Wiki source code of DDS20-LB_LoRaWAN_Ultrasonic_Liquid_Level_Sensor_User_Manual

Version 73.12 by Xiaoling on 2023/06/13 12:00

version	line-number	content
26.1	1	(% style="text-align:center" %)
73.8	2	[[image:image-20230613100900-1.png\|\|height="650" width="650"]]
1.1	3
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67.2	5
31.2	6	Table of Contents：
30.1	7
1.1	8	{{toc/}}
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	14
31.1	15	= 1. Introduction =
1.1	16
70.3	17	== 1.1 What is LoRaWAN Distance Detection Sensor ==
1.1	18
39.6	19
71.3	20	The Dragino DDS45-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 DDS45-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	21
70.4	22	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	23
71.3	24	The LoRa wireless technology used in DDS45-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	25
71.3	26	DDS45-LB (% style="color:blue" %)supports BLE configure(%%) and (% style="color:blue" %)wireless OTA update(%%) which make user easy to use.
62.4	27
71.3	28	DDS45-LB is powered by (% style="color:blue" %)8500mAh Li-SOCI2 battery(%%), it is designed for long term use up to 5 years.
1.1	29
71.3	30	Each DDS45-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	31
73.2	32	[[image:image-20230613102459-3.png\|\|height="476" width="855"]]
1.1	33
64.2	34
1.1	35	== 1.2 Features ==
	36
39.6	37
1.1	38	* LoRaWAN 1.0.3 Class A
62.4	39	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
1.1	40	* Ultra-low power consumption
70.5	41	* Distance Detection by Ultrasonic technology
73.3	42	* Flat object range 30mm - 4500mm
70.5	43	* Accuracy: ±(1cm+S*0.3%) (S: Distance)
73.3	44	* Measure Angle: 60°
70.5	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
73.9	53
	54
1.1	55	== 1.3 Specification ==
	56
	57
70.28	58	(% style="color:#037691" %)Common DC Characteristics:
70.6	59
70.28	60	* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
	61	* Operating Temperature: -40 ~~ 85°C
	62
	63	(% style="color:#037691" %)LoRa Spec:
	64
	65	* Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz
	66	* Max +22 dBm constant RF output vs.
	67	* RX sensitivity: down to -139 dBm.
	68	* Excellent blocking immunity
	69
	70	(% style="color:#037691" %)Battery:
	71
	72	* Li/SOCI2 un-chargeable battery
	73	* Capacity: 8500mAh
	74	* Self-Discharge: <1% / Year @ 25°C
	75	* Max continuously current: 130mA
	76	* Max boost current: 2A, 1 second
	77
	78	(% style="color:#037691" %)Power Consumption
	79
	80	* Sleep Mode: 5uA @ 3.3v
	81	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
	82
73.9	83
	84
70.28	85	== 1.4 Rated environmental conditions ==
	86
	87
70.6	88	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %)
	89	\|(% style="background-color:#d9e2f3; color:#0070c0; width:163px" %)Item\|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)(((
	90	Minimum value
	91	)))\|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)(((
	92	Typical value
	93	)))\|(% style="background-color:#d9e2f3; color:#0070c0; width:87px" %)(((
	94	Maximum value
	95	)))\|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)Unit\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)Remarks
	96	\|(% style="width:174px" %)Storage temperature\|(% style="width:86px" %)-25\|(% style="width:66px" %)25\|(% style="width:90px" %)80\|(% style="width:48px" %)℃\|(% style="width:203px" %)
	97	\|(% style="width:174px" %)Storage humidity\|(% style="width:86px" %) \|(% style="width:66px" %)65%\|(% style="width:90px" %)90%\|(% style="width:48px" %)RH\|(% style="width:203px" %)(1)
	98	\|(% style="width:174px" %)Operating temperature\|(% style="width:86px" %)-15\|(% style="width:66px" %)25\|(% style="width:90px" %)60\|(% style="width:48px" %)℃\|(% style="width:203px" %)
	99	\|(% style="width:174px" %)Working humidity\|(% style="width:86px" %)(((
	100
	101
	102
	103	)))\|(% style="width:66px" %)65%\|(% style="width:90px" %)80%\|(% style="width:48px" %)RH\|(% style="width:203px" %)(1)
	104
	105	(((
70.20	106	(% style="color:red" %)Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);
70.6	107
70.20	108	(% 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	109
	110
	111	)))
	112
70.28	113	== 1.5 Effective measurement range Reference beam pattern ==
1.1	114
	115
70.19	116	(% 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	117
70.6	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/1654852253176-749.png?rev=1.1\|\|alt="1654852253176-749.png"]]
62.4	119
70.6	120
70.19	121	(% 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	122
	123	[[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"]]
	124
	125
70.28	126	== 1.6 Applications ==
70.6	127
	128
	129	* Horizontal distance measurement
	130	* Liquid level measurement
	131	* Parking management system
	132	* Object proximity and presence detection
	133	* Intelligent trash can management system
	134	* Robot obstacle avoidance
	135	* Automatic control
	136	* Sewer
	137	* Bottom water level monitoring
	138
73.9	139
	140
70.28	141	== 1.7 Sleep mode and working mode ==
70.6	142
	143
1.1	144	(% 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.
