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

Version 149.5 by Xiaoling on 2022/06/10 17:57

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
124.2	60	== 1.3 Specification ==
2.2	61
124.2	62	=== 1.3.1 Rated environmental conditions ===
3.3	63
124.2	64	[[image:image-20220610154839-1.png]]
89.3	65
124.2	66	Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);
90.2	67
124.2	68	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	69
	70
124.2	71
	72	=== 1.3.2 Effective measurement range Reference beam pattern ===
	73
138.8	74	(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	75
	76
	77
140.2	78	[[image:1654852253176-749.png]]
138.8	79
	80
138.7	81	(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	82
	83
140.3	84	[[image:1654852175653-550.png]](% style="display:none" %)
124.2	85
140.2	86
138.3	87
91.2	88	== 1.5 Applications ==
90.2	89
91.2	90	* Horizontal distance measurement
124.2	91	* Liquid level measurement
91.2	92	* Parking management system
	93	* Object proximity and presence detection
	94	* Intelligent trash can management system
	95	* Robot obstacle avoidance
	96	* Automatic control
	97	* Sewer
124.2	98	* Bottom water level monitoring
2.2	99
108.3	100	== 1.6 Pin mapping and power on ==
	101
	102
124.2	103	[[image:1654847583902-256.png]]
91.2	104
	105
138.3	106
124.3	107	= 2. Configure LDDS75 to connect to LoRaWAN network =
2.2	108
108.3	109	== 2.1 How it works ==
	110
5.3	111	(((
124.4	112	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	113	)))
2.2	114
5.3	115	(((
124.5	116	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	117	)))
2.2	118
	119
138.4	120
108.3	121	== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
2.2	122
6.3	123	(((
2.2	124	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	125	)))
2.2	126
6.3	127	(((
125.2	128	[[image:1654848616367-242.png]]
6.3	129	)))
2.2	130
6.3	131	(((
2.2	132	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	133	)))
2.2	134
6.3	135	(((
125.2	136	(% style="color:blue" %)Step 1(%%): Create a device in TTN with the OTAA keys from LDDS75.
6.3	137	)))
2.2	138
6.3	139	(((
125.2	140	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	141	)))
2.2	142
115.1	143	[[image:image-20220607170145-1.jpeg]]
2.2	144
	145
125.2	146	For OTAA registration, we need to set APP EUI/ APP KEY/ DEV EUI. Some server might no need to set APP EUI.
2.2	147
125.2	148	Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
2.2	149
132.2	150	Add APP EUI in the application
2.2	151
132.2	152	[[image:image-20220610161353-4.png]]
2.2	153
132.2	154	[[image:image-20220610161353-5.png]]
2.2	155
132.2	156	[[image:image-20220610161353-6.png]]
2.2	157
9.2	158
132.2	159	[[image:image-20220610161353-7.png]]
108.2	160
2.2	161
132.2	162	You can also choose to create the device manually.
2.2	163
132.2	164	[[image:image-20220610161538-8.png]]
2.2	165
108.2	166
2.2	167
132.2	168	Add APP KEY and DEV EUI
2.2	169
132.2	170	[[image:image-20220610161538-9.png]]
2.2	171
10.2	172
2.2	173
132.2	174	(% style="color:blue" %)Step 2(%%): Power on LDDS75
2.2	175
	176
	177	Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
	178
132.2	179	[[image:image-20220610161724-10.png]]
2.2	180
	181
73.14	182	(((
133.2	183	(% 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	184	)))
2.2	185
133.2	186	[[image:1654849068701-275.png]]
2.2	187
	188
	189
108.4	190	== 2.3 Uplink Payload ==
2.2	191
73.14	192	(((
134.2	193	LDDS75 will uplink payload via LoRaWAN with below payload format:
2.2	194
133.3	195	Uplink payload includes in total 4 bytes.
