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.
	544	+Default use CHE=2
	545	+
	546	+(% style="color:blue" %)**Uplink:**
	547	+
	548	+916.8 - SF7BW125 to SF12BW125
	549	+
	550	+917.0 - SF7BW125 to SF12BW125
	551	+
	552	+917.2 - SF7BW125 to SF12BW125
	553	+
	554	+917.4 - SF7BW125 to SF12BW125
	555	+
	556	+917.6 - SF7BW125 to SF12BW125
	557	+
	558	+917.8 - SF7BW125 to SF12BW125
	559	+
	560	+918.0 - SF7BW125 to SF12BW125
	561	+
	562	+918.2 - SF7BW125 to SF12BW125
	563	+
	564	+
	565	+(% style="color:blue" %)**Downlink:**
	566	+
	567	+923.3 - SF7BW500 to SF12BW500
	568	+
	569	+923.9 - SF7BW500 to SF12BW500
	570	+
	571	+924.5 - SF7BW500 to SF12BW500
	572	+
	573	+925.1 - SF7BW500 to SF12BW500
	574	+
	575	+925.7 - SF7BW500 to SF12BW500
	576	+
	577	+926.3 - SF7BW500 to SF12BW500
	578	+
	579	+926.9 - SF7BW500 to SF12BW500
	580	+
	581	+927.5 - SF7BW500 to SF12BW500
	582	+
	583	+923.3 - SF12BW500(RX2 downlink only)
	584	+
	585	+
	586	+
356	356	)))
357	357
	589	+=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
	590	+
358	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.**
	592	+(% style="color:blue" %)**Default Uplink channel:**
360	360	)))
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.
	595	+(((
	596	+923.2 - SF7BW125 to SF10BW125
	597	+)))
364	364
	599	+(((
	600	+923.4 - SF7BW125 to SF10BW125
	601	+)))
365	365
	603	+(((
	604	+
	605	+)))
366	366
367		-=== 2.3.3  Interrupt Pin ===
	607	+(((
	608	+(% style="color:blue" %)**Additional Uplink Channel**:
	609	+)))
368	368
369		-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.
	611	+(((
	612	+(OTAA mode, channel added by JoinAccept message)
	613	+)))
370	370
371		-**Example:**
	615	+(((
	616	+
	617	+)))
372	372
373		-0x00: Normal uplink packet.
	619	+(((
	620	+(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
	621	+)))
374	374
375		-0x01: Interrupt Uplink Packet.
	623	+(((
	624	+922.2 - SF7BW125 to SF10BW125
	625	+)))
376	376
	627	+(((
	628	+922.4 - SF7BW125 to SF10BW125
	629	+)))
377	377
	631	+(((
	632	+922.6 - SF7BW125 to SF10BW125
	633	+)))
378	378
379		-=== 2.3.4  DS18B20 Temperature sensor ===
	635	+(((
	636	+922.8 - SF7BW125 to SF10BW125
	637	+)))
380	380
381		-This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
	639	+(((
	640	+923.0 - SF7BW125 to SF10BW125
	641	+)))
382	382
383		-**Example**:
	643	+(((
	644	+922.0 - SF7BW125 to SF10BW125
	645	+)))
384	384
385		-If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
	647	+(((
	648	+
	649	+)))
386	386
387		-If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	651	+(((
	652	+(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
	653	+)))
388	388
389		-(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
	655	+(((
	656	+923.6 - SF7BW125 to SF10BW125
	657	+)))
390	390
	659	+(((
	660	+923.8 - SF7BW125 to SF10BW125
	661	+)))
391	391
	663	+(((
	664	+924.0 - SF7BW125 to SF10BW125
	665	+)))
392	392
393		-=== 2.3.5  Sensor Flag ===
	667	+(((
	668	+924.2 - SF7BW125 to SF10BW125
	669	+)))
394	394
395	395	(((
396		-0x01: Detect Ultrasonic Sensor
	672	+924.4 - SF7BW125 to SF10BW125
397	397	)))
398	398
399	399	(((
400		-0x00: No Ultrasonic Sensor
	676	+924.6 - SF7BW125 to SF10BW125
401	401	)))
402	402
	679	+(((
	680	+
	681	+)))
403	403
	683	+(((
	684	+(% style="color:blue" %)**Downlink:**
	685	+)))
404	404
405		-=== 2.3.6  Decode payload in The Things Network ===
	687	+(((
	688	+Uplink channels 1-8 (RX1)
	689	+)))
406	406
407		-While using TTN network, you can add the payload format to decode the payload.
