Wiki source code of LDDS75 - LoRaWAN Distance Detection Sensor User Manual

Version 144.1 by Xiaoling on 2022/06/10 17:29

version	line-number	content
2.2	1	(% style="text-align:center" %)
119.2	2	[[image:1654846127817-788.png]]
1.1	3
14.8	4	Contents:
1.1	5
	6
85.30	7
	8
	9
	10
87.3	11
109.9	12
91.2	13	= 1. Introduction =
2.2	14
119.3	15	== 1.1 What is LoRaWAN Distance Detection Sensor ==
2.2	16
73.13	17	(((
88.2	18
2.2	19
109.10	20	(((
119.6	21	The Dragino LDDS75 is a (% style="color:#4472c4" %) LoRaWAN Distance Detection Sensor(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:#4472c4" %) ultrasonic sensing (%%)technology for distance measurement, and (% style="color:#4472c4" %) temperature compensation(%%) is performed internally to improve the reliability of data. The LDDS75 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
2.2	22
	23
119.6	24	It detects the distance (% style="color:#4472c4" %) between the measured object and the sensor(%%), and uploads the value via wireless to LoRaWAN IoT Server.
2.2	25
88.2	26
119.3	27	The LoRa wireless technology used in LDDS75 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.
88.2	28
119.3	29
119.6	30	LDDS75 is powered by (% style="color:#4472c4" %) 4000mA or 8500mAh Li-SOCI2 battery(%%); It is designed for long term use up to 10 years*.
119.3	31
	32
	33	Each LDDS75 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on.
	34
	35
125.2	36	(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors
73.13	37	)))
109.10	38	)))
2.2	39
	40
120.2	41	[[image:1654847051249-359.png]]
2.2	42
	43
	44
91.2	45	== 1.2 Features ==
3.2	46
2.2	47	* LoRaWAN 1.0.3 Class A
120.3	48	* Ultra low power consumption
	49	* Distance Detection by Ultrasonic technology
	50	* Flat object range 280mm - 7500mm
	51	* Accuracy: ±(1cm+S*0.3%) (S: Distance)
	52	* Cable Length : 25cm
2.2	53	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
	54	* AT Commands to change parameters
	55	* Uplink on periodically
	56	* Downlink to change configure
120.3	57	* IP66 Waterproof Enclosure
	58	* 4000mAh or 8500mAh Battery for long term use
2.2	59
138.2	60
140.5	61
124.2	62	== 1.3 Specification ==
2.2	63
124.2	64	=== 1.3.1 Rated environmental conditions ===
3.3	65
124.2	66	[[image:image-20220610154839-1.png]]
89.3	67
124.2	68	Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);
90.2	69
124.2	70	b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)
90.2	71
	72
124.2	73
	74	=== 1.3.2 Effective measurement range Reference beam pattern ===
	75
138.8	76	(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.
124.2	77
	78
	79
140.2	80	[[image:1654852253176-749.png]]
138.8	81
	82
138.7	83	(2) *The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length width is 60cm * 50cm.**
124.2	84
	85
140.3	86	[[image:1654852175653-550.png]](% style="display:none" %)
124.2	87
140.2	88
138.3	89
91.2	90	== 1.5 Applications ==
90.2	91
91.2	92	* Horizontal distance measurement
124.2	93	* Liquid level measurement
91.2	94	* Parking management system
	95	* Object proximity and presence detection
	96	* Intelligent trash can management system
	97	* Robot obstacle avoidance
	98	* Automatic control
	99	* Sewer
124.2	100	* Bottom water level monitoring
2.2	101
138.3	102
140.4	103
108.3	104	== 1.6 Pin mapping and power on ==
	105
	106
124.2	107	[[image:1654847583902-256.png]]
91.2	108
	109
138.3	110
124.3	111	= 2. Configure LDDS75 to connect to LoRaWAN network =
2.2	112
108.3	113	== 2.1 How it works ==
	114
5.3	115	(((
124.4	116	The LDDS75 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
5.3	117	)))
2.2	118
5.3	119	(((
124.5	120	In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>\|\|anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS75.
5.3	121	)))
2.2	122
	123
138.4	124
108.3	125	== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
2.2	126
6.3	127	(((
2.2	128	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 [[LG308>>url:http://www.dragino.com/products/lora/item/140-lg308.html]] as a LoRaWAN gateway in this example.
6.3	129	)))
2.2	130
6.3	131	(((
125.2	132	[[image:1654848616367-242.png]]
6.3	133	)))
2.2	134
6.3	135	(((
2.2	136	The LG308 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.
6.3	137	)))
2.2	138
6.3	139	(((
125.2	140	(% style="color:blue" %)Step 1(%%): Create a device in TTN with the OTAA keys from LDDS75.
