Changes for page LMDS200 -- LoRaWAN Microwave Radar Distance Sensor User Manual

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Details

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1		-LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual
	1	+LDDS75 - LoRaWAN Distance Detection Sensor User Manual

Content

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1	1	(% style="text-align:center" %)
2		-[[image:1655254599445-662.png]]
	2	+[[image:1654846127817-788.png]]
3	3
	4	+**Contents:**
4	4
5	5
6	6
7		-**Table of Contents:**
8	8
9	9
10	10
11	11
12	12
13		-
14		-
15		-
16	16	= 1.  Introduction =
17	17
18		-== 1.1 ​ What is LoRaWAN Ultrasonic liquid level Sensor ==
	15	+== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
19	19
20	20	(((
21	21
22	22
23	23	(((
24		-(((
25		-(((
26		-The Dragino LDDS20 is a (% style="color:#4472c4" %)**LoRaWAN Ultrasonic liquid level sensor**(%%) for Internet of Things solution. It uses (% style="color:#4472c4" %)**none-contact method **(%%)to measure the height of liquid in a container without opening the container, and send the value via LoRaWAN network to IoT Server
27		-)))
	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.
28	28
29		-(((
30		-
	23	+
	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.
	25	+
	26	+
	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.
	28	+
	29	+
	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*.
	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	+
	36	+(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors
31	31	)))
	38	+)))
32	32
	40	+
	41	+[[image:1654847051249-359.png]]
	42	+
	43	+
	44	+
	45	+== ​1.2  Features ==
	46	+
	47	+* LoRaWAN 1.0.3 Class A
	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
	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
	57	+* IP66 Waterproof Enclosure
	58	+* 4000mAh or 8500mAh Battery for long term use
	59	+
	60	+
	61	+
	62	+== 1.3  Specification ==
	63	+
	64	+=== 1.3.1  Rated environmental conditions ===
	65	+
	66	+[[image:image-20220610154839-1.png]]
	67	+
	68	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
	69	+
	70	+**b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)**
	71	+
	72	+
	73	+
	74	+=== 1.3.2  Effective measurement range Reference beam pattern ===
	75	+
	76	+**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
	77	+
	78	+
	79	+
	80	+[[image:1654852253176-749.png]]
	81	+
	82	+
	83	+**(2)** **The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.**
	84	+
	85	+
	86	+[[image:1654852175653-550.png]](% style="display:none" %) ** **
	87	+
	88	+
	89	+
	90	+== 1.5 ​ Applications ==
	91	+
	92	+* Horizontal distance measurement
	93	+* Liquid level measurement
	94	+* Parking management system
	95	+* Object proximity and presence detection
	96	+* Intelligent trash can management system
	97	+* Robot obstacle avoidance
	98	+* Automatic control
	99	+* Sewer
	100	+* Bottom water level monitoring
	101	+
	102	+
	103	+
	104	+== 1.6  Pin mapping and power on ==
	105	+
	106	+
	107	+[[image:1654847583902-256.png]]
	108	+
	109	+
	110	+
	111	+= 2.  Configure LDDS75 to connect to LoRaWAN network =
	112	+
	113	+== 2.1  How it works ==
	114	+
33	33	(((
34		-The LDDS20 sensor is installed directly below the container to detect the height of the liquid level. User doesn’t need to open a hole on the container to be tested. The (% style="color:#4472c4" %)**none-contact measurement makes the measurement safety, easier and possible for some strict situation**.
	116	+The LDDS75 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
35	35	)))
36	36
37	37	(((
38		-
	120	+In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS75.
39	39	)))
40	40
	123	+
	124	+
	125	+== 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
	126	+
41	41	(((
42		-LDDS20 uses ultrasonic sensing technology for distance measurement. LDDS20 is of high accuracy to measure various liquid such as: (% style="color:#4472c4" %)**toxic substances**(%%), (% style="color:#4472c4" %)**strong acids**(%%), (% style="color:#4472c4" %)**strong alkalis**(%%) and (% style="color:#4472c4" %)**various pure liquids**(%%) in high-temperature and high-pressure airtight containers.
	128	+Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LG308>>url:http://www.dragino.com/products/lora/item/140-lg308.html]] as a LoRaWAN gateway in this example.
43	43	)))
44	44
45	45	(((
46		-
	132	+[[image:1654848616367-242.png]]
47	47	)))
48	48
49	49	(((
50		-The LoRa wireless technology used in LDDS20 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.
	136	+The LG308 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
51	51	)))
52	52
53	53	(((
54		-
	140	+(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
55	55	)))
56	56
57	57	(((
58		-LDDS20 is powered by (% style="color:#4472c4" %)**8500mA Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
	144	+Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
59	59	)))
60	60
	147	+[[image:image-20220607170145-1.jpeg]]
	148	+
	149	+
	150	+For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
	151	+
	152	+Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
	153	+
	154	+**Add APP EUI in the application**
	155	+
	156	+[[image:image-20220610161353-4.png]]
	157	+
	158	+[[image:image-20220610161353-5.png]]
	159	+
	160	+[[image:image-20220610161353-6.png]]
	161	+
	162	+
	163	+[[image:image-20220610161353-7.png]]
	164	+
	165	+
	166	+You can also choose to create the device manually.
	167	+
	168	+ [[image:image-20220610161538-8.png]]
	169	+
	170	+
	171	+
	172	+**Add APP KEY and DEV EUI**
	173	+
	174	+[[image:image-20220610161538-9.png]]
	175	+
	176	+
	177	+
	178	+(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
	179	+
	180	+
	181	+Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
	182	+
	183	+[[image:image-20220610161724-10.png]]
	184	+
	185	+
61	61	(((
62		-
	187	+(% style="color:blue" %)**Step 3**(%%)**:** The LDDS75 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
63	63	)))
64	64
	190	+[[image:1654849068701-275.png]]
	191	+
	192	+
	193	+
	194	+== 2.3  ​Uplink Payload ==
	195	+
65	65	(((
66		-Each LDDS20 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.
	197	+LDDS75 will uplink payload via LoRaWAN with below payload format:
	198	+
	199	+Uplink payload includes in total 4 bytes.