	196	Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
73.14	197	)))
2.2	198
73.14	199	(((
109.2	200
73.14	201	)))
2.2	202
13.2	203	(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
85.8	204	\|=(% style="width: 62.5px;" %)(((
	205	Size (bytes)
133.4	206	)))\|=(% style="width: 62.5px;" %)2\|=2\|=1\|=2\|=1
	207	\|(% style="width:62.5px" %)Value\|(% style="width:62.5px" %)[[BAT>>\|\|anchor="H2.3.1A0BatteryInfo"]]\|(((
	208	[[Distance>>\|\|anchor="H2.3.3A0Distance"]]
2.2	209
133.4	210	(unit: mm)
	211	)))\|[[Digital Interrupt (Optional)>>\|\|anchor="H2.3.4A0Distancesignalstrength"]]\|(((
	212	[[Temperature (Optional )>>\|\|anchor="H2.3.5A0InterruptPin"]]
	213	)))\|[[Sensor Flag>>path:#Sensor_Flag]]
	214
134.2	215	[[image:1654850511545-399.png]]
2.2	216
	217
	218
109.4	219	=== 2.3.1 Battery Info ===
2.2	220
13.2	221
133.5	222	Check the battery voltage for LDDS75.
2.2	223
	224	Ex1: 0x0B45 = 2885mV
	225
	226	Ex2: 0x0B49 = 2889mV
	227
	228
	229
133.5	230	=== 2.3.2 Distance ===
2.2	231
133.5	232	Get the distance. Flat object range 280mm - 7500mm.
2.2	233
134.3	234	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	235
2.2	236
133.5	237	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
	238	* 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	239
133.5	240	=== 2.3.3 Interrupt Pin ===
2.2	241
115.1	242	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	243
13.3	244	Example:
2.2	245
	246	0x00: Normal uplink packet.
	247
	248	0x01: Interrupt Uplink Packet.
	249
	250
138.6	251
133.5	252	=== 2.3.4 DS18B20 Temperature sensor ===
2.2	253
133.5	254	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	255
133.5	256	Example:
109.7	257
133.5	258	If payload is: 0105H: (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
109.7	259
133.5	260	If payload is: FF3FH : (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
109.7	261
133.6	262	(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
109.7	263
133.6	264
	265
133.5	266	=== 2.3.5 Sensor Flag ===
109.7	267
133.5	268	0x01: Detect Ultrasonic Sensor
2.2	269
133.5	270	0x00: No Ultrasonic Sensor
2.2	271
	272
133.5	273	===
	274	(% style="color:inherit; font-family:inherit" %)2.3.6 Decode payload in The Things Network(%%) ===
2.2	275
	276	While using TTN network, you can add the payload format to decode the payload.
	277
	278
135.2	279	[[image:1654850829385-439.png]]
2.2	280
135.2	281	The payload decoder function for TTN V3 is here:
2.2	282
135.2	283	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	284
	285
	286
107.4	287	== 2.4 Uplink Interval ==
14.3	288
137.2	289	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	290
	291
	292
107.4	293	== 2.5 Show Data in DataCake IoT Server ==
2.2	294
74.2	295	(((
2.2	296	[[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	297	)))
2.2	298
74.2	299	(((
	300
	301	)))
2.2	302
74.2	303	(((
23.5	304	(% style="color:blue" %)Step 1(%%): Be sure that your device is programmed and properly connected to the network at this time.
74.2	305	)))
2.2	306
74.2	307	(((
23.5	308	(% 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	309	)))
2.2	310
	311
115.1	312	[[image:1654592790040-760.png]]
2.2	313
	314
115.1	315	[[image:1654592800389-571.png]]
2.2	316
	317
23.5	318	(% style="color:blue" %)Step 3(%%): Create an account or log in Datacake.
2.2	319
137.2	320	(% style="color:blue" %)Step 4(%%): Search the LDDS75 and add DevEUI.
