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

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1		-LDS12-LB_LoRaWAN_LiDAR_ToF_Distance_Sensor_User_Manual
	1	+DS20L -- LoRaWAN Smart Distance Detector User Manual

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1	1	(% style="text-align:center" %)
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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. DS20L can measure range between 3cm ~~ 200cm.
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	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.
	35	+[[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
	41	+* LoRaWAN Class A protocol
	42	+* LiDAR distance detector, range 3 ~~ 200cm
	43	+* 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
	45	+* Remotely configure parameters via LoRaWAN Downlink
	46	+* Alarm & Counting mode
	47	+* Firmware upgradable via program port or LoRa protocol
	48	+* Built-in 2400mAh battery or power by external power source
59	59
60		-
61		-
62	62	== 1.3 Specification ==
63	63
64	64
65		-(% style="color:#037691" %)**Common DC Characteristics:**
	53	+(% style="color:#037691" %)**LiDAR Sensor:**
66	66
67		-* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
68		-* Operating Temperature: -40 ~~ 85°C
	55	+* Operation Temperature: -40 ~~ 80 °C
	56	+* Operation Humidity: 0~~99.9%RH (no Dew)
	57	+* Storage Temperature: -10 ~~ 45°C
	58	+* Measure Range: 3cm~~200cm @ 90% reflectivity
	59	+* Accuracy: ±2cm @ (3cm~~100cm); ±5% @ (100~~200cm)
	60	+* ToF FoV: ±9°, Total 18°
	61	+* Light source: VCSEL
69	69
70		-(% style="color:#037691" %)**LoRa Spec:**
	63	+== 1.4 Power Consumption ==
71	71
72		-* Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
73		-* Max +22 dBm constant RF output vs.
74		-* RX sensitivity: down to -139 dBm.
75		-* Excellent blocking immunity
76	76
77		-(% style="color:#037691" %)**Battery:**
	66	+(% style="color:#037691" %)**Battery Power Mode:**
78	78
79		-* Li/SOCI2 un-chargeable battery
80		-* Capacity: 8500mAh
81		-* Self-Discharge: <1% / Year @ 25°C
82		-* Max continuously current: 130mA
83		-* Max boost current: 2A, 1 second
	68	+* Idle: 0.003 mA @ 3.3v
	69	+* Max : 360 mA
84	84
85		-(% style="color:#037691" %)**Power Consumption**
	71	+(% style="color:#037691" %)**Continuously mode**:
86	86
87		-* Sleep Mode: 5uA @ 3.3v
88		-* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
	73	+* Idle: 21 mA @ 3.3v
	74	+* Max : 360 mA
89	89
	76	+= 2. Configure DS20L to connect to LoRaWAN network =
90	90
	78	+== 2.1 How it works ==
91	91
92		-== 1.4 Suitable Container & Liquid ==
93	93
	81	+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.
94	94
95		-* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
96		-* Container shape is regular, and surface is smooth.
97		-* Container Thickness:
98		-** Pure metal material.  2~~8mm, best is 3~~5mm
99		-** Pure non metal material: <10 mm
100		-* Pure liquid without irregular deposition.
	83	+(% style="display:none" %) (%%)
101	101
	85	+== 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
102	102
103	103
104		-(% style="display:none" %)
	88	+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.
105	105
106		-== 1.5 Install DDS20-LB ==
	90	+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" %)
107	107
	92	+[[image:image-20231110102635-5.png||height="402" width="807"]](% style="display:none" %)
108	108
109		-(% style="color:blue" %)**Step 1**(%%):  ** Choose the installation point.**
	94	+(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DS20L.
110	110
111		-DDS20-LB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
	96	+Each DS20L is shipped with a sticker with the default device EUI as below:
112	112
113		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615091045-3.png?rev=1.1||alt="image-20220615091045-3.png"]]
	98	+[[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
114	114
115	115
116		-(((
117		-(% style="color:blue" %)**Step 2**(%%):  **Polish the installation point.**
118		-)))
	101	+You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
119	119
120		-(((
121		-For Metal Surface with paint, it is important to polish the surface, first use crude sand paper to polish the paint level , then use exquisite sand paper to polish the metal level to make it shine & smooth.