	200	+Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
67	67	)))
68	68
69	69	(((
70	70
71	71	)))
72		-)))
73	73
74		-(((
75		-(((
76		-(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
77		-)))
78		-)))
79		-)))
80		-)))
	207	+(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
	208	+|=(% style="width: 62.5px;" %)(((
	209	+**Size (bytes)**
	210	+)))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
	211	+|(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
	212	+[[Distance>>||anchor="H2.3.3A0Distance"]]
81	81
	214	+(unit: mm)
	215	+)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.4A0Distancesignalstrength"]]|(((
	216	+[[Temperature (Optional )>>||anchor="H2.3.5A0InterruptPin"]]
	217	+)))|[[Sensor Flag>>path:#Sensor_Flag]]
82	82
83		-[[image:1655255122126-327.png]]
	219	+[[image:1654850511545-399.png]]
84	84
85	85
86	86
87		-== ​1.2  Features ==
	223	+=== 2.3.1  Battery Info ===
88	88
89		-* LoRaWAN 1.0.3 Class A
90		-* Ultra low power consumption
91		-* Liquid Level Measurement by Ultrasonic technology
92		-* Measure through container, No need to contact Liquid.
93		-* Valid level range 20mm - 2000mm
94		-* Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
95		-* Cable Length : 25cm
96		-* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
97		-* AT Commands to change parameters
98		-* Uplink on periodically
99		-* Downlink to change configure
100		-* IP66 Waterproof Enclosure
101		-* 8500mAh Battery for long term use
102	102
103		-== 1.3  Suitable Container & Liquid ==
	226	+Check the battery voltage for LDDS75.
104	104
105		-* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
106		-* Container shape is regular, and surface is smooth.
107		-* Container Thickness:
108		-** Pure metal material.  2~~8mm, best is 3~~5mm
109		-** Pure non metal material: <10 mm
110		-* Pure liquid without irregular deposition.
	228	+Ex1: 0x0B45 = 2885mV
111	111
112		-== 1.4  Mechanical ==
	230	+Ex2: 0x0B49 = 2889mV
113	113
114		-[[image:image-20220615090910-1.png]]
115	115
116	116
117		-[[image:image-20220615090910-2.png]]
	234	+=== 2.3.2  Distance ===
118	118
	236	+Get the distance. Flat object range 280mm - 7500mm.
119	119
	238	+For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0B05(H) = 2821 (D) = 2821 mm.**
120	120
121		-== 1.5  Install LDDS20 ==
122	122
	241	+* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
	242	+* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
123	123
124		-(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
125	125
126		-LDDS20 (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
127	127
128		-[[image:image-20220615091045-3.png]]
	246	+=== 2.3.3  Interrupt Pin ===
129	129
	248	+This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H4.2A0SetInterruptMode"]] for the hardware and software set up.
130	130
	250	+**Example:**
131	131
132		-(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
	252	+0x00: Normal uplink packet.
133	133
134		-For Metal Surface with paint, it is important to polish the surface, first use crude sand paper to polish the paint level , then use exquisite sand paper to polish the metal level to make it shine & smooth.
	254	+0x01: Interrupt Uplink Packet.
135	135
136		-[[image:image-20220615092010-11.png]]
137	137
138	138
139		-No polish needed if the container is shine metal surface without paint or non-metal container.
	258	+=== 2.3.4  DS18B20 Temperature sensor ===
140	140
141		-[[image:image-20220615092044-12.png]]
	260	+This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
142	142
	262	+**Example**:
143	143
	264	+If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
144	144
145		-(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
	266	+If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
146	146
147		-Power on LDDS75, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
	268	+(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
148	148
149	149
150		-It is necessary to put the coupling paste between the sensor and the container, otherwise LDDS20 won’t detect the liquid level.
151	151
152		-[[image:1655256160324-178.png]][[image:image-20220615092327-13.png]]
	272	+=== 2.3.5  Sensor Flag ===
153	153
	274	+0x01: Detect Ultrasonic Sensor
154	154
155		-After paste the LDDS20 well, power on LDDS20. In the first 30 seconds of booting, device will check the sensors status and BLUE LED will show the status as below. After 30 seconds, BLUE LED will be off to save battery life.
	276	+0x00: No Ultrasonic Sensor
156	156
157	157
158		-(% style="color:red" %)**LED Status:**
	279	+===
	280	+(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
159	159
160		-* Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
	282	+While using TTN network, you can add the payload format to decode the payload.
161	161
162		-* (% style="color:blue" %)BLUE LED(% style="color:red" %) always ON(%%): Sensor is power on but doesn’t detect liquid. There is problem in installation point.
163		-* (% style="color:blue" %)BLUE LED(% style="color:red" %) slowly blinking(%%): Sensor detects Liquid Level, The installation point is good.
164	164
165		-LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
	285	+[[image:1654850829385-439.png]]
166	166
	287	+The payload decoder function for TTN V3 is here:
167	167
168		-(% style="color:red" %)**Note 2:**
	289	+LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
169	169
170		-(% style="color:red" %)Ultrasonic coupling paste (%%) is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
171	171
172	172
	293	+== 2.4  Uplink Interval ==
173	173
174		-(% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
	295	+The LDDS75 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]]
175	175
176		-Prepare Eproxy AB glue.
177	177
178		-Put Eproxy AB glue in the sensor and press it hard on the container installation point.
179	179
180		-Reset LDDS20 and see if the BLUE LED is slowly blinking.
	299	+== 2.5  ​Show Data in DataCake IoT Server ==
181	181
182		-[[image:image-20220615091045-8.png||height="226" width="380"]] [[image:image-20220615091045-9.png||height="239" width="339"]]
	301	+(((
	302	+[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
	303	+)))
183	183
	305	+(((
	306	+
	307	+)))
184	184
185		-(% style="color:red" %)**Note 1:**
	309	+(((
	310	+(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
	311	+)))
186	186
187		-Eproxy AB glue needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
	313	+(((
	314	+(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
	315	+)))
188	188
189	189
190		-(% style="color:red" %)**Note 2:**
	318	+[[image:1654592790040-760.png]]
191	191
192		-(% style="color:red" %)Eproxy AB glue(%%) is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
193	193
	321	+[[image:1654592800389-571.png]]
194	194
195	195
196		-== 1.6 ​ Applications ==
	324	+(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
197	197
198		-* Smart liquid control solution.
