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

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Details

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1		-DDS20-LB -- LoRaWAN Ultrasonic Liquid Level Sensor User Manual
	1	+DS20L -- LoRaWAN Smart Distance Detector User Manual

Content

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1	1	(% style="text-align:center" %)
2		-[[image:image-20230613133716-2.png||height="717" width="717"]]
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19	19
20	20	= 1. Introduction =
21	21
22		-== 1.1 What is LoRaWAN Ultrasonic liquid level Sensor ==
	22	+== 1.1 What is LoRaWAN Smart Distance Detector ==
23	23
24	24
25		-The Dragino DDS20-LB is a (% style="color:blue" %)**LoRaWAN Ultrasonic liquid level sensor**(%%) for Internet of Things solution. It uses (% style="color:blue" %)**none-contact method **(%%)to measure the (% style="color:blue" %)**height of liquid**(%%) in a container without opening the container, and send the value via LoRaWAN network to IoT Server.
	25	+The Dragino (% style="color:blue" %)**DS20L is a smart distance detector**(%%) base on long-range wireless LoRaWAN technology. It uses (% style="color:blue" %)**LiDAR sensor**(%%) to detect the distance between DS20L and object, then DS20L will send the distance data to the IoT Platform via LoRaWAN.
26	26
27		-The DDS20-LB sensor is installed directly below the container to detect the height of the liquid level. User doesn't need to open a hole on the container to be tested. The none-contact measurement makes the measurement safety, easier and possible for some strict situation.
	27	+DS20L allows users to send data and reach extremely long ranges via LoRaWAN. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current
	28	+consumption. It targets professional wireless sensor network applications such smart cities, building automation, and so on.
28	28
29		-DDS20-LB uses (% style="color:blue" %)**ultrasonic sensing technology**(%%) for distance measurement. DDS20-LB is of high accuracy to measure various liquid such as: (% style="color:blue" %)**toxic substances**(%%), (% style="color:blue" %)**strong acids**(%%), (% style="color:blue" %)**strong alkalis**(%%) and (% style="color:blue" %)**various pure liquids**(%%) in high-temperature and high-pressure airtight containers.
	30	+DS20L has a (% style="color:blue" %)**built-in 2400mAh non-chargeable battery**(%%) for long-term use up to several years*. Users can also power DS20L with an external power source for (% style="color:blue" %)**continuous measuring and distance alarm / counting purposes.**
30	30
31		-The LoRa wireless technology used in DDS20-LB allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
	32	+DS20L is fully compatible with (% style="color:blue" %)**LoRaWAN v1.0.3 Class A protocol**(%%), it can work with a standard LoRaWAN gateway.
32	32
33		-DDS20-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
	34	+DS20L supports (% style="color:blue" %)**Datalog feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
34	34
35		-DDS20-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
	36	+[[image:image-20231110102635-5.png||height="402" width="807"]]
36	36
37		-Each DDS20-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
38	38
39		-[[image:image-20230613140115-3.png||height="453" width="800"]]
40		-
41		-
42	42	== 1.2 ​Features ==
43	43
44	44
45		-* LoRaWAN 1.0.3 Class A
46		-* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
47		-* Ultra-low power consumption
48		-* Liquid Level Measurement by Ultrasonic technology
49		-* Measure through container, No need to contact Liquid
50		-* Valid level range 20mm - 2000mm
51		-* Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
52		-* Cable Length : 25cm
53		-* Support Bluetooth v5.1 and LoRaWAN remote configure
54		-* Support wireless OTA update firmware
	42	+* LoRaWAN Class A protocol
	43	+* LiDAR distance detector, range 3 ~~ 200cm
	44	+* Periodically detect or continuously detect mode
55	55	* AT Commands to change parameters
56		-* Downlink to change configure
57		-* IP66 Waterproof Enclosure
58		-* 8500mAh Battery for long term use
	46	+* Remotely configure parameters via LoRaWAN Downlink
	47	+* Alarm & Counting mode
	48	+* Datalog Feature
	49	+* Firmware upgradable via program port or LoRa protocol
	50	+* Built-in 2400mAh battery or power by external power source
59	59
	52	+
	53	+
60	60	== 1.3 Specification ==
61	61
62	62
63		-(% style="color:#037691" %)**Common DC Characteristics:**
	57	+(% style="color:#037691" %)**LiDAR Sensor:**
64	64
65		-* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
66		-* Operating Temperature: -40 ~~ 85°C
	59	+* Operation Temperature: -40 ~~ 80 °C
	60	+* Operation Humidity: 0~~99.9%RH (no Dew)
	61	+* Storage Temperature: -10 ~~ 45°C
	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
67	67
68		-(% style="color:#037691" %)**LoRa Spec:**
	67	+(% style="display:none" %)
69	69
70		-* Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
71		-* Max +22 dBm constant RF output vs.