122		-)))
123	123
124		-[[image:image-20230613143052-5.png]]
	104	+(% style="color:blue" %)**Register the device**
125	125
	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/1654935135620-998.png?rev=1.1||alt="1654935135620-998.png"]]
126	126
127		-No polish needed if the container is shine metal surface without paint or non-metal container.
128	128
129		-[[image:image-20230613143125-6.png]]
	109	+(% style="color:blue" %)**Add APP EUI and DEV EUI**
130	130
	111	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-4.png?width=753&height=551&rev=1.1||alt="图片-20220611161308-4.png"]]
131	131
132		-(((
133		-(% style="color:blue" %)**Step3:   **(%%)**Test the installation point.**
134		-)))
135	135
136		-(((
137		-Power on DDS20-LB, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
138		-)))
	114	+(% style="color:blue" %)**Add APP EUI in the application**
139	139
140		-(((
141		-It is necessary to put the coupling paste between the sensor and the container, otherwise DDS20-LB won't detect the liquid level.
142		-)))
143	143
144		-(((
145		-After paste the DDS20-LB well, power on DDS20-LB. In the first 30 seconds of booting, device will check the sensors status and BLUE LED will show the status as below. After 30 seconds, BLUE LED will be off to save battery life.
146		-)))
	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-20220611161308-5.png?width=742&height=601&rev=1.1||alt="图片-20220611161308-5.png"]]
147	147
148	148
149		-(((
150		-(% style="color:blue" %)**LED Status:**
151		-)))
	120	+(% style="color:blue" %)**Add APP KEY**
152	152
153		-* (((
154		-**Onboard LED**: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
155		-)))
	122	+[[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"]]
156	156
157		-* (((
158		-(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** always ON**(%%): Sensor is power on but doesn't detect liquid. There is problem in installation point.
159		-)))
160		-* (((
161		-(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** slowly blinking**(%%): Sensor detects Liquid Level, The installation point is good.
162		-)))
163	163
164		-(((
165		-LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
166		-)))
	125	+(% style="color:blue" %)**Step 2:**(%%) Activate on DS20L
167	167
	127	+[[image:image-20231128133704-1.png||height="189" width="441"]]
168	168
169		-(((
170		-(% style="color:red" %)**Note :**(%%)** (% style="color:blue" %)Ultrasonic coupling paste(%%)**(% style="color:blue" %) (%%) is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
171		-)))
	129	+Press the button for 5 seconds to activate the DS20L.
172	172
	131	+(% 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		-(% style="color:blue" %)**Step4:   **(%%)**Install use Epoxy ab glue.**
176		-)))
	133	+After join success, it will start to upload messages to TTN and you can see the messages in the panel.
177	177
178		-(((
179		-Prepare Eproxy AB glue.
180		-)))
181	181
182		-(((
183		-Put Eproxy AB glue in the sensor and press it hard on the container installation point.
184		-)))
	136	+== 2.3 ​Uplink Payload ==
185	185
186		-(((
187		-Reset DDS20-LB and see if the BLUE LED is slowly blinking.
188		-)))
	138	+=== 2.3.1 Device Status, FPORT~=5 ===
189	189
190		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615091045-8.png?width=341&height=203&rev=1.1||alt="image-20220615091045-8.png"]] [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615091045-9.png?width=284&height=200&rev=1.1||alt="image-20220615091045-9.png"]]
191	191
	141	+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 :**
	143	+The Payload format is as below.
195	195
196		-(% style="color:red" %)**1:**(%%)** (% style="color:blue" %)Eproxy AB glue(%%)** needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
197		-)))
	145	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	146	+|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
	147	+**Size(bytes)**
	148	+)))|=(% 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**
	149	+|(% 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
198	198
199		-(((
200		-(% style="color:red" %)**2:**(%%)** (% style="color:blue" %)Eproxy AB glue(%%)** is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
201		-)))
	151	+Example parse in TTNv3
202	202
	153	+[[image:1701149922873-259.png]]
203	203
204		-== 1.6 Applications ==
	155	+(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x21
205	205
	157	+(% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
206	206
207		-* Smart liquid control solution
	159	+(% style="color:blue" %)**Frequency Band**:
208	208
209		-* Smart liquefied gas solution
	161	+0x01: EU868
210	210
	163	+0x02: US915
211	211
	165	+0x03: IN865
212	212
213		-== 1.7 Precautions ==
	167	+0x04: AU915
214	214
	169	+0x05: KZ865
215	215
216		-* At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
	171	+0x06: RU864
217	217
218		-* For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
	173	+0x07: AS923
219	219
220		-* When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable.