	145
	146	(% 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.
	147
	148
70.28	149	== 1.8 Button & LEDs ==
1.1	150
	151
6.1	152	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
1.1	153
	154
14.13	155	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
14.11	156	\|=(% 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	157	\|(% style="width:167px" %)Pressing ACT between 1s < time < 3s\|(% style="width:117px" %)Send an uplink\|(% style="width:225px" %)(((
	158	If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)blue led (%%)will blink once.
	159	Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	160	)))
	161	\|(% style="width:167px" %)Pressing ACT for more than 3s\|(% style="width:117px" %)Active Device\|(% style="width:225px" %)(((
	162	(% 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.
	163	(% style="color:green" %)Green led(%%) will solidly turn on for 5 seconds after joined in network.
	164	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.
	165	)))
6.1	166	\|(% 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	167
73.9	168
	169
70.28	170	== 1.9 BLE connection ==
1.1	171
	172
71.3	173	DDS45-LB support BLE remote configure.
1.1	174
	175
	176	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:
	177
	178	* Press button to send an uplink
	179	* Press button to active device.
	180	* Device Power on or reset.
	181
	182	If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	183
	184
70.28	185	== 1.10 Pin Definitions ==
1.1	186
43.1	187	[[image:image-20230523174230-1.png]]
1.1	188
43.1	189
70.28	190	== 1.11 Mechanical ==
67.4	191
	192
6.1	193	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
1.1	194
	195
6.1	196	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
1.1	197
	198
6.1	199	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
1.1	200
	201
70.20	202	(% style="color:blue" %)Probe Mechanical:
70.10	203
73.4	204	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS45%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654915562090-396.png?rev=1.1\|\|alt="1654915562090-396.png"]]
70.10	205
	206
71.3	207	= 2. Configure DDS45-LB to connect to LoRaWAN network =
67.4	208
1.1	209	== 2.1 How it works ==
	210
	211
71.3	212	The DDS45-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 DDS45-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
73.2	223	[[image:image-20230613102426-2.png\|\|height="476" width="855"]](% style="display:none" %)
1.1	224
64.2	225
71.3	226	(% style="color:blue" %)Step 1:(%%) Create a device in TTN with the OTAA keys from DDS45-LB.
1.1	227
71.3	228	Each DDS45-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
71.3	257	(% style="color:blue" %)Step 2:(%%) Activate on DDS45-LB
1.1	258
	259
71.3	260	Press the button for 5 seconds to activate the DDS45-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	(((
71.3	271	DDS45-LB will uplink payload via LoRaWAN with below payload format:
62.5	272	)))
1.1	273
62.5	274	(((
70.21	275	Uplink payload includes in total 8 bytes.
62.5	276	)))
1.1	277
67.7	278	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
70.10	279	\|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
	280	Size(bytes)
	281	)))\|=(% 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
	282	\|(% style="width:62.5px" %)Value\|(% style="width:62.5px" %)[[BAT>>\|\|anchor="H2.3.1A0BatteryInfo"]]\|(((
	283	[[Distance>>\|\|anchor="H2.3.2A0Distance"]]
	284	(unit: mm)
	285	)))\|[[Digital Interrupt (Optional)>>\|\|anchor="H2.3.3A0InterruptPin"]]\|(((
	286	[[Temperature (Optional )>>\|\|anchor="H2.3.4A0DS18B20Temperaturesensor"]]
	287	)))\|[[Sensor Flag>>\|\|anchor="H2.3.5A0SensorFlag"]]
1.1	288
70.10	289	[[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	290
	291
70.10	292	=== 2.3.1 Battery Info ===
1.1	293
	294
71.3	295	Check the battery voltage for DDS45-LB.
