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

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1		-DDS20-LB -- LoRaWAN Ultrasonic Liquid Level 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
	50	+== 1.3 Specification ==
60	60
61	61
62		-== 1.3 Specification ==
	53	+(% style="color:#037691" %)**LiDAR Sensor:**
63	63
	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
64	64
65		-(% style="color:#037691" %)**Common DC Characteristics:**
	63	+== 1.4 Power Consumption ==
66	66
67		-* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
68		-* Operating Temperature: -40 ~~ 85°C
69	69
70		-(% style="color:#037691" %)**LoRa Spec:**
	66	+(% style="color:#037691" %)**Battery Power Mode:**
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
	68	+* Idle: 0.003 mA @ 3.3v
	69	+* Max : 360 mA
76	76
77		-(% style="color:#037691" %)**Battery:**
	71	+(% style="color:#037691" %)**Continuously 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
	73	+* Idle: 21 mA @ 3.3v
	74	+* Max : 360 mA
84	84
85		-(% style="color:#037691" %)**Power Consumption**
	76	+= 2. Configure DS20L to connect to LoRaWAN network =
86	86
87		-* Sleep Mode: 5uA @ 3.3v
88		-* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
	78	+== 2.1 How it works ==
89	89
90		-== 1.4 Suitable Container & Liquid ==
91	91
	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.
92	92
93		-* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
94		-* Container shape is regular, and surface is smooth.
95		-* Container Thickness:
96		-** Pure metal material.  2~~8mm, best is 3~~5mm
97		-** Pure non metal material: <10 mm
98		-* Pure liquid without irregular deposition.
	83	+(% style="display:none" %) (%%)
99	99
	85	+== 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
100	100
101		-(% style="display:none" %)
102	102
103		-== 1.5 Install DDS20-LB ==
	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.
104	104
	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" %)
105	105
106		-(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
	92	+[[image:image-20231110102635-5.png||height="402" width="807"]](% style="display:none" %)
107	107
108		-DDS20-LB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
	94	+(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DS20L.
109	109
110		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615091045-3.png?rev=1.1||alt="image-20220615091045-3.png"]]
	96	+Each DS20L is shipped with a sticker with the default device EUI as below:
111	111
	98	+[[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
112	112
113		-(((
114		-(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
115		-)))
116	116
117		-(((
118		-For Metal Surface with paint, it is important to polish the surface, first use crude sand paper to polish the paint level , then use exquisite sand paper to polish the metal level to make it shine & smooth.
119		-)))
	101	+You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
120	120
121		-[[image:image-20230613143052-5.png]]
122	122
	104	+(% style="color:blue" %)**Register the device**
123	123
124		-No polish needed if the container is shine metal surface without paint or non-metal container.
	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"]]
125	125
126		-[[image:image-20230613143125-6.png]]
127	127
	109	+(% style="color:blue" %)**Add APP EUI and DEV EUI**
128	128
129		-(((
130		-(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
131		-)))
	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"]]
132	132
133		-(((
134		-Power on DDS20-LB, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
135		-)))
136	136
137		-(((
138		-It is necessary to put the coupling paste between the sensor and the container, otherwise DDS20-LB won't detect the liquid level.
139		-)))
	114	+(% style="color:blue" %)**Add APP EUI in the application**
140	140
141		-(((
142		-After paste the DDS20-LB well, power on DDS20-LB. In the first 30 seconds of booting, device will check the sensors status and BLUE LED will show the status as below. After 30 seconds, BLUE LED will be off to save battery life.
143		-)))
144	144
	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"]]
145	145
146		-(((
147		-(% style="color:blue" %)**LED Status:**
148		-)))
149	149
150		-* (((
151		-Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
152		-)))
	120	+(% style="color:blue" %)**Add APP KEY**
153	153
154		-* (((
155		-(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** always ON**(%%): Sensor is power on but doesn't detect liquid. There is problem in installation point.
156		-)))
157		-* (((
158		-(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** slowly blinking**(%%): Sensor detects Liquid Level, The installation point is good.
