Wiki source code of DS20L -- LoRaWAN Smart Distance Detector User Manual

Version 120.1 by Xiaoling on 2023/11/28 14:29

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26.1	1	(% style="text-align:center" %)
111.2	2	[[image:image-20231110085342-2.png\|\|height="481" width="481"]]
1.1	3
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75.2	6
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111.2	10
31.2	11	Table of Contents：
30.1	12
1.1	13	{{toc/}}
	14
	15
	16
	17
	18
	19
31.1	20	= 1. Introduction =
1.1	21
113.3	22	== 1.1 What is LoRaWAN Smart Distance Detector ==
1.1	23
39.6	24
115.1	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.
1.1	26
113.3	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.
1.1	29
113.3	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.*
1.1	31
113.3	32	DS20L is fully compatible with (% style="color:blue" %)LoRaWAN v1.0.3 Class A protocol(%%), it can work with a standard LoRaWAN gateway.
62.4	33
1.1	34
114.2	35	[[image:image-20231110102635-5.png\|\|height="402" width="807"]]
1.1	36
64.2	37
1.1	38	== 1.2 Features ==
	39
39.6	40
113.4	41	* LoRaWAN Class A protocol
	42	* LiDAR distance detector, range 3 ~~ 200cm
	43	* Periodically detect or continuously detect mode
70.5	44	* AT Commands to change parameters
113.4	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
1.1	49
	50	== 1.3 Specification ==
	51
	52
113.5	53	(% style="color:#037691" %)LiDAR Sensor:
70.6	54
113.5	55	* Operation Temperature: -40 ~~ 80 °C
	56	* Operation Humidity: 0~~99.9%RH (no Dew)
	57	* Storage Temperature: -10 ~~ 45°C
113.4	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
82.3	62
115.1	63	== 1.4 Power Consumption ==
114.2	64
115.1	65
116.2	66	(% style="color:#037691" %)Battery Power Mode:
115.1	67
116.1	68	* Idle: 0.003 mA @ 3.3v
	69	* Max : 360 mA
115.1	70
116.2	71	(% style="color:#037691" %)Continuously mode:
115.1	72
116.1	73	* Idle: 21 mA @ 3.3v
	74	* Max : 360 mA
115.1	75
113.5	76	= 2. Configure DS20L to connect to LoRaWAN network =
77.4	77
1.1	78	== 2.1 How it works ==
	79
	80
113.6	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.
1.1	82
64.2	83	(% style="display:none" %) (%%)
1.1	84
	85	== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
	86
	87
	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.
	89
114.2	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" %)
1.1	91
114.2	92	[[image:image-20231110102635-5.png\|\|height="402" width="807"]](% style="display:none" %)
1.1	93
113.6	94	(% style="color:blue" %)Step 1:(%%) Create a device in TTN with the OTAA keys from DS20L.
1.1	95
113.6	96	Each DS20L is shipped with a sticker with the default device EUI as below:
1.1	97
30.1	98	[[image:image-20230426084152-1.png\|\|alt="图片-20230426084152-1.png" height="233" width="502"]]
1.1	99
	100
	101	You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	102
	103
	104	(% style="color:blue" %)Register the device
	105
14.13	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"]]
1.1	107
	108
	109	(% style="color:blue" %)Add APP EUI and DEV EUI
	110
30.1	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"]]
1.1	112
	113
	114	(% style="color:blue" %)Add APP EUI in the application
	115
	116
30.1	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"]]
1.1	118
	119
	120	(% style="color:blue" %)Add APP KEY
	121
30.1	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"]]
1.1	123
	124
113.6	125	(% style="color:blue" %)Step 2:(%%) Activate on DS20L
1.1	126
118.2	127	[[image:image-20231128133704-1.png\|\|height="189" width="441"]]
1.1	128
113.6	129	Press the button for 5 seconds to activate the DS20L.
6.1	130
1.1	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.
	132
	133	After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	134
	135
82.8	136	== 2.3 Uplink Payload ==
1.1	137
85.1	138	=== 2.3.1 Device Status, FPORT~=5 ===
	139
90.2	140
113.6	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.