6.3	141	)))
2.2	142
6.3	143	(((
125.2	144	Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
6.3	145	)))
2.2	146
115.1	147	[[image:image-20220607170145-1.jpeg]]
2.2	148
	149
125.2	150	For OTAA registration, we need to set APP EUI/ APP KEY/ DEV EUI. Some server might no need to set APP EUI.
2.2	151
125.2	152	Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
2.2	153
132.2	154	Add APP EUI in the application
2.2	155
132.2	156	[[image:image-20220610161353-4.png]]
2.2	157
132.2	158	[[image:image-20220610161353-5.png]]
2.2	159
132.2	160	[[image:image-20220610161353-6.png]]
2.2	161
9.2	162
132.2	163	[[image:image-20220610161353-7.png]]
108.2	164
2.2	165
132.2	166	You can also choose to create the device manually.
2.2	167
132.2	168	[[image:image-20220610161538-8.png]]
2.2	169
108.2	170
2.2	171
132.2	172	Add APP KEY and DEV EUI
2.2	173
132.2	174	[[image:image-20220610161538-9.png]]
2.2	175
10.2	176
2.2	177
132.2	178	(% style="color:blue" %)Step 2(%%): Power on LDDS75
2.2	179
	180
	181	Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
	182
132.2	183	[[image:image-20220610161724-10.png]]
2.2	184
	185
73.14	186	(((
133.2	187	(% style="color:blue" %)Step 3(%%): The LDDS75 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
73.14	188	)))
2.2	189
133.2	190	[[image:1654849068701-275.png]]
2.2	191
	192
	193
108.4	194	== 2.3 Uplink Payload ==
2.2	195
73.14	196	(((
134.2	197	LDDS75 will uplink payload via LoRaWAN with below payload format:
2.2	198
133.3	199	Uplink payload includes in total 4 bytes.
	200	Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
73.14	201	)))
2.2	202
73.14	203	(((
109.2	204
73.14	205	)))
2.2	206
13.2	207	(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
85.8	208	\|=(% style="width: 62.5px;" %)(((
	209	Size (bytes)
133.4	210	)))\|=(% style="width: 62.5px;" %)2\|=2\|=1\|=2\|=1
	211	\|(% style="width:62.5px" %)Value\|(% style="width:62.5px" %)[[BAT>>\|\|anchor="H2.3.1A0BatteryInfo"]]\|(((
	212	[[Distance>>\|\|anchor="H2.3.3A0Distance"]]
2.2	213
133.4	214	(unit: mm)
	215	)))\|[[Digital Interrupt (Optional)>>\|\|anchor="H2.3.4A0Distancesignalstrength"]]\|(((
	216	[[Temperature (Optional )>>\|\|anchor="H2.3.5A0InterruptPin"]]
	217	)))\|[[Sensor Flag>>path:#Sensor_Flag]]
	218
134.2	219	[[image:1654850511545-399.png]]
2.2	220
	221
	222
109.4	223	=== 2.3.1 Battery Info ===
2.2	224
13.2	225
133.5	226	Check the battery voltage for LDDS75.
2.2	227
	228	Ex1: 0x0B45 = 2885mV
	229
	230	Ex2: 0x0B49 = 2889mV
	231
	232
	233
133.5	234	=== 2.3.2 Distance ===
2.2	235
133.5	236	Get the distance. Flat object range 280mm - 7500mm.
2.2	237
134.3	238	For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is(% style="color:#4472c4" %) 0B05(H) = 2821 (D) = 2821 mm.
13.2	239
2.2	240
133.5	241	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
	242	* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
2.2	243
138.6	244
	245
133.5	246	=== 2.3.3 Interrupt Pin ===
2.2	247
115.1	248	This data field shows if this packet is generated by interrupt or not. [[Click here>>\|\|anchor="H4.2A0SetInterruptMode"]] for the hardware and software set up.
2.2	249
13.3	250	Example:
2.2	251
	252	0x00: Normal uplink packet.
	253
	254	0x01: Interrupt Uplink Packet.
	255
	256
138.6	257
133.5	258	=== 2.3.4 DS18B20 Temperature sensor ===
2.2	259
133.5	260	This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
13.3	261
133.5	262	Example:
109.7	263
133.5	264	If payload is: 0105H: (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
109.7	265
133.5	266	If payload is: FF3FH : (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
109.7	267
133.6	268	(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
109.7	269
133.6	270
	271
133.5	272	=== 2.3.5 Sensor Flag ===
109.7	273
133.5	274	0x01: Detect Ultrasonic Sensor
2.2	275
133.5	276	0x00: No Ultrasonic Sensor
2.2	277
	278
133.5	279	===
	280	(% style="color:inherit; font-family:inherit" %)2.3.6 Decode payload in The Things Network(%%) ===
2.2	281
	282	While using TTN network, you can add the payload format to decode the payload.
	283
	284
135.2	285	[[image:1654850829385-439.png]]
2.2	286
135.2	287	The payload decoder function for TTN V3 is here:
2.2	288
135.2	289	LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
2.2	290
	291
	292
107.4	293	== 2.4 Uplink Interval ==
14.3	294
137.2	295	The LDDS75 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>>doc:Main.End Device AT Commands and Downlink Command.WebHome\|\|anchor="H4.1ChangeUplinkInterval"]]
2.2	296
	297
	298
107.4	299	== 2.5 Show Data in DataCake IoT Server ==
2.2	300
74.2	301	(((
2.2	302	[[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:
74.2	303	)))
2.2	304
74.2	305	(((
	306
	307	)))
2.2	308
74.2	309	(((
23.5	310	(% style="color:blue" %)Step 1(%%): Be sure that your device is programmed and properly connected to the network at this time.