159		-)))
	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"]]
160	160
161		-(((
162		-LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
163		-)))
164	164
	125	+(% style="color:blue" %)**Step 2:**(%%) Activate on DS20L
165	165
166		-(((
167		-(% style="color:red" %)**Note :(%%) (% style="color:blue" %)Ultrasonic coupling paste** (%%) is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
168		-)))
	127	+[[image:image-20231128133704-1.png||height="189" width="441"]]
169	169
	129	+Press the button for 5 seconds to activate the DS20L.
170	170
171		-(((
172		-(% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
173		-)))
	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.
174	174
175		-(((
176		-Prepare Eproxy AB glue.
177		-)))
	133	+After join success, it will start to upload messages to TTN and you can see the messages in the panel.
178	178
179		-(((
180		-Put Eproxy AB glue in the sensor and press it hard on the container installation point.
181		-)))
182	182
183		-(((
184		-Reset DDS20-LB and see if the BLUE LED is slowly blinking.
185		-)))
	136	+== 2.3 ​Uplink Payload ==
186	186
187		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615091045-8.png?width=341&height=203&rev=1.1||alt="image-20220615091045-8.png"]] [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615091045-9.png?width=284&height=200&rev=1.1||alt="image-20220615091045-9.png"]]
	138	+=== 2.3.1 Device Status, FPORT~=5 ===
188	188
189	189
190		-(((
191		-(% style="color:red" %)**Note 1:**(%%)** (% style="color:blue" %)Eproxy AB glue(%%)** needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
192		-)))
	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.
193	193
194		-(((
195		-(% style="color:red" %)**Note 2:**(%%)** (% style="color:blue" %)Eproxy AB glue(%%)** is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
196		-)))
	143	+The Payload format is as below.
197	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		-== 1.6 Applications ==
	151	+Example parse in TTNv3
200	200
	153	+[[image:1701149922873-259.png]]
201	201
202		-* Smart liquid control solution.
	155	+(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x21
203	203
204		-* Smart liquefied gas solution.
	157	+(% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
205	205
206		-== 1.7 Precautions ==
	159	+(% style="color:blue" %)**Frequency Band**:
207	207
	161	+0x01: EU868
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.
	163	+0x02: US915
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.
	165	+0x03: IN865
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" %)
	167	+0x04: AU915
214	214
215		-== 1.8 Sleep mode and working mode ==
	169	+0x05: KZ865
216	216
	171	+0x06: RU864
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.
	173	+0x07: AS923
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.
	175	+0x08: AS923-1
221	221
	177	+0x09: AS923-2
222	222
223		-== 1.9 Button & LEDs ==
	179	+0x0a: AS923-3
224	224
	181	+0x0b: CN470
225	225
226		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
	183	+0x0c: EU433
227	227
	185	+0x0d: KR920
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.
	187	+0x0e: MA869
241	241
242		-== 1.10 BLE connection ==
	189	+(% style="color:blue" %)**Sub-Band**:
243	243
	191	+AU915 and US915:value 0x00 ~~ 0x08
244	244
245		-DDS20-LB support BLE remote configure.
	193	+CN470: value 0x0B ~~ 0x0C
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:
	195	+Other Bands: Always 0x00
248	248
249		-* Press button to send an uplink
250		-* Press button to active device.
251		-* Device Power on or reset.
	197	+(% style="color:blue" %)**Battery Info**:
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.
	199	+Check the battery voltage.
254	254
	201	+Ex1: 0x0B45 = 2885mV
255	255
256		-== 1.11 Pin Definitions ==
	203	+Ex2: 0x0B49 = 2889mV
257	257
258		-[[image:image-20230523174230-1.png]]
259	259
	206	+=== 2.3.2 Uplink Payload, FPORT~=2 ===
260	260
261		-== 1.12 Mechanical ==
262	262
	209	+(((
	210	+DS20L will send this uplink **after** Device Status once join the LoRaWAN network successfully. And DS20L will:
263	263
264		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
	212	+periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
265	265
	214	+Uplink Payload totals 11 bytes.
	215	+)))
266	266
267		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
	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	+)))
268	268
	229	+[[image:image-20230805104104-2.png||height="136" width="754"]]
269	269
270		-[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
271	271
	232	+==== (% style="color:blue" %)**Battery Info**(%%) ====
272	272
273		-(% style="color:blue" %)**Probe Mechanical:**
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"]]
	235	+Check the battery voltage for DS20L.