85.1	142
	143	The Payload format is as below.
	144
90.2	145	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
90.11	146	\|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
85.1	147	Size(bytes)
90.11	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
85.1	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
	150
	151	Example parse in TTNv3
	152
118.2	153	[[image:1701149922873-259.png]]
93.1	154
118.2	155	(% style="color:blue" %)Sensor Model(%%): For DS20L, this value is 0x21
85.1	156
90.17	157	(% style="color:blue" %)Firmware Version(%%): 0x0100, Means: v1.0.0 version
85.1	158
90.17	159	(% style="color:blue" %)Frequency Band:
85.1	160
	161	0x01: EU868
	162
	163	0x02: US915
	164
	165	0x03: IN865
	166
	167	0x04: AU915
	168
	169	0x05: KZ865
	170
	171	0x06: RU864
	172
	173	0x07: AS923
	174
	175	0x08: AS923-1
	176
	177	0x09: AS923-2
	178
	179	0x0a: AS923-3
	180
	181	0x0b: CN470
	182
	183	0x0c: EU433
	184
	185	0x0d: KR920
	186
	187	0x0e: MA869
	188
90.17	189	(% style="color:blue" %)Sub-Band:
85.1	190
	191	AU915 and US915:value 0x00 ~~ 0x08
	192
	193	CN470: value 0x0B ~~ 0x0C
	194
	195	Other Bands: Always 0x00
	196
90.17	197	(% style="color:blue" %)Battery Info:
85.1	198
	199	Check the battery voltage.
	200
	201	Ex1: 0x0B45 = 2885mV
	202
	203	Ex2: 0x0B49 = 2889mV
	204
	205
89.1	206	=== 2.3.2 Uplink Payload, FPORT~=2 ===
85.1	207
90.2	208
62.5	209	(((
113.6	210	DS20L will send this uplink after Device Status once join the LoRaWAN network successfully. And DS20L will:
1.1	211
109.2	212	periodically send this uplink every 20 minutes, this interval [[can be changed>>\|\|anchor="H3.3.1SetTransmitIntervalTime"]].
93.1	213
	214	Uplink Payload totals 11 bytes.
62.5	215	)))
1.1	216
90.7	217	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	218	\|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
70.10	219	Size(bytes)
90.9	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
90.6	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" %)(((
90.14	224	[[Interrupt flag & Interrupt_level>>\|\|anchor="HInterruptPin26A0InterruptLevel"]]
90.6	225	)))\|(% style="width:54px" %)[[LiDAR temp>>\|\|anchor="HLiDARtemp"]]\|(% style="width:96px" %)(((
	226	[[Message Type>>\|\|anchor="HMessageType"]]
82.4	227	)))
1.1	228
93.1	229	[[image:image-20230805104104-2.png\|\|height="136" width="754"]]
1.1	230
	231
90.16	232	==== (% style="color:blue" %)Battery Info(%%) ====
1.1	233
	234
113.6	235	Check the battery voltage for DS20L.
1.1	236
70.10	237	Ex1: 0x0B45 = 2885mV
1.1	238
70.10	239	Ex2: 0x0B49 = 2889mV
46.1	240
1.1	241
90.16	242	==== (% style="color:blue" %)DS18B20 Temperature sensor(%%) ====
67.7	243
	244
82.4	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.
1.1	246
14.22	247
82.4	248	Example:
1.1	249
82.4	250	If payload is: 0105H: (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
79.11	251
82.4	252	If payload is: FF3FH : (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
67.7	253
	254
90.16	255	==== (% style="color:blue" %)Distance(%%) ====
10.1	256
1.1	257
82.4	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.
	259
	260
	261	Example:
	262
	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.
	264
	265
90.16	266	==== (% style="color:blue" %)Distance signal strength(%%) ====
82.4	267
	268
	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.