74.2	311	)))
2.2	312
74.2	313	(((
23.5	314	(% 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:
74.2	315	)))
2.2	316
	317
115.1	318	[[image:1654592790040-760.png]]
2.2	319
	320
115.1	321	[[image:1654592800389-571.png]]
2.2	322
	323
23.5	324	(% style="color:blue" %)Step 3(%%): Create an account or log in Datacake.
2.2	325
137.2	326	(% style="color:blue" %)Step 4(%%): Search the LDDS75 and add DevEUI.
2.2	327
137.2	328	[[image:1654851029373-510.png]]
2.2	329
	330
137.2	331	After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
2.2	332
137.2	333	[[image:image-20220610165129-11.png\|\|height="595" width="1088"]]
2.2	334
	335
	336
100.7	337	== 2.6 Frequency Plans ==
	338
26.6	339	(((
137.3	340	The LDDS75 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.
26.6	341	)))
2.2	342
	343
137.5	344
100.7	345	=== 2.6.1 EU863-870 (EU868) ===
2.2	346
74.10	347	(((
26.5	348	(% style="color:blue" %)Uplink:
74.10	349	)))
26.5	350
74.10	351	(((
2.2	352	868.1 - SF7BW125 to SF12BW125
74.10	353	)))
2.2	354
74.10	355	(((
2.2	356	868.3 - SF7BW125 to SF12BW125 and SF7BW250
74.10	357	)))
2.2	358
74.10	359	(((
2.2	360	868.5 - SF7BW125 to SF12BW125
74.10	361	)))
2.2	362
74.10	363	(((
2.2	364	867.1 - SF7BW125 to SF12BW125
74.10	365	)))
2.2	366
74.10	367	(((
2.2	368	867.3 - SF7BW125 to SF12BW125
74.10	369	)))
2.2	370
74.10	371	(((
2.2	372	867.5 - SF7BW125 to SF12BW125
74.10	373	)))
2.2	374
74.10	375	(((
2.2	376	867.7 - SF7BW125 to SF12BW125
74.10	377	)))
2.2	378
74.10	379	(((
2.2	380	867.9 - SF7BW125 to SF12BW125
74.10	381	)))
2.2	382
74.10	383	(((
2.2	384	868.8 - FSK
74.10	385	)))
2.2	386
74.10	387	(((
	388
	389	)))
2.2	390
74.10	391	(((
26.5	392	(% style="color:blue" %)Downlink:
74.10	393	)))
2.2	394
74.10	395	(((
2.2	396	Uplink channels 1-9 (RX1)
74.10	397	)))
2.2	398
74.10	399	(((
2.2	400	869.525 - SF9BW125 (RX2 downlink only)
74.10	401	)))
2.2	402
	403
	404
100.9	405	=== 2.6.2 US902-928(US915) ===
26.5	406
	407	(((
137.3	408	Used in USA, Canada and South America. Default use CHE=2
2.2	409
137.3	410	(% style="color:blue" %)Uplink:
2.2	411
137.3	412	903.9 - SF7BW125 to SF10BW125
	413
	414	904.1 - SF7BW125 to SF10BW125
	415
	416	904.3 - SF7BW125 to SF10BW125
	417
	418	904.5 - SF7BW125 to SF10BW125
	419
	420	904.7 - SF7BW125 to SF10BW125
	421
	422	904.9 - SF7BW125 to SF10BW125
	423
	424	905.1 - SF7BW125 to SF10BW125
	425
	426	905.3 - SF7BW125 to SF10BW125
	427
	428
	429	(% style="color:blue" %)Downlink:
	430
	431	923.3 - SF7BW500 to SF12BW500
	432
	433	923.9 - SF7BW500 to SF12BW500
	434
	435	924.5 - SF7BW500 to SF12BW500
	436
	437	925.1 - SF7BW500 to SF12BW500
	438
	439	925.7 - SF7BW500 to SF12BW500
	440
	441	926.3 - SF7BW500 to SF12BW500
	442
	443	926.9 - SF7BW500 to SF12BW500
	444
	445	927.5 - SF7BW500 to SF12BW500
	446
	447	923.3 - SF12BW500(RX2 downlink only)
	448
	449
	450
26.5	451	)))
2.2	452
109.9	453	=== 2.6.3 CN470-510 (CN470) ===
100.9	454
74.11	455	(((
2.2	456	Used in China, Default use CHE=1
74.11	457	)))
2.2	458
74.11	459	(((
26.5	460	(% style="color:blue" %)Uplink:
74.11	461	)))
2.2	462
74.11	463	(((
2.2	464	486.3 - SF7BW125 to SF12BW125
74.11	465	)))
2.2	466
74.11	467	(((