276	276
	237	+Ex1: 0x0B45 = 2885mV
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"]]
	239	+Ex2: 0x0B49 = 2889mV
279	279
280	280
281		-= 2. Configure DDS20-LB to connect to LoRaWAN network =
	242	+==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
282	282
283		-== 2.1 How it works ==
284	284
	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.
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.
287	287
288		-(% style="display:none" %) (%%)
	248	+**Example**:
289	289
290		-== 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
	250	+If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
291	291
	252	+If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
292	292
293		-Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
294	294
295		-The LPS8v2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
	255	+==== (% style="color:blue" %)**Distance**(%%) ====
296	296
297		-[[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %)
298	298
	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.
299	299
300		-(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS20-LB.
301	301
302		-Each DDS20-LB is shipped with a sticker with the default device EUI as below:
	261	+**Example**:
303	303
304		-[[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
	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.
305	305
306	306
307		-You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	266	+==== (% style="color:blue" %)**Distance signal strength**(%%) ====
308	308
309	309
310		-(% style="color:blue" %)**Register the device**
	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.
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"]]
313	313
	272	+**Example**:
314	314
315		-(% style="color:blue" %)**Add APP EUI and DEV EUI**
	274	+If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
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"]]
	276	+Customers can judge whether they need to adjust the environment based on the signal strength.
318	318
319	319
320		-(% style="color:blue" %)**Add APP EUI in the application**
	279	+**1) When the sensor detects valid data:**
321	321
	281	+[[image:image-20230805155335-1.png||height="145" width="724"]]
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"]]
324	324
	284	+**2) When the sensor detects invalid data:**
325	325
326		-(% style="color:blue" %)**Add APP KEY**
	286	+[[image:image-20230805155428-2.png||height="139" width="726"]]
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"]]
329	329
	289	+**3) When the sensor is not connected:**
330	330
331		-(% style="color:blue" %)**Step 2:**(%%) Activate on DDS20-LB
	291	+[[image:image-20230805155515-3.png||height="143" width="725"]]
332	332
333	333
334		-Press the button for 5 seconds to activate the DDS20-LB.
	294	+==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
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.
337	337
338		-After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	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.
339	339
	299	+Note: The Internet Pin is a separate pin in the screw terminal. See pin mapping of GPIO_EXTI .
340	340
341		-== 2.3  ​Uplink Payload ==
	301	+**Example:**
342	342
	303	+If byte[0]&0x01=0x00 : Normal uplink packet.
343	343
	305	+If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
	306	+
	307	+
	308	+==== (% style="color:blue" %)**LiDAR temp**(%%) ====
	309	+
	310	+
	311	+Characterize the internal temperature value of the sensor.
	312	+
	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℃.
	316	+
	317	+
	318	+==== (% style="color:blue" %)**Message Type**(%%) ====
	319	+
	320	+
344	344	(((
345		-DDS20-LB will uplink payload via LoRaWAN with below payload format:
	322	+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.
	326	+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"]]
	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
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"]]
	334	+[[image:image-20230805150315-4.png||height="233" width="723"]]
364	364
365	365
366		-=== 2.3.1  Battery Info ===
	337	+=== 2.3.3 Historical measuring distance, FPORT~=3 ===
367	367
368	368
369		-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"]].
370	370
371		-Ex1: 0x0B45 = 2885mV
	342	+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
	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
374	374
	354	+**Interrupt flag & Interrupt level:**
375	375
376		-=== 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	+)))
377	377
378		-
379		-(((
380		-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.
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" %)** **
	368	+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		-)))
	370	+**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.
	372	+**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.
	374	+**c) DR2:** total payload includes 11 entries of data
392	392
393		-=== 2.3.3  Interrupt Pin ===
	376	+**d) DR3:** total payload includes 22 entries of data.
394	394
	378	+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:**
	381	+**Downlink:**
399	399
400		-0x00: Normal uplink packet.