	270
	271
	272	Example:
	273
	274	If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
	275
	276	Customers can judge whether they need to adjust the environment based on the signal strength.
	277
	278
104.1	279	1) When the sensor detects valid data:
	280
	281	[[image:image-20230805155335-1.png\|\|height="145" width="724"]]
	282
	283
	284	2) When the sensor detects invalid data:
	285
	286	[[image:image-20230805155428-2.png\|\|height="139" width="726"]]
	287
	288
	289	3) When the sensor is not connected:
	290
	291	[[image:image-20230805155515-3.png\|\|height="143" width="725"]]
	292
	293
90.16	294	==== (% style="color:blue" %)Interrupt Pin & Interrupt Level(%%) ====
82.4	295
	296
82.13	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.
82.4	298
114.2	299	Note: The Internet Pin is a separate pin in the screw terminal. See pin mapping of GPIO_EXTI .
82.4	300
70.10	301	Example:
1.1	302
106.1	303	If byte[0]&0x01=0x00 : Normal uplink packet.
1.1	304
106.1	305	If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
1.1	306
	307
90.16	308	==== (% style="color:blue" %)LiDAR temp(%%) ====
62.5	309
1.1	310
82.4	311	Characterize the internal temperature value of the sensor.
1.1	312
82.4	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℃.
1.1	316
39.5	317
90.16	318	==== (% style="color:blue" %)Message Type(%%) ====
1.1	319
	320
55.1	321	(((
82.4	322	For a normal uplink payload, the message type is always 0x01.
55.1	323	)))
	324
	325	(((
82.4	326	Valid Message Type:
55.1	327	)))
46.1	328
82.4	329	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
82.7	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
108.1	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
46.1	333
99.1	334	[[image:image-20230805150315-4.png\|\|height="233" width="723"]]
90.19	335
97.1	336
99.1	337	=== 2.3.3 Historical measuring distance, FPORT~=3 ===
97.1	338
99.1	339
113.6	340	DS20L stores sensor values and users can retrieve these history values via the [[downlink command>>\|\|anchor="H2.5.4Pollsensorvalue"]].
109.3	341
107.1	342	The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
97.1	343
109.10	344	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
99.1	345	\|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
	346	Size(bytes)
109.5	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
99.1	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
97.1	353
99.1	354	Interrupt flag & Interrupt level:
	355
109.10	356	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
99.1	357	\|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
	358	Size(bit)
109.7	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
99.1	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	)))
	363
97.1	364	* (((
113.6	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.
97.1	366	)))
	367
	368	For example, in the US915 band, the max payload for different DR is:
	369
	370	a) DR0: max is 11 bytes so one entry of data
	371
	372	b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
	373
	374	c) DR2: total payload includes 11 entries of data
	375
	376	d) DR3: total payload includes 22 entries of data.
	377
113.6	378	If DS20L doesn't have any data in the polling time. It will uplink 11 bytes of 0
97.1	379
	380
	381	Downlink:
	382
	383	0x31 64 CC 68 0C 64 CC 69 74 05
	384
	385	[[image:image-20230805144936-2.png\|\|height="113" width="746"]]
	386
	387	Uplink:
	388
	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
	390
	391
	392	Parsed Value:
	393
	394	[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
	395
	396
	397	[360,176,30,High,True,2023-08-04 02:53:00],
	398
	399	[355,168,30,Low,False,2023-08-04 02:53:29],
	400
	401	[245,211,30,Low,False,2023-08-04 02:54:29],
	402
	403	[57,700,30,Low,False,2023-08-04 02:55:29],
	404
	405	[361,164,30,Low,True,2023-08-04 02:56:00],
	406
	407	[337,184,30,Low,False,2023-08-04 02:56:40],
	408
	409	[20,4458,30,Low,False,2023-08-04 02:57:40],
	410
	411	[362,173,30,Low,False,2023-08-04 02:58:53],
	412
	413
107.1	414	History read from serial port：
97.1	415
	416	[[image:image-20230805145056-3.png]]
	417
	418
100.1	419	=== 2.3.4 Decode payload in The Things Network ===
82.8	420
	421
70.10	422	While using TTN network, you can add the payload format to decode the payload.
