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

Version 120.2 by Xiaoling on 2023/11/28 14:40

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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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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
120.2	229	==== MOD~=1 ====
1.1	230
120.2	231	Regularly detect distance and report. When the distance exceeds the limit, the alarm flag is set to 1, and the report can be triggered by external interrupts.
1.1	232
120.2	233	Uplink Payload totals 10 bytes.
1.1	234
120.2	235	(% border="1" cellspacing="4" style="width:510px;background-color:#f2f2f2" %)
	236	\|(% style="width:60px;background-color:#4F81BD;color:white" %)Size(bytes)\|(% style="width:41px;background-color:#4F81BD;color:white" %)2\|(% style="width:176px;background-color:#4F81BD;color:white" %)1\|(% style="width:74px;background-color:#4F81BD;color:white" %)2\|(% style="width:100px;background-color:#4F81BD;color:white" %)1\|(% style="width:119px;background-color:#4F81BD;color:white" %)4
	237	\|(% style="width:91px" %)Value\|(% style="width:41px" %)[[BAT>>\|\|anchor="HBatteryInfo"]]\|(% style="width:176px" %)MOD+ Alarm+Interrupt\|(% style="width:74px" %)Distance\|(% style="width:100px" %)Sensor State\|(% style="width:119px" %)Interrupt Count
1.1	238
	239
120.2	240	[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
1.1	241
120.2	242	==== Battery Info ====
46.1	243
120.2	244	Check the battery voltage for DS20L
1.1	245
120.2	246	Ex1: 0x0E10 = 3600mV
67.7	247
120.2	248	MOD & Alarm & Interrupt
67.7	249
120.2	250	MOD:
1.1	251
120.2	252	Example: (0x60>>6) & 0x3f =1
14.22	253
120.2	254	0x01: Regularly detect distance and report.
	255	0x02: Uninterrupted measurement (external power supply).
1.1	256
120.2	257	Alarm:
79.11	258
120.2	259	When the detection distance exceeds the limit, the alarm flag is set to 1.
67.7	260
120.2	261	Interrupt:
67.7	262
120.2	263	Whether it is an external interrupt.
10.1	264
120.2	265	==== Distance info ====
1.1	266
82.4	267	Example:
	268
120.2	269	If payload is: 0708H: distance = 0708H = 1800 mm
82.4	270
120.2	271	==== Sensor State ====
82.4	272
120.2	273	Ex1: 0x00: Normal collection distance
82.4	274
120.2	275	Ex2 0x0x: Distance collection is wrong
82.4	276
120.2	277	==== Interript Count ====
82.4	278
120.2	279	If payload is:000007D0H: count = 07D0H =2000
82.4	280
120.2	281	MOD=2
82.4	282
120.2	283	Uninterrupted measurement. When the distance exceeds the limit, the output IO is set high and reports are reported every five minutes. The time can be set and powered by an external power supply.Uplink Payload totals 11bytes.
82.4	284
120.2	285	\|Size(bytes)\|2\|1\|4\|2\|2
	286	\|Value\|[[BAT>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DS20L_LoRaWAN_Smart_Distance_Detector_User_Manual/#HBatteryInfo]]\|MOD+ Alarm+Do+ Limit flag\|Distance Limit Alarm count\|Upper limit\|Lower limit
82.4	287
	288
120.2	289	[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
104.1	290
120.2	291	MOD & Alarm & Do & Limit flag
104.1	292
120.2	293	MOD:
104.1	294
120.2	295	Example: (0x60>>6) & 0x3f =1
104.1	296
120.2	297	0x01: Regularly detect distance and report.
	298	0x02: Uninterrupted measurement (external power supply).
104.1	299
120.2	300	Alarm:
104.1	301
120.2	302	When the detection distance exceeds the limit, the alarm flag is set to 1.
104.1	303
120.2	304	Do:
104.1	305
120.2	306	When the distance exceeds the set threshold, pull the Do pin high.
104.1	307
120.2	308	Limit flag:
82.4	309
120.2	310	Mode for setting threshold: 0~~5
82.4	311
120.2	312	0: does not use upper and lower limits
82.4	313
120.2	314	1: Use upper and lower limits
82.4	315
120.2	316	2: is less than the lower limit value
1.1	317
120.2	318	3: is greater than the lower limit value
1.1	319
120.2	320	4: is less than the upper limit
1.1	321
120.2	322	5: is greater than the upper limit
1.1	323
120.2	324	Upper limit:
62.5	325
120.2	326	The upper limit of the threshold cannot exceed 2000mm.