72		-* RX sensitivity: down to -139 dBm.
73		-* Excellent blocking immunity
74	74
75		-(% style="color:#037691" %)**Battery:**
76	76
77		-* Li/SOCI2 un-chargeable battery
78		-* Capacity: 8500mAh
79		-* Self-Discharge: <1% / Year @ 25°C
80		-* Max continuously current: 130mA
81		-* Max boost current: 2A, 1 second
	71	+= 2. Configure DS20L to connect to LoRaWAN network =
82	82
83		-(% style="color:#037691" %)**Power Consumption**
	73	+== 2.1 How it works ==
84	84
85		-* Sleep Mode: 5uA @ 3.3v
86		-* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
87	87
88		-== 1.4 Suitable Container & Liquid ==
	76	+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.
89	89
	78	+(% style="display:none" %) (%%)
90	90
91		-* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
92		-* Container shape is regular, and surface is smooth.
93		-* Container Thickness:
94		-** Pure metal material.  2~~8mm, best is 3~~5mm
95		-** Pure non metal material: <10 mm
96		-* Pure liquid without irregular deposition.(% style="display:none" %)
	80	+== 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
97	97
98		-== 1.5 Install DDS20-LB ==
99	99
	83	+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.
100	100
101		-(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
	85	+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" %)
102	102
103		-DDS20-LB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
	87	+[[image:image-20231110102635-5.png||height="402" width="807"]](% style="display:none" %)
104	104
105		-[[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"]]
	89	+(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DS20L.
106	106
	91	+Each DS20L is shipped with a sticker with the default device EUI as below:
107	107
108		-(((
109		-(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
110		-)))
	93	+[[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
111	111
112		-(((
113		-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.
114		-)))
115	115
116		-[[image:image-20230613143052-5.png]]
	96	+You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
117	117
118	118
119		-No polish needed if the container is shine metal surface without paint or non-metal container.
	99	+(% style="color:blue" %)**Register the device**
120	120
121		-[[image:image-20230613143125-6.png]]
	101	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/1654935135620-998.png?rev=1.1||alt="1654935135620-998.png"]]
122	122
123	123
124		-(((
125		-(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
126		-)))
	104	+(% style="color:blue" %)**Add APP EUI and DEV EUI**
127	127
128		-(((
129		-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.
130		-)))
	106	+[[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"]]
131	131
132		-(((
133		-It is necessary to put the coupling paste between the sensor and the container, otherwise DDS20-LB won't detect the liquid level.
134		-)))
135	135
136		-(((
137		-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.
138		-)))
	109	+(% style="color:blue" %)**Add APP EUI in the application**
139	139
140	140
141		-(((
142		-(% style="color:red" %)**LED Status:**
143		-)))
	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/image-20220611161308-5.png?width=742&height=601&rev=1.1||alt="图片-20220611161308-5.png"]]
144	144
145		-* (((
146		-Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
147		-)))
148	148
149		-* (((
150		-(% 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.
151		-)))
152		-* (((
153		-(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** slowly blinking**(%%): Sensor detects Liquid Level, The installation point is good.