2.2	468	486.5 - SF7BW125 to SF12BW125
74.11	469	)))
2.2	470
74.11	471	(((
2.2	472	486.7 - SF7BW125 to SF12BW125
74.11	473	)))
2.2	474
74.11	475	(((
2.2	476	486.9 - SF7BW125 to SF12BW125
74.11	477	)))
2.2	478
74.11	479	(((
2.2	480	487.1 - SF7BW125 to SF12BW125
74.11	481	)))
2.2	482
74.11	483	(((
2.2	484	487.3 - SF7BW125 to SF12BW125
74.11	485	)))
2.2	486
74.11	487	(((
2.2	488	487.5 - SF7BW125 to SF12BW125
74.11	489	)))
2.2	490
74.11	491	(((
2.2	492	487.7 - SF7BW125 to SF12BW125
74.11	493	)))
2.2	494
74.11	495	(((
	496
	497	)))
2.2	498
74.11	499	(((
26.5	500	(% style="color:blue" %)Downlink:
74.11	501	)))
2.2	502
74.11	503	(((
2.2	504	506.7 - SF7BW125 to SF12BW125
74.11	505	)))
2.2	506
74.11	507	(((
2.2	508	506.9 - SF7BW125 to SF12BW125
74.11	509	)))
2.2	510
74.11	511	(((
2.2	512	507.1 - SF7BW125 to SF12BW125
74.11	513	)))
2.2	514
74.11	515	(((
2.2	516	507.3 - SF7BW125 to SF12BW125
74.11	517	)))
2.2	518
74.11	519	(((
2.2	520	507.5 - SF7BW125 to SF12BW125
74.11	521	)))
2.2	522
74.11	523	(((
2.2	524	507.7 - SF7BW125 to SF12BW125
74.11	525	)))
2.2	526
74.11	527	(((
2.2	528	507.9 - SF7BW125 to SF12BW125
74.11	529	)))
2.2	530
74.11	531	(((
2.2	532	508.1 - SF7BW125 to SF12BW125
74.11	533	)))
2.2	534
74.11	535	(((
2.2	536	505.3 - SF12BW125 (RX2 downlink only)
74.11	537	)))
2.2	538
	539
	540
109.9	541	=== 2.6.4 AU915-928(AU915) ===
100.9	542
26.5	543	(((
137.4	544	Default use CHE=2
2.2	545
137.4	546	(% style="color:blue" %)Uplink:
2.2	547
137.4	548	916.8 - SF7BW125 to SF12BW125
	549
	550	917.0 - SF7BW125 to SF12BW125
	551
	552	917.2 - SF7BW125 to SF12BW125
	553
	554	917.4 - SF7BW125 to SF12BW125
	555
	556	917.6 - SF7BW125 to SF12BW125
	557
	558	917.8 - SF7BW125 to SF12BW125
	559
	560	918.0 - SF7BW125 to SF12BW125
	561
	562	918.2 - SF7BW125 to SF12BW125
	563
	564
	565	(% style="color:blue" %)Downlink:
	566
	567	923.3 - SF7BW500 to SF12BW500
	568
	569	923.9 - SF7BW500 to SF12BW500
	570
	571	924.5 - SF7BW500 to SF12BW500
	572
	573	925.1 - SF7BW500 to SF12BW500
	574
	575	925.7 - SF7BW500 to SF12BW500
	576
	577	926.3 - SF7BW500 to SF12BW500
	578
	579	926.9 - SF7BW500 to SF12BW500
	580
	581	927.5 - SF7BW500 to SF12BW500
	582
	583	923.3 - SF12BW500(RX2 downlink only)
	584
	585
26.5	586
	587	)))
2.2	588
109.9	589	=== 2.6.5 AS920-923 & AS923-925 (AS923) ===
100.9	590
74.9	591	(((
26.7	592	(% style="color:blue" %)Default Uplink channel:
74.9	593	)))
2.2	594
74.9	595	(((
2.2	596	923.2 - SF7BW125 to SF10BW125
74.9	597	)))
2.2	598
74.9	599	(((
2.2	600	923.4 - SF7BW125 to SF10BW125
74.9	601	)))
2.2	602
74.9	603	(((
	604
	605	)))
2.2	606
74.9	607	(((
26.7	608	(% style="color:blue" %)Additional Uplink Channel:
74.9	609	)))
2.2	610
74.9	611	(((
2.2	612	(OTAA mode, channel added by JoinAccept message)
74.9	613	)))
2.2	614
74.9	615	(((
	616
	617	)))
2.2	618
74.9	619	(((
26.7	620	(% style="color:blue" %)AS920~~AS923 for Japan, Malaysia, Singapore:
74.9	621	)))
26.7	622
74.9	623	(((
2.2	624	922.2 - SF7BW125 to SF10BW125
74.9	625	)))
2.2	626
74.9	627	(((
2.2	628	922.4 - SF7BW125 to SF10BW125
74.9	629	)))
2.2	630
74.9	631	(((
2.2	632	922.6 - SF7BW125 to SF10BW125
74.9	633	)))
2.2	634
74.9	635	(((