1.1	423
82.10	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"]]
1.1	425
	426
62.5	427	(((
82.4	428	The payload decoder function for TTN is here:
62.5	429	)))
1.1	430
82.4	431	(((
113.6	432	DS20L TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
82.4	433	)))
1.1	434
82.4	435
93.1	436	== 2.4 Show Data in DataCake IoT Server ==
1.1	437
	438
62.5	439	(((
70.10	440	[[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:
62.5	441	)))
1.1	442
	443
62.5	444	(((
70.10	445	(% style="color:blue" %)Step 1(%%): Be sure that your device is programmed and properly connected to the network at this time.
62.5	446	)))
1.1	447
62.5	448	(((
70.10	449	(% style="color:blue" %)Step 2(%%): To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:
62.5	450	)))
14.26	451
55.1	452
70.10	453	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654592790040-760.png?rev=1.1\|\|alt="1654592790040-760.png"]]
1.1	454
	455
70.10	456	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654592800389-571.png?rev=1.1\|\|alt="1654592800389-571.png"]]
1.1	457
	458
70.10	459	(% style="color:blue" %)Step 3(%%): Create an account or log in Datacake.
1.1	460
113.6	461	(% style="color:blue" %)Step 4(%%): Search the DS20L and add DevEUI.
1.1	462
70.10	463	[[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"]]
62.5	464
1.1	465
70.10	466	After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
1.1	467
70.10	468	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610165129-11.png?width=1088&height=595&rev=1.1\|\|alt="image-20220610165129-11.png"]]
1.1	469
	470
118.2	471	== 2.5 Frequency Plans ==
1.1	472
	473
113.7	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.
1.1	475
	476	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
	477
	478
118.2	479	= 3. Configure DS20L =
82.4	480
16.4	481	== 3.1 Configure Methods ==
1.1	482
	483
113.7	484	DS20L supports below configure method:
1.1	485
	486	* AT Command via Bluetooth Connection (Recommended): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
67.20	487
11.1	488	* AT Command via UART Connection : See [[UART Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
67.20	489
1.1	490	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
	491
	492	== 3.2 General Commands ==
	493
	494
	495	These commands are to configure:
	496
	497	* General system settings like: uplink interval.
67.20	498
1.1	499	* LoRaWAN protocol & radio related command.
	500
	501	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	502
	503	[[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/]]
	504
	505
113.7	506	== 3.3 Commands special design for DS20L ==
1.1	507
	508
113.7	509	These commands only valid for DS20L, as below:
1.1	510
	511
	512	=== 3.3.1 Set Transmit Interval Time ===
	513
	514
62.5	515	(((
1.1	516	Feature: Change LoRaWAN End Node Transmit Interval.
62.5	517	)))
	518
	519	(((
1.1	520	(% style="color:blue" %)AT Command: AT+TDC
62.5	521	)))
1.1	522
14.34	523	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
82.16	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
1.1	525	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
	526	30000
	527	OK
	528	the interval is 30000ms = 30s
	529	)))
	530	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
	531	OK
	532	Set transmit interval to 60000ms = 60 seconds
	533	)))
	534
62.5	535	(((
1.1	536	(% style="color:blue" %)Downlink Command: 0x01
62.5	537	)))
1.1	538
62.5	539	(((
1.1	540	Format: Command Code (0x01) followed by 3 bytes time value.
62.5	541	)))
1.1	542
62.5	543	(((
1.1	544	If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
62.5	545	)))
1.1	546
62.5	547	* (((
	548	Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	549	)))
	550	* (((
118.2	551	Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	552	)))
82.22	553
70.11	554	=== 3.3.2 Set Interrupt Mode ===
62.5	555
	556
109.1	557	Feature, Set Interrupt mode for pin of GPIO_EXTI.
1.1	558
107.1	559	When AT+INTMOD=0 is set, GPIO_EXTI is used as a digital input port.