154		-)))
	115	+(% style="color:blue" %)**Add APP KEY**
155	155
156		-(((
157		-LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
158		-)))
	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-20220611161308-6.png?width=744&height=485&rev=1.1||alt="图片-20220611161308-6.png"]]
159	159
160	160
161		-(((
162		-(% style="color:red" %)**Note 2:**
163		-)))
	120	+(% style="color:blue" %)**Step 2:**(%%) Activate on DS20L
164	164
165		-(((
166		-(% style="color:red" %)**Ultrasonic coupling paste** (%%) is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
167		-)))
168	168
	123	+Press the button for 5 seconds to activate the DS20L.
169	169
170		-(((
171		-(% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
172		-)))
	125	+(% 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.
173	173
174		-(((
175		-Prepare Eproxy AB glue.
176		-)))
	127	+After join success, it will start to upload messages to TTN and you can see the messages in the panel.
177	177
178		-(((
179		-Put Eproxy AB glue in the sensor and press it hard on the container installation point.
180		-)))
181	181
182		-(((
183		-Reset DDS20-LB and see if the BLUE LED is slowly blinking.
184		-)))
	130	+== 2.3 ​Uplink Payload ==
185	185
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"]]
	132	+=== 2.3.1 Device Status, FPORT~=5 ===
187	187
188	188
189		-(((
190		-(% 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.
191		-)))
	135	+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.
192	192
193		-(((
194		-(% 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.
195		-)))
	137	+The Payload format is as below.
196	196
	139	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	140	+|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
	141	+**Size(bytes)**
	142	+)))|=(% 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**
	143	+|(% 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
197	197
198		-== 1.6 Applications ==
	145	+Example parse in TTNv3
199	199
	147	+[[image:image-20230805103904-1.png||height="131" width="711"]]
200	200
201		-* Smart liquid control solution.
	149	+(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x24
202	202
203		-* Smart liquefied gas solution.
	151	+(% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
204	204
	153	+(% style="color:blue" %)**Frequency Band**:
205	205
206		-== 1.7 Precautions ==
	155	+0x01: EU868
207	207
	157	+0x02: US915
208	208
209		-* At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
	159	+0x03: IN865
210	210
211		-* For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
	161	+0x04: AU915
212	212
213		-* When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable.(% style="display:none" %)
	163	+0x05: KZ865
214	214
215		-== 1.8 Sleep mode and working mode ==
	165	+0x06: RU864
216	216
	167	+0x07: AS923
217	217
218		-(% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
	169	+0x08: AS923-1
219	219
220		-(% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
	171	+0x09: AS923-2
221	221
	173	+0x0a: AS923-3
222	222
223		-== 1.9 Button & LEDs ==
	175	+0x0b: CN470
224	224
	177	+0x0c: EU433
225	225
226		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
	179	+0x0d: KR920
227	227
	181	+0x0e: MA869
228	228
229		-(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
230		-|=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)**Action**
231		-|(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
232		-If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
233		-Meanwhile, BLE module will be active and user can connect via BLE to configure device.
234		-)))
235		-|(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
236		-(% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
237		-(% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
238		-Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.
239		-)))
240		-|(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
	183	+(% style="color:blue" %)**Sub-Band**:
241	241
242		-== 1.10 BLE connection ==
	185	+AU915 and US915:value 0x00 ~~ 0x08
243	243
	187	+CN470: value 0x0B ~~ 0x0C
244	244
245		-DDS20-LB support BLE remote configure.
	189	+Other Bands: Always 0x00
246	246
247		-BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
	191	+(% style="color:blue" %)**Battery Info**:
248	248
249		-* Press button to send an uplink
250		-* Press button to active device.
251		-* Device Power on or reset.
	193	+Check the battery voltage.