1.1	296
70.10	297	Ex1: 0x0B45 = 2885mV
1.1	298
70.10	299	Ex2: 0x0B49 = 2889mV
46.1	300
1.1	301
70.10	302	=== 2.3.2 Distance ===
67.7	303
	304
70.10	305	(((
73.5	306	Get the distance. Flat object range 30mm - 4500mm.
62.5	307	)))
1.1	308
62.5	309	(((
73.5	310	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	311
73.5	312	(% style="color:blue" %)0B05(H) = 2821 (D) = 2821 mm.
62.5	313	)))
1.1	314
70.10	315	* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
73.5	316	* If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
67.7	317
73.6	318
	319
70.10	320	=== 2.3.3 Interrupt Pin ===
67.7	321
10.1	322
70.22	323	This data field shows if this packet is generated by interrupt or not. [[Click here>>\|\|anchor="H3.3.2SetInterruptMode"]] for the hardware and software set up.
1.1	324
70.10	325	Example:
1.1	326
70.10	327	0x00: Normal uplink packet.
1.1	328
70.10	329	0x01: Interrupt Uplink Packet.
1.1	330
	331
70.10	332	=== 2.3.4 DS18B20 Temperature sensor ===
62.5	333
1.1	334
70.10	335	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	336
70.10	337	Example:
1.1	338
70.10	339	If payload is: 0105H: (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
39.5	340
70.10	341	If payload is: FF3FH : (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
1.1	342
	343
70.10	344	=== 2.3.5 Sensor Flag ===
1.1	345
	346
55.1	347	(((
70.10	348	0x01: Detect Ultrasonic Sensor
55.1	349	)))
	350
	351	(((
70.10	352	0x00: No Ultrasonic Sensor
55.1	353	)))
46.1	354
	355
70.10	356	=== 2.3.6 Decode payload in The Things Network ===
1.1	357
55.1	358
70.10	359	While using TTN network, you can add the payload format to decode the payload.
1.1	360
70.10	361	[[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	362
70.10	363	The payload decoder function for TTN V3 is here:
1.1	364
62.5	365	(((
71.3	366	DDS45-LB TTN V3 Payload Decoder: [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
62.5	367	)))
1.1	368
	369
70.10	370	== 2.4 Uplink Interval ==
1.1	371
	372
71.3	373	The DDS45-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>>\|\|anchor="H3.3.1SetTransmitIntervalTime"]]
1.1	374
70.10	375
	376	== 2.5 Show Data in DataCake IoT Server ==
	377
	378
62.5	379	(((
70.10	380	[[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	381	)))
1.1	382
	383
62.5	384	(((
70.10	385	(% style="color:blue" %)Step 1(%%): Be sure that your device is programmed and properly connected to the network at this time.
62.5	386	)))
1.1	387
62.5	388	(((
70.10	389	(% 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	390	)))
14.26	391
55.1	392
70.10	393	[[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	394
	395
70.10	396	[[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	397
	398
70.10	399	(% style="color:blue" %)Step 3(%%): Create an account or log in Datacake.
1.1	400
71.3	401	(% style="color:blue" %)Step 4(%%): Search the DDS45-LB and add DevEUI.
1.1	402
70.10	403	[[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	404
1.1	405
70.10	406	After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
1.1	407
70.10	408	[[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	409
	410
	411
70.10	412	== 2.6 Datalog Feature ==
1.1	413
	414
71.3	415	Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DDS45-LB will store the reading for future retrieving purposes.
62.5	416
	417
70.10	418	=== 2.6.1 Ways to get datalog via LoRaWAN ===
62.5	419
	420
71.3	421	Set PNACKMD=1, DDS45-LB will wait for ACK for every uplink, when there is no LoRaWAN network,DDS45-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	422
	423	* (((
71.3	424	a) DDS45-LB will do an ACK check for data records sending to make sure every data arrive server.
62.5	425	)))
	426	* (((
71.3	427	b) DDS45-LB will send data in CONFIRMED Mode when PNACKMD=1, but DDS45-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 DDS45-LB gets a ACK, DDS45-LB will consider there is a network connection and resend all NONE-ACK messages.
