Wiki source code of DDS75-LB -- LoRaWAN Distance Detection Sensor User Manual

Version 70.20 by Xiaoling on 2023/06/13 09:03

version	line-number	content
26.1	1	(% style="text-align:center" %)
68.2	2	[[image:image-20230612170349-1.png\|\|height="656" width="656"]]
1.1	3
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67.2	5
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31.2	7	Table of Contents：
30.1	8
1.1	9	{{toc/}}
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	14
	15
31.1	16	= 1. Introduction =
1.1	17
70.3	18	== 1.1 What is LoRaWAN Distance Detection Sensor ==
1.1	19
39.6	20
70.4	21	The Dragino DDS75-LB is a (% style="color:blue" %) 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:blue" %) ultrasonic sensing technology(%%) for (% style="color:blue" %)distance measurement(%%), and (% style="color:blue" %) temperature compensation(%%) is performed internally to improve the reliability of data. The DDS75-LB 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.
1.1	22
70.4	23	It detects the distance(% style="color:blue" %) between the measured object and the sensor(%%), and uploads the value via wireless to LoRaWAN IoT Server.
1.1	24
70.14	25	The LoRa wireless technology used in DDS75-LB allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
1.1	26
70.14	27	DDS75-LB (% style="color:blue" %)supports BLE configure(%%) and (% style="color:blue" %)wireless OTA update(%%) which make user easy to use.
62.4	28
70.14	29	DDS75-LB is powered by (% style="color:blue" %)8500mAh Li-SOCI2 battery(%%), it is designed for long term use up to 5 years.
1.1	30
70.14	31	Each DDS75-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
1.1	32
70.2	33	[[image:image-20230612170943-2.png\|\|height="525" width="912"]]
1.1	34
64.2	35
1.1	36	== 1.2 Features ==
	37
39.6	38
1.1	39	* LoRaWAN 1.0.3 Class A
62.4	40	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
1.1	41	* Ultra-low power consumption
70.5	42	* Distance Detection by Ultrasonic technology
	43	* Flat object range 280mm - 7500mm
	44	* Accuracy: ±(1cm+S*0.3%) (S: Distance)
	45	* Cable Length : 25cm
1.1	46	* Support Bluetooth v5.1 and LoRaWAN remote configure
	47	* Support wireless OTA update firmware
70.5	48	* AT Commands to change parameters
1.1	49	* Downlink to change configure
70.5	50	* IP66 Waterproof Enclosure
1.1	51	* 8500mAh Battery for long term use
	52
	53	== 1.3 Specification ==
	54
	55
70.6	56	(% style="color:#037691" %)Rated environmental conditions:
	57
	58	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %)
	59	\|(% style="background-color:#d9e2f3; color:#0070c0; width:163px" %)Item\|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)(((
	60	Minimum value
	61	)))\|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)(((
	62	Typical value
	63	)))\|(% style="background-color:#d9e2f3; color:#0070c0; width:87px" %)(((
	64	Maximum value
	65	)))\|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)Unit\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)Remarks
	66	\|(% style="width:174px" %)Storage temperature\|(% style="width:86px" %)-25\|(% style="width:66px" %)25\|(% style="width:90px" %)80\|(% style="width:48px" %)℃\|(% style="width:203px" %)
	67	\|(% style="width:174px" %)Storage humidity\|(% style="width:86px" %) \|(% style="width:66px" %)65%\|(% style="width:90px" %)90%\|(% style="width:48px" %)RH\|(% style="width:203px" %)(1)
	68	\|(% style="width:174px" %)Operating temperature\|(% style="width:86px" %)-15\|(% style="width:66px" %)25\|(% style="width:90px" %)60\|(% style="width:48px" %)℃\|(% style="width:203px" %)
	69	\|(% style="width:174px" %)Working humidity\|(% style="width:86px" %)(((
	70
	71
	72
	73	)))\|(% style="width:66px" %)65%\|(% style="width:90px" %)80%\|(% style="width:48px" %)RH\|(% style="width:203px" %)(1)
	74
	75	(((
70.20	76	(% style="color:red" %)Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);
70.6	77
70.20	78	(% style="color:red" %) 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)
70.6	79
	80
	81	)))
	82
1.1	83	(% style="color:#037691" %)Common DC Characteristics:
	84
	85	* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
	86	* Operating Temperature: -40 ~~ 85°C
	87
	88	(% style="color:#037691" %)LoRa Spec:
	89
	90	* Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz
	91	* Max +22 dBm constant RF output vs.