2.2	636	922.8 - SF7BW125 to SF10BW125
74.9	637	)))
2.2	638
74.9	639	(((
2.2	640	923.0 - SF7BW125 to SF10BW125
74.9	641	)))
2.2	642
74.9	643	(((
2.2	644	922.0 - SF7BW125 to SF10BW125
74.9	645	)))
2.2	646
74.9	647	(((
	648
	649	)))
2.2	650
74.9	651	(((
26.7	652	(% style="color:blue" %)AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam:
74.9	653	)))
2.2	654
74.9	655	(((
2.2	656	923.6 - SF7BW125 to SF10BW125
74.9	657	)))
2.2	658
74.9	659	(((
2.2	660	923.8 - SF7BW125 to SF10BW125
74.9	661	)))
2.2	662
74.9	663	(((
2.2	664	924.0 - SF7BW125 to SF10BW125
74.9	665	)))
2.2	666
74.9	667	(((
2.2	668	924.2 - SF7BW125 to SF10BW125
74.9	669	)))
2.2	670
74.9	671	(((
2.2	672	924.4 - SF7BW125 to SF10BW125
74.9	673	)))
2.2	674
74.9	675	(((
2.2	676	924.6 - SF7BW125 to SF10BW125
74.9	677	)))
2.2	678
74.9	679	(((
	680
	681	)))
2.2	682
74.9	683	(((
26.7	684	(% style="color:blue" %)Downlink:
74.9	685	)))
2.2	686
74.9	687	(((
2.2	688	Uplink channels 1-8 (RX1)
74.9	689	)))
2.2	690
74.9	691	(((
2.2	692	923.2 - SF10BW125 (RX2)
74.9	693	)))
2.2	694
	695
	696
109.9	697	=== 2.6.6 KR920-923 (KR920) ===
100.9	698
74.12	699	(((
26.7	700	(% style="color:blue" %)Default channel:
74.12	701	)))
26.7	702
74.12	703	(((
2.2	704	922.1 - SF7BW125 to SF12BW125
74.12	705	)))
2.2	706
74.12	707	(((
2.2	708	922.3 - SF7BW125 to SF12BW125
74.12	709	)))
2.2	710
74.12	711	(((
2.2	712	922.5 - SF7BW125 to SF12BW125
74.12	713	)))
2.2	714
74.12	715	(((
	716
	717	)))
2.2	718
74.12	719	(((
26.7	720	(% style="color:blue" %)Uplink: (OTAA mode, channel added by JoinAccept message)
74.12	721	)))
2.2	722
74.12	723	(((
2.2	724	922.1 - SF7BW125 to SF12BW125
74.12	725	)))
2.2	726
74.12	727	(((
2.2	728	922.3 - SF7BW125 to SF12BW125
74.12	729	)))
2.2	730
74.12	731	(((
2.2	732	922.5 - SF7BW125 to SF12BW125
74.12	733	)))
2.2	734
74.12	735	(((
2.2	736	922.7 - SF7BW125 to SF12BW125
74.12	737	)))
2.2	738
74.12	739	(((
2.2	740	922.9 - SF7BW125 to SF12BW125
74.12	741	)))
2.2	742
74.12	743	(((
2.2	744	923.1 - SF7BW125 to SF12BW125
74.12	745	)))
2.2	746
74.12	747	(((
2.2	748	923.3 - SF7BW125 to SF12BW125
74.12	749	)))
2.2	750
74.12	751	(((
	752
	753	)))
2.2	754
74.12	755	(((
26.7	756	(% style="color:blue" %)Downlink:
74.12	757	)))
2.2	758
74.12	759	(((
2.2	760	Uplink channels 1-7(RX1)
74.12	761	)))
2.2	762
74.12	763	(((
2.2	764	921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
74.12	765	)))
2.2	766
	767
35.6	768
109.9	769	=== 2.6.7 IN865-867 (IN865) ===
100.9	770
74.13	771	(((
26.7	772	(% style="color:blue" %)Uplink:
74.13	773	)))
2.2	774
74.13	775	(((
2.2	776	865.0625 - SF7BW125 to SF12BW125
74.13	777	)))
2.2	778
74.13	779	(((
2.2	780	865.4025 - SF7BW125 to SF12BW125
74.13	781	)))
2.2	782
74.13	783	(((
2.2	784	865.9850 - SF7BW125 to SF12BW125
74.13	785	)))
2.2	786
74.13	787	(((
	788
	789	)))
2.2	790
74.13	791	(((
26.7	792	(% style="color:blue" %)Downlink:
74.13	793	)))
2.2	794
74.13	795	(((
2.2	796	Uplink channels 1-3 (RX1)
74.13	797	)))
2.2	798
74.13	799	(((
2.2	800	866.550 - SF10BW125 (RX2)
74.13	801	)))
2.2	802
	803
	804
100.5	805	== 2.7 LED Indicator ==
26.7	806
143.2	807	The LDDS75 has an internal LED which is to show the status of different state.