62.5	428	)))
	429
	430	Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
	431
	432	[[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"]]
	433
	434
70.10	435	=== 2.6.2 Unix TimeStamp ===
62.5	436
	437
71.3	438	DDS45-LB uses Unix TimeStamp format based on
62.5	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-20220523001219-11.png?width=627&height=97&rev=1.1\|\|alt="图片-20220523001219-11.png" height="97" width="627"]]
	441
	442	User can get this time from link: [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
	443
	444	Below is the converter example
	445
	446	[[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"]]
	447
	448
	449	So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
	450
	451
70.10	452	=== 2.6.3 Set Device Time ===
62.5	453
	454
	455	User need to set (% style="color:blue" %)SYNCMOD=1(%%) to enable sync time via MAC command.
	456
71.4	457	Once DDS45-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DDS45-LB. If DDS45-LB fails to get the time from the server, DDS45-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	458
	459	(% 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.
	460
	461
70.10	462	=== 2.6.4 Poll sensor value ===
62.5	463
	464
	465	Users can poll sensor values based on timestamps. Below is the downlink command.
	466
	467	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
	468	\|(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)Downlink Command to poll Open/Close status (0x31)
	469	\|(% style="width:58px" %)1byte\|(% style="width:127px" %)4bytes\|(% style="width:124px" %)4bytes\|(% style="width:114px" %)1byte
	470	\|(% style="width:58px" %)31\|(% style="width:127px" %)Timestamp start\|(% style="width:124px" %)Timestamp end\|(% style="width:114px" %)Uplink Interval
	471
	472	(((
	473	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.
	474	)))
	475
	476	(((
64.8	477	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	478	)))
	479
	480	(((
	481	Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
	482	)))
	483
	484	(((
71.3	485	Uplink Internal =5s，means DDS45-LB will send one packet every 5s. range 5~~255s.
62.5	486	)))
	487
	488
70.10	489	== 2.7 Frequency Plans ==
1.1	490
	491
71.3	492	The DDS45-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	493
	494	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
	495
	496
71.3	497	= 3. Configure DDS45-LB =
1.1	498
16.4	499	== 3.1 Configure Methods ==
1.1	500
	501
71.3	502	DDS45-LB supports below configure method:
1.1	503
	504	* AT Command via Bluetooth Connection (Recommended): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
67.20	505
11.1	506	* 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	507
1.1	508	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
	509
73.9	510
	511
1.1	512	== 3.2 General Commands ==
	513
	514
	515	These commands are to configure:
	516
	517	* General system settings like: uplink interval.
67.20	518
1.1	519	* LoRaWAN protocol & radio related command.
	520
	521	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	522
	523	[[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/]]
	524
	525
71.3	526	== 3.3 Commands special design for DDS45-LB ==
1.1	527
	528
71.3	529	These commands only valid for DDS45-LB, as below:
1.1	530
	531
	532	=== 3.3.1 Set Transmit Interval Time ===
	533
	534
62.5	535	(((
1.1	536	Feature: Change LoRaWAN End Node Transmit Interval.
62.5	537	)))
	538
	539	(((
1.1	540	(% style="color:blue" %)AT Command: AT+TDC
62.5	541	)))
1.1	542
14.34	543	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
62.5	544	\|=(% 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	545	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
	546	30000
	547	OK
	548	the interval is 30000ms = 30s
	549	)))
	550	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
	551	OK
	552	Set transmit interval to 60000ms = 60 seconds
	553	)))
	554
62.5	555	(((
1.1	556	(% style="color:blue" %)Downlink Command: 0x01
62.5	557	)))
1.1	558
62.5	559	(((
1.1	560	Format: Command Code (0x01) followed by 3 bytes time value.
62.5	561	)))
1.1	562
62.5	563	(((
1.1	564	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	565	)))
1.1	566
62.5	567	* (((
	568	Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	569	)))
	570	* (((
73.8	571	Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
73.7	572	)))
70.29	573
	574
1.1	575
70.11	576	=== 3.3.2 Set Interrupt Mode ===
62.5	577
	578
43.1	579	Feature, Set Interrupt mode for PA8 of pin.
1.1	580
46.1	581	When AT+INTMOD=0 is set, PA8 is used as a digital input port.