	383	+0x31 64 CC 68 0C 64 CC 69 74 05
401	401
402		-0x01: Interrupt Uplink Packet.
	385	+[[image:image-20230805144936-2.png||height="113" width="746"]]
403	403
	387	+**Uplink:**
404	404
405		-=== 2.3.4  DS18B20 Temperature sensor ===
	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
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.
	392	+**Parsed Value:**
409	409
410		-**Example**:
	394	+[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.
	397	+[360,176,30,High,True,2023-08-04 02:53:00],
415	415
	399	+[355,168,30,Low,False,2023-08-04 02:53:29],
416	416
417		-=== 2.3.5  Sensor Flag ===
	401	+[245,211,30,Low,False,2023-08-04 02:54:29],
418	418
	403	+[57,700,30,Low,False,2023-08-04 02:55:29],
419	419
420		-(((
421		-0x01: Detect Ultrasonic Sensor
422		-)))
	405	+[361,164,30,Low,True,2023-08-04 02:56:00],
423	423
424		-(((
425		-0x00: No Ultrasonic Sensor
426		-)))
	407	+[337,184,30,Low,False,2023-08-04 02:56:40],
427	427
	409	+[20,4458,30,Low,False,2023-08-04 02:57:40],
428	428
429		-=== 2.3.6  Decode payload in The Things Network ===
	411	+[362,173,30,Low,False,2023-08-04 02:58:53],
430	430
431	431
432		-While using TTN network, you can add the payload format to decode the payload.
	414	+**History read from serial port：**
433	433
434		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654850829385-439.png?rev=1.1||alt="1654850829385-439.png"]]
	416	+[[image:image-20230805145056-3.png]]
435	435
436		-The payload decoder function for TTN V3 is here:
437	437
438		-(((
439		-DDS20-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
440		-)))
	419	+=== 2.3.4 Decode payload in The Things Network ===
441	441
442	442
443		-== 2.4  Uplink Interval ==
	422	+While using TTN network, you can add the payload format to decode the payload.
444	444
	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"]]
445	445
446		-The DDS20-LB by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>||anchor="H3.3.1SetTransmitIntervalTime"]]
447	447
	427	+(((
	428	+The payload decoder function for TTN is here:
	429	+)))
448	448
449		-== 2.5  ​Show Data in DataCake IoT Server ==
	431	+(((
	432	+DS20L TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
	433	+)))
450	450
451	451
	436	+== 2.4 ​Show Data in DataCake IoT Server ==
	437	+
	438	+
452	452	(((
453	453	[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
454	454	)))
...	...	@@ -471,7 +471,7 @@
471	471
472	472	(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
473	473
474		-(% style="color:blue" %)**Step 4**(%%)**: Search the DDS20-LB and add DevEUI.**
	461	+(% style="color:blue" %)**Step 4**(%%)**: Search the DS20L and add DevEUI.**
475	475
476	476	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654851029373-510.png?rev=1.1||alt="1654851029373-510.png"]]
477	477
...	...	@@ -481,98 +481,20 @@
481	481	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610165129-11.png?width=1088&height=595&rev=1.1||alt="image-20220610165129-11.png"]]
482	482
483	483
	471	+== 2.5 Frequency Plans ==
484	484
485		-== 2.6 Datalog Feature ==
486	486
	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.
487	487
488		-Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DDS20-LB will store the reading for future retrieving purposes.
489		-
490		-
491		-=== 2.6.1 Ways to get datalog via LoRaWAN ===
492		-
493		-
494		-Set PNACKMD=1, DDS20-LB will wait for ACK for every uplink, when there is no LoRaWAN network,DDS20-LB will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
495		-
496		-* (((
497		-a) DDS20-LB will do an ACK check for data records sending to make sure every data arrive server.
498		-)))
499		-* (((
500		-b) DDS20-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but DDS20-LB won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if DDS20-LB gets a ACK, DDS20-LB will consider there is a network connection and resend all NONE-ACK messages.