46.1	560
1.1	561	(% style="color:blue" %)AT Command: AT+INTMOD
	562
14.34	563	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
82.16	564	\|=(% 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
1.1	565	\|(% style="width:154px" %)AT+INTMOD=?\|(% style="width:196px" %)Show current interrupt mode\|(% style="width:157px" %)(((
	566	0
	567	OK
	568	the mode is 0 =Disable Interrupt
	569	)))
107.1	570	\|(% style="width:154px" %)(((
118.2	571	AT+INTMOD=3
107.1	572
	573	(default)
	574	)))\|(% style="width:196px" %)(((
1.1	575	Set Transmit Interval
	576	0. (Disable Interrupt),
	577	~1. (Trigger by rising and falling edge)
	578	2. (Trigger by falling edge)
	579	3. (Trigger by rising edge)
	580	)))\|(% style="width:157px" %)OK
	581
	582	(% style="color:blue" %)Downlink Command: 0x06
	583
	584	Format: Command Code (0x06) followed by 3 bytes.
	585
	586	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	587
	588	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
62.6	589
1.1	590	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	591
118.2	592
	593	== 3.3.3 Set work mode ==
	594
	595
	596	Feature: Switch working mode
	597
	598	(% style="color:blue" %)AT Command: AT+MOD
	599
118.12	600	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
	601	\|=(% style="width: 162px;background-color:#4F81BD;color:white" %)Command Example\|=(% style="width: 193px;background-color:#4F81BD;color:white" %)Function\|=(% style="width: 155px;background-color:#4F81BD;color:white" %)Response
118.2	602	\|(% style="width:162px" %)AT+MOD=?\|(% style="width:191px" %)Get the current working mode.\|(% style="width:106px" %)OK
	603	\|(% style="width:162px" %)AT+MOD=1\|(% style="width:191px" %)Set the working mode to Regular measurements.\|(% style="width:106px" %)(((
	604	OK
	605	Attention:Take effect after ATZ
	606	)))
	607
	608	(% style="color:blue" %)Downlink Command:
	609
	610	* Example: 0x0A00 ~/~/ Same as AT+MOD=0
	611
	612	* Example: 0x0A01 ~/~/ Same as AT+MOD=1
	613
	614	=== 3.3.4 Set threshold and threshold mode ===
	615
	616
	617	Feature, Set threshold and threshold mode
	618
118.9	619	When (% style="color:#037691" %)AT+DOL=0,0,0,0,400(%%) is set, No threshold is used, the sampling time is 400ms.
118.2	620
118.3	621	(% style="color:blue" %)AT Command: AT+DOL
118.2	622
118.17	623	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	624	\|(% style="background-color:#4f81bd; color:white; width:162px" %)Command Example\|(% style="background-color:#4f81bd; color:white; width:240px" %)Function\|(% style="background-color:#4f81bd; color:white; width:108px" %)Response
118.2	625	\|(% style="width:172px" %)AT+ DOL =?\|(% style="width:279px" %)Get the current threshold mode and sampling time\|(% style="width:118px" %)(((
	626	0,0,0,0,400
	627	OK
	628	)))
	629	\|(% style="width:172px" %)AT+ DOL =1,1800,100,0,400\|(% style="width:279px" %)Set only the upper and lower thresholds\|(% style="width:118px" %)OK
	630
	631
118.17	632
	633	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	634	\|(% rowspan="11" style="color:blue; width:120px" %)AT+DOL=5,1800,0,0,400\|(% rowspan="6" style="width:240px" %)The first bit sets the limit mode\|(% style="width:150px" %)0: Do not use upper and lower limits
	635	\|(% style="width:251px" %)1: Use upper and lower limits
	636	\|(% style="width:251px" %)2: Less than the lower limit
	637	\|(% style="width:251px" %)3: Greater than the lower limit
	638	\|(% style="width:251px" %)4: Less than the upper limit
118.2	639	\|(% style="width:251px" %)5: Greater than the upper limit
	640	\|(% style="width:226px" %)The second bit sets the upper limit value\|(% style="width:251px" %)3~~2000MM
	641	\|(% style="width:226px" %)The third bit sets the lower limit value\|(% style="width:251px" %)3~~2000MM
	642	\|(% 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
	643	\|(% style="width:251px" %)1 Person or object counting statistics
	644	\|(% style="width:226px" %)The fifth bit sets the sampling time\|(% style="width:251px" %)(((
	645	0~~10000ms
	646
	647
	648	)))