	175	+0x08: AS923-1
221	221
	177	+0x09: AS923-2
222	222
223		-(% style="display:none" %)
	179	+0x0a: AS923-3
224	224
225		-== 1.8 Sleep mode and working mode ==
	181	+0x0b: CN470
226	226
	183	+0x0c: EU433
227	227
228		-(% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
	185	+0x0d: KR920
229	229
230		-(% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
	187	+0x0e: MA869
231	231
	189	+(% style="color:blue" %)**Sub-Band**:
232	232
233		-== 1.9 Button & LEDs ==
	191	+AU915 and US915:value 0x00 ~~ 0x08
234	234
	193	+CN470: value 0x0B ~~ 0x0C
235	235
236		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
	195	+Other Bands: Always 0x00
237	237
	197	+(% style="color:blue" %)**Battery Info**:
238	238
239		-(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
240		-|=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)**Action**
241		-|(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
242		-If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
243		-Meanwhile, BLE module will be active and user can connect via BLE to configure device.
244		-)))
245		-|(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
246		-(% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
247		-(% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
248		-Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.
249		-)))
250		-|(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
	199	+Check the battery voltage.
251	251
	201	+Ex1: 0x0B45 = 2885mV
252	252
	203	+Ex2: 0x0B49 = 2889mV
253	253
254		-== 1.10 BLE connection ==
255	255
	206	+=== 2.3.2 Uplink Payload, FPORT~=2 ===
256	256
257		-DDS20-LB support BLE remote configure.
258	258
259		-BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
	209	+(((
	210	+DS20L will send this uplink **after** Device Status once join the LoRaWAN network successfully. And DS20L will:
260	260
261		-* Press button to send an uplink
262		-* Press button to active device.
263		-* Device Power on or reset.
	212	+periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
264	264
265		-If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	214	+Uplink Payload totals 11 bytes.
	215	+)))
266	266
	217	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	218	+|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
	219	+**Size(bytes)**
	220	+)))|=(% 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**
	221	+|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((
	222	+[[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]
	223	+)))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((
	224	+[[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]
	225	+)))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((
	226	+[[Message Type>>||anchor="HMessageType"]]
	227	+)))
267	267
268		-== 1.11 Pin Definitions ==
	229	+[[image:image-20230805104104-2.png||height="136" width="754"]]
269	269
270		-[[image:image-20230523174230-1.png]]
271	271
	232	+==== (% style="color:blue" %)**Battery Info**(%%) ====
272	272
273		-== 1.12 Mechanical ==
274	274
	235	+Check the battery voltage for DS20L.
275	275
276		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
	237	+Ex1: 0x0B45 = 2885mV
277	277
	239	+Ex2: 0x0B49 = 2889mV
278	278
279		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
280	280
	242	+==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
281	281
282		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
283	283
	245	+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		-(% style="color:blue" %)**Probe Mechanical:**
286	286
287		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615090910-1.png?rev=1.1||alt="image-20220615090910-1.png"]]
	248	+**Example**:
288	288
	250	+If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
289	289
290		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615090910-2.png?rev=1.1||alt="image-20220615090910-2.png"]]
	252	+If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
291	291
292	292
293		-= 2. Configure DDS20-LB to connect to LoRaWAN network =
	255	+==== (% style="color:blue" %)**Distance**(%%) ====
294	294
295		-== 2.1 How it works ==
296	296
	258	+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.
297	297
298		-The DDS20-LB is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the DDS20-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
299	299
300		-(% style="display:none" %) (%%)
	261	+**Example**:
301	301
302		-== 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
	263	+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	304
305		-Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
	266	+==== (% style="color:blue" %)**Distance signal strength**(%%) ====
306	306
307		-The LPS8v2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
308	308
309		-[[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %)
	269	+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.
