-|(% style="width:53px" %)13|(% style="width:229px" %)White Jam|(% style="width:93px" %)90%
720		-|(% style="width:53px" %)14|(% style="width:229px" %)Kodak Standard Whiteboard|(% style="width:93px" %)100%
721		-|(% style="width:53px" %)15|(% style="width:229px" %)(((
722		-Unpolished white metal surface
723		-)))|(% style="width:93px" %)130%
724		-|(% style="width:53px" %)16|(% style="width:229px" %)Glossy light metal surface|(% style="width:93px" %)150%
725		-|(% style="width:53px" %)17|(% style="width:229px" %)stainless steel|(% style="width:93px" %)200%
726		-|(% style="width:53px" %)18|(% style="width:229px" %)Reflector plate, reflective tape|(% style="width:93px" %)>300%
727		-
728		-= 3. Configure LDS12-LB =
729		-
730	730	== 3.1 Configure Methods ==
731	731
732	732
733		-LDS12-LB supports below configure method:
	580	+DDS20-LB supports below configure method:
734	734
735	735	* AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
736	736
...	...	@@ -738,6 +738,7 @@
738	738
739	739	* LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
740	740
	588	+
741	741	== 3.2 General Commands ==
742	742
743	743
...	...	@@ -752,10 +752,10 @@
752	752	[[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/]]
753	753
754	754
755		-== 3.3 Commands special design for LDS12-LB ==
	603	+== 3.3 Commands special design for DDS20-LB ==
756	756
757	757
758		-These commands only valid for LDS12-LB, as below:
	606	+These commands only valid for DDS20-LB, as below:
759	759
760	760
761	761	=== 3.3.1 Set Transmit Interval Time ===
...	...	@@ -770,7 +770,7 @@
770	770	)))
771	771
772	772	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
773		-|=(% 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**
	621	+|=(% 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**
774	774	|(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
775	775	30000
776	776	OK
...	...	@@ -806,24 +806,20 @@
806	806	=== 3.3.2 Set Interrupt Mode ===
807	807
808	808
809		-Feature, Set Interrupt mode for pin of GPIO_EXTI.
	657	+Feature, Set Interrupt mode for PA8 of pin.
810	810
811		-When AT+INTMOD=0 is set, GPIO_EXTI is used as a digital input port.
	659	+When AT+INTMOD=0 is set, PA8 is used as a digital input port.
812	812
813	813	(% style="color:blue" %)**AT Command: AT+INTMOD**
814	814
815	815	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
816		-|=(% 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**
	664	+|=(% 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**
817	817	|(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
818	818	0
819	819	OK
820	820	the mode is 0 =Disable Interrupt
821	821	)))
822		-|(% style="width:154px" %)(((
823		-AT+INTMOD=2
824		-
825		-(default)
826		-)))|(% style="width:196px" %)(((
	670	+|(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
827	827	Set Transmit Interval
828	828	0. (Disable Interrupt),
829	829	~1. (Trigger by rising and falling edge)
...	...	@@ -841,39 +841,11 @@
841	841
842	842	* Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
843	843
844		-=== 3.3.3  Set Power Output Duration ===
845	845
846		-Control the output duration 3V3(pin of VBAT_OUT) . Before each sampling, device will
847		-
848		-~1. first enable the power output to external sensor,
849		-
850		-2. keep it on as per duration, read sensor value and construct uplink payload
851		-
852		-3. final, close the power output.
853		-
854		-(% style="color:blue" %)**AT Command: AT+3V3T**
855		-
856		-(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
857		-|=(% 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**
858		-|(% style="width:154px" %)AT+3V3T=?|(% style="width:196px" %)Show 3V3 open time.|(% style="width:157px" %)0 (default)
859		-OK
860		-|(% style="width:154px" %)AT+3V3T=1000|(% style="width:196px" %)Close after a delay of 1000 milliseconds.|(% style="width:157px" %)OK
861		-|(% style="width:154px" %)AT+3V3T=0|(% style="width:196px" %)Always turn on the power supply of 3V3 pin.|(% style="width:157px" %)OK
862		-|(% style="width:154px" %)AT+3V3T=65535|(% style="width:196px" %)Always turn off the power supply of 3V3 pin.|(% style="width:157px" %)OK
863		-
864		-(% style="color:blue" %)**Downlink Command: 0x07**(%%)
865		-Format: Command Code (0x07) followed by 3 bytes.