	649
118.3	650	(% style="color:blue" %)Downlink Command: 0x07
118.2	651
	652	Format: Command Code (0x07) followed by 9bytes.
	653
	654	* Example 0: Downlink Payload: 070000000000000190 ~-~--> AT+MOD=0,0,0,0,400
118.3	655
118.2	656	* Example 1: Downlink Payload: 070107080064000190 ~-~--> AT+MOD=1,1800,100,0,400
	657
118.3	658
	659
16.4	660	= 4. Battery & Power Consumption =
14.45	661
1.1	662
113.7	663	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.
1.1	664
	665	[[Battery Info & Power Consumption Analyze>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	666
	667
16.4	668	= 5. OTA Firmware update =
1.1	669
	670
13.1	671	(% class="wikigeneratedid" %)
113.7	672	User can change firmware DS20L to:
1.1	673
13.1	674	* Change Frequency band/ region.
62.7	675
13.1	676	* Update with new features.
62.7	677
13.1	678	* Fix bugs.
1.1	679
113.6	680	Firmware and changelog can be downloaded from : [[Firmware download link>>https://www.dropbox.com/sh/zqv1vt3komgp4tu/AAC33PnXIcWOVl_UXBEAeT_xa?dl=0]]
1.1	681
31.1	682	Methods to Update Firmware:
1.1	683
79.15	684	* (Recommanded way) OTA firmware update via wireless: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]
62.7	685
70.18	686	* 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]].
1.1	687
31.1	688	= 6. FAQ =
1.1	689
113.8	690	== 6.1 What is the frequency plan for DS20L? ==
1.1	691
62.7	692
113.8	693	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"]]
62.7	694
1.1	695
80.4	696	= 7. Trouble Shooting =
1.1	697
80.4	698	== 7.1 AT Command input doesn't work ==
1.1	699
70.14	700
80.4	701	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.
70.14	702
	703
80.4	704	== 7.2 Significant error between the output distant value of LiDAR and actual distance ==
70.14	705
	706
80.4	707	(((
82.21	708	(% 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.)
80.4	709	)))
70.14	710
80.4	711	(((
82.21	712	(% style="color:red" %)Troubleshooting(%%): Please avoid use of this product under such circumstance in practice.
80.4	713	)))
70.14	714
	715
80.4	716	(((
	717	(% style="color:blue" %)Cause ②(%%): The IR-pass filters are blocked.
	718	)))
70.14	719
79.7	720	(((
82.21	721	(% style="color:red" %)Troubleshooting(%%): please use dry dust-free cloth to gently remove the foreign matter.
79.7	722	)))
70.14	723
	724
	725	= 8. Order Info =
	726
	727
113.5	728	Part Number: (% style="color:blue" %)DS20L-XXX
70.14	729
70.12	730	(% style="color:red" %)XXX(%%): The default frequency band
1.1	731
38.1	732	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
1.1	733
38.1	734	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
1.1	735
38.1	736	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
1.1	737
38.1	738	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
1.1	739
38.1	740	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
1.1	741
38.1	742	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
1.1	743
38.1	744	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
1.1	745
38.1	746	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
1.1	747
70.14	748	= 9. Packing Info =
67.11	749
	750
39.1	751	(% style="color:#037691" %)Package Includes:
1.1	752
113.5	753	* DS20L LoRaWAN Smart Distance Detector x 1
1.1	754
39.1	755	(% style="color:#037691" %)Dimension and weight:
1.1	756
31.1	757	* Device Size: cm
1.1	758
31.1	759	* Device Weight: g
1.1	760
31.1	761	* Package Size / pcs : cm
1.1	762
31.1	763	* Weight / pcs : g
1.1	764
70.14	765	= 10. Support =
	766
	767
31.1	768	* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
39.6	769
	770	* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[Support@dragino.cc>>mailto:Support@dragino.cc]].

Wiki source code of DS20L -- LoRaWAN Smart Distance Detector User Manual

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