	691	+(((
	692	+923.2 - SF10BW125 (RX2)
	693	+)))
408	408
409	409
410		-[[image:1654850829385-439.png]]
411	411
412		-The payload decoder function for TTN V3 is here:
	697	+=== 2.6.6  KR920-923 (KR920) ===
413	413
414	414	(((
415		-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/]]
	700	+(% style="color:blue" %)**Default channel:**
416	416	)))
417	417
	703	+(((
	704	+922.1 - SF7BW125 to SF12BW125
	705	+)))
418	418
	707	+(((
	708	+922.3 - SF7BW125 to SF12BW125
	709	+)))
419	419
420		-== 2.4  Downlink Payload ==
	711	+(((
	712	+922.5 - SF7BW125 to SF12BW125
	713	+)))
421	421
422		-By default, LDDS20 prints the downlink payload to console port.
	715	+(((
	716	+
	717	+)))
423	423
424		-[[image:image-20220615100930-15.png]]
	719	+(((
	720	+(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
	721	+)))
425	425
	723	+(((
	724	+922.1 - SF7BW125 to SF12BW125
	725	+)))
426	426
427		-**Examples:**
	727	+(((
	728	+922.3 - SF7BW125 to SF12BW125
	729	+)))
428	428
	731	+(((
	732	+922.5 - SF7BW125 to SF12BW125
	733	+)))
429	429
430		-* (% style="color:blue" %)**Set TDC**
	735	+(((
	736	+922.7 - SF7BW125 to SF12BW125
	737	+)))
431	431
432		-If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
	739	+(((
	740	+922.9 - SF7BW125 to SF12BW125
	741	+)))
433	433
434		-Payload:    01 00 00 1E    TDC=30S
	743	+(((
	744	+923.1 - SF7BW125 to SF12BW125
	745	+)))
435	435
436		-Payload:    01 00 00 3C    TDC=60S
	747	+(((
	748	+923.3 - SF7BW125 to SF12BW125
	749	+)))
437	437
	751	+(((
	752	+
	753	+)))
438	438
439		-* (% style="color:blue" %)**Reset**
	755	+(((
	756	+(% style="color:blue" %)**Downlink:**
	757	+)))
440	440
441		-If payload = 0x04FF, it will reset the LDDS20
	759	+(((
	760	+Uplink channels 1-7(RX1)
	761	+)))
442	442
	763	+(((
	764	+921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
	765	+)))
443	443
444		-* (% style="color:blue" %)**CFM**
445	445
446		-Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
447	447
	769	+=== 2.6.7  IN865-867 (IN865) ===
448	448
	771	+(((
	772	+(% style="color:blue" %)**Uplink:**
	773	+)))
449	449
450		-== 2.5  ​Show Data in DataCake IoT Server ==
	775	+(((
	776	+865.0625 - SF7BW125 to SF12BW125
	777	+)))
451	451
452	452	(((
453		-[[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:
	780	+865.4025 - SF7BW125 to SF12BW125
454	454	)))
455	455
456	456	(((
	784	+865.9850 - SF7BW125 to SF12BW125
	785	+)))
	786	+
	787	+(((
457	457
458	458	)))
459	459
460	460	(((
461		-(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
	792	+(% style="color:blue" %)**Downlink:**
462	462	)))
463	463
464	464	(((
465		-(% 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:**
	796	+Uplink channels 1-3 (RX1)
466	466	)))
467	467
	799	+(((
	800	+866.550 - SF10BW125 (RX2)
	801	+)))
468	468
469		-[[image:1654592790040-760.png]]
470	470
471	471
472		-[[image:1654592800389-571.png]]
	805	+== 2.7  LED Indicator ==
473	473
	807	+The LLDS12 has an internal LED which is to show the status of different state.
474	474
475		-(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
	809	+* The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
	810	+* Blink once when device transmit a packet.