	582
1.1	583	(% style="color:blue" %)AT Command: AT+INTMOD
	584
14.34	585	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
62.5	586	\|=(% 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	587	\|(% style="width:154px" %)AT+INTMOD=?\|(% style="width:196px" %)Show current interrupt mode\|(% style="width:157px" %)(((
	588	0
	589	OK
	590	the mode is 0 =Disable Interrupt
	591	)))
	592	\|(% style="width:154px" %)AT+INTMOD=2\|(% style="width:196px" %)(((
	593	Set Transmit Interval
	594	0. (Disable Interrupt),
	595	~1. (Trigger by rising and falling edge)
	596	2. (Trigger by falling edge)
	597	3. (Trigger by rising edge)
	598	)))\|(% style="width:157px" %)OK
	599
	600	(% style="color:blue" %)Downlink Command: 0x06
	601
	602	Format: Command Code (0x06) followed by 3 bytes.
	603
	604	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	605
	606	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
62.6	607
1.1	608	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	609
73.7	610
	611
16.4	612	= 4. Battery & Power Consumption =
14.45	613
1.1	614
71.3	615	DDS45-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
1.1	616
	617	[[Battery Info & Power Consumption Analyze>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	618
	619
16.4	620	= 5. OTA Firmware update =
1.1	621
	622
13.1	623	(% class="wikigeneratedid" %)
71.4	624	User can change firmware DDS45-LB to:
1.1	625
13.1	626	* Change Frequency band/ region.
62.7	627
13.1	628	* Update with new features.
62.7	629
13.1	630	* Fix bugs.
1.1	631
73.7	632	Firmware and changelog can be downloaded from : [[Firmware download link>>url:https://www.dropbox.com/sh/a5ue0nfrzqy9nz6/AABbvlATosDJKDwBmbirVbMYa?dl=0]]
1.1	633
31.1	634	Methods to Update Firmware:
1.1	635
70.18	636	* (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	637
70.18	638	* 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	639
73.7	640
	641
31.1	642	= 6. FAQ =
1.1	643
71.4	644	== 6.1 What is the frequency plan for DDS45-LB? ==
1.1	645
62.7	646
71.4	647	DDS45-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	648
1.1	649
71.4	650	== 6.2 Can I use DDS45-LB in condensation environment? ==
1.1	651
	652
71.4	653	DDS45-LB is not suitable to be used in condensation environment. Condensation on the DDS45-LB probe will affect the reading and always got 0.
70.14	654
	655
	656	= 7. Trouble Shooting =
	657
	658	== 7.1 Why I can't join TTN V3 in US915 / AU915 bands? ==
	659
	660
	661	It is due to channel mapping. Please see below link: [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome\|\|anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	662
	663
	664	== 7.2 AT Command input doesn't work ==
	665
	666
	667	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.
	668
	669
	670	== 7.3 Why does the sensor reading show 0 or "No sensor" ==
	671
	672
	673	~1. The measurement object is very close to the sensor, but in the blind spot of the sensor.
	674
	675	2. Sensor wiring is disconnected
	676
	677	3. Not using the correct decoder
	678
	679
70.17	680	== 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	681
	682
	683	1) Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.)
	684
	685	2) Does it change with temperature, temperature will affect its measurement
	686
	687	3) If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode.
	688
	689	downlink command: (% style="color:blue" %)F1 01(%%), AT command: (% style="color:blue" %)AT+DDEBUG=1
	690
	691	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
	692
70.17	693	[[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	694
	695
	696	Its original payload will be longer than other data. Even though it is being parsed, it can be seen that it is abnormal data.
	697
	698	Please send the data to us for check.
	699
	700
	701	= 8. Order Info =
	702
	703
71.4	704	Part Number: (% style="color:blue" %)DDS45-LB-XXX
70.14	705
70.12	706	(% style="color:red" %)XXX(%%): The default frequency band
1.1	707
38.1	708	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
1.1	709
38.1	710	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
1.1	711
38.1	712	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
1.1	713
38.1	714	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
1.1	715
38.1	716	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
1.1	717
38.1	718	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
1.1	719
38.1	720	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
1.1	721
38.1	722	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
1.1	723
73.8	724
	725
70.14	726	= 9. Packing Info =
67.11	727
	728
39.1	729	(% style="color:#037691" %)Package Includes:
1.1	730
71.4	731	* DDS45-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
73.8	743
	744
70.14	745	= 10. Support =
	746
	747
31.1	748	* 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	749
	750	* 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 DDS20-LB_LoRaWAN_Ultrasonic_Liquid_Level_Sensor_User_Manual

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