199		-* Smart liquefied gas solution.
	326	+(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
200	200
201		-== 1.7  Precautions ==
	328	+[[image:1654851029373-510.png]]
202	202
203		-* At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
204		-* For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
205		-* When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable.
206	206
207		-== 1.8  Pin mapping and power on ==
	331	+After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
208	208
	333	+[[image:image-20220610165129-11.png||height="595" width="1088"]]
209	209
210		-[[image:1655257026882-201.png]]
211	211
212	212
	337	+== 2.6  Frequency Plans ==
213	213
214		-= 2.  Configure LDDS20 to connect to LoRaWAN network =
	339	+(((
	340	+The LDDS75 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
	341	+)))
215	215
216	216
217		-== 2.1  How it works ==
218	218
	345	+=== 2.6.1  EU863-870 (EU868) ===
	346	+
219	219	(((
220		-The LDDS20 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 LDDS20. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value.
	348	+(% style="color:blue" %)**Uplink:**
221	221	)))
222	222
223	223	(((
224		-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.A0UsingtheATCommands"]]to set the keys in the LDDS20.
	352	+868.1 - SF7BW125 to SF12BW125
225	225	)))
226	226
	355	+(((
	356	+868.3 - SF7BW125 to SF12BW125 and SF7BW250
	357	+)))
227	227
	359	+(((
	360	+868.5 - SF7BW125 to SF12BW125
	361	+)))
228	228
229		-== 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
	363	+(((
	364	+867.1 - SF7BW125 to SF12BW125
	365	+)))
230	230
231	231	(((
232		-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.
	368	+867.3 - SF7BW125 to SF12BW125
233	233	)))
234	234
235	235	(((
236		-[[image:1655257698953-697.png]]
	372	+867.5 - SF7BW125 to SF12BW125
237	237	)))
238	238
239	239	(((
240		-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.
	376	+867.7 - SF7BW125 to SF12BW125
241	241	)))
242	242
243	243	(((
244		-
	380	+867.9 - SF7BW125 to SF12BW125
	381	+)))
245	245
246		-(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS20.
	383	+(((
	384	+868.8 - FSK
247	247	)))
248	248
249	249	(((
250		-Each LDDS20 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
	388	+
251	251	)))
252	252
253		-[[image:image-20220607170145-1.jpeg]]
	391	+(((
	392	+(% style="color:blue" %)**Downlink:**
	393	+)))
254	254
255		-
256	256	(((
257		-For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
	396	+Uplink channels 1-9 (RX1)
258	258	)))
259	259
260	260	(((
261		-Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
	400	+869.525 - SF9BW125 (RX2 downlink only)
262	262	)))
263	263
	403	+
	404	+
	405	+=== 2.6.2  US902-928(US915) ===
	406	+
264	264	(((
265		-
	408	+Used in USA, Canada and South America. Default use CHE=2
266	266
267		-**Add APP EUI in the application**
268		-)))
	410	+(% style="color:blue" %)**Uplink:**
269	269
270		-[[image:image-20220610161353-4.png]]
	412	+903.9 - SF7BW125 to SF10BW125
271	271
272		-[[image:image-20220610161353-5.png]]
	414	+904.1 - SF7BW125 to SF10BW125
273	273
274		-[[image:image-20220610161353-6.png]]
	416	+904.3 - SF7BW125 to SF10BW125
275	275
	418	+904.5 - SF7BW125 to SF10BW125
276	276
277		-[[image:image-20220610161353-7.png]]
	420	+904.7 - SF7BW125 to SF10BW125
278	278
	422	+904.9 - SF7BW125 to SF10BW125
279	279
	424	+905.1 - SF7BW125 to SF10BW125
280	280
281		-You can also choose to create the device manually.
	426	+905.3 - SF7BW125 to SF10BW125
282	282
283		- [[image:image-20220610161538-8.png]]
284	284
	429	+(% style="color:blue" %)**Downlink:**
285	285
	431	+923.3 - SF7BW500 to SF12BW500
286	286
287		-**Add APP KEY and DEV EUI**
	433	+923.9 - SF7BW500 to SF12BW500
288	288
289		-[[image:image-20220610161538-9.png]]
	435	+924.5 - SF7BW500 to SF12BW500
290	290
	437	+925.1 - SF7BW500 to SF12BW500
291	291
	439	+925.7 - SF7BW500 to SF12BW500
292	292
293		-(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
	441	+926.3 - SF7BW500 to SF12BW500
294	294
	443	+926.9 - SF7BW500 to SF12BW500
295	295
296		-Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
	445	+927.5 - SF7BW500 to SF12BW500
297	297
298		-[[image:image-20220615095102-14.png]]
	447	+923.3 - SF12BW500(RX2 downlink only)
299	299
300	300
	450	+
	451	+)))
301	301
	453	+=== 2.6.3  CN470-510 (CN470) ===
	454	+
302	302	(((
303		-(% style="color:blue" %)**Step 3**(%%)**:**  The LDDS20 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.
	456	+Used in China, Default use CHE=1
304	304	)))
305	305
306		-[[image:1654849068701-275.png]]
	459	+(((
	460	+(% style="color:blue" %)**Uplink:**
	461	+)))
307	307
	463	+(((
	464	+486.3 - SF7BW125 to SF12BW125
	465	+)))
308	308
	467	+(((
	468	+486.5 - SF7BW125 to SF12BW125
	469	+)))
309	309
310		-== 2.3  ​Uplink Payload ==
	471	+(((
	472	+486.7 - SF7BW125 to SF12BW125
	473	+)))
311	311
312	312	(((
	476	+486.9 - SF7BW125 to SF12BW125
	477	+)))
	478	+
313	313	(((
314		-LDDS20 will uplink payload via LoRaWAN with below payload format:
	480	+487.1 - SF7BW125 to SF12BW125
	481	+)))
315	315
316		-Uplink payload includes in total 8 bytes.
317		-Payload for firmware version v1.1.4. . Before v1.1.3, there is only 5 bytes: BAT and Distance(Please check manual v1.2.0 if you have 5 bytes payload).