	92	* RX sensitivity: down to -139 dBm.
	93	* Excellent blocking immunity
	94
	95	(% style="color:#037691" %)Battery:
	96
	97	* Li/SOCI2 un-chargeable battery
	98	* Capacity: 8500mAh
	99	* Self-Discharge: <1% / Year @ 25°C
	100	* Max continuously current: 130mA
	101	* Max boost current: 2A, 1 second
	102
	103	(% style="color:#037691" %)Power Consumption
	104
	105	* Sleep Mode: 5uA @ 3.3v
	106	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
	107
70.6	108	== 1.4 Effective measurement range Reference beam pattern ==
62.4	109
	110
70.19	111	(% style="color:blue" %)1. The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.
62.4	112
70.6	113	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852253176-749.png?rev=1.1\|\|alt="1654852253176-749.png"]]
62.4	114
70.6	115
70.19	116	(% style="color:blue" %)*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.**
70.6	117
	118	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852175653-550.png?rev=1.1\|\|alt="1654852175653-550.png"]]
	119
	120
	121	== 1.5 Applications ==
	122
	123
	124	* Horizontal distance measurement
	125	* Liquid level measurement
	126	* Parking management system
	127	* Object proximity and presence detection
	128	* Intelligent trash can management system
	129	* Robot obstacle avoidance
	130	* Automatic control
	131	* Sewer
	132	* Bottom water level monitoring
	133
	134	== 1.6 Sleep mode and working mode ==
	135
	136
1.1	137	(% style="color:blue" %)Deep Sleep Mode: (%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
	138
	139	(% style="color:blue" %)Working Mode: (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
	140
	141
70.7	142	== 1.7 Button & LEDs ==
1.1	143
	144
6.1	145	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
1.1	146
	147
14.13	148	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
14.11	149	\|=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)Behavior on ACT\|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)Action
1.1	150	\|(% style="width:167px" %)Pressing ACT between 1s < time < 3s\|(% style="width:117px" %)Send an uplink\|(% style="width:225px" %)(((
	151	If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)blue led (%%)will blink once.
	152	Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	153	)))
	154	\|(% style="width:167px" %)Pressing ACT for more than 3s\|(% style="width:117px" %)Active Device\|(% style="width:225px" %)(((
	155	(% style="color:green" %)Green led(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)OTA mode(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
	156	(% style="color:green" %)Green led(%%) will solidly turn on for 5 seconds after joined in network.
	157	Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.
	158	)))
6.1	159	\|(% style="width:167px" %)Fast press ACT 5 times.\|(% style="width:117px" %)Deactivate Device\|(% style="width:225px" %)(% style="color:red" %)Red led(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
1.1	160
70.7	161	== 1.8 BLE connection ==
1.1	162
	163
70.7	164	DDS75-LB support BLE remote configure.
1.1	165
	166
	167	BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
	168
	169	* Press button to send an uplink
	170	* Press button to active device.
	171	* Device Power on or reset.
	172
	173	If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	174
	175
70.7	176	== 1.9 Pin Definitions ==
1.1	177
43.1	178	[[image:image-20230523174230-1.png]]
1.1	179
43.1	180
	181
70.15	182
67.4	183	== 2.10 Mechanical ==
	184
	185
6.1	186	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
1.1	187
	188
6.1	189	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
1.1	190
	191
6.1	192	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
1.1	193
	194
70.20	195	(% style="color:blue" %)Probe Mechanical:
70.10	196
	197
	198	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610172003-1.png?rev=1.1\|\|alt="image-20220610172003-1.png"]]
	199
	200
	201	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610172003-2.png?rev=1.1\|\|alt="image-20220610172003-2.png"]]
	202
	203
	204	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610172003-2.png?rev=1.1\|\|alt="image-20220610172003-2.png"]]
	205
	206
70.7	207	= 2. Configure DDS75-LB to connect to LoRaWAN network =
67.4	208
1.1	209	== 2.1 How it works ==
	210
	211
70.8	212	The DDS75-LB is configured as (% style="color:#037691" %)LoRaWAN OTAA Class A(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the DDS75-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
1.1	213
64.2	214	(% style="display:none" %) (%%)
1.1	215
	216	== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
	217
	218
	219	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.
	220
62.5	221	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.