2.2	321
137.2	322	[[image:1654851029373-510.png]]
2.2	323
	324
137.2	325	After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
2.2	326
137.2	327	[[image:image-20220610165129-11.png\|\|height="595" width="1088"]]
2.2	328
	329
	330
100.7	331	== 2.6 Frequency Plans ==
	332
26.6	333	(((
137.3	334	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	335	)))
2.2	336
	337
137.5	338
100.7	339	=== 2.6.1 EU863-870 (EU868) ===
2.2	340
74.10	341	(((
26.5	342	(% style="color:blue" %)Uplink:
74.10	343	)))
26.5	344
74.10	345	(((
2.2	346	868.1 - SF7BW125 to SF12BW125
74.10	347	)))
2.2	348
74.10	349	(((
2.2	350	868.3 - SF7BW125 to SF12BW125 and SF7BW250
74.10	351	)))
2.2	352
74.10	353	(((
2.2	354	868.5 - SF7BW125 to SF12BW125
74.10	355	)))
2.2	356
74.10	357	(((
2.2	358	867.1 - SF7BW125 to SF12BW125
74.10	359	)))
2.2	360
74.10	361	(((
2.2	362	867.3 - SF7BW125 to SF12BW125
74.10	363	)))
2.2	364
74.10	365	(((
2.2	366	867.5 - SF7BW125 to SF12BW125
74.10	367	)))
2.2	368
74.10	369	(((
2.2	370	867.7 - SF7BW125 to SF12BW125
74.10	371	)))
2.2	372
74.10	373	(((
2.2	374	867.9 - SF7BW125 to SF12BW125
74.10	375	)))
2.2	376
74.10	377	(((
2.2	378	868.8 - FSK
74.10	379	)))
2.2	380
74.10	381	(((
	382
	383	)))
2.2	384
74.10	385	(((
26.5	386	(% style="color:blue" %)Downlink:
74.10	387	)))
2.2	388
74.10	389	(((
2.2	390	Uplink channels 1-9 (RX1)
74.10	391	)))
2.2	392
74.10	393	(((
2.2	394	869.525 - SF9BW125 (RX2 downlink only)
74.10	395	)))
2.2	396
	397
	398
100.9	399	=== 2.6.2 US902-928(US915) ===
26.5	400
	401	(((
137.3	402	Used in USA, Canada and South America. Default use CHE=2
2.2	403
137.3	404	(% style="color:blue" %)Uplink:
2.2	405
137.3	406	903.9 - SF7BW125 to SF10BW125
	407
	408	904.1 - SF7BW125 to SF10BW125
	409
	410	904.3 - SF7BW125 to SF10BW125
	411
	412	904.5 - SF7BW125 to SF10BW125
	413
	414	904.7 - SF7BW125 to SF10BW125
	415
	416	904.9 - SF7BW125 to SF10BW125
	417
	418	905.1 - SF7BW125 to SF10BW125
	419
	420	905.3 - SF7BW125 to SF10BW125
	421
	422
	423	(% style="color:blue" %)Downlink:
	424
	425	923.3 - SF7BW500 to SF12BW500
	426
	427	923.9 - SF7BW500 to SF12BW500
	428
	429	924.5 - SF7BW500 to SF12BW500
	430
	431	925.1 - SF7BW500 to SF12BW500
	432
	433	925.7 - SF7BW500 to SF12BW500
	434
	435	926.3 - SF7BW500 to SF12BW500
	436
	437	926.9 - SF7BW500 to SF12BW500
	438
	439	927.5 - SF7BW500 to SF12BW500
	440
	441	923.3 - SF12BW500(RX2 downlink only)
	442
	443
	444
26.5	445	)))
2.2	446
109.9	447	=== 2.6.3 CN470-510 (CN470) ===
100.9	448
74.11	449	(((
2.2	450	Used in China, Default use CHE=1
74.11	451	)))
2.2	452
74.11	453	(((
26.5	454	(% style="color:blue" %)Uplink:
74.11	455	)))
2.2	456
74.11	457	(((
2.2	458	486.3 - SF7BW125 to SF12BW125
74.11	459	)))
2.2	460
74.11	461	(((
2.2	462	486.5 - SF7BW125 to SF12BW125
74.11	463	)))
2.2	464
74.11	465	(((
2.2	466	486.7 - SF7BW125 to SF12BW125
74.11	467	)))
2.2	468
74.11	469	(((
2.2	470	486.9 - SF7BW125 to SF12BW125
74.11	471	)))
2.2	472
74.11	473	(((
2.2	474	487.1 - SF7BW125 to SF12BW125
74.11	475	)))
2.2	476