	483	+(((
	484	+487.3 - SF7BW125 to SF12BW125
318	318	)))
	486	+
	487	+(((
	488	+487.5 - SF7BW125 to SF12BW125
319	319	)))
320	320
321	321	(((
	492	+487.7 - SF7BW125 to SF12BW125
	493	+)))
	494	+
	495	+(((
322	322
323	323	)))
324	324
325		-(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
326		-|=(% style="width: 62.5px;" %)(((
327		-**Size (bytes)**
328		-)))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
329		-|(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
330		-[[Distance>>||anchor="H2.3.2A0Distance"]]
	499	+(((
	500	+(% style="color:blue" %)**Downlink:**
	501	+)))
331	331
332		-(unit: mm)
333		-)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
334		-[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
335		-)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
	503	+(((
	504	+506.7 - SF7BW125 to SF12BW125
	505	+)))
336	336
337		-[[image:1654850511545-399.png]]
	507	+(((
	508	+506.9 - SF7BW125 to SF12BW125
	509	+)))
338	338
	511	+(((
	512	+507.1 - SF7BW125 to SF12BW125
	513	+)))
339	339
	515	+(((
	516	+507.3 - SF7BW125 to SF12BW125
	517	+)))
340	340
341		-=== 2.3.1  Battery Info ===
	519	+(((
	520	+507.5 - SF7BW125 to SF12BW125
	521	+)))
342	342
	523	+(((
	524	+507.7 - SF7BW125 to SF12BW125
	525	+)))
343	343
344		-Check the battery voltage for LDDS20.
	527	+(((
	528	+507.9 - SF7BW125 to SF12BW125
	529	+)))
345	345
346		-Ex1: 0x0B45 = 2885mV
	531	+(((
	532	+508.1 - SF7BW125 to SF12BW125
	533	+)))
347	347
348		-Ex2: 0x0B49 = 2889mV
	535	+(((
	536	+505.3 - SF12BW125 (RX2 downlink only)
	537	+)))
349	349
350	350
351	351
352		-=== 2.3.2  Distance ===
	541	+=== 2.6.4  AU915-928(AU915) ===
353	353
354	354	(((
355		-Get the distance. Flat object range 20mm - 2000mm.
356		-)))
	544	+Default use CHE=2
357	357
358		-(((
359		-For example, if the data you get from the register is __0x06 0x05__, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0605(H) = 1541 (D) = 1541 mm.**
360		-)))
	546	+(% style="color:blue" %)**Uplink:**
361	361
362		-* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
363		-* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
	548	+916.8 - SF7BW125 to SF12BW125
364	364
	550	+917.0 - SF7BW125 to SF12BW125
365	365
366		-=== 2.3.3  Interrupt Pin ===
	552	+917.2 - SF7BW125 to SF12BW125
367	367
368		-This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.2A0SetInterruptMode"]] for the hardware and software set up.
	554	+917.4 - SF7BW125 to SF12BW125
369	369
370		-**Example:**
	556	+917.6 - SF7BW125 to SF12BW125
371	371
372		-0x00: Normal uplink packet.
	558	+917.8 - SF7BW125 to SF12BW125
373	373
374		-0x01: Interrupt Uplink Packet.
	560	+918.0 - SF7BW125 to SF12BW125
375	375
	562	+918.2 - SF7BW125 to SF12BW125
376	376
377	377
378		-=== 2.3.4  DS18B20 Temperature sensor ===
	565	+(% style="color:blue" %)**Downlink:**
379	379
380		-This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
	567	+923.3 - SF7BW500 to SF12BW500
381	381
382		-**Example**:
	569	+923.9 - SF7BW500 to SF12BW500
383	383
384		-If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
	571	+924.5 - SF7BW500 to SF12BW500
385	385
386		-If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	573	+925.1 - SF7BW500 to SF12BW500
387	387
388		-(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
	575	+925.7 - SF7BW500 to SF12BW500
389	389
	577	+926.3 - SF7BW500 to SF12BW500
390	390
	579	+926.9 - SF7BW500 to SF12BW500
391	391
392		-=== 2.3.5  Sensor Flag ===
	581	+927.5 - SF7BW500 to SF12BW500
393	393
	583	+923.3 - SF12BW500(RX2 downlink only)
	584	+
	585	+
	586	+
	587	+)))
	588	+
	589	+=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
	590	+
394	394	(((
395		-0x01: Detect Ultrasonic Sensor
	592	+(% style="color:blue" %)**Default Uplink channel:**
396	396	)))
397	397
398	398	(((
399		-0x00: No Ultrasonic Sensor
	596	+923.2 - SF7BW125 to SF10BW125
400	400	)))
401	401
	599	+(((
	600	+923.4 - SF7BW125 to SF10BW125
	601	+)))
402	402
	603	+(((
	604	+
	605	+)))
403	403
404		-=== 2.3.6  Decode payload in The Things Network ===
	607	+(((
	608	+(% style="color:blue" %)**Additional Uplink Channel**:
	609	+)))
405	405
406		-While using TTN network, you can add the payload format to decode the payload.
	611	+(((
	612	+(OTAA mode, channel added by JoinAccept message)
	613	+)))
407	407
	615	+(((
	616	+
	617	+)))
408	408
409		-[[image:1655261164557-670.png]]
	619	+(((
	620	+(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
	621	+)))
410	410
411		-The payload decoder function for TTN V3 is here:
	623	+(((
	624	+922.2 - SF7BW125 to SF10BW125
	625	+)))
412	412
413	413	(((
414		-LDDS20 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS20/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
	628	+922.4 - SF7BW125 to SF10BW125
415	415	)))
416	416
	631	+(((
	632	+922.6 - SF7BW125 to SF10BW125
	633	+)))
417	417
	635	+(((
	636	+922.8 - SF7BW125 to SF10BW125
	637	+)))
418	418
419		-== 2.4  Downlink Payload ==
	639	+(((
	640	+923.0 - SF7BW125 to SF10BW125
	641	+)))
420	420
421		-By default, LDDS20 prints the downlink payload to console port.