476	476
477		-(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
	812	+== 2.8  ​Firmware Change Log ==
478	478
479		-[[image:1654851029373-510.png]]
480	480
	815	+**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/]]
481	481
482		-After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
483	483
484		-[[image:image-20220610165129-11.png||height="595" width="1088"]]
	818	+**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
485	485
486	486
487	487
488		-== 2.6  LED Indicator ==
	822	+= 3.  LiDAR ToF Measurement =
489	489
490		-The LDDS20 has an internal LED which is to show the status of different state.
	824	+== 3.1 Principle of Distance Measurement ==
491	491
	826	+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.
492	492
493		-* Blink once when device power on.
494		-* The device detects the sensor and flashes 5 times.
495		-* Solid ON for 5 seconds once device successful Join the network.
496		-* Blink once when device transmit a packet.
	828	+[[image:1654831757579-263.png]]
497	497
498	498
499	499
500		-== 2.7  ​Firmware Change Log ==
	832	+== 3.2 Distance Measurement Characteristics ==
501	501
	834	+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:
502	502
	836	+[[image:1654831774373-275.png]]
	837	+
	838	+
503	503	(((
504		-**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/]]
	840	+(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
505	505	)))
506	506
507	507	(((
508		-
	844	+(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
509	509	)))
510	510
511	511	(((
512		-**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
	848	+(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
513	513	)))
514	514
515	515
	852	+(((
	853	+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:
	854	+)))
516	516
517		-== 2.8  Battery Analysis ==
518	518
	857	+[[image:1654831797521-720.png]]
519	519
520	520
	860	+(((
	861	+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.
	862	+)))
521	521
522		-=== 2.8.1  Battery Type ===
	864	+[[image:1654831810009-716.png]]
523	523
524		-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.
525	525
	867	+(((
	868	+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.
	869	+)))
526	526
527		-The battery related documents as below:
528	528
	872	+
	873	+== 3.3 Notice of usage: ==
	874	+
	875	+Possible invalid /wrong reading for LiDAR ToF tech:
	876	+
	877	+* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
	878	+* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
	879	+* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
	880	+* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
	881	+
	882	+= 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
	883	+
	884	+(((
	885	+(((
	886	+Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
	887	+)))
	888	+)))
	889	+
529	529	* (((
530		-[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
	891	+(((
	892	+AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
531	531	)))
	894	+)))
532	532	* (((
533		-[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
	896	+(((
	897	+LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
534	534	)))
	899	+)))
	900	+
	901	+(((
	902	+(((
	903	+
	904	+)))
	905	+
	906	+(((
	907	+There are two kinds of commands to configure LLDS12, they are:
	908	+)))
	909	+)))
	910	+
535	535	* (((
536		-[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	912	+(((
	913	+(% style="color:#4f81bd" %)** General Commands**.
537	537	)))
	915	+)))
538	538
539		- [[image:image-20220615102527-16.png]]
	917	+(((
	918	+(((
	919	+These commands are to configure:
	920	+)))
	921	+)))
540	540
	923	+* (((
	924	+(((
	925	+General system settings like: uplink interval.
	926	+)))
	927	+)))
	928	+* (((
	929	+(((
	930	+LoRaWAN protocol & radio related command.
	931	+)))
	932	+)))
541	541
	934	+(((
	935	+(((
	936	+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]]
	937	+)))
	938	+)))
542	542
543		-== 2.8.2  Battery Note ==
	940	+(((
	941	+(((
	942	+
	943	+)))
	944	+)))
544	544
545		-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.
	946	+* (((
	947	+(((
	948	+(% style="color:#4f81bd" %)** Commands special design for LLDS12**
	949	+)))
	950	+)))
546	546
	952	+(((
	953	+(((
	954	+These commands only valid for LLDS12, as below:
	955	+)))
	956	+)))
547	547
548	548
549		-=== 2.8.3  Replace the battery ===
550	550
	960	+== 4.1  Set Transmit Interval Time ==
	961	+
	962	+Feature: Change LoRaWAN End Node Transmit Interval.
	963	+
	964	+(% style="color:#037691" %)**AT Command: AT+TDC**
	965	+
	966	+[[image:image-20220607171554-8.png]]
	967	+
	968	+
551	551	(((
552		-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.
	970	+(% style="color:#037691" %)**Downlink Command: 0x01**
553	553	)))
554	554
555	555	(((
556		-
	974	+Format: Command Code (0x01) followed by 3 bytes time value.