310	310
311	311
312		-(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS20-LB.
	272	+**Example**:
313	313
314		-Each DDS20-LB is shipped with a sticker with the default device EUI as below:
	274	+If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
315	315
316		-[[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
	276	+Customers can judge whether they need to adjust the environment based on the signal strength.
317	317
318	318
319		-You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	279	+**1) When the sensor detects valid data:**
320	320
	281	+[[image:image-20230805155335-1.png||height="145" width="724"]]
321	321
322		-(% style="color:blue" %)**Register the device**
323	323
324		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/1654935135620-998.png?rev=1.1||alt="1654935135620-998.png"]]
	284	+**2) When the sensor detects invalid data:**
325	325
	286	+[[image:image-20230805155428-2.png||height="139" width="726"]]
326	326
327		-(% style="color:blue" %)**Add APP EUI and DEV EUI**
328	328
329		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-4.png?width=753&height=551&rev=1.1||alt="图片-20220611161308-4.png"]]
	289	+**3) When the sensor is not connected:**
330	330
	291	+[[image:image-20230805155515-3.png||height="143" width="725"]]
331	331
332		-(% style="color:blue" %)**Add APP EUI in the application**
333	333
	294	+==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
334	334
335		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-5.png?width=742&height=601&rev=1.1||alt="图片-20220611161308-5.png"]]
336	336
	297	+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		-(% style="color:blue" %)**Add APP KEY**
	299	+Note: The Internet Pin is a separate pin in the screw terminal. See pin mapping of GPIO_EXTI .
339	339
340		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-6.png?width=744&height=485&rev=1.1||alt="图片-20220611161308-6.png"]]
	301	+**Example:**
341	341
	303	+If byte[0]&0x01=0x00 : Normal uplink packet.
342	342
343		-(% style="color:blue" %)**Step 2:**(%%) Activate on DDS20-LB
	305	+If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
344	344
345	345
346		-Press the button for 5 seconds to activate the DDS20-LB.
	308	+==== (% style="color:blue" %)**LiDAR temp**(%%) ====
347	347
348		-(% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
349	349
350		-After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	311	+Characterize the internal temperature value of the sensor.
351	351
	313	+**Example: **
	314	+If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
	315	+If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
352	352
353		-== 2.3  ​Uplink Payload ==
354	354
	318	+==== (% style="color:blue" %)**Message Type**(%%) ====
355	355
	320	+
356	356	(((
357		-DDS20-LB will uplink payload via LoRaWAN with below payload format:
	322	+For a normal uplink payload, the message type is always 0x01.
358	358	)))
359	359
360	360	(((
361		-Uplink payload includes in total 8 bytes.
	326	+Valid Message Type:
362	362	)))
363	363
364		-(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
365		-|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
366		-**Size(bytes)**
367		-)))|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="background-color:#D9E2F3;color:#0070C0" %)1|=(% style="background-color:#D9E2F3;color:#0070C0" %)2|=(% style="background-color:#D9E2F3;color:#0070C0" %)**1**
368		-|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
369		-[[Distance>>||anchor="H2.3.2A0Distance"]]
370		-(unit: mm)
371		-)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
372		-[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
373		-)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
	329	+(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
	330	+|=(% 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**
	331	+|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload
	332	+|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload
374	374
375		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/1654850511545-399.png?rev=1.1||alt="1654850511545-399.png"]]
	334	+[[image:image-20230805150315-4.png||height="233" width="723"]]
376	376
377	377
378		-=== 2.3.1  Battery Info ===
	337	+=== 2.3.3 Historical measuring distance, FPORT~=3 ===
379	379
380	380
381		-Check the battery voltage for DDS20-LB.