	643	+(((
	644	+922.0 - SF7BW125 to SF10BW125
	645	+)))
422	422
423		-[[image:image-20220615100930-15.png]]
	647	+(((
	648	+
	649	+)))
424	424
	651	+(((
	652	+(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
	653	+)))
425	425
426		-**Examples:**
	655	+(((
	656	+923.6 - SF7BW125 to SF10BW125
	657	+)))
427	427
	659	+(((
	660	+923.8 - SF7BW125 to SF10BW125
	661	+)))
428	428
429		-* (% style="color:blue" %)**Set TDC**
	663	+(((
	664	+924.0 - SF7BW125 to SF10BW125
	665	+)))
430	430
431		-If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
	667	+(((
	668	+924.2 - SF7BW125 to SF10BW125
	669	+)))
432	432
433		-Payload:    01 00 00 1E    TDC=30S
	671	+(((
	672	+924.4 - SF7BW125 to SF10BW125
	673	+)))
434	434
435		-Payload:    01 00 00 3C    TDC=60S
	675	+(((
	676	+924.6 - SF7BW125 to SF10BW125
	677	+)))
436	436
	679	+(((
	680	+
	681	+)))
437	437
438		-* (% style="color:blue" %)**Reset**
	683	+(((
	684	+(% style="color:blue" %)**Downlink:**
	685	+)))
439	439
440		-If payload = 0x04FF, it will reset the LDDS20
	687	+(((
	688	+Uplink channels 1-8 (RX1)
	689	+)))
441	441
	691	+(((
	692	+923.2 - SF10BW125 (RX2)
	693	+)))
442	442
443		-* (% style="color:blue" %)**CFM**
444	444
445		-Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
446	446
	697	+=== 2.6.6  KR920-923 (KR920) ===
447	447
	699	+(((
	700	+(% style="color:blue" %)**Default channel:**
	701	+)))
448	448
449		-== 2.5  ​Show Data in DataCake IoT Server ==
	703	+(((
	704	+922.1 - SF7BW125 to SF12BW125
	705	+)))
450	450
451	451	(((
452		-[[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:
	708	+922.3 - SF7BW125 to SF12BW125
453	453	)))
454	454
455	455	(((
	712	+922.5 - SF7BW125 to SF12BW125
	713	+)))
	714	+
	715	+(((
456	456
457	457	)))
458	458
459	459	(((
460		-(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
	720	+(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
461	461	)))
462	462
463	463	(((
464		-(% 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:**
	724	+922.1 - SF7BW125 to SF12BW125
465	465	)))
466	466
	727	+(((
	728	+922.3 - SF7BW125 to SF12BW125
	729	+)))
467	467
468		-[[image:1654592790040-760.png]]
	731	+(((
	732	+922.5 - SF7BW125 to SF12BW125
	733	+)))
469	469
	735	+(((
	736	+922.7 - SF7BW125 to SF12BW125
	737	+)))
470	470
471		-[[image:1654592800389-571.png]]
	739	+(((
	740	+922.9 - SF7BW125 to SF12BW125
	741	+)))
472	472
	743	+(((
	744	+923.1 - SF7BW125 to SF12BW125
	745	+)))
473	473
474		-(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
	747	+(((
	748	+923.3 - SF7BW125 to SF12BW125
	749	+)))
475	475
476		-(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
	751	+(((
	752	+
	753	+)))
477	477
478		-[[image:1654851029373-510.png]]
	755	+(((
	756	+(% style="color:blue" %)**Downlink:**
	757	+)))
479	479
	759	+(((
	760	+Uplink channels 1-7(RX1)
	761	+)))
480	480
481		-After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
	763	+(((
	764	+921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
	765	+)))
482	482
483		-[[image:image-20220610165129-11.png||height="595" width="1088"]]
484	484
485	485
	769	+=== 2.6.7  IN865-867 (IN865) ===
486	486
487		-== 2.6  LED Indicator ==
	771	+(((
	772	+(% style="color:blue" %)**Uplink:**
	773	+)))
488	488
489		-The LDDS20 has an internal LED which is to show the status of different state.
	775	+(((
	776	+865.0625 - SF7BW125 to SF12BW125
	777	+)))
490	490
	779	+(((
	780	+865.4025 - SF7BW125 to SF12BW125
	781	+)))
491	491
492		-* Blink once when device power on.
493		-* The device detects the sensor and flashes 5 times.
494		-* Solid ON for 5 seconds once device successful Join the network.
495		-* Blink once when device transmit a packet.
	783	+(((
	784	+865.9850 - SF7BW125 to SF12BW125
	785	+)))
496	496
	787	+(((
	788	+
	789	+)))
497	497
498		-== 2.7  ​Firmware Change Log ==
499		-
500		-
501	501	(((
502		-**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/]]
	792	+(% style="color:blue" %)**Downlink:**
503	503	)))
504	504
505	505	(((
506		-
	796	+Uplink channels 1-3 (RX1)
507	507	)))
508	508
509	509	(((
510		-**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
	800	+866.550 - SF10BW125 (RX2)
511	511	)))
512	512
513	513
514	514
515		-== 2.8  Battery Analysis ==
	805	+== 2.7  LED Indicator ==
516	516
	807	+The LDDS75 has an internal LED which is to show the status of different state.
517	517
518	518
	810	+* Blink once when device power on.
	811	+* The device detects the sensor and flashes 5 times.
	812	+* Solid ON for 5 seconds once device successful Join the network.
	813	+* Blink once when device transmit a packet.
519	519
520		-=== 2.8.1  Battery Type ===
521	521
522		-The LDDS20 battery is a combination of a 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.
523	523
	817	+== 2.8  ​Firmware Change Log ==
524	524
	819	+
	820	+**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
	821	+
	822	+
	823	+**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
	824	+
	825	+
	826	+
	827	+== 2.9  Mechanical ==
	828	+
	829	+
	830	+[[image:image-20220610172003-1.png]]
	831	+
	832	+[[image:image-20220610172003-2.png]]
	833	+
	834	+
	835	+== 2.10  Battery Analysis  ==
	836	+
	837	+=== 2.10.1  Battery Type ===
	838	+
	839	+The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
	840	+
	841	+
525	525	The battery related documents as below:
526	526
527	527	* (((
528		-[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
	845	+[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
529	529	)))
530	530	* (((
531		-[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
	848	+[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
532	532	)))
533	533	* (((
534		-[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	851	+[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
535	535	)))
536	536
537		- [[image:image-20220615102527-16.png]]
	854	+ [[image:image-20220610172400-3.png]]
538	538
539	539
	857	+= 3.  LiDAR ToF Measurement =
540	540
541		-== 2.8.2  Battery Note ==
	859	+== 3.1 Principle of Distance Measurement ==
542	542
543		-The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to uplink data, then the battery life may be decreased.