74.11	477	(((
2.2	478	487.3 - SF7BW125 to SF12BW125
74.11	479	)))
2.2	480
74.11	481	(((
2.2	482	487.5 - SF7BW125 to SF12BW125
74.11	483	)))
2.2	484
74.11	485	(((
2.2	486	487.7 - SF7BW125 to SF12BW125
74.11	487	)))
2.2	488
74.11	489	(((
	490
	491	)))
2.2	492
74.11	493	(((
26.5	494	(% style="color:blue" %)Downlink:
74.11	495	)))
2.2	496
74.11	497	(((
2.2	498	506.7 - SF7BW125 to SF12BW125
74.11	499	)))
2.2	500
74.11	501	(((
2.2	502	506.9 - SF7BW125 to SF12BW125
74.11	503	)))
2.2	504
74.11	505	(((
2.2	506	507.1 - SF7BW125 to SF12BW125
74.11	507	)))
2.2	508
74.11	509	(((
2.2	510	507.3 - SF7BW125 to SF12BW125
74.11	511	)))
2.2	512
74.11	513	(((
2.2	514	507.5 - SF7BW125 to SF12BW125
74.11	515	)))
2.2	516
74.11	517	(((
2.2	518	507.7 - SF7BW125 to SF12BW125
74.11	519	)))
2.2	520
74.11	521	(((
2.2	522	507.9 - SF7BW125 to SF12BW125
74.11	523	)))
2.2	524
74.11	525	(((
2.2	526	508.1 - SF7BW125 to SF12BW125
74.11	527	)))
2.2	528
74.11	529	(((
2.2	530	505.3 - SF12BW125 (RX2 downlink only)
74.11	531	)))
2.2	532
	533
	534
109.9	535	=== 2.6.4 AU915-928(AU915) ===
100.9	536
26.5	537	(((
137.4	538	Default use CHE=2
2.2	539
137.4	540	(% style="color:blue" %)Uplink:
2.2	541
137.4	542	916.8 - SF7BW125 to SF12BW125
	543
	544	917.0 - SF7BW125 to SF12BW125
	545
	546	917.2 - SF7BW125 to SF12BW125
	547
	548	917.4 - SF7BW125 to SF12BW125
	549
	550	917.6 - SF7BW125 to SF12BW125
	551
	552	917.8 - SF7BW125 to SF12BW125
	553
	554	918.0 - SF7BW125 to SF12BW125
	555
	556	918.2 - SF7BW125 to SF12BW125
	557
	558
	559	(% style="color:blue" %)Downlink:
	560
	561	923.3 - SF7BW500 to SF12BW500
	562
	563	923.9 - SF7BW500 to SF12BW500
	564
	565	924.5 - SF7BW500 to SF12BW500
	566
	567	925.1 - SF7BW500 to SF12BW500
	568
	569	925.7 - SF7BW500 to SF12BW500
	570
	571	926.3 - SF7BW500 to SF12BW500
	572
	573	926.9 - SF7BW500 to SF12BW500
	574
	575	927.5 - SF7BW500 to SF12BW500
	576
	577	923.3 - SF12BW500(RX2 downlink only)
	578
	579
26.5	580
	581	)))
2.2	582
109.9	583	=== 2.6.5 AS920-923 & AS923-925 (AS923) ===
100.9	584
74.9	585	(((
26.7	586	(% style="color:blue" %)Default Uplink channel:
74.9	587	)))
2.2	588
74.9	589	(((
2.2	590	923.2 - SF7BW125 to SF10BW125
74.9	591	)))
2.2	592
74.9	593	(((
2.2	594	923.4 - SF7BW125 to SF10BW125
74.9	595	)))
2.2	596
74.9	597	(((
	598
	599	)))
2.2	600
74.9	601	(((
26.7	602	(% style="color:blue" %)Additional Uplink Channel:
74.9	603	)))
2.2	604
74.9	605	(((
2.2	606	(OTAA mode, channel added by JoinAccept message)
74.9	607	)))
2.2	608
74.9	609	(((
	610
	611	)))
2.2	612
74.9	613	(((
26.7	614	(% style="color:blue" %)AS920~~AS923 for Japan, Malaysia, Singapore:
74.9	615	)))
26.7	616
74.9	617	(((
2.2	618	922.2 - SF7BW125 to SF10BW125
74.9	619	)))
2.2	620
74.9	621	(((
2.2	622	922.4 - SF7BW125 to SF10BW125
74.9	623	)))
2.2	624
74.9	625	(((
2.2	626	922.6 - SF7BW125 to SF10BW125
74.9	627	)))
2.2	628
74.9	629	(((
2.2	630	922.8 - SF7BW125 to SF10BW125
74.9	631	)))
2.2	632
74.9	633	(((
2.2	634	923.0 - SF7BW125 to SF10BW125
74.9	635	)))
2.2	636
74.9	637	(((