1.1	222
70.2	223	[[image:image-20230612171032-3.png\|\|height="492" width="855"]](% style="display:none" %)
1.1	224
64.2	225
70.8	226	(% style="color:blue" %)Step 1:(%%) Create a device in TTN with the OTAA keys from DDS75-LB.
1.1	227
70.8	228	Each DDS75-LB is shipped with a sticker with the default device EUI as below:
1.1	229
30.1	230	[[image:image-20230426084152-1.png\|\|alt="图片-20230426084152-1.png" height="233" width="502"]]
1.1	231
	232
	233	You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	234
	235
	236	(% style="color:blue" %)Register the device
	237
14.13	238	[[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	239
	240
	241	(% style="color:blue" %)Add APP EUI and DEV EUI
	242
30.1	243	[[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	244
	245
	246	(% style="color:blue" %)Add APP EUI in the application
	247
	248
30.1	249	[[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	250
	251
	252	(% style="color:blue" %)Add APP KEY
	253
30.1	254	[[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	255
	256
70.9	257	(% style="color:blue" %)Step 2:(%%) Activate on DDS75-LB
1.1	258
	259
70.9	260	Press the button for 5 seconds to activate the DDS75-LB.
6.1	261
1.1	262	(% 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.
	263
	264	After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	265
	266
70.10	267	== 2.3 Uplink Payload ==
1.1	268
	269
62.5	270	(((
70.10	271	DDS75-LB will uplink payload via LoRaWAN with below payload format:
62.5	272	)))
1.1	273
62.5	274	(((
70.10	275	Uplink payload includes in total 4 bytes.
	276	Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
62.5	277	)))
1.1	278
	279
70.15	280
67.7	281	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
70.10	282	\|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
	283	Size(bytes)
	284	)))\|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="background-color:#D9E2F3;color:#0070C0" %)1\|=(% style="background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="background-color:#D9E2F3;color:#0070C0" %)1
	285	\|(% style="width:62.5px" %)Value\|(% style="width:62.5px" %)[[BAT>>\|\|anchor="H2.3.1A0BatteryInfo"]]\|(((
	286	[[Distance>>\|\|anchor="H2.3.2A0Distance"]]
	287	(unit: mm)
	288	)))\|[[Digital Interrupt (Optional)>>\|\|anchor="H2.3.3A0InterruptPin"]]\|(((
	289	[[Temperature (Optional )>>\|\|anchor="H2.3.4A0DS18B20Temperaturesensor"]]
	290	)))\|[[Sensor Flag>>\|\|anchor="H2.3.5A0SensorFlag"]]
1.1	291
70.10	292	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654850511545-399.png?rev=1.1\|\|alt="1654850511545-399.png"]]
1.1	293
	294
70.10	295	=== 2.3.1 Battery Info ===
1.1	296
	297
70.10	298	Check the battery voltage for DDS75-LB.
1.1	299
70.10	300	Ex1: 0x0B45 = 2885mV
1.1	301
70.10	302	Ex2: 0x0B49 = 2889mV
46.1	303
1.1	304
70.10	305	=== 2.3.2 Distance ===
67.7	306
	307
70.10	308	(((
	309	Get the distance. Flat object range 280mm - 7500mm.
62.5	310	)))
1.1	311
62.5	312	(((
70.10	313	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" %)
14.22	314
70.10	315	(% style="color:#4472c4" %)0B05(H) = 2821 (D) = 2821 mm.
62.5	316	)))
1.1	317
	318
70.10	319	* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
	320	* 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.
67.7	321
70.16	322
70.10	323	=== 2.3.3 Interrupt Pin ===
67.7	324
10.1	325
70.10	326	This data field shows if this packet is generated by interrupt or not. [[Click here>>\|\|anchor="H3.3A0SetInterruptMode"]] for the hardware and software set up.
1.1	327
70.10	328	Example:
1.1	329
70.10	330	0x00: Normal uplink packet.
1.1	331
70.10	332	0x01: Interrupt Uplink Packet.
1.1	333
	334
70.10	335	=== 2.3.4 DS18B20 Temperature sensor ===
62.5	336
1.1	337
70.10	338	This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
1.1	339
70.10	340	Example:
1.1	341
70.10	342	If payload is: 0105H: (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
39.5	343
70.10	344	If payload is: FF3FH : (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
1.1	345
70.10	346	(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
1.1	347
	348
70.10	349	=== 2.3.5 Sensor Flag ===
1.1	350
	351
55.1	352	(((
70.10	353	0x01: Detect Ultrasonic Sensor
55.1	354	)))
	355
	356	(((
70.10	357	0x00: No Ultrasonic Sensor
55.1	358	)))
46.1	359
	360
70.10	361	=== 2.3.6 Decode payload in The Things Network ===
1.1	362
55.1	363
70.10	364	While using TTN network, you can add the payload format to decode the payload.