	861	+The LiDAR probe is based on TOF, namely, Time of Flight principle. To be specific, the product emits modulation wave of near infrared ray on a periodic basis, which will be reflected after contacting object. The product obtains the time of flight by measuring round-trip phase difference and then calculates relative range between the product and the detection object, as shown below.
544	544
	863	+[[image:1654831757579-263.png]]
545	545
546	546
547		-=== 2.8.3  Replace the battery ===
548	548
	867	+== 3.2 Distance Measurement Characteristics ==
	868	+
	869	+With optimization of light path and algorithm, The LiDAR probe has minimized influence from external environment on distance measurement performance. Despite that, the range of distance measurement may still be affected by the environment illumination intensity and the reflectivity of detection object. As shown in below:
	870	+
	871	+[[image:1654831774373-275.png]]
	872	+
	873	+
549	549	(((
550		-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.
	875	+(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
551	551	)))
552	552
553	553	(((
554		-
	879	+(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
555	555	)))
556	556
557	557	(((
558		-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)
	883	+(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
559	559	)))
560	560
561	561
	887	+(((
	888	+Vertical Coordinates: Represents the radius of light spot for The LiDAR probe at the different distances. The diameter of light spot depends on the FOV of The LiDAR probe (the term of FOV generally refers to the smaller value between the receiving angle and the transmitting angle), which is calculated as follows:
	889	+)))
562	562
563		-== 2.8.4  Battery Life Analyze ==
564	564
565		-Dragino battery powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimate battery life:
	892	+[[image:1654831797521-720.png]]
566	566
567		-[[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
568	568
	895	+(((
	896	+In the formula above, d is the diameter of light spot; D is detecting range; β is the value of the receiving angle of The LiDAR probe, 3.6°. Correspondence between the diameter of light spot and detecting range is given in Table below.
	897	+)))
569	569
	899	+[[image:1654831810009-716.png]]
570	570
571		-= 3.  Using the AT Commands =
572	572
573	573	(((
	903	+If the light spot reaches two objects with different distances, as shown in Figure 3, the output distance value will be a value between the actual distance values of the two objects. For a high accuracy requirement in practice, the above situation should be noticed to avoid the measurement error.
	904	+)))
	905	+
	906	+
	907	+
	908	+== 3.3 Notice of usage: ==
	909	+
	910	+Possible invalid /wrong reading for LiDAR ToF tech:
	911	+
	912	+* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
	913	+* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
	914	+* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
	915	+* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
	916	+
	917	+= 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
	918	+
574	574	(((
575		-
	920	+(((
	921	+Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
576	576	)))
577	577	)))
578	578
579		-== 3.1  Access AT Commands ==
	925	+* (((
	926	+(((
	927	+AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
	928	+)))
	929	+)))
	930	+* (((
	931	+(((
	932	+LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
	933	+)))
	934	+)))
580	580
581		-LDDS20 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS20 for using AT command, as below.
	936	+(((
	937	+(((
	938	+
	939	+)))
582	582
	941	+(((
	942	+There are two kinds of commands to configure LLDS12, they are:
	943	+)))
	944	+)))
583	583
584		-[[image:image-20220610172924-4.png||height="483" width="988"]]
	946	+* (((
	947	+(((
	948	+(% style="color:#4f81bd" %)** General Commands**.
	949	+)))
	950	+)))
585	585
	952	+(((
	953	+(((
	954	+These commands are to configure:
	955	+)))
	956	+)))
586	586
587		-Or if you have below board, use below connection:
	958	+* (((
	959	+(((
	960	+General system settings like: uplink interval.
	961	+)))
	962	+)))
	963	+* (((
	964	+(((
	965	+LoRaWAN protocol & radio related command.
	966	+)))
	967	+)))
588	588
	969	+(((
	970	+(((
	971	+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]]
	972	+)))
	973	+)))
589	589
590		-[[image:image-20220610172924-5.png]]
	975	+(((
	976	+(((
	977	+
	978	+)))
	979	+)))
591	591
	981	+* (((
	982	+(((
	983	+(% style="color:#4f81bd" %)** Commands special design for LLDS12**
	984	+)))
	985	+)))
592	592
593	593	(((
594		-In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS20. LDDS20 will output system info once power on as below:
	988	+(((
	989	+These commands only valid for LLDS12, as below:
595	595	)))
	991	+)))
596	596
597	597
598		- [[image:image-20220610172924-6.png||height="601" width="860"]]
599	599
600		-Below are the available commands, a more detailed AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/]].
	995	+== 4.1  Set Transmit Interval Time ==
601	601
	997	+Feature: Change LoRaWAN End Node Transmit Interval.
602	602
603		-AT+<CMD>?  :  Help on <CMD>
	999	+(% style="color:#037691" %)**AT Command: AT+TDC**
604	604
605		-AT+<CMD>  :  Run <CMD>
	1001	+[[image:image-20220607171554-8.png]]
606	606
607		-AT+<CMD>=<value>  :  Set the value
608	608
609		-AT+<CMD>=?  :  Get the value
	1004	+(((
	1005	+(% style="color:#037691" %)**Downlink Command: 0x01**
	1006	+)))
610	610
	1008	+(((
	1009	+Format: Command Code (0x01) followed by 3 bytes time value.
	1010	+)))
611	611
612		-(% style="color:#037691" %)** General Commands :**
	1012	+(((
	1013	+If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1014	+)))
613	613
614		-AT  :  Attention
	1016	+* (((
	1017	+Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	1018	+)))
	1019	+* (((
	1020	+Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1021	+)))
615	615
616		-AT?  :  Short Help
	1023	+== 4.2  Set Interrupt Mode ==
617	617
618		-ATZ :  MCU Reset
	1025	+Feature, Set Interrupt mode for GPIO_EXIT.