252	252
253		-If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	195	+Ex1: 0x0B45 = 2885mV
254	254
	197	+Ex2: 0x0B49 = 2889mV
255	255
256		-== 1.11 Pin Definitions ==
257	257
258		-[[image:image-20230523174230-1.png]]
	200	+=== 2.3.2 Uplink Payload, FPORT~=2 ===
259	259
260	260
261		-== 1.12 Mechanical ==
	203	+(((
	204	+DS20L will send this uplink **after** Device Status once join the LoRaWAN network successfully. And DS20L will:
262	262
	206	+periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
263	263
264		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
	208	+Uplink Payload totals 11 bytes.
	209	+)))
265	265
	211	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	212	+|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
	213	+**Size(bytes)**
	214	+)))|=(% 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**
	215	+|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((
	216	+[[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]
	217	+)))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((
	218	+[[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]
	219	+)))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((
	220	+[[Message Type>>||anchor="HMessageType"]]
	221	+)))
266	266
267		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
	223	+[[image:image-20230805104104-2.png||height="136" width="754"]]
268	268
269	269
270		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
	226	+==== (% style="color:blue" %)**Battery Info**(%%) ====
271	271
272	272
273		-(% style="color:blue" %)**Probe Mechanical:**
	229	+Check the battery voltage for DS20L.
274	274
275		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615090910-1.png?rev=1.1||alt="image-20220615090910-1.png"]]
	231	+Ex1: 0x0B45 = 2885mV
276	276
	233	+Ex2: 0x0B49 = 2889mV
277	277
278		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615090910-2.png?rev=1.1||alt="image-20220615090910-2.png"]]
279	279
	236	+==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
280	280
281		-= 2. Configure DDS20-LB to connect to LoRaWAN network =
282	282
283		-== 2.1 How it works ==
	239	+This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
284	284
285	285
286		-The DDS20-LB is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the DDS20-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
	242	+**Example**:
287	287
288		-(% style="display:none" %) (%%)
	244	+If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
289	289
290		-== 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
	246	+If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
291	291
292	292
293		-Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
	249	+==== (% style="color:blue" %)**Distance**(%%) ====
294	294
295		-The LPS8v2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
296	296
297		-[[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %)
	252	+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.
298	298
299	299
300		-(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS20-LB.
	255	+**Example**:
301	301
302		-Each DDS20-LB is shipped with a sticker with the default device EUI as below:
	257	+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.
303	303
304		-[[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
305	305
	260	+==== (% style="color:blue" %)**Distance signal strength**(%%) ====
306	306
307		-You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
308	308
	263	+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.
309	309
310		-(% style="color:blue" %)**Register the device**
311	311
312		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/1654935135620-998.png?rev=1.1||alt="1654935135620-998.png"]]
	266	+**Example**:
313	313
	268	+If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
314	314
315		-(% style="color:blue" %)**Add APP EUI and DEV EUI**
	270	+Customers can judge whether they need to adjust the environment based on the signal strength.
316	316
317		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-4.png?width=753&height=551&rev=1.1||alt="图片-20220611161308-4.png"]]
318	318
	273	+**1) When the sensor detects valid data:**
319	319
320		-(% style="color:blue" %)**Add APP EUI in the application**
	275	+[[image:image-20230805155335-1.png||height="145" width="724"]]
321	321
322	322
323		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-5.png?width=742&height=601&rev=1.1||alt="图片-20220611161308-5.png"]]
	278	+**2) When the sensor detects invalid data:**
324	324
	280	+[[image:image-20230805155428-2.png||height="139" width="726"]]
325	325
326		-(% style="color:blue" %)**Add APP KEY**
327	327
328		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-6.png?width=744&height=485&rev=1.1||alt="图片-20220611161308-6.png"]]
	283	+**3) When the sensor is not connected:**
329	329
	285	+[[image:image-20230805155515-3.png||height="143" width="725"]]
330	330
331		-(% style="color:blue" %)**Step 2:**(%%) Activate on DDS20-LB
332	332
	288	+==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
333	333
334		-Press the button for 5 seconds to activate the DDS20-LB.
335	335
336		-(% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
	291	+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.
337	337
338		-After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	293	+Note: The Internet Pin is a separate pin in the screw terminal. See pin mapping of GPIO_EXTI .