2.2	638	922.0 - SF7BW125 to SF10BW125
74.9	639	)))
2.2	640
74.9	641	(((
	642
	643	)))
2.2	644
74.9	645	(((
26.7	646	(% style="color:blue" %)AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam:
74.9	647	)))
2.2	648
74.9	649	(((
2.2	650	923.6 - SF7BW125 to SF10BW125
74.9	651	)))
2.2	652
74.9	653	(((
2.2	654	923.8 - SF7BW125 to SF10BW125
74.9	655	)))
2.2	656
74.9	657	(((
2.2	658	924.0 - SF7BW125 to SF10BW125
74.9	659	)))
2.2	660
74.9	661	(((
2.2	662	924.2 - SF7BW125 to SF10BW125
74.9	663	)))
2.2	664
74.9	665	(((
2.2	666	924.4 - SF7BW125 to SF10BW125
74.9	667	)))
2.2	668
74.9	669	(((
2.2	670	924.6 - SF7BW125 to SF10BW125
74.9	671	)))
2.2	672
74.9	673	(((
	674
	675	)))
2.2	676
74.9	677	(((
26.7	678	(% style="color:blue" %)Downlink:
74.9	679	)))
2.2	680
74.9	681	(((
2.2	682	Uplink channels 1-8 (RX1)
74.9	683	)))
2.2	684
74.9	685	(((
2.2	686	923.2 - SF10BW125 (RX2)
74.9	687	)))
2.2	688
	689
	690
109.9	691	=== 2.6.6 KR920-923 (KR920) ===
100.9	692
74.12	693	(((
26.7	694	(% style="color:blue" %)Default channel:
74.12	695	)))
26.7	696
74.12	697	(((
2.2	698	922.1 - SF7BW125 to SF12BW125
74.12	699	)))
2.2	700
74.12	701	(((
2.2	702	922.3 - SF7BW125 to SF12BW125
74.12	703	)))
2.2	704
74.12	705	(((
2.2	706	922.5 - SF7BW125 to SF12BW125
74.12	707	)))
2.2	708
74.12	709	(((
	710
	711	)))
2.2	712
74.12	713	(((
26.7	714	(% style="color:blue" %)Uplink: (OTAA mode, channel added by JoinAccept message)
74.12	715	)))
2.2	716
74.12	717	(((
2.2	718	922.1 - SF7BW125 to SF12BW125
74.12	719	)))
2.2	720
74.12	721	(((
2.2	722	922.3 - SF7BW125 to SF12BW125
74.12	723	)))
2.2	724
74.12	725	(((
2.2	726	922.5 - SF7BW125 to SF12BW125
74.12	727	)))
2.2	728
74.12	729	(((
2.2	730	922.7 - SF7BW125 to SF12BW125
74.12	731	)))
2.2	732
74.12	733	(((
2.2	734	922.9 - SF7BW125 to SF12BW125
74.12	735	)))
2.2	736
74.12	737	(((
2.2	738	923.1 - SF7BW125 to SF12BW125
74.12	739	)))
2.2	740
74.12	741	(((
2.2	742	923.3 - SF7BW125 to SF12BW125
74.12	743	)))
2.2	744
74.12	745	(((
	746
	747	)))
2.2	748
74.12	749	(((
26.7	750	(% style="color:blue" %)Downlink:
74.12	751	)))
2.2	752
74.12	753	(((
2.2	754	Uplink channels 1-7(RX1)
74.12	755	)))
2.2	756
74.12	757	(((
2.2	758	921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
74.12	759	)))
2.2	760
	761
35.6	762
109.9	763	=== 2.6.7 IN865-867 (IN865) ===
100.9	764
74.13	765	(((
26.7	766	(% style="color:blue" %)Uplink:
74.13	767	)))
2.2	768
74.13	769	(((
2.2	770	865.0625 - SF7BW125 to SF12BW125
74.13	771	)))
2.2	772
74.13	773	(((
2.2	774	865.4025 - SF7BW125 to SF12BW125
74.13	775	)))
2.2	776
74.13	777	(((
2.2	778	865.9850 - SF7BW125 to SF12BW125
74.13	779	)))
2.2	780
74.13	781	(((
	782
	783	)))
2.2	784
74.13	785	(((
26.7	786	(% style="color:blue" %)Downlink:
74.13	787	)))
2.2	788
74.13	789	(((
2.2	790	Uplink channels 1-3 (RX1)
74.13	791	)))
2.2	792
74.13	793	(((
2.2	794	866.550 - SF10BW125 (RX2)
74.13	795	)))
2.2	796
	797
	798
100.5	799	== 2.7 LED Indicator ==
26.7	800
143.2	801	The LDDS75 has an internal LED which is to show the status of different state.