	340	+DS20L stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
382	382
383		-Ex1: 0x0B45 = 2885mV
	342	+The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
384	384
385		-Ex2: 0x0B49 = 2889mV
	344	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	345	+|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
	346	+**Size(bytes)**
	347	+)))|=(% 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
	348	+|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)Interrupt flag & Interrupt_level|(% style="width:62.5px" %)(((
	349	+Reserve(0xFF)
	350	+)))|Distance|Distance signal strength|(% style="width:88px" %)(((
	351	+LiDAR temp
	352	+)))|(% style="width:85px" %)Unix TimeStamp
386	386
	354	+**Interrupt flag & Interrupt level:**
387	387
388		-=== 2.3.2  Distance ===
	356	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
	357	+|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
	358	+**Size(bit)**
	359	+)))|=(% 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**
	360	+|(% 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" %)(((
	361	+Interrupt flag
	362	+)))
389	389
390		-
391		-(((
392		-Get the distance. Flat object range 20mm - 2000mm.
	364	+* (((
	365	+Each data entry is 11 bytes and has the same structure as [[Uplink Payload>>||anchor="H2.3.2UplinkPayload2CFPORT3D2"]], to save airtime and battery, DS20L will send max bytes according to the current DR and Frequency bands.
393	393	)))
394	394
395		-(((
396		-For example, if the data you get from the register is **0x06 0x05**, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** **
	368	+For example, in the US915 band, the max payload for different DR is:
397	397
398		-(% style="color:blue" %)**0605(H) = 1541 (D) = 1541 mm.**
399		-)))
	370	+**a) DR0:** max is 11 bytes so one entry of data
400	400
401		-* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
	372	+**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
402	402
403		-* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
	374	+**c) DR2:** total payload includes 11 entries of data
404	404
	376	+**d) DR3:** total payload includes 22 entries of data.
405	405
	378	+If DS20L doesn't have any data in the polling time. It will uplink 11 bytes of 0
406	406
407		-=== 2.3.3  Interrupt Pin ===
408	408
	381	+**Downlink:**
409	409
410		-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.
	383	+0x31 64 CC 68 0C 64 CC 69 74 05
411	411
412		-**Example:**
	385	+[[image:image-20230805144936-2.png||height="113" width="746"]]
413	413
414		-0x00: Normal uplink packet.
	387	+**Uplink:**
415	415
416		-0x01: Interrupt Uplink Packet.
	389	+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
417	417
418	418
419		-=== 2.3.4  DS18B20 Temperature sensor ===
	392	+**Parsed Value:**
420	420
	394	+[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
421	421
422		-This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
423	423
424		-**Example**:
	397	+[360,176,30,High,True,2023-08-04 02:53:00],
425	425
426		-If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
	399	+[355,168,30,Low,False,2023-08-04 02:53:29],
427	427
428		-If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	401	+[245,211,30,Low,False,2023-08-04 02:54:29],
429	429
	403	+[57,700,30,Low,False,2023-08-04 02:55:29],
430	430
431		-=== 2.3.5  Sensor Flag ===
	405	+[361,164,30,Low,True,2023-08-04 02:56:00],
432	432
	407	+[337,184,30,Low,False,2023-08-04 02:56:40],
433	433
434		-(((
435		-0x01: Detect Ultrasonic Sensor
436		-)))
	409	+[20,4458,30,Low,False,2023-08-04 02:57:40],
437	437
438		-(((
439		-0x00: No Ultrasonic Sensor
440		-)))
	411	+[362,173,30,Low,False,2023-08-04 02:58:53],
441	441
442	442
443		-=== 2.3.6  Decode payload in The Things Network ===
	414	+**History read from serial port：**
444	444
	416	+[[image:image-20230805145056-3.png]]
445	445
	418	+
	419	+=== 2.3.4 Decode payload in The Things Network ===
	420	+
	421	+
446	446	While using TTN network, you can add the payload format to decode the payload.