1.1	365
70.10	366	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654850829385-439.png?rev=1.1\|\|alt="1654850829385-439.png"]]
1.1	367
70.10	368	The payload decoder function for TTN V3 is here:
1.1	369
62.5	370	(((
70.10	371	DDS75-LB TTN V3 Payload Decoder: [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
62.5	372	)))
1.1	373
	374
70.10	375	== 2.4 Uplink Interval ==
1.1	376
	377
70.10	378	The DDS75-LB by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>doc:Main.End Device AT Commands and Downlink Command.WebHome\|\|anchor="H4.1ChangeUplinkInterval"]]
1.1	379
70.10	380
	381	== 2.5 Show Data in DataCake IoT Server ==
	382
	383
62.5	384	(((
70.10	385	[[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	386	)))
1.1	387
62.5	388	(((
70.10	389
62.5	390	)))
1.1	391
62.5	392	(((
70.10	393	(% style="color:blue" %)Step 1(%%): Be sure that your device is programmed and properly connected to the network at this time.
62.5	394	)))
1.1	395
62.5	396	(((
70.10	397	(% 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	398	)))
14.26	399
55.1	400
70.10	401	[[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	402
	403
70.10	404	[[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	405
	406
70.10	407	(% style="color:blue" %)Step 3(%%): Create an account or log in Datacake.
1.1	408
70.10	409	(% style="color:blue" %)Step 4(%%): Search the DDS75-LB and add DevEUI.
1.1	410
70.10	411	[[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	412
1.1	413
70.10	414	After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
1.1	415
70.10	416	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610165129-11.png?width=1088&height=595&rev=1.1\|\|alt="image-20220610165129-11.png"]]
1.1	417
	418
	419
70.10	420	== 2.6 Datalog Feature ==
1.1	421
	422
70.11	423	Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DDS75-LB will store the reading for future retrieving purposes.
62.5	424
	425
70.10	426	=== 2.6.1 Ways to get datalog via LoRaWAN ===
62.5	427
	428
70.11	429	Set PNACKMD=1, DDS75-LB will wait for ACK for every uplink, when there is no LoRaWAN network,DDS75-LB will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
62.5	430
	431	* (((
70.11	432	a) DDS75-LB will do an ACK check for data records sending to make sure every data arrive server.
62.5	433	)))
	434	* (((
70.11	435	b) DDS75-LB will send data in CONFIRMED Mode when PNACKMD=1, but DDS75-LB won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if DDS75-LB gets a ACK, DDS75-LB will consider there is a network connection and resend all NONE-ACK messages.
62.5	436	)))
	437
	438	Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
	439
	440	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220703111700-2.png?width=1119&height=381&rev=1.1\|\|alt="图片-20220703111700-2.png" height="381" width="1119"]]
	441
	442
70.10	443	=== 2.6.2 Unix TimeStamp ===
62.5	444
	445
70.11	446	DDS75-LB uses Unix TimeStamp format based on
62.5	447
	448	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-11.png?width=627&height=97&rev=1.1\|\|alt="图片-20220523001219-11.png" height="97" width="627"]]
	449
	450	User can get this time from link: [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
	451
	452	Below is the converter example
	453
	454	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-12.png?width=720&height=298&rev=1.1\|\|alt="图片-20220523001219-12.png" height="298" width="720"]]
	455
	456
	457	So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
	458
	459
70.10	460	=== 2.6.3 Set Device Time ===
62.5	461
	462
	463	User need to set (% style="color:blue" %)SYNCMOD=1(%%) to enable sync time via MAC command.
	464
70.14	465	Once DDS75-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DDS75-LB. If DDS75-LB fails to get the time from the server, DDS75-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
62.5	466
	467	(% style="color:red" %)Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.
	468
	469
70.10	470	=== 2.6.4 Poll sensor value ===
62.5	471
	472
	473	Users can poll sensor values based on timestamps. Below is the downlink command.
	474
	475	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
	476	\|(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)Downlink Command to poll Open/Close status (0x31)
	477	\|(% style="width:58px" %)1byte\|(% style="width:127px" %)4bytes\|(% style="width:124px" %)4bytes\|(% style="width:114px" %)1byte
	478	\|(% style="width:58px" %)31\|(% style="width:127px" %)Timestamp start\|(% style="width:124px" %)Timestamp end\|(% style="width:114px" %)Uplink Interval
	479
	480	(((
	481	Timestamp start and Timestamp end-use Unix TimeStamp format as mentioned above. Devices will reply with all data logs during this period, using the uplink interval.