339	339
	295	+**Example:**
340	340
341		-== 2.3  ​Uplink Payload ==
	297	+If byte[0]&0x01=0x00 : Normal uplink packet.
342	342
	299	+If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
343	343
	301	+
	302	+==== (% style="color:blue" %)**LiDAR temp**(%%) ====
	303	+
	304	+
	305	+Characterize the internal temperature value of the sensor.
	306	+
	307	+**Example: **
	308	+If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
	309	+If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
	310	+
	311	+
	312	+==== (% style="color:blue" %)**Message Type**(%%) ====
	313	+
	314	+
344	344	(((
345		-DDS20-LB will uplink payload via LoRaWAN with below payload format:
	316	+For a normal uplink payload, the message type is always 0x01.
346	346	)))
347	347
348	348	(((
349		-Uplink payload includes in total 8 bytes.
	320	+Valid Message Type:
350	350	)))
351	351
352		-(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
353		-|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
354		-**Size(bytes)**
355		-)))|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="background-color:#D9E2F3;color:#0070C0" %)1|=(% style="background-color:#D9E2F3;color:#0070C0" %)2|=(% style="background-color:#D9E2F3;color:#0070C0" %)**1**
356		-|(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
357		-[[Distance>>||anchor="H2.3.2A0Distance"]]
358		-(unit: mm)
359		-)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
360		-[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
361		-)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
	323	+(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
	324	+|=(% 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**
	325	+|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload
	326	+|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload
362	362
363		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/1654850511545-399.png?rev=1.1||alt="1654850511545-399.png"]]
	328	+[[image:image-20230805150315-4.png||height="233" width="723"]]
364	364
365	365
366		-=== 2.3.1  Battery Info ===
	331	+=== 2.3.3 Historical measuring distance, FPORT~=3 ===
367	367
368	368
369		-Check the battery voltage for DDS20-LB.
	334	+DS20L stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
370	370
371		-Ex1: 0x0B45 = 2885mV
	336	+The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
372	372
373		-Ex2: 0x0B49 = 2889mV
	338	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	339	+|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
	340	+**Size(bytes)**
	341	+)))|=(% 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
	342	+|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)Interrupt flag & Interrupt_level|(% style="width:62.5px" %)(((
	343	+Reserve(0xFF)
	344	+)))|Distance|Distance signal strength|(% style="width:88px" %)(((
	345	+LiDAR temp
	346	+)))|(% style="width:85px" %)Unix TimeStamp
374	374
	348	+**Interrupt flag & Interrupt level:**
375	375
376		-=== 2.3.2  Distance ===
	350	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
	351	+|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
	352	+**Size(bit)**
	353	+)))|=(% 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**
	354	+|(% 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" %)(((
	355	+Interrupt flag
	356	+)))
377	377
378		-
379		-(((
380		-Get the distance. Flat object range 20mm - 2000mm.
	358	+* (((
	359	+Each data entry is 11 bytes and has the same structure as [[Uplink Payload>>||anchor="H2.3.2UplinkPayload2CFPORT3D2"]], to save airtime and battery, DS20L will send max bytes according to the current DR and Frequency bands.
381	381	)))
382	382
383		-(((
384		-For example, if the data you get from the register is **0x06 0x05**, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** **
	362	+For example, in the US915 band, the max payload for different DR is:
385	385
386		-(% style="color:blue" %)**0605(H) = 1541 (D) = 1541 mm.**
387		-)))
	364	+**a) DR0:** max is 11 bytes so one entry of data
388	388
389		-* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
	366	+**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
390	390
391		-* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
	368	+**c) DR2:** total payload includes 11 entries of data
392	392
393		-=== 2.3.3  Interrupt Pin ===
	370	+**d) DR3:** total payload includes 22 entries of data.
394	394
	372	+If DS20L doesn't have any data in the polling time. It will uplink 11 bytes of 0
395	395
396		-This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3.2SetInterruptMode"]] for the hardware and software set up.
397	397
398		-**Example:**
	375	+**Downlink:**
399	399
400		-0x00: Normal uplink packet.