1.1	327
120.2	328	Lower limit:
1.1	329
120.2	330	The lower limit of the threshold cannot be less than 3mm.
1.1	331
39.5	332
99.1	333	=== 2.3.3 Historical measuring distance, FPORT~=3 ===
97.1	334
99.1	335
113.6	336	DS20L stores sensor values and users can retrieve these history values via the [[downlink command>>\|\|anchor="H2.5.4Pollsensorvalue"]].
109.3	337
107.1	338	The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
97.1	339
109.10	340	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
99.1	341	\|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
	342	Size(bytes)
109.5	343	)))\|=(% 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	344	\|(% style="width:62.5px" %)Value\|(% style="width:62.5px" %)Interrupt flag & Interrupt_level\|(% style="width:62.5px" %)(((
	345	Reserve(0xFF)
	346	)))\|Distance\|Distance signal strength\|(% style="width:88px" %)(((
	347	LiDAR temp
	348	)))\|(% style="width:85px" %)Unix TimeStamp
97.1	349
99.1	350	Interrupt flag & Interrupt level:
	351
109.10	352	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
99.1	353	\|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
	354	Size(bit)
109.7	355	)))\|=(% 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	356	\|(% 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" %)(((
	357	Interrupt flag
	358	)))
	359
97.1	360	* (((
113.6	361	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	362	)))
	363
	364	For example, in the US915 band, the max payload for different DR is:
	365
	366	a) DR0: max is 11 bytes so one entry of data
	367
	368	b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
	369
	370	c) DR2: total payload includes 11 entries of data
	371
	372	d) DR3: total payload includes 22 entries of data.
	373
113.6	374	If DS20L doesn't have any data in the polling time. It will uplink 11 bytes of 0
97.1	375
	376
	377	Downlink:
	378
	379	0x31 64 CC 68 0C 64 CC 69 74 05
	380
	381	[[image:image-20230805144936-2.png\|\|height="113" width="746"]]
	382
	383	Uplink:
	384
	385	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
	386
	387
	388	Parsed Value:
	389
	390	[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
	391
	392
	393	[360,176,30,High,True,2023-08-04 02:53:00],
	394
	395	[355,168,30,Low,False,2023-08-04 02:53:29],
	396
	397	[245,211,30,Low,False,2023-08-04 02:54:29],
	398
	399	[57,700,30,Low,False,2023-08-04 02:55:29],
	400
	401	[361,164,30,Low,True,2023-08-04 02:56:00],
	402
	403	[337,184,30,Low,False,2023-08-04 02:56:40],
	404
	405	[20,4458,30,Low,False,2023-08-04 02:57:40],
	406
	407	[362,173,30,Low,False,2023-08-04 02:58:53],
	408
	409
107.1	410	History read from serial port：
97.1	411
	412	[[image:image-20230805145056-3.png]]
	413
	414
100.1	415	=== 2.3.4 Decode payload in The Things Network ===
82.8	416
	417
70.10	418	While using TTN network, you can add the payload format to decode the payload.
1.1	419
82.10	420	[[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	421
	422
62.5	423	(((
82.4	424	The payload decoder function for TTN is here:
62.5	425	)))
1.1	426
82.4	427	(((
113.6	428	DS20L TTN Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
82.4	429	)))
1.1	430
82.4	431
93.1	432	== 2.4 Show Data in DataCake IoT Server ==
1.1	433
	434
62.5	435	(((
70.10	436	[[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	437	)))
1.1	438
	439
62.5	440	(((
70.10	441	(% style="color:blue" %)Step 1(%%): Be sure that your device is programmed and properly connected to the network at this time.
62.5	442	)))
1.1	443
62.5	444	(((
70.10	445	(% 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	446	)))
14.26	447
55.1	448
70.10	449	[[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	450
	451
70.10	452	[[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	453
	454
70.10	455	(% style="color:blue" %)Step 3(%%): Create an account or log in Datacake.
1.1	456
113.6	457	(% style="color:blue" %)Step 4(%%): Search the DS20L and add DevEUI.
1.1	458
70.10	459	[[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	460
1.1	461
70.10	462	After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
1.1	463
120.2	464	[[image:1701152946067-561.png]]
1.1	465
	466
118.2	467	== 2.5 Frequency Plans ==
1.1	468
	469
113.7	470	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	471
	472	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
	473
	474
118.2	475	= 3. Configure DS20L =
82.4	476
16.4	477	== 3.1 Configure Methods ==
1.1	478
	479
113.7	480	DS20L supports below configure method:
1.1	481
	482	* AT Command via Bluetooth Connection (Recommended): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
67.20	483
11.1	484	* 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	485
1.1	486	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
	487
	488	== 3.2 General Commands ==
	489
	490
	491	These commands are to configure:
	492
	493	* General system settings like: uplink interval.