557	557	)))
558	558
559	559	(((
560		-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)
	978	+If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
561	561	)))
562	562
	981	+* (((
	982	+Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	983	+)))
	984	+* (((
	985	+Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	986	+)))
563	563
	988	+== 4.2  Set Interrupt Mode ==
564	564
565		-== 2.8.4  Battery Life Analyze ==
	990	+Feature, Set Interrupt mode for GPIO_EXIT.
566	566
567		-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:
	992	+(% style="color:#037691" %)**AT Command: AT+INTMOD**
568	568
569		-[[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]]
	994	+[[image:image-20220610105806-2.png]]
570	570
571	571
	997	+(((
	998	+(% style="color:#037691" %)**Downlink Command: 0x06**
	999	+)))
572	572
573		-= 3.  Using the AT Commands =
	1001	+(((
	1002	+Format: Command Code (0x06) followed by 3 bytes.
	1003	+)))
574	574
575	575	(((
576		-(((
577		-
	1006	+This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
578	578	)))
	1008	+
	1009	+* (((
	1010	+Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
579	579	)))
	1012	+* (((
	1013	+Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	1014	+)))
580	580
581		-== 3.1  Access AT Commands ==
	1016	+== 4.3  Get Firmware Version Info ==
582	582
583		-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.
	1018	+Feature: use downlink to get firmware version.
584	584
	1020	+(% style="color:#037691" %)**Downlink Command: 0x26**
585	585
586		-[[image:image-20220610172924-4.png||height="483" width="988"]]
	1022	+[[image:image-20220607171917-10.png]]
587	587
	1024	+* Reply to the confirmation package: 26 01
	1025	+* Reply to non-confirmed packet: 26 00
588	588
589		-Or if you have below board, use below connection:
	1027	+Device will send an uplink after got this downlink command. With below payload:
590	590
	1029	+Configures info payload:
591	591
592		-[[image:image-20220610172924-5.png]]
	1031	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	1032	+|=(((
	1033	+**Size(bytes)**
	1034	+)))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1**
	1035	+|**Value**|Software Type|(((
	1036	+Frequency
593	593
	1038	+Band
	1039	+)))|Sub-band|(((
	1040	+Firmware
594	594
595		-(((
596		-In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS75. LDDS75 will output system info once power on as below:
	1042	+Version
	1043	+)))|Sensor Type|Reserve|(((
	1044	+[[Message Type>>||anchor="H2.3.7A0MessageType"]]
	1045	+Always 0x02
597	597	)))
598	598
	1048	+**Software Type**: Always 0x03 for LLDS12
599	599
600		- [[image:image-20220610172924-6.png||height="601" width="860"]]
601	601
	1051	+**Frequency Band**:
602	602
	1053	+*0x01: EU868
603	603
604		-== 3.2  Set Transmit Interval Time ==
	1055	+*0x02: US915
605	605
606		-Feature: Change LoRaWAN End Node Transmit Interval.
	1057	+*0x03: IN865
607	607
608		-(% style="color:#037691" %)**AT Command: AT+TDC**
	1059	+*0x04: AU915
609	609
610		-[[image:image-20220610173409-7.png]]
	1061	+*0x05: KZ865
611	611
	1063	+*0x06: RU864
612	612
	1065	+*0x07: AS923
	1066	+
	1067	+*0x08: AS923-1
	1068	+
	1069	+*0x09: AS923-2
	1070	+
	1071	+*0xa0: AS923-3
	1072	+
	1073	+
	1074	+**Sub-Band**: value 0x00 ~~ 0x08
	1075	+
	1076	+
	1077	+**Firmware Version**: 0x0100, Means: v1.0.0 version
	1078	+
	1079	+
	1080	+**Sensor Type**:
	1081	+
	1082	+0x01: LSE01
	1083	+
	1084	+0x02: LDDS75
	1085	+
	1086	+0x03: LDDS20
	1087	+
	1088	+0x04: LLMS01
	1089	+
	1090	+0x05: LSPH01
	1091	+
	1092	+0x06: LSNPK01
	1093	+
	1094	+0x07: LLDS12
	1095	+
	1096	+
	1097	+
	1098	+= 5.  Battery & How to replace =
	1099	+
	1100	+== 5.1  Battery Type ==
	1101	+
613	613	(((
614		-(% style="color:#037691" %)**Downlink Command: 0x01**
	1103	+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.