501		-)))
502		-
503		-Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
504		-
505		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220703111700-2.png?width=1119&height=381&rev=1.1||alt="图片-20220703111700-2.png" height="381" width="1119"]]
506		-
507		-
508		-=== 2.6.2 Unix TimeStamp ===
509		-
510		-
511		-DDS20-LB uses Unix TimeStamp format based on
512		-
513		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-11.png?width=627&height=97&rev=1.1||alt="图片-20220523001219-11.png" height="97" width="627"]]
514		-
515		-User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
516		-
517		-Below is the converter example
518		-
519		-[[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"]]
520		-
521		-
522		-So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
523		-
524		-
525		-=== 2.6.3 Set Device Time ===
526		-
527		-
528		-User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
529		-
530		-Once DDS20-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DDS20-LB. If DDS20-LB fails to get the time from the server, DDS20-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
531		-
532		-(% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
533		-
534		-
535		-=== 2.6.4 Poll sensor value ===
536		-
537		-
538		-Users can poll sensor values based on timestamps. Below is the downlink command.
539		-
540		-(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
541		-|(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
542		-|(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
543		-|(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
544		-
545		-(((
546		-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.
547		-)))
548		-
549		-(((
550		-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"]]
551		-)))
552		-
553		-(((
554		-Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
555		-)))
556		-
557		-(((
558		-Uplink Internal =5s，means DDS20-LB will send one packet every 5s. range 5~~255s.
559		-)))
560		-
561		-
562		-== 2.7 Frequency Plans ==
563		-
564		-
565		-The DDS20-LB uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
566		-
567	567	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
568	568
569	569
570		-= 3. Configure DDS20-LB =
	479	+= 3. Configure DS20L =
571	571
572	572	== 3.1 Configure Methods ==
573	573
574	574
575		-DDS20-LB supports below configure method:
	484	+DS20L supports below configure method:
576	576
577	577	* AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
578	578
...	...	@@ -594,10 +594,10 @@
594	594	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
595	595
596	596
597		-== 3.3 Commands special design for DDS20-LB ==
	506	+== 3.3 Commands special design for DS20L ==
598	598
599	599
600		-These commands only valid for DDS20-LB, as below:
	509	+These commands only valid for DS20L, as below:
601	601
602	602
603	603	=== 3.3.1 Set Transmit Interval Time ===
...	...	@@ -612,7 +612,7 @@
612	612	)))
613	613
614	614	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
615		-|=(% style="width: 156px;background-color:#D9E2F3; color:#0070c0" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3; color:#0070c0" %)**Function**|=(% style="background-color:#D9E2F3; color:#0070c0" %)**Response**
	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**
616	616	|(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
617	617	30000
618	618	OK
...	...	@@ -639,26 +639,31 @@
639	639	Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
640	640	)))
641	641	* (((
642		-Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
	551	+Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
643	643	)))
644	644
	554	+
645	645	=== 3.3.2 Set Interrupt Mode ===
646	646
647	647
648		-Feature, Set Interrupt mode for PA8 of pin.
	558	+Feature, Set Interrupt mode for pin of GPIO_EXTI.
649	649
650		-When AT+INTMOD=0 is set, PA8 is used as a digital input port.
	560	+When AT+INTMOD=0 is set, GPIO_EXTI is used as a digital input port.
651	651
652	652	(% style="color:blue" %)**AT Command: AT+INTMOD**
653	653
654	654	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
655		-|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**
	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**
656	656	|(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
657	657	0
658	658	OK
659	659	the mode is 0 =Disable Interrupt
660	660	)))
661		-|(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
	571	+|(% style="width:154px" %)(((
	572	+AT+INTMOD=3
	573	+
	574	+(default)
	575	+)))|(% style="width:196px" %)(((
662	662	Set Transmit Interval
663	663	0. (Disable Interrupt),
664	664	~1. (Trigger by rising and falling edge)
...	...	@@ -676,10 +676,82 @@
676	676
677	677	* Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
678	678
	593	+
	594	+
	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	+(% style="color:blue" %)**AT Command: AT+DOL**
	626	+
	627	+(% border="1" cellspacing="4" style="width:571.818px" %)
	628	+|(% style="width:172px;background-color:#4F81BD;color:white" %)**Command Example**|(% style="width:279px;background-color:#4F81BD;color:white" %)**Function**|(% style="width:118px;background-color:#4F81BD;color:white" %)**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;background-color:#4F81BD;color:white" %)**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	+(% style="color:blue" %)**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	+
	660	+* Example 1: Downlink Payload: 070107080064000190  **~-~-->**  AT+MOD=1,1800,100,0,400
	661	+
	662	+
	663	+
	664	+
679	679	= 4. Battery & Power Consumption =
680	680
681	681
682		-DDS20-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
	668	+DS20L use built-in 2400mAh non-chargeable battery for long-term use up to several years*. See below link for detail information about the battery info and how to replace.