619	619
620		-AT+TDC :  Application Data Transmission Interval
	1027	+(% style="color:#037691" %)**AT Command: AT+INTMOD**
621	621
	1029	+[[image:image-20220610105806-2.png]]
622	622
623		-(% style="color:#037691" %)** Keys, IDs and EUIs management :**
624	624
625		-AT+APPEUI              : Application EUI
	1032	+(((
	1033	+(% style="color:#037691" %)**Downlink Command: 0x06**
	1034	+)))
626	626
627		-AT+APPKEY              : Application Key
	1036	+(((
	1037	+Format: Command Code (0x06) followed by 3 bytes.
	1038	+)))
628	628
629		-AT+APPSKEY            : Application Session Key
	1040	+(((
	1041	+This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1042	+)))
630	630
631		-AT+DADDR              : Device Address
	1044	+* (((
	1045	+Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	1046	+)))
	1047	+* (((
	1048	+Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	1049	+)))
632	632
633		-AT+DEUI                   : Device EUI
	1051	+== 4.3  Get Firmware Version Info ==
634	634
635		-AT+NWKID               : Network ID (You can enter this command change only after successful network connection)
	1053	+Feature: use downlink to get firmware version.
636	636
637		-AT+NWKSKEY          : Network Session Key Joining and sending date on LoRa network
	1055	+(% style="color:#037691" %)**Downlink Command: 0x26**
638	638
639		-AT+CFM          : Confirm Mode
	1057	+[[image:image-20220607171917-10.png]]
640	640
641		-AT+CFS                     : Confirm Status
	1059	+* Reply to the confirmation package: 26 01
	1060	+* Reply to non-confirmed packet: 26 00
642	642
643		-AT+JOIN          : Join LoRa? Network
	1062	+Device will send an uplink after got this downlink command. With below payload:
644	644
645		-AT+NJM          : LoRa? Network Join Mode
	1064	+Configures info payload:
646	646
647		-AT+NJS                     : LoRa? Network Join Status
	1066	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	1067	+|=(((
	1068	+**Size(bytes)**
	1069	+)))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1**
	1070	+|**Value**|Software Type|(((
	1071	+Frequency
648	648
649		-AT+RECV                  : Print Last Received Data in Raw Format
	1073	+Band
	1074	+)))|Sub-band|(((
	1075	+Firmware
650	650
651		-AT+RECVB                : Print Last Received Data in Binary Format
	1077	+Version
	1078	+)))|Sensor Type|Reserve|(((
	1079	+[[Message Type>>||anchor="H2.3.7A0MessageType"]]
	1080	+Always 0x02
	1081	+)))
652	652
653		-AT+SEND                  : Send Text Data
	1083	+**Software Type**: Always 0x03 for LLDS12
654	654
655		-AT+SENB                  : Send Hexadecimal Data
656	656
	1086	+**Frequency Band**:
657	657
658		-(% style="color:#037691" %)** LoRa Network Management :**
	1088	+*0x01: EU868
659	659
660		-AT+ADR          : Adaptive Rate
	1090	+*0x02: US915
661	661
662		-AT+CLASS                : LoRa Class(Currently only support class A
	1092	+*0x03: IN865
663	663
664		-AT+DCS           : Duty Cycle Setting
	1094	+*0x04: AU915
665	665
666		-AT+DR                      : Data Rate (Can Only be Modified after ADR=0)
	1096	+*0x05: KZ865
667	667
668		-AT+FCD           : Frame Counter Downlink
	1098	+*0x06: RU864
669	669
670		-AT+FCU           : Frame Counter Uplink
	1100	+*0x07: AS923
671	671
672		-AT+JN1DL                : Join Accept Delay1
	1102	+*0x08: AS923-1
673	673
674		-AT+JN2DL                : Join Accept Delay2
	1104	+*0x09: AS923-2
675	675
676		-AT+PNM                   : Public Network Mode
	1106	+*0xa0: AS923-3
677	677
678		-AT+RX1DL                : Receive Delay1
679	679
680		-AT+RX2DL                : Receive Delay2
	1109	+**Sub-Band**: value 0x00 ~~ 0x08
681	681
682		-AT+RX2DR               : Rx2 Window Data Rate
683	683
684		-AT+RX2FQ               : Rx2 Window Frequency
	1112	+**Firmware Version**: 0x0100, Means: v1.0.0 version
685	685
686		-AT+TXP           : Transmit Power
687	687
	1115	+**Sensor Type**:
688	688
689		-(% style="color:#037691" %)** Information :**
	1117	+0x01: LSE01
690	690
691		-AT+RSSI           : RSSI of the Last Received Packet
	1119	+0x02: LDDS75
692	692
693		-AT+SNR           : SNR of the Last Received Packet
	1121	+0x03: LDDS20
694	694
695		-AT+VER           : Image Version and Frequency Band
	1123	+0x04: LLMS01
696	696
697		-AT+FDR           : Factory Data Reset
	1125	+0x05: LSPH01
698	698
699		-AT+PORT                  : Application Port
	1127	+0x06: LSNPK01
700	700
701		-AT+CHS           : Get or Set Frequency (Unit: Hz) for Single Channel Mode
	1129	+0x07: LLDS12
702	702
703		- AT+CHE                   : Get or Set eight channels mode, Only for US915, AU915, CN470
704	704
705	705
	1133	+= 5.  Battery & How to replace =
706	706
707		-== 3.2  Set Transmit Interval Time ==
	1135	+== 5.1  Battery Type ==
708	708
709		-Feature: Change LoRaWAN End Node Transmit Interval.
	1137	+(((
	1138	+LLDS12 is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]. The battery is un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter.