	377	+0x31 64 CC 68 0C 64 CC 69 74 05
401	401
402		-0x01: Interrupt Uplink Packet.
	379	+[[image:image-20230805144936-2.png||height="113" width="746"]]
403	403
	381	+**Uplink:**
404	404
405		-=== 2.3.4  DS18B20 Temperature sensor ===
	383	+43 FF 0E 10 00 B0 1E 64 CC 68 0C 40 FF 0D DE 00 A8 1E 64 CC 68 29 40 FF 09 92 00 D3 1E 64 CC 68 65 40 FF 02 3A 02 BC 1E 64 CC 68 A1 41 FF 0E 1A 00 A4 1E 64 CC 68 C0 40 FF 0D 2A 00 B8 1E 64 CC 68 E8 40 FF 00 C8 11 6A 1E 64 CC 69 24 40 FF 0E 24 00 AD 1E 64 CC 69 6D
406	406
407	407
408		-This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
	386	+**Parsed Value:**
409	409
410		-**Example**:
	388	+[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
411	411
412		-If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
413	413
414		-If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	391	+[360,176,30,High,True,2023-08-04 02:53:00],
415	415
	393	+[355,168,30,Low,False,2023-08-04 02:53:29],
416	416
	395	+[245,211,30,Low,False,2023-08-04 02:54:29],
417	417
	397	+[57,700,30,Low,False,2023-08-04 02:55:29],
418	418
419		-=== 2.3.5  Sensor Flag ===
	399	+[361,164,30,Low,True,2023-08-04 02:56:00],
420	420
	401	+[337,184,30,Low,False,2023-08-04 02:56:40],
421	421
422		-(((
423		-0x01: Detect Ultrasonic Sensor
424		-)))
	403	+[20,4458,30,Low,False,2023-08-04 02:57:40],
425	425
426		-(((
427		-0x00: No Ultrasonic Sensor
428		-)))
	405	+[362,173,30,Low,False,2023-08-04 02:58:53],
429	429
430	430
431		-=== 2.3.6  Decode payload in The Things Network ===
	408	+**History read from serial port：**
432	432
	410	+[[image:image-20230805145056-3.png]]
433	433
	412	+
	413	+=== 2.3.4 Decode payload in The Things Network ===
	414	+
	415	+
434	434	While using TTN network, you can add the payload format to decode the payload.
435	435
436		-[[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"]]
	418	+[[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"]]
437	437
438		-The payload decoder function for TTN V3 is here:
439	439
440	440	(((
441		-DDS20-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
	422	+The payload decoder function for TTN is here:
442	442	)))
443	443
	425	+(((
	426	+DS20L TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
	427	+)))
444	444
445		-== 2.4  Uplink Interval ==
446	446
	430	+== 2.4 ​Show Data in DataCake IoT Server ==
447	447
448		-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"]]
449	449
450		-
451		-== 2.5  ​Show Data in DataCake IoT Server ==
452		-
453		-
454	454	(((
455	455	[[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:
456	456	)))
...	...	@@ -473,7 +473,7 @@
473	473
474	474	(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
475	475
476		-(% style="color:blue" %)**Step 4**(%%)**: Search the DDS20-LB and add DevEUI.**
	455	+(% style="color:blue" %)**Step 4**(%%)**: Search the DS20L and add DevEUI.**
477	477
478	478	[[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"]]
479	479
...	...	@@ -483,35 +483,30 @@
483	483	[[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"]]
484	484
485	485
	465	+== 2.5 Datalog Feature ==
486	486
487		-== 2.6 Datalog Feature ==
488	488
	468	+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.
489	489
490		-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.
491	491
	471	+=== 2.5.1 Ways to get datalog via LoRaWAN ===
492	492
493		-=== 2.6.1 Ways to get datalog via LoRaWAN ===
494	494
	474	+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.
495	495
496		-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.
497		-
498	498	* (((
499		-a) DDS20-LB will do an ACK check for data records sending to make sure every data arrive server.