2.2	802
143.2	803
	804	* Blink once when device power on.
	805	* The device detects the sensor and flashes 5 times.
	806	* Solid ON for 5 seconds once device successful Join the network.
2.2	807	* Blink once when device transmit a packet.
	808
100.4	809	== 2.8 Firmware Change Log ==
2.2	810
26.15	811
143.2	812	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	813
	814
115.1	815	Firmware Upgrade Method: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
2.2	816
	817
100.4	818
143.2	819	== 2.9 Mechanical ==
	820
	821
	822	[[image:image-20220610172003-1.png]]
	823
	824	[[image:image-20220610172003-2.png]]
	825
	826
147.5	827	== 2.10 Battery Analysis ==
143.2	828
	829	=== 2.10.1 Battery Type ===
	830
	831	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.
	832
	833
	834	The battery related documents as below:
	835
	836	* (((
	837	[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
	838	)))
	839	* (((
	840	[[Lithium-Thionyl Chloride Battery datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
	841	)))
	842	* (((
	843	[[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]]
	844	)))
	845
	846	[[image:image-20220610172400-3.png]]
	847
	848
143.3	849
	850	=== 2.10.2 Replace the battery ===
	851
143.5	852	(((
143.3	853	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	854	)))
95.5	855
111.31	856	(((
143.5	857
111.31	858	)))
95.5	859
111.31	860	(((
143.5	861	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	862	)))
95.5	863
	864
	865
143.5	866	= 3. Configure LLDS12 via AT Command or LoRaWAN Downlink =
95.5	867
111.31	868	(((
	869	(((
147.2	870	Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
74.14	871	)))
111.32	872	)))
2.2	873
74.14	874	* (((
111.32	875	(((
115.1	876	AT Command Connection: See [[FAQ>>\|\|anchor="H7.A0FAQ"]].
74.14	877	)))
111.32	878	)))
74.14	879	* (((
111.32	880	(((
115.1	881	LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
74.14	882	)))
111.32	883	)))
2.2	884
74.14	885	(((
111.32	886	(((
94.6	887
111.32	888	)))
94.6	889
111.32	890	(((
147.2	891	There are two kinds of commands to configure LDDS75, they are:
74.14	892	)))
111.32	893	)))
2.2	894
74.14	895	* (((
111.32	896	(((
74.14	897	(% style="color:#4f81bd" %) General Commands.
	898	)))
111.32	899	)))
2.2	900
74.14	901	(((
111.32	902	(((
2.2	903	These commands are to configure:
74.14	904	)))
111.32	905	)))
2.2	906
74.14	907	* (((
111.32	908	(((
74.14	909	General system settings like: uplink interval.
	910	)))
111.32	911	)))
74.14	912	* (((
111.32	913	(((
74.14	914	LoRaWAN protocol & radio related command.
	915	)))
111.32	916	)))
2.2	917
74.14	918	(((
111.32	919	(((
115.1	920	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	921	)))
111.32	922	)))
2.2	923
74.14	924	(((
111.32	925	(((
74.14	926
	927	)))
111.32	928	)))
2.2	929
74.14	930	* (((
111.32	931	(((
147.2	932	(% style="color:#4f81bd" %) Commands special design for LDDS75
74.14	933	)))
111.32	934	)))
2.2	935
74.14	936	(((
111.32	937	(((
147.2	938	These commands only valid for LDDS75, as below:
74.14	939	)))
111.32	940	)))
2.2	941
	942
	943
147.2	944	== 3.1 Access AT Commands ==
27.2	945
147.2	946	LDDS75 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS75 for using AT command, as below.