683	683
684	684	[[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
685	685
...	...	@@ -688,7 +688,7 @@
688	688
689	689
690	690	(% class="wikigeneratedid" %)
691		-User can change firmware DDS20-LB to:
	677	+User can change firmware DS20L to:
692	692
693	693	* Change Frequency band/ region.
694	694
...	...	@@ -696,7 +696,7 @@
696	696
697	697	* Fix bugs.
698	698
699		-Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/ph4uyz0rchflrnw/AADr1f_5Sg30804NItpfOQbla?dl=0]]**
	685	+Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/zqv1vt3komgp4tu/AAC33PnXIcWOVl_UXBEAeT_xa?dl=0]]**
700	700
701	701	Methods to Update Firmware:
702	702
...	...	@@ -704,42 +704,40 @@
704	704
705	705	* Update through UART TTL interface: **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
706	706
707		-
708	708	= 6. FAQ =
709	709
710		-== 6.1  What is the frequency plan for DDS20-LB? ==
	695	+== 6.1 What is the frequency plan for DS20L? ==
711	711
712	712
713		-DDS20-LB use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
	698	+DS20L use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
714	714
715	715
716		-== 6.2  Can I use DDS20-LB in condensation environment? ==
	701	+= 7. Trouble Shooting =
717	717
	703	+== 7.1 AT Command input doesn't work ==
718	718
719		-DDS20-LB is not suitable to be used in condensation environment. Condensation on the DDS20-LB probe will affect the reading and always got 0.
720	720
	706	+In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:blue" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:blue" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
721	721
722		-= 7.  Trouble Shooting =
723	723
724		-== 7.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
	709	+== 7.2 Significant error between the output distant value of LiDAR and actual distance ==
725	725
726	726
727		-It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	712	+(((
	713	+(% 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.)
	714	+)))
728	728
	716	+(((
	717	+(% style="color:red" %)**Troubleshooting**(%%): Please avoid use of this product under such circumstance in practice.
	718	+)))
729	729
730		-== 7.2  AT Command input doesn't work ==
731	731
732		-
733		-In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:blue" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:blue" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
734		-
735		-
736		-== 7.3  Why i always see 0x0000 or 0 for the distance value? ==
737		-
738		-
739	739	(((
740		-LDDS20 has a strict [[**installation requirement**>>||anchor="H1.5A0InstallDDS20-LB"]]. Please make sure the installation method exactly follows up with the installation requirement. Otherwise, the reading might be always 0x00.
	722	+(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
	723	+)))
741	741
742		-If you have followed the instruction requirement exactly but still see the 0x00 reading issue, please. please double-check the decoder, you can check the raw payload to verify.
	725	+(((
	726	+(% style="color:red" %)**Troubleshooting**(%%): please use dry dust-free cloth to gently remove the foreign matter.
743	743	)))
744	744
745	745
...	...	@@ -746,7 +746,7 @@
746	746	= 8. Order Info =
747	747
748	748
749		-Part Number: (% style="color:blue" %)**DDS20-LB-XXX**
	733	+Part Number: (% style="color:blue" %)**DS20L-XXX**
750	750
751	751	(% style="color:red" %)**XXX**(%%): **The default frequency band**
752	752
...	...	@@ -771,7 +771,7 @@
771	771
772	772	(% style="color:#037691" %)**Package Includes**:
773	773
774		-* DDS20-LB LoRaWAN Ultrasonic Liquid Level Sensor x 1
	758	+* DS20L LoRaWAN Smart Distance Detector x 1
775	775
776	776	(% style="color:#037691" %)**Dimension and weight**:
777	777

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