	1139	+)))
710	710
711		-(% style="color:#037691" %)**AT Command: AT+TDC**
	1141	+(((
	1142	+The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
	1143	+)))
712	712
713		-[[image:image-20220610173409-7.png]]
	1145	+[[image:1654593587246-335.png]]
714	714
715	715
	1148	+Minimum Working Voltage for the LLDS12:
	1149	+
	1150	+LLDS12:  2.45v ~~ 3.6v
	1151	+
	1152	+
	1153	+
	1154	+== 5.2  Replace Battery ==
	1155	+
716	716	(((
717		-(% style="color:#037691" %)**Downlink Command: 0x01**
	1157	+Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
718	718	)))
719	719
720	720	(((
	1161	+And make sure the positive and negative pins match.
	1162	+)))
	1163	+
	1164	+
	1165	+
	1166	+== 5.3  Power Consumption Analyze ==
	1167	+
721	721	(((
722		-Format: Command Code (0x01) followed by 3 bytes time value.
	1169	+Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
	1170	+)))
723	723
724	724	(((
725		-If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1173	+Instruction to use as below:
726	726	)))
727	727
728		-* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
729		-* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1176	+
	1177	+**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
	1178	+
	1179	+[[https:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
	1180	+
	1181	+
	1182	+**Step 2**: Open it and choose
	1183	+
	1184	+* Product Model
	1185	+* Uplink Interval
	1186	+* Working Mode
	1187	+
	1188	+And the Life expectation in difference case will be shown on the right.
	1189	+
	1190	+[[image:1654593605679-189.png]]
	1191	+
	1192	+
	1193	+The battery related documents as below:
	1194	+
	1195	+* (((
	1196	+[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
730	730	)))
	1198	+* (((
	1199	+[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
731	731	)))
	1201	+* (((
	1202	+[[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]]
	1203	+)))
732	732
	1205	+[[image:image-20220607172042-11.png]]
733	733
734	734
735	735
	1209	+=== 5.3.1  ​Battery Note ===
736	736
737		-== 3.3  Set Interrupt Mode ==
	1211	+(((
	1212	+The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
	1213	+)))
738	738
739		-Feature, Set Interrupt mode for GPIO_EXIT.
740	740
741		-(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
742	742
743		-[[image:image-20220610174917-9.png]]
	1217	+=== ​5.3.2  Replace the battery ===
744	744
	1219	+(((
	1220	+You can change the battery in the LLDS12.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board.
	1221	+)))
745	745
746		-(% style="color:#037691" %)**Downlink Command: 0x06**
	1223	+(((
	1224	+The default battery pack of LLDS12 includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
	1225	+)))
747	747
748		-Format: Command Code (0x06) followed by 3 bytes.
749	749
	1228	+
	1229	+= 6.  Use AT Command =
	1230	+
	1231	+== 6.1  Access AT Commands ==
	1232	+
	1233	+LLDS12 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LLDS12 for using AT command, as below.
	1234	+
	1235	+[[image:1654593668970-604.png]]
	1236	+
	1237	+**Connection:**
	1238	+
	1239	+(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
	1240	+
	1241	+(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
	1242	+
	1243	+(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
	1244	+
	1245	+
750	750	(((
751		-This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1247	+(((
	1248	+In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
752	752	)))
753	753
754		-* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
755		-* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	1251	+(((
	1252	+LLDS12 will output system info once power on as below:
	1253	+)))
	1254	+)))
756	756
757		-= 4.  FAQ =
758	758
759		-== 4.1  What is the frequency plan for LDDS75? ==
	1257	+ [[image:1654593712276-618.png]]
760	760
761		-LDDS75 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"]]
	1259	+Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
762	762
763	763
	1262	+= 7.  FAQ =
764	764
765		-== 4.2  How to change the LoRa Frequency Bands/Region ==
	1264	+== 7.1  How to change the LoRa Frequency Bands/Region ==
766	766
767	767	You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
768	768	When downloading the images, choose the required image file for download. ​
769	769
770	770
	1270	+= 8.  Trouble Shooting =
771	771
772		-== 4.3  Can I use LDDS75 in condensation environment? ==
	1272	+== 8.1  AT Commands input doesn’t work ==
773	773
774		-LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
775	775
	1275	+(((
	1276	+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.
	1277	+)))
776	776
777	777
778		-= 5.  Trouble Shooting =
	1280	+== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
779	779
780		-== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
781	781
782		-It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	1283	+(((
	1284	+(% style="color:blue" %)**Cause ①**(%%)**：**Due to the physical principles of The LiDAR probe, the above phenomenon is likely to occur if the detection object is the material with high reflectivity (such as mirror, smooth floor tile, etc.) or transparent substance (such as glass and water, etc.)
	1285	+)))
783	783
	1287	+(((
	1288	+Troubleshooting: Please avoid use of this product under such circumstance in practice.
	1289	+)))
784	784
785		-== 5.2  AT Command input doesn't work ==
786		-
787		-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.
788		-
789	789	(((
790	790
791	791	)))
792	792
	1295	+(((
	1296	+(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
	1297	+)))
793	793
794		-= 6.  Order Info =
	1299	+(((
	1300	+Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
	1301	+)))
795	795
796	796
797		-Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
798	798
	1305	+= 9.  Order Info =
799	799
800		-(% style="color:blue" %)**XX**(%%)**: **The default frequency band
801	801
802		-* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
803		-* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
804		-* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
805		-* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
806		-* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
807		-* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
808		-* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
809		-* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
	1308	+Part Number: (% style="color:blue" %)**LLDS12-XX**
810	810
811		-(% style="color:blue" %)**YY**(%%): Battery Option
812	812
813		-* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
814		-* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
	1311	+(% style="color:blue" %)**XX**(%%): The default frequency band
815	815
816		-= 7. ​ Packing Info =
	1313	+* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
	1314	+* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
	1315	+* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
	1316	+* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
	1317	+* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
	1318	+* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
	1319	+* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
	1320	+* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
817	817
	1322	+= 10. ​ Packing Info =
818	818
	1324	+
819	819	**Package Includes**:
820	820
821		-* LDDS75 LoRaWAN Distance Detection Sensor x 1
	1327	+* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
822	822
823	823	**Dimension and weight**:
824	824
...	...	@@ -827,7 +827,7 @@
827	827	* Package Size / pcs : cm
828	828	* Weight / pcs : g
829	829
830		-= 8.  ​Support =
	1336	+= 11.  ​Support =
831	831
832	832	* 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.
833	833	* 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]].

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