2.2	808
143.2	809
	810	* Blink once when device power on.
	811	* The device detects the sensor and flashes 5 times.
	812	* Solid ON for 5 seconds once device successful Join the network.
2.2	813	* Blink once when device transmit a packet.
	814
143.2	815
	816
100.4	817	== 2.8 Firmware Change Log ==
2.2	818
26.15	819
143.2	820	Firmware download link: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
2.2	821
	822
115.1	823	Firmware Upgrade Method: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
2.2	824
	825
100.4	826
143.2	827	== 2.9 Mechanical ==
	828
	829
	830	[[image:image-20220610172003-1.png]]
	831
	832	[[image:image-20220610172003-2.png]]
	833
	834
	835	== 2.10 Battery Analysis ==
	836
	837	=== 2.10.1 Battery Type ===
	838
	839	The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
	840
	841
	842	The battery related documents as below:
	843
	844	* (((
	845	[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
	846	)))
	847	* (((
	848	[[Lithium-Thionyl Chloride Battery datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
	849	)))
	850	* (((
	851	[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
	852	)))
	853
	854	[[image:image-20220610172400-3.png]]
	855
	856
143.3	857
	858	=== 2.10.2 Replace the battery ===
	859
143.5	860	(((
143.3	861	You can change the battery in the LDDS75.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board.
111.31	862	)))
95.5	863
111.31	864	(((
143.5	865
111.31	866	)))
95.5	867
111.31	868	(((
143.5	869	The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can’t find this pack locally, they can find ER18505 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
111.31	870	)))
95.5	871
	872
	873
143.5	874	= 3. Configure LLDS12 via AT Command or LoRaWAN Downlink =
95.5	875
111.31	876	(((
	877	(((
94.6	878	Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
74.14	879	)))
111.32	880	)))
2.2	881
74.14	882	* (((
111.32	883	(((
115.1	884	AT Command Connection: See [[FAQ>>\|\|anchor="H7.A0FAQ"]].
74.14	885	)))
111.32	886	)))
74.14	887	* (((
111.32	888	(((
115.1	889	LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
74.14	890	)))
111.32	891	)))
2.2	892
74.14	893	(((
111.32	894	(((
94.6	895
111.32	896	)))
94.6	897
111.32	898	(((
94.9	899	There are two kinds of commands to configure LLDS12, they are:
74.14	900	)))
111.32	901	)))
2.2	902
74.14	903	* (((
111.32	904	(((
74.14	905	(% style="color:#4f81bd" %) General Commands.
	906	)))
111.32	907	)))
2.2	908
74.14	909	(((
111.32	910	(((
2.2	911	These commands are to configure:
74.14	912	)))
111.32	913	)))
2.2	914
74.14	915	* (((
111.32	916	(((
74.14	917	General system settings like: uplink interval.
	918	)))
111.32	919	)))
74.14	920	* (((
111.32	921	(((
74.14	922	LoRaWAN protocol & radio related command.
	923	)))
111.32	924	)))
2.2	925
74.14	926	(((
111.32	927	(((
115.1	928	They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
74.14	929	)))
111.32	930	)))
2.2	931
74.14	932	(((
111.32	933	(((
74.14	934
	935	)))
111.32	936	)))
2.2	937
74.14	938	* (((
111.32	939	(((
94.7	940	(% style="color:#4f81bd" %) Commands special design for LLDS12
74.14	941	)))
111.32	942	)))
2.2	943
74.14	944	(((
111.32	945	(((
94.9	946	These commands only valid for LLDS12, as below:
74.14	947	)))
111.32	948	)))
2.2	949
	950
	951
94.8	952	== 4.1 Set Transmit Interval Time ==
27.2	953
2.2	954	Feature: Change LoRaWAN End Node Transmit Interval.
	955
27.2	956	(% style="color:#037691" %)AT Command: AT+TDC
2.2	957
115.1	958	[[image:image-20220607171554-8.png]]
27.2	959
2.2	960
74.16	961	(((
27.2	962	(% style="color:#037691" %)Downlink Command: 0x01
74.16	963	)))
2.2	964
74.16	965	(((
2.2	966	Format: Command Code (0x01) followed by 3 bytes time value.