	477	+a) DS20L will do an ACK check for data records sending to make sure every data arrive server.
500	500	)))
501	501	* (((
502		-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.
	480	+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.
503	503	)))
504	504
505		-Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
506	506
507		-[[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"]]
	484	+=== 2.5.2 Unix TimeStamp ===
508	508
509	509
510		-=== 2.6.2 Unix TimeStamp ===
	487	+DS20L uses Unix TimeStamp format based on
511	511
512		-
513		-DDS20-LB uses Unix TimeStamp format based on
514		-
515	515	[[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"]]
516	516
517	517	User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
...	...	@@ -524,23 +524,23 @@
524	524	So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
525	525
526	526
527		-=== 2.6.3 Set Device Time ===
	501	+=== 2.5.3 Set Device Time ===
528	528
529	529
530	530	User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
531	531
532		-Once DDS20-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DDS20-LB. If DDS20-LB fails to get the time from the server, DDS20-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
	506	+Once DS20L Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DS20L. If DS20L fails to get the time from the server, DS20L will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
533	533
534	534	(% 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.**
535	535
536	536
537		-=== 2.6.4 Poll sensor value ===
	511	+=== 2.5.4 Poll sensor value ===
538	538
539	539
540	540	Users can poll sensor values based on timestamps. Below is the downlink command.
541	541
542	542	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
543		-|(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
	517	+|(% colspan="4" style="background-color:#4f81bd; color:white; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
544	544	|(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
545	545	|(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
546	546
...	...	@@ -557,24 +557,24 @@
557	557	)))
558	558
559	559	(((
560		-Uplink Internal =5s，means DDS20-LB will send one packet every 5s. range 5~~255s.
	534	+Uplink Internal =5s，means DS20L will send one packet every 5s. range 5~~255s.
561	561	)))
562	562
563	563
564		-== 2.7 Frequency Plans ==
	538	+== 2.6 Frequency Plans ==
565	565
566	566
567		-The DDS20-LB uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
	541	+The DS20L uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
568	568
569	569	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
570	570
571	571
572		-= 3. Configure DDS20-LB =
	546	+3. Configure DS20L
573	573
574	574	== 3.1 Configure Methods ==
575	575
576	576
577		-DDS20-LB supports below configure method:
	551	+DS20L supports below configure method:
578	578
579	579	* AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
580	580
...	...	@@ -582,6 +582,8 @@
582	582
583	583	* LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
584	584
	559	+
	560	+
585	585	== 3.2 General Commands ==
586	586
587	587
...	...	@@ -596,10 +596,10 @@
596	596	[[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/]]
597	597
598	598
599		-== 3.3 Commands special design for DDS20-LB ==
	575	+== 3.3 Commands special design for DS20L ==
600	600
601	601
602		-These commands only valid for DDS20-LB, as below:
	578	+These commands only valid for DS20L, as below:
603	603
604	604
605	605	=== 3.3.1 Set Transmit Interval Time ===
...	...	@@ -614,7 +614,7 @@
614	614	)))
615	615
616	616	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
617		-|=(% 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**
	593	+|=(% 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**
618	618	|(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
619	619	30000
620	620	OK
...	...	@@ -642,25 +642,32 @@
642	642	)))
643	643	* (((
644	644	Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
	621	+
	622	+
	623	+
645	645	)))
646	646
647	647	=== 3.3.2 Set Interrupt Mode ===
648	648
649	649
650		-Feature, Set Interrupt mode for PA8 of pin.
	629	+Feature, Set Interrupt mode for pin of GPIO_EXTI.
651	651
652		-When AT+INTMOD=0 is set, PA8 is used as a digital input port.
	631	+When AT+INTMOD=0 is set, GPIO_EXTI is used as a digital input port.