	482	)))
	483
	484	(((
64.8	485	For example, downlink command [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/CPL01%20LoRaWAN%20Outdoor%20PulseContact%20%20Sensor%20Manual/WebHome/image-20220518162852-1.png?rev=1.1\|\|alt="image-20220518162852-1.png"]]
62.5	486	)))
	487
	488	(((
	489	Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
	490	)))
	491
	492	(((
70.11	493	Uplink Internal =5s，means DDS75-LB will send one packet every 5s. range 5~~255s.
62.5	494	)))
	495
	496
70.10	497	== 2.7 Frequency Plans ==
1.1	498
	499
70.11	500	The DDS75-LB uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
1.1	501
	502	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
	503
	504
70.14	505	= 3. Configure DDS75-LB =
1.1	506
16.4	507	== 3.1 Configure Methods ==
1.1	508
	509
70.11	510	DDS75-LB supports below configure method:
1.1	511
	512	* AT Command via Bluetooth Connection (Recommended): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
67.20	513
11.1	514	* 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	515
1.1	516	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
	517
	518	== 3.2 General Commands ==
	519
	520
	521	These commands are to configure:
	522
	523	* General system settings like: uplink interval.
67.20	524
1.1	525	* LoRaWAN protocol & radio related command.
	526
	527	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	528
	529	[[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/]]
	530
	531
70.11	532	== 3.3 Commands special design for DDS75-LB ==
1.1	533
	534
70.11	535	These commands only valid for DDS75-LB, as below:
1.1	536
	537
	538	=== 3.3.1 Set Transmit Interval Time ===
	539
	540
62.5	541	(((
1.1	542	Feature: Change LoRaWAN End Node Transmit Interval.
62.5	543	)))
	544
	545	(((
1.1	546	(% style="color:blue" %)AT Command: AT+TDC
62.5	547	)))
1.1	548
14.34	549	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
62.5	550	\|=(% style="width: 156px;background-color:#D9E2F3; color:#0070c0" %)Command Example\|=(% style="width: 137px;background-color:#D9E2F3; color:#0070c0" %)Function\|=(% style="background-color:#D9E2F3; color:#0070c0" %)Response
1.1	551	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
	552	30000
	553	OK
	554	the interval is 30000ms = 30s
	555	)))
	556	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
	557	OK
	558	Set transmit interval to 60000ms = 60 seconds
	559	)))
	560
62.5	561	(((
1.1	562	(% style="color:blue" %)Downlink Command: 0x01
62.5	563	)))
1.1	564
62.5	565	(((
1.1	566	Format: Command Code (0x01) followed by 3 bytes time value.
62.5	567	)))
1.1	568
62.5	569	(((
1.1	570	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	571	)))
1.1	572
62.5	573	* (((
	574	Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	575	)))
	576	* (((
67.10	577	Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	578	)))
1.1	579
70.11	580	=== 3.3.2 Set Interrupt Mode ===
62.5	581
	582
43.1	583	Feature, Set Interrupt mode for PA8 of pin.
1.1	584
46.1	585	When AT+INTMOD=0 is set, PA8 is used as a digital input port.
	586
1.1	587	(% style="color:blue" %)AT Command: AT+INTMOD
	588
14.34	589	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
62.5	590	\|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)Response
1.1	591	\|(% style="width:154px" %)AT+INTMOD=?\|(% style="width:196px" %)Show current interrupt mode\|(% style="width:157px" %)(((
	592	0
	593	OK
	594	the mode is 0 =Disable Interrupt
	595	)))
	596	\|(% style="width:154px" %)AT+INTMOD=2\|(% style="width:196px" %)(((
	597	Set Transmit Interval
	598	0. (Disable Interrupt),
	599	~1. (Trigger by rising and falling edge)
	600	2. (Trigger by falling edge)
	601	3. (Trigger by rising edge)
	602	)))\|(% style="width:157px" %)OK
	603
	604	(% style="color:blue" %)Downlink Command: 0x06
	605
	606	Format: Command Code (0x06) followed by 3 bytes.
	607
	608	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	609
	610	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
62.6	611
1.1	612	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	613
16.4	614	= 4. Battery & Power Consumption =
14.45	615
1.1	616
70.11	617	DDS75-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
1.1	618
	619	[[Battery Info & Power Consumption Analyze>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	620
	621
16.4	622	= 5. OTA Firmware update =
1.1	623
	624
13.1	625	(% class="wikigeneratedid" %)
70.11	626	User can change firmware DDS75-LB to:
1.1	627
13.1	628	* Change Frequency band/ region.