74.16	967	)))
2.2	968
74.15	969	(((
2.2	970	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
74.15	971	)))
2.2	972
74.16	973	* (((
	974	Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	975	)))
	976	* (((
	977	Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	978	)))
2.2	979
94.8	980	== 4.2 Set Interrupt Mode ==
27.3	981
2.2	982	Feature, Set Interrupt mode for GPIO_EXIT.
	983
27.3	984	(% style="color:#037691" %)AT Command: AT+INTMOD
2.2	985
115.1	986	[[image:image-20220610105806-2.png]]
2.2	987
	988
74.16	989	(((
27.3	990	(% style="color:#037691" %)Downlink Command: 0x06
74.16	991	)))
2.2	992
74.16	993	(((
2.2	994	Format: Command Code (0x06) followed by 3 bytes.
74.16	995	)))
2.2	996
74.16	997	(((
2.2	998	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
74.16	999	)))
2.2	1000
74.16	1001	* (((
	1002	Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	1003	)))
	1004	* (((
	1005	Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	1006	)))
2.2	1007
94.8	1008	== 4.3 Get Firmware Version Info ==
74.17	1009
2.2	1010	Feature: use downlink to get firmware version.
	1011
27.3	1012	(% style="color:#037691" %)Downlink Command: 0x26
2.2	1013
115.1	1014	[[image:image-20220607171917-10.png]]
2.2	1015
	1016	* Reply to the confirmation package: 26 01
	1017	* Reply to non-confirmed packet: 26 00
	1018
	1019	Device will send an uplink after got this downlink command. With below payload:
	1020
	1021	Configures info payload:
	1022
29.4	1023	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	1024	\|=(((
	1025	Size(bytes)
	1026	)))\|=1\|=1\|=1\|=1\|=1\|=5\|=1
2.2	1027	\|Value\|Software Type\|(((
	1028	Frequency
	1029
	1030	Band
	1031	)))\|Sub-band\|(((
	1032	Firmware
	1033
	1034	Version
	1035	)))\|Sensor Type\|Reserve\|(((
115.1	1036	[[Message Type>>\|\|anchor="H2.3.7A0MessageType"]]
2.2	1037	Always 0x02
	1038	)))
	1039
95.4	1040	Software Type: Always 0x03 for LLDS12
2.2	1041
	1042
	1043	Frequency Band:
	1044
	1045	*0x01: EU868
	1046
	1047	*0x02: US915
	1048
	1049	*0x03: IN865
	1050
	1051	*0x04: AU915
	1052
	1053	*0x05: KZ865
	1054
	1055	*0x06: RU864
	1056
	1057	*0x07: AS923
	1058
	1059	*0x08: AS923-1
	1060
	1061	*0x09: AS923-2
	1062
	1063	*0xa0: AS923-3
	1064
	1065
	1066	Sub-Band: value 0x00 ~~ 0x08
	1067
	1068
	1069	Firmware Version: 0x0100, Means: v1.0.0 version
	1070
	1071
	1072	Sensor Type:
	1073
	1074	0x01: LSE01
	1075
	1076	0x02: LDDS75
	1077
	1078	0x03: LDDS20
	1079
	1080	0x04: LLMS01
	1081
	1082	0x05: LSPH01
	1083
	1084	0x06: LSNPK01
	1085
95.4	1086	0x07: LLDS12
2.2	1087
	1088
	1089
94.5	1090	= 5. Battery & How to replace =
2.2	1091
94.5	1092	== 5.1 Battery Type ==
2.2	1093
30.2	1094	(((
94.5	1095	LLDS12 is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]. The battery is un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter.
30.2	1096	)))
2.2	1097
30.2	1098	(((
2.2	1099	The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
30.2	1100	)))
2.2	1101
115.1	1102	[[image:1654593587246-335.png]]
2.2	1103
	1104
94.5	1105	Minimum Working Voltage for the LLDS12:
2.2	1106
94.5	1107	LLDS12: 2.45v ~~ 3.6v
2.2	1108
	1109
	1110
94.5	1111	== 5.2 Replace Battery ==
30.3	1112
30.5	1113	(((
2.2	1114	Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
30.5	1115	)))
2.2	1116
30.5	1117	(((
2.2	1118	And make sure the positive and negative pins match.