67.20	494
1.1	495	* LoRaWAN protocol & radio related command.
	496
	497	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	498
	499	[[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/]]
	500
	501
113.7	502	== 3.3 Commands special design for DS20L ==
1.1	503
	504
113.7	505	These commands only valid for DS20L, as below:
1.1	506
	507
	508	=== 3.3.1 Set Transmit Interval Time ===
	509
	510
62.5	511	(((
1.1	512	Feature: Change LoRaWAN End Node Transmit Interval.
62.5	513	)))
	514
	515	(((
1.1	516	(% style="color:blue" %)AT Command: AT+TDC
62.5	517	)))
1.1	518
14.34	519	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
82.16	520	\|=(% 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	521	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
	522	30000
	523	OK
	524	the interval is 30000ms = 30s
	525	)))
	526	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
	527	OK
	528	Set transmit interval to 60000ms = 60 seconds
	529	)))
	530
62.5	531	(((
1.1	532	(% style="color:blue" %)Downlink Command: 0x01
62.5	533	)))
1.1	534
62.5	535	(((
1.1	536	Format: Command Code (0x01) followed by 3 bytes time value.
62.5	537	)))
1.1	538
62.5	539	(((
1.1	540	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	541	)))
1.1	542
62.5	543	* (((
	544	Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	545	)))
	546	* (((
118.2	547	Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	548	)))
82.22	549
70.11	550	=== 3.3.2 Set Interrupt Mode ===
62.5	551
	552
109.1	553	Feature, Set Interrupt mode for pin of GPIO_EXTI.
1.1	554
107.1	555	When AT+INTMOD=0 is set, GPIO_EXTI is used as a digital input port.
46.1	556
1.1	557	(% style="color:blue" %)AT Command: AT+INTMOD
	558
14.34	559	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
82.16	560	\|=(% 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	561	\|(% style="width:154px" %)AT+INTMOD=?\|(% style="width:196px" %)Show current interrupt mode\|(% style="width:157px" %)(((
	562	0
	563	OK
	564	the mode is 0 =Disable Interrupt
	565	)))
107.1	566	\|(% style="width:154px" %)(((
118.2	567	AT+INTMOD=3
107.1	568
	569	(default)
	570	)))\|(% style="width:196px" %)(((
1.1	571	Set Transmit Interval
	572	0. (Disable Interrupt),
	573	~1. (Trigger by rising and falling edge)
	574	2. (Trigger by falling edge)
	575	3. (Trigger by rising edge)
	576	)))\|(% style="width:157px" %)OK
	577
	578	(% style="color:blue" %)Downlink Command: 0x06
	579
	580	Format: Command Code (0x06) followed by 3 bytes.
	581
	582	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	583
	584	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
62.6	585
1.1	586	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	587
118.2	588
	589	== 3.3.3 Set work mode ==
	590
	591
	592	Feature: Switch working mode
	593
	594	(% style="color:blue" %)AT Command: AT+MOD
	595
118.12	596	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
	597	\|=(% 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	598	\|(% style="width:162px" %)AT+MOD=?\|(% style="width:191px" %)Get the current working mode.\|(% style="width:106px" %)OK
	599	\|(% style="width:162px" %)AT+MOD=1\|(% style="width:191px" %)Set the working mode to Regular measurements.\|(% style="width:106px" %)(((
	600	OK
	601	Attention:Take effect after ATZ
	602	)))
	603
	604	(% style="color:blue" %)Downlink Command:
	605
	606	* Example: 0x0A00 ~/~/ Same as AT+MOD=0
	607
	608	* Example: 0x0A01 ~/~/ Same as AT+MOD=1
	609
	610	=== 3.3.4 Set threshold and threshold mode ===
	611
	612
	613	Feature, Set threshold and threshold mode
	614
118.9	615	When (% style="color:#037691" %)AT+DOL=0,0,0,0,400(%%) is set, No threshold is used, the sampling time is 400ms.