62.7	629
13.1	630	* Update with new features.
62.7	631
13.1	632	* Fix bugs.
1.1	633
70.13	634	Firmware and changelog can be downloaded from : [[Firmware download link>>url:https://www.dropbox.com/sh/7la95mae0fn03xe/AACtzs-32m22TLb75B-iIr-Qa?dl=0]]
1.1	635
31.1	636	Methods to Update Firmware:
1.1	637
70.18	638	* (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	639
70.18	640	* 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	641
31.1	642	= 6. FAQ =
1.1	643
	644
70.14	645	== 6.1 What is the frequency plan for DDS75-LB? ==
1.1	646
62.7	647
70.14	648	DDS75-LB use the same frequency as other Dragino products. User can see the detail from this link: [[Introduction>>doc:Main.End Device Frequency Band.WebHome\|\|anchor="H1.Introduction"]]
62.7	649
1.1	650
70.14	651	== 6.2 Can I use DDS75-LB in condensation environment? ==
1.1	652
	653
70.14	654	DDS75-LB is not suitable to be used in condensation environment. Condensation on the DDS75-LB probe will affect the reading and always got 0.
	655
	656
	657	= 7. Trouble Shooting =
	658
	659	== 7.1 Why I can't join TTN V3 in US915 / AU915 bands? ==
	660
	661
	662	It is due to channel mapping. Please see below link: [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome\|\|anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	663
	664
	665	== 7.2 AT Command input doesn't work ==
	666
	667
	668	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.
	669
	670
	671	== 7.3 Why does the sensor reading show 0 or "No sensor" ==
	672
	673
	674	~1. The measurement object is very close to the sensor, but in the blind spot of the sensor.
	675
	676	2. Sensor wiring is disconnected
	677
	678	3. Not using the correct decoder
	679
	680
70.17	681	== 7.4 Abnormal readings The gap between multiple readings is too large or the gap between the readings and the actual value is too large ==
70.14	682
	683
	684	1) Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.)
	685
	686	2) Does it change with temperature, temperature will affect its measurement
	687
	688	3) If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode.
	689
	690	downlink command: (% style="color:blue" %)F1 01(%%), AT command: (% style="color:blue" %)AT+DDEBUG=1
	691
	692	4) After entering the debug mode, it will send 20 pieces of data at a time, and you can send its uplink to us for analysis
	693
70.17	694	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20230113135125-2.png?width=1057&height=136&rev=1.1\|\|alt="image-20230113135125-2.png"]]
70.14	695
	696
	697	Its original payload will be longer than other data. Even though it is being parsed, it can be seen that it is abnormal data.
	698
	699	Please send the data to us for check.
	700
	701
	702	= 8. Order Info =
	703
	704
	705	Part Number: (% style="color:blue" %)DDS75-LB-XXX
	706
70.12	707	(% style="color:red" %)XXX(%%): The default frequency band
1.1	708
38.1	709	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
1.1	710
38.1	711	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
1.1	712
38.1	713	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
1.1	714
38.1	715	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
1.1	716
38.1	717	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
1.1	718
38.1	719	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
1.1	720
38.1	721	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
1.1	722
38.1	723	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
1.1	724
67.11	725
70.14	726	= 9. Packing Info =
67.11	727
	728
39.1	729	(% style="color:#037691" %)Package Includes:
1.1	730
70.12	731	* DDS75-LB LoRaWAN Distance Detection Sensor x 1
1.1	732
39.1	733	(% style="color:#037691" %)Dimension and weight:
1.1	734
31.1	735	* Device Size: cm
1.1	736
31.1	737	* Device Weight: g
1.1	738
31.1	739	* Package Size / pcs : cm
1.1	740
31.1	741	* Weight / pcs : g
1.1	742
	743
70.14	744	= 10. Support =
	745
	746
31.1	747	* 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	748
	749	* 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 DDS75-LB -- LoRaWAN Distance Detection Sensor User Manual

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