447	447
448		-[[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"]]
	424	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654592762713-715.png?rev=1.1||alt="1654592762713-715.png"]]
449	449
450		-The payload decoder function for TTN V3 is here:
451	451
452	452	(((
453		-DDS20-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
	428	+The payload decoder function for TTN is here:
454	454	)))
455	455
	431	+(((
	432	+DS20L TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
	433	+)))
456	456
457		-== 2.4  Uplink Interval ==
458	458
	436	+== 2.4 ​Show Data in DataCake IoT Server ==
459	459
460		-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		-
463		-== 2.5  ​Show Data in DataCake IoT Server ==
464		-
465		-
466	466	(((
467	467	[[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:
468	468	)))
...	...	@@ -485,7 +485,7 @@
485	485
486	486	(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
487	487
488		-(% style="color:blue" %)**Step 4**(%%)**: Search the DDS20-LB and add DevEUI.**
	461	+(% style="color:blue" %)**Step 4**(%%)**: Search the DS20L and add DevEUI.**
489	489
490	490	[[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"]]
491	491
...	...	@@ -495,97 +495,20 @@
495	495	[[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"]]
496	496
497	497
498		-== 2.6 Datalog Feature ==
	471	+== 2.5 Frequency Plans ==
499	499
500	500
501		-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.
	474	+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.
502	502
503		-
504		-=== 2.6.1 Ways to get datalog via LoRaWAN ===
505		-
506		-
507		-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.
508		-
509		-* (((
510		-a) DDS20-LB will do an ACK check for data records sending to make sure every data arrive server.
511		-)))
512		-* (((
513		-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.
514		-)))
515		-
516		-Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
517		-
518		-[[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"]]
519		-
520		-
521		-=== 2.6.2 Unix TimeStamp ===
522		-
523		-
524		-DDS20-LB uses Unix TimeStamp format based on
525		-
526		-[[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"]]
527		-
528		-User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
529		-
530		-Below is the converter example
531		-
532		-[[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-20220523001219-12.png?width=720&height=298&rev=1.1||alt="图片-20220523001219-12.png" height="298" width="720"]]
533		-
534		-
535		-So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
536		-
537		-
538		-=== 2.6.3 Set Device Time ===
539		-
540		-
541		-User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
542		-
543		-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).
544		-
545		-(% 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.**
546		-
547		-
548		-=== 2.6.4 Poll sensor value ===
549		-
550		-
551		-Users can poll sensor values based on timestamps. Below is the downlink command.
552		-
553		-(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
554		-|(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
555		-|(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
556		-|(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
557		-
558		-(((
559		-Timestamp start and Timestamp end-use Unix TimeStamp format as mentioned above. Devices will reply with all data logs during this period, using the uplink interval.
560		-)))
561		-
562		-(((
563		-For example, downlink command [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/CPL01%20LoRaWAN%20Outdoor%20PulseContact%20%20Sensor%20Manual/WebHome/image-20220518162852-1.png?rev=1.1||alt="image-20220518162852-1.png"]]
564		-)))
565		-
566		-(((
567		-Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
568		-)))
569		-
570		-(((
571		-Uplink Internal =5s，means DDS20-LB will send one packet every 5s. range 5~~255s.
572		-)))
573		-
574		-
575		-== 2.7 Frequency Plans ==
576		-
577		-
578		-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.
579		-
580	580	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
581	581
582	582
583		-= 3. Configure DDS20-LB =
	479	+= 3. Configure DS20L =
584	584
585	585	== 3.1 Configure Methods ==
586	586
587	587
588		-DDS20-LB supports below configure method:
	484	+DS20L supports below configure method:
589	589
590	590	* AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
591	591
...	...	@@ -593,8 +593,6 @@
593	593
594	594	* LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
595	595
596		-
597		-
598	598	== 3.2 General Commands ==
599	599
600	600
...	...	@@ -609,10 +609,10 @@
609	609	[[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/]]
610	610
611	611
612		-== 3.3 Commands special design for DDS20-LB ==
	506	+== 3.3 Commands special design for DS20L ==
613	613
614	614
615		-These commands only valid for DDS20-LB, as below:
	509	+These commands only valid for DS20L, as below:
616	616
617	617
618	618	=== 3.3.1 Set Transmit Interval Time ===
...	...	@@ -627,7 +627,7 @@
627	627	)))
628	628
629	629	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
630		-|=(% 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**
	524	+|=(% 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**
631	631	|(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
632	632	30000
633	633	OK
...	...	@@ -654,29 +654,31 @@
654	654	Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
655	655	)))
656	656	* (((
657		-Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
658		-
659		-
660		-
	551	+Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
661	661	)))
662	662
	554	+
663	663	=== 3.3.2 Set Interrupt Mode ===
664	664
665	665
666		-Feature, Set Interrupt mode for PA8 of pin.