866		-
867		-The first byte is 01,the second and third bytes are the time to turn on.
868		-
869		-* Example 1: Downlink Payload: 07 01 00 00  **~-~-->**  AT+3V3T=0
870		-* Example 2: Downlink Payload: 07 01 01 F4  **~-~-->**  AT+3V3T=500
871		-* Example 3: Downlink Payload: 07 01 FF FF  **~-~-->**  AT+3V3T=65535
872		-
873	873	= 4. Battery & Power Consumption =
874	874
875	875
876		-LDS12-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
	692	+DDS20-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
877	877
878	878	[[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
879	879
...	...	@@ -882,7 +882,7 @@
882	882
883	883
884	884	(% class="wikigeneratedid" %)
885		-User can change firmware LDS12-LB to:
	701	+User can change firmware DDS20-LB to:
886	886
887	887	* Change Frequency band/ region.
888	888
...	...	@@ -890,7 +890,7 @@
890	890
891	891	* Fix bugs.
892	892
893		-Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/w1p7ukjrx49e62r/AAB3uCNCt-koYUvMkZUPBRSca?dl=0]]**
	709	+Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/ph4uyz0rchflrnw/AADr1f_5Sg30804NItpfOQbla?dl=0]]**
894	894
895	895	Methods to Update Firmware:
896	896
...	...	@@ -898,40 +898,42 @@
898	898
899	899	* 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]]**.
900	900
	717	+
901	901	= 6. FAQ =
902	902
903		-== 6.1 What is the frequency plan for LDS12-LB? ==
	720	+== 6.1  What is the frequency plan for DDS20-LB? ==
904	904
905	905
906		-LDS12-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"]]
	723	+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"]]
907	907
908	908
909		-= 7. Trouble Shooting =
	726	+== 6.2  Can I use DDS20-LB in condensation environment? ==
910	910
911		-== 7.1 AT Command input doesn't work ==
912	912
	729	+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.
913	913
914		-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.
915	915
	732	+= 7.  Trouble Shooting =
916	916
917		-== 7.2 Significant error between the output distant value of LiDAR and actual distance ==
	734	+== 7.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
918	918
919	919
920		-(((
921		-(% 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.)
922		-)))
	737	+It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
923	923
924		-(((
925		-(% style="color:red" %)**Troubleshooting**(%%): Please avoid use of this product under such circumstance in practice.
926		-)))
927	927
	740	+== 7.2  AT Command input doesn't work ==
928	928
929		-(((
930		-(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
931		-)))
932	932
	743	+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.
	744	+
	745	+
	746	+== 7.3  Why i always see 0x0000 or 0 for the distance value? ==
	747	+
	748	+
933	933	(((
934		-(% style="color:red" %)**Troubleshooting**(%%): please use dry dust-free cloth to gently remove the foreign matter.
	750	+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.
	751	+
	752	+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.
935	935	)))
936	936
937	937
...	...	@@ -938,7 +938,7 @@
938	938	= 8. Order Info =
939	939
940	940
941		-Part Number: (% style="color:blue" %)**LDS12-LB-XXX**
	759	+Part Number: (% style="color:blue" %)**DDS20-LB-XXX**
942	942
943	943	(% style="color:red" %)**XXX**(%%): **The default frequency band**
944	944
...	...	@@ -958,12 +958,13 @@
958	958
959	959	* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
960	960
	779	+
961	961	= 9. ​Packing Info =
962	962
963	963
964	964	(% style="color:#037691" %)**Package Includes**:
965	965
966		-* LDS12-LB LoRaWAN LiDAR ToF Distance Sensor x 1
	785	+* DDS20-LB LoRaWAN Ultrasonic Liquid Level Sensor x 1
967	967
968	968	(% style="color:#037691" %)**Dimension and weight**:
969	969
...	...	@@ -975,6 +975,7 @@
975	975
976	976	* Weight / pcs : g
977	977
	797	+
978	978	= 10. Support =
979	979
980	980

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