118.2	616
118.3	617	(% style="color:blue" %)AT Command: AT+DOL
118.2	618
118.17	619	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	620	\|(% 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	621	\|(% style="width:172px" %)AT+ DOL =?\|(% style="width:279px" %)Get the current threshold mode and sampling time\|(% style="width:118px" %)(((
	622	0,0,0,0,400
	623	OK
	624	)))
	625	\|(% style="width:172px" %)AT+ DOL =1,1800,100,0,400\|(% style="width:279px" %)Set only the upper and lower thresholds\|(% style="width:118px" %)OK
	626
	627
118.17	628
	629	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	630	\|(% 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
	631	\|(% style="width:251px" %)1: Use upper and lower limits
	632	\|(% style="width:251px" %)2: Less than the lower limit
	633	\|(% style="width:251px" %)3: Greater than the lower limit
	634	\|(% style="width:251px" %)4: Less than the upper limit
118.2	635	\|(% style="width:251px" %)5: Greater than the upper limit
	636	\|(% style="width:226px" %)The second bit sets the upper limit value\|(% style="width:251px" %)3~~2000MM
	637	\|(% style="width:226px" %)The third bit sets the lower limit value\|(% style="width:251px" %)3~~2000MM
	638	\|(% 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
	639	\|(% style="width:251px" %)1 Person or object counting statistics
	640	\|(% style="width:226px" %)The fifth bit sets the sampling time\|(% style="width:251px" %)(((
	641	0~~10000ms
	642
	643
	644	)))
	645
118.3	646	(% style="color:blue" %)Downlink Command: 0x07
118.2	647
	648	Format: Command Code (0x07) followed by 9bytes.
	649
	650	* Example 0: Downlink Payload: 070000000000000190 ~-~--> AT+MOD=0,0,0,0,400
118.3	651
118.2	652	* Example 1: Downlink Payload: 070107080064000190 ~-~--> AT+MOD=1,1800,100,0,400
	653
118.3	654
	655
16.4	656	= 4. Battery & Power Consumption =
14.45	657
1.1	658
113.7	659	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	660
	661	[[Battery Info & Power Consumption Analyze>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	662
	663
16.4	664	= 5. OTA Firmware update =
1.1	665
	666
13.1	667	(% class="wikigeneratedid" %)
113.7	668	User can change firmware DS20L to:
1.1	669
13.1	670	* Change Frequency band/ region.
62.7	671
13.1	672	* Update with new features.
62.7	673
13.1	674	* Fix bugs.
1.1	675
113.6	676	Firmware and changelog can be downloaded from : [[Firmware download link>>https://www.dropbox.com/sh/zqv1vt3komgp4tu/AAC33PnXIcWOVl_UXBEAeT_xa?dl=0]]
1.1	677
31.1	678	Methods to Update Firmware:
1.1	679
79.15	680	* (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	681
70.18	682	* 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	683
31.1	684	= 6. FAQ =
1.1	685
113.8	686	== 6.1 What is the frequency plan for DS20L? ==
1.1	687
62.7	688
113.8	689	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	690
1.1	691
80.4	692	= 7. Trouble Shooting =
1.1	693
80.4	694	== 7.1 AT Command input doesn't work ==
1.1	695
70.14	696
80.4	697	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	698
	699
80.4	700	== 7.2 Significant error between the output distant value of LiDAR and actual distance ==
70.14	701
	702
80.4	703	(((
82.21	704	(% 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	705	)))
70.14	706
80.4	707	(((
82.21	708	(% style="color:red" %)Troubleshooting(%%): Please avoid use of this product under such circumstance in practice.
80.4	709	)))
70.14	710
	711
80.4	712	(((
	713	(% style="color:blue" %)Cause ②(%%): The IR-pass filters are blocked.
	714	)))
70.14	715
79.7	716	(((
82.21	717	(% style="color:red" %)Troubleshooting(%%): please use dry dust-free cloth to gently remove the foreign matter.
79.7	718	)))
70.14	719
	720
	721	= 8. Order Info =
	722
	723
113.5	724	Part Number: (% style="color:blue" %)DS20L-XXX
70.14	725
70.12	726	(% style="color:red" %)XXX(%%): The default frequency band
1.1	727
38.1	728	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
1.1	729
38.1	730	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
1.1	731
38.1	732	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
1.1	733
38.1	734	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
1.1	735
38.1	736	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
1.1	737
38.1	738	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
1.1	739
38.1	740	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
1.1	741
38.1	742	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
1.1	743
70.14	744	= 9. Packing Info =
67.11	745
	746
39.1	747	(% style="color:#037691" %)Package Includes:
1.1	748
113.5	749	* DS20L LoRaWAN Smart Distance Detector x 1
1.1	750
39.1	751	(% style="color:#037691" %)Dimension and weight:
1.1	752
31.1	753	* Device Size: cm
1.1	754
31.1	755	* Device Weight: g
1.1	756
31.1	757	* Package Size / pcs : cm
1.1	758
31.1	759	* Weight / pcs : g
1.1	760
70.14	761	= 10. Support =
	762
	763
31.1	764	* 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	765
	766	* 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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