	558	+Feature, Set Interrupt mode for pin of GPIO_EXTI.
667	667
668		-When AT+INTMOD=0 is set, PA8 is used as a digital input port.
	560	+When AT+INTMOD=0 is set, GPIO_EXTI is used as a digital input port.
669	669
670	670	(% style="color:blue" %)**AT Command: AT+INTMOD**
671	671
672	672	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
673		-|=(% 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**
	565	+|=(% 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**
674	674	|(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
675	675	0
676	676	OK
677	677	the mode is 0 =Disable Interrupt
678	678	)))
679		-|(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
	571	+|(% style="width:154px" %)(((
	572	+AT+INTMOD=3
	573	+
	574	+(default)
	575	+)))|(% style="width:196px" %)(((
680	680	Set Transmit Interval
681	681	0. (Disable Interrupt),
682	682	~1. (Trigger by rising and falling edge)
...	...	@@ -696,10 +696,76 @@
696	696
697	697
698	698
	595	+== 3.3.3 Set work mode ==
	596	+
	597	+
	598	+Feature: Switch working mode
	599	+
	600	+(% style="color:blue" %)**AT Command: AT+MOD**
	601	+
	602	+(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:463px" %)
	603	+|=(% style="width: 162px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 193px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 108px;background-color:#4F81BD;color:white" %)**Response**
	604	+|(% style="width:162px" %)AT+MOD=?|(% style="width:191px" %)Get the current working mode.|(% style="width:106px" %)OK
	605	+|(% style="width:162px" %)AT+MOD=1|(% style="width:191px" %)Set the working mode to Regular measurements.|(% style="width:106px" %)(((
	606	+OK
	607	+
	608	+Attention:Take effect after ATZ
	609	+)))
	610	+
	611	+(% style="color:blue" %)**Downlink Command:**
	612	+
	613	+* **Example: **0x0A00  ~/~/  Same as AT+MOD=0
	614	+
	615	+* **Example:** 0x0A01  ~/~/  Same as AT+MOD=1
	616	+
	617	+
	618	+=== 3.3.4 Set threshold and threshold mode ===
	619	+
	620	+
	621	+Feature, Set threshold and threshold mode
	622	+
	623	+When **AT+DOL=0,0,0,0,400** is set, No threshold is used, the sampling time is 400ms.
	624	+
	625	+**AT Command: AT+DOL**
	626	+
	627	+(% border="1" cellspacing="4" style="width:571.818px" %)
	628	+|(% style="width:172px" %)**Command Example**|(% style="width:279px" %)**Function**|(% style="width:118px" %)**Response**
	629	+|(% style="width:172px" %)AT+ DOL =?|(% style="width:279px" %)Get the current threshold mode and sampling time|(% style="width:118px" %)(((
	630	+0,0,0,0,400
	631	+
	632	+OK
	633	+)))
	634	+|(% style="width:172px" %)AT+ DOL =1,1800,100,0,400|(% style="width:279px" %)Set only the upper and lower thresholds|(% style="width:118px" %)OK
	635	+
	636	+
	637	+(% border="1" cellspacing="4" style="width:668.818px" %)
	638	+|(% rowspan="11" style="width:166px" %)**AT+DOL=5,1800,0,0,400**|(% rowspan="6" style="width:226px" %)The first bit sets the limit mode|(% style="width:251px" %)0:Do not use upper and lower limits
	639	+|(% style="width:251px" %)1:Use upper and lower limits
	640	+|(% style="width:251px" %)2:Less than the lower limit
	641	+|(% style="width:251px" %)3:Greater than the lower limit
	642	+|(% style="width:251px" %)4:Less than the upper limit
	643	+|(% style="width:251px" %)5: Greater than the upper limit
	644	+|(% style="width:226px" %)The second bit sets the upper limit value|(% style="width:251px" %)3~~2000MM
	645	+|(% style="width:226px" %)The third bit sets the lower limit value|(% style="width:251px" %)3~~2000MM
	646	+|(% rowspan="2" style="width:226px" %)The fourth bit sets the over-limit alarm or person or object count.|(% style="width:251px" %)0 Over-limit alarm, DO output is high
	647	+|(% style="width:251px" %)1 Person or object counting statistics
	648	+|(% style="width:226px" %)The fifth bit sets the sampling time|(% style="width:251px" %)(((
	649	+0~~10000ms
	650	+
	651	+
	652	+)))
	653	+
	654	+**Downlink Command: 0x07**
	655	+
	656	+Format: Command Code (0x07) followed by 9bytes.