653	653
654	654	(% style="color:blue" %)**AT Command: AT+INTMOD**
655	655
656	656	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
657		-|=(% 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**
	636	+|=(% 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**
658	658	|(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
659	659	0
660	660	OK
661	661	the mode is 0 =Disable Interrupt
662	662	)))
663		-|(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
	642	+|(% style="width:154px" %)(((
	643	+AT+INTMOD=2
	644	+
	645	+(default)
	646	+)))|(% style="width:196px" %)(((
664	664	Set Transmit Interval
665	665	0. (Disable Interrupt),
666	666	~1. (Trigger by rising and falling edge)
...	...	@@ -678,10 +678,12 @@
678	678
679	679	* Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
680	680
	664	+
	665	+
681	681	= 4. Battery & Power Consumption =
682	682
683	683
684		-DDS20-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
	669	+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.
685	685
686	686	[[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
687	687
...	...	@@ -690,7 +690,7 @@
690	690
691	691
692	692	(% class="wikigeneratedid" %)
693		-User can change firmware DDS20-LB to:
	678	+User can change firmware DS20L to:
694	694
695	695	* Change Frequency band/ region.
696	696
...	...	@@ -698,49 +698,50 @@
698	698
699	699	* Fix bugs.
700	700
701		-Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/ph4uyz0rchflrnw/AADr1f_5Sg30804NItpfOQbla?dl=0]]**
	686	+Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/zqv1vt3komgp4tu/AAC33PnXIcWOVl_UXBEAeT_xa?dl=0]]**
702	702
703	703	Methods to Update Firmware:
704	704
705		-* (Recommanded way) OTA firmware update via wireless:  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]
	690	+* (Recommanded way) OTA firmware update via wireless:  **[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]**
706	706
707	707	* 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]]**.
708	708
709		-= 6. FAQ =
710	710
711		-== 6.1  What is the frequency plan for DDS20-LB? ==
712	712
	696	+= 6. FAQ =
713	713
714		-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"]]
	698	+== 6.1 What is the frequency plan for DS20L? ==
715	715
716	716
717		-== 6.2  Can I use DDS20-LB in condensation environment? ==
	701	+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"]]
718	718
719	719
720		-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.
	704	+= 7. Trouble Shooting =
721	721
	706	+== 7.1 AT Command input doesn't work ==
722	722
723		-= 7.  Trouble Shooting =
724	724
725		-== 7.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
	709	+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.
726	726
727	727
728		-It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	712	+== 7.2 Significant error between the output distant value of LiDAR and actual distance ==
729	729
730	730
731		-== 7.2  AT Command input doesn't work ==
	715	+(((
	716	+(% 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.)
	717	+)))
732	732
	719	+(((
	720	+(% style="color:red" %)**Troubleshooting**(%%): Please avoid use of this product under such circumstance in practice.
	721	+)))
733	733
734		-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.
735	735
736		-
737		-== 7.3  Why i always see 0x0000 or 0 for the distance value? ==
738		-
739		-
740	740	(((
741		-LDDS20 has a strict [[**installation requirement**>>||anchor="H1.5A0InstallLDDS20"]]. Please make sure the installation method exactly follows up with the installation requirement. Otherwise, the reading might be always 0x00.
	725	+(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
	726	+)))
742	742
743		-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.
	728	+(((
	729	+(% style="color:red" %)**Troubleshooting**(%%): please use dry dust-free cloth to gently remove the foreign matter.
744	744	)))
745	745
746	746
...	...	@@ -747,7 +747,7 @@
747	747	= 8. Order Info =
748	748
749	749
750		-Part Number: (% style="color:blue" %)**DDS20-LB-XXX**
	736	+Part Number: (% style="color:blue" %)**DS20L-XXX**
751	751
752	752	(% style="color:red" %)**XXX**(%%): **The default frequency band**
753	753
...	...	@@ -774,7 +774,7 @@
774	774
775	775	(% style="color:#037691" %)**Package Includes**:
776	776
777		-* DDS20-LB LoRaWAN Ultrasonic Liquid Level Sensor x 1
	763	+* DS20L LoRaWAN Smart Distance Detector x 1
778	778
779	779	(% style="color:#037691" %)**Dimension and weight**:
780	780

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