30.5	1119	)))
2.2	1120
	1121
	1122
94.5	1123	== 5.3 Power Consumption Analyze ==
2.2	1124
30.5	1125	(((
2.2	1126	Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
30.5	1127	)))
2.2	1128
30.5	1129	(((
2.2	1130	Instruction to use as below:
30.5	1131	)))
2.2	1132
	1133
32.3	1134	Step 1: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
2.2	1135
	1136	[[https:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
	1137
	1138
32.3	1139	Step 2: Open it and choose
2.2	1140
	1141	* Product Model
	1142	* Uplink Interval
	1143	* Working Mode
	1144
	1145	And the Life expectation in difference case will be shown on the right.
	1146
115.1	1147	[[image:1654593605679-189.png]]
2.2	1148
	1149
	1150	The battery related documents as below:
	1151
32.2	1152	* (((
	1153	[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
2.2	1154	)))
32.2	1155	* (((
	1156	[[Lithium-Thionyl Chloride Battery datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
	1157	)))
	1158	* (((
	1159	[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
	1160	)))
2.2	1161
115.1	1162	[[image:image-20220607172042-11.png]]
2.2	1163
	1164
	1165
94.5	1166	=== 5.3.1 Battery Note ===
2.2	1167
32.4	1168	(((
2.2	1169	The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
32.4	1170	)))
2.2	1171
	1172
	1173
94.5	1174	=== 5.3.2 Replace the battery ===
32.4	1175
74.20	1176	(((
94.5	1177	You can change the battery in the LLDS12.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board.
74.20	1178	)))
2.2	1179
74.20	1180	(((
94.5	1181	The default battery pack of LLDS12 includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
74.20	1182	)))
2.2	1183
	1184
	1185
94.4	1186	= 6. Use AT Command =
2.2	1187
94.4	1188	== 6.1 Access AT Commands ==
2.2	1189
94.5	1190	LLDS12 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LLDS12 for using AT command, as below.
2.2	1191
115.1	1192	[[image:1654593668970-604.png]]
2.2	1193
34.6	1194	Connection:
2.2	1195
34.2	1196	(% style="background-color:yellow" %) USB TTL GND <~-~-~-~-> GND
2.2	1197
34.2	1198	(% style="background-color:yellow" %) USB TTL TXD <~-~-~-~-> UART_RXD
2.2	1199
34.2	1200	(% style="background-color:yellow" %) USB TTL RXD <~-~-~-~-> UART_TXD
2.2	1201
	1202
74.21	1203	(((
111.33	1204	(((
111.23	1205	In the PC, you need to set the serial baud rate to (% style="color:green" %)9600(%%) to access the serial console for LLDS12.
111.33	1206	)))
111.23	1207
111.33	1208	(((
111.23	1209	LLDS12 will output system info once power on as below:
74.21	1210	)))
111.33	1211	)))
2.2	1212
	1213
115.1	1214	[[image:1654593712276-618.png]]
2.2	1215
115.1	1216	Valid AT Command please check [[Configure Device>>\|\|anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
2.2	1217
	1218
94.3	1219	= 7. FAQ =
2.2	1220
94.3	1221	== 7.1 How to change the LoRa Frequency Bands/Region ==
34.7	1222
115.1	1223	You can follow the instructions for [[how to upgrade image>>\|\|anchor="H2.8A0200BFirmwareChangeLog"]].
2.2	1224	When downloading the images, choose the required image file for download.
	1225
	1226
93.7	1227	= 8. Trouble Shooting =
2.2	1228
93.6	1229	== 8.1 AT Commands input doesn’t work ==
34.7	1230
93.12	1231
111.34	1232	(((
34.9	1233	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:green" %)ENTER(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)ENTER(%%) while press the send key, user need to add ENTER in their string.
111.34	1234	)))
2.2	1235
	1236
93.6	1237	== 8.2 Significant error between the output distant value of LiDAR and actual distance ==
85.21	1238
2.2	1239
93.10	1240	(((
	1241	(% 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.)
	1242	)))
93.9	1243
93.10	1244	(((
93.6	1245	Troubleshooting: Please avoid use of this product under such circumstance in practice.
93.10	1246	)))
93.6	1247
93.10	1248	(((
	1249
	1250	)))
93.6	1251
93.10	1252	(((
	1253	(% style="color:blue" %)Cause ②(%%): The IR-pass filters are blocked.
	1254	)))
93.6	1255
93.10	1256	(((
	1257	Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
	1258	)))
93.6	1259
	1260
93.11	1261
93.6	1262	= 9. Order Info =
	1263
93.13	1264
93.5	1265	Part Number: (% style="color:blue" %)LLDS12-XX
2.2	1266
	1267
34.9	1268	(% style="color:blue" %)XX(%%): The default frequency band
2.2	1269
34.13	1270	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
34.9	1271	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	1272	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	1273	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	1274	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	1275	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
34.13	1276	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
34.9	1277	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
2.2	1278
93.6	1279	= 10. Packing Info =
34.9	1280
	1281
2.2	1282	Package Includes:
	1283
93.4	1284	* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
2.2	1285
	1286	Dimension and weight:
	1287
	1288	* Device Size: cm
	1289	* Device Weight: g
	1290	* Package Size / pcs : cm
	1291	* Weight / pcs : g
	1292
93.6	1293	= 11. Support =
2.2	1294
	1295	* 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.
34.12	1296	* 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.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]].

Wiki source code of LDDS75 - LoRaWAN Distance Detection Sensor User Manual

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