	657	+
	658	+* Example 0: Downlink Payload: 070000000000000190  **~-~-->**  AT+MOD=0,0,0,0,400
	659	+* Example 1: Downlink Payload: 070107080064000190  **~-~-->**  AT+MOD=1,1800,100,0,400
	660	+
699	699	= 4. Battery & Power Consumption =
700	700
701	701
702		-DDS20-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
	664	+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.
703	703
704	704	[[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
705	705
...	...	@@ -708,7 +708,7 @@
708	708
709	709
710	710	(% class="wikigeneratedid" %)
711		-User can change firmware DDS20-LB to:
	673	+User can change firmware DS20L to:
712	712
713	713	* Change Frequency band/ region.
714	714
...	...	@@ -716,7 +716,7 @@
716	716
717	717	* Fix bugs.
718	718
719		-Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/ph4uyz0rchflrnw/AADr1f_5Sg30804NItpfOQbla?dl=0]]**
	681	+Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/zqv1vt3komgp4tu/AAC33PnXIcWOVl_UXBEAeT_xa?dl=0]]**
720	720
721	721	Methods to Update Firmware:
722	722
...	...	@@ -724,43 +724,40 @@
724	724
725	725	* 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]]**.
726	726
727		-
728		-
729	729	= 6. FAQ =
730	730
731		-== 6.1  What is the frequency plan for DDS20-LB? ==
	691	+== 6.1 What is the frequency plan for DS20L? ==
732	732
733	733
734		-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"]]
	694	+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"]]
735	735
736	736
737		-== 6.2  Can I use DDS20-LB in condensation environment? ==
	697	+= 7. Trouble Shooting =
738	738
	699	+== 7.1 AT Command input doesn't work ==
739	739
740		-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.
741	741
	702	+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.
742	742
743		-= 7.  Trouble Shooting =
744	744
745		-== 7.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
	705	+== 7.2 Significant error between the output distant value of LiDAR and actual distance ==
746	746
747	747
748		-It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	708	+(((
	709	+(% 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.)
	710	+)))
749	749
	712	+(((
	713	+(% style="color:red" %)**Troubleshooting**(%%): Please avoid use of this product under such circumstance in practice.
	714	+)))
750	750
751		-== 7.2  AT Command input doesn't work ==
752	752
753		-
754		-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.
755		-
756		-
757		-== 7.3  Why i always see 0x0000 or 0 for the distance value? ==
758		-
759		-
760	760	(((
761		-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.
	718	+(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
	719	+)))
762	762
763		-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.
	721	+(((
	722	+(% style="color:red" %)**Troubleshooting**(%%): please use dry dust-free cloth to gently remove the foreign matter.
764	764	)))
765	765
766	766
...	...	@@ -767,7 +767,7 @@
767	767	= 8. Order Info =
768	768
769	769
770		-Part Number: (% style="color:blue" %)**DDS20-LB-XXX**
	729	+Part Number: (% style="color:blue" %)**DS20L-XXX**
771	771
772	772	(% style="color:red" %)**XXX**(%%): **The default frequency band**
773	773
...	...	@@ -787,14 +787,12 @@
787	787
788	788	* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
789	789
790		-
791		-
792	792	= 9. ​Packing Info =
793	793
794	794
795	795	(% style="color:#037691" %)**Package Includes**:
796	796
797		-* DDS20-LB LoRaWAN Ultrasonic Liquid Level Sensor x 1
	754	+* DS20L LoRaWAN Smart Distance Detector x 1
798	798
799	799	(% style="color:#037691" %)**Dimension and weight**:
800	800
...	...	@@ -806,8 +806,6 @@
806	806
807	807	* Weight / pcs : g
808	808
809		-
810		-
811	811	= 10. Support =
812	812
813	813

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