2.2	947
147.2	948	[[image:image-20220610172924-4.png\|\|height="483" width="988"]]
2.2	949
27.2	950
147.2	951	Or if you have below board, use below connection:
2.2	952
	953
147.2	954	[[image:image-20220610172924-5.png]]
2.2	955
	956
147.2	957	In the PC, you need to set the serial baud rate to (% style="color:green" %)9600(%%) to access the serial console for LDDS75. LDDS75 will output system info once power on as below:
2.2	958
27.3	959
147.2	960	[[image:image-20220610172924-6.png\|\|height="601" width="860"]]
2.2	961
	962
	963
147.2	964	== 3.2 Set Transmit Interval Time ==
2.2	965
147.2	966	Feature: Change LoRaWAN End Node Transmit Interval.
	967
	968	(% style="color:#037691" %)AT Command: AT+TDC
	969
	970	[[image:image-20220610173409-7.png]]
	971
	972
74.16	973	(((
147.3	974	(% style="color:#037691" %)Downlink Command: 0x01
74.16	975	)))
2.2	976
74.16	977	(((
147.3	978	(((
	979	Format: Command Code (0x01) followed by 3 bytes time value.
2.2	980
147.3	981	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	982
	983	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	984	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
74.16	985	)))
2.2	986
147.3	987
	988
74.16	989	)))
2.2	990
147.4	991	== 3.3 Set Interrupt Mode ==
74.17	992
147.4	993	Feature, Set Interrupt mode for GPIO_EXIT.
2.2	994
147.4	995	(% style="color:#037691" %)Downlink Command: AT+INTMOD
2.2	996
149.2	997	[[image:image-20220610174917-9.png]]
2.2	998
	999
147.5	1000	(% style="color:#037691" %)Downlink Command: 0x06
2.2	1001
147.4	1002	Format: Command Code (0x06) followed by 3 bytes.
2.2	1003
147.4	1004	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
2.2	1005
147.4	1006	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	1007	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
2.2	1008
	1009
	1010
147.10	1011	= 4. FAQ =
2.2	1012
149.3	1013	== 4.1 What is the frequency plan for LDDS75? ==
34.7	1014
149.3	1015	LDDS75 use the same frequency as other Dragino products. User can see the detail from this link:
	1016
	1017
	1018
	1019	== 4.2 How to change the LoRa Frequency Bands/Region ==
	1020
115.1	1021	You can follow the instructions for [[how to upgrade image>>\|\|anchor="H2.8A0200BFirmwareChangeLog"]].
2.2	1022	When downloading the images, choose the required image file for download.
	1023
	1024
149.3	1025
	1026	== 4.3 Can I use LDDS75 in condensation environment? ==
	1027
	1028	LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
	1029
	1030
	1031
147.10	1032	= 5. Trouble Shooting =
2.2	1033
149.4	1034	== 5.1 Why I can’t join TTN V3 in US915 / AU915 bands? ==
34.7	1035
93.12	1036
2.2	1037
149.4	1038	== 5.2 AT Command input doesn't work ==
85.21	1039
149.4	1040	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.
2.2	1041
93.10	1042	(((
	1043
	1044	)))
93.6	1045
	1046
147.8	1047	= 6. Order Info =
93.6	1048
93.13	1049
147.9	1050	Part Number: (% style="color:blue" %)LDDS75-XX-YY
2.2	1051
	1052
34.9	1053	(% style="color:blue" %)XX(%%): The default frequency band
2.2	1054
34.13	1055	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
34.9	1056	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	1057	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	1058	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	1059	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	1060	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
34.13	1061	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
34.9	1062	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
2.2	1063
147.9	1064	(% style="color:blue" %)YY(%%): Battery Option
34.9	1065
147.10	1066	* (% style="color:red" %)4(%%): 4000mAh battery
	1067	* (% style="color:red" %)8(%%): 8500mAh battery
34.9	1068
147.8	1069
	1070	= 7. Packing Info =
	1071
	1072
2.2	1073	Package Includes:
	1074
147.8	1075	* LDDS75 LoRaWAN Distance Detection Sensor x 1
2.2	1076
	1077	Dimension and weight:
	1078
	1079	* Device Size: cm
	1080	* Device Weight: g
	1081	* Package Size / pcs : cm
	1082	* Weight / pcs : g
	1083
	1084
147.8	1085	= 8. Support =
	1086
2.2	1087	* 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	1088	* 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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