615	615	)))
616	616
617	617	(((
	1107	+The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
	1108	+)))
	1109	+
	1110	+[[image:1654593587246-335.png]]
	1111	+
	1112	+
	1113	+Minimum Working Voltage for the LLDS12:
	1114	+
	1115	+LLDS12:  2.45v ~~ 3.6v
	1116	+
	1117	+
	1118	+
	1119	+== 5.2  Replace Battery ==
	1120	+
618	618	(((
619		-Format: Command Code (0x01) followed by 3 bytes time value.
	1122	+Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
	1123	+)))
620	620
621	621	(((
622		-If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1126	+And make sure the positive and negative pins match.
623	623	)))
624	624
625		-* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
626		-* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1129	+
	1130	+
	1131	+== 5.3  Power Consumption Analyze ==
	1132	+
	1133	+(((
	1134	+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.
627	627	)))
	1136	+
	1137	+(((
	1138	+Instruction to use as below:
628	628	)))
629	629
630	630
	1142	+**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
631	631
	1144	+[[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/]]
632	632
633	633
634		-== 3.3  Set Interrupt Mode ==
	1147	+**Step 2**: Open it and choose
635	635
636		-Feature, Set Interrupt mode for GPIO_EXIT.
	1149	+* Product Model
	1150	+* Uplink Interval
	1151	+* Working Mode
637	637
638		-(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
	1153	+And the Life expectation in difference case will be shown on the right.
639	639
640		-[[image:image-20220610174917-9.png]]
	1155	+[[image:1654593605679-189.png]]
641	641
642	642
643		-(% style="color:#037691" %)**Downlink Command: 0x06**
	1158	+The battery related documents as below:
644	644
645		-Format: Command Code (0x06) followed by 3 bytes.
	1160	+* (((
	1161	+[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
	1162	+)))
	1163	+* (((
	1164	+[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
	1165	+)))
	1166	+* (((
	1167	+[[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]]
	1168	+)))
646	646
	1170	+[[image:image-20220607172042-11.png]]
	1171	+
	1172	+
	1173	+
	1174	+=== 5.3.1  ​Battery Note ===
	1175	+
647	647	(((
648		-This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1177	+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.
649	649	)))
650	650
651		-* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
652		-* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
653	653
654		-= 4.  FAQ =
655	655
656		-== 4.1  What is the frequency plan for LDDS75? ==
	1182	+=== ​5.3.2  Replace the battery ===
657	657
658		-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"]]
	1184	+(((
	1185	+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.
	1186	+)))
659	659
	1188	+(((
	1189	+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)
	1190	+)))
660	660
661	661
662		-== 4.2  How to change the LoRa Frequency Bands/Region ==
663	663
664		-You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
665		-When downloading the images, choose the required image file for download. ​
	1194	+= 6.  Use AT Command =
666	666
	1196	+== 6.1  Access AT Commands ==
667	667
	1198	+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.
668	668
669		-== 4.3  Can I use LDDS75 in condensation environment? ==
	1200	+[[image:1654593668970-604.png]]
670	670
671		-LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
	1202	+**Connection:**
672	672
	1204	+(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
673	673
	1206	+(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
674	674
675		-= 5.  Trouble Shooting =
	1208	+(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
676	676
677		-== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
678	678
679		-It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	1211	+(((
	1212	+(((
	1213	+In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
	1214	+)))
680	680
	1216	+(((
	1217	+LLDS12 will output system info once power on as below:
	1218	+)))
	1219	+)))
681	681
682		-== 5.2  AT Command input doesn't work ==
683	683
	1222	+ [[image:1654593712276-618.png]]
	1223	+
	1224	+Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
	1225	+
	1226	+
	1227	+= 7.  FAQ =
	1228	+
	1229	+== 7.1  How to change the LoRa Frequency Bands/Region ==
	1230	+
	1231	+You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
	1232	+When downloading the images, choose the required image file for download. ​
	1233	+
	1234	+
	1235	+= 8.  Trouble Shooting =
	1236	+
	1237	+== 8.1  AT Commands input doesn’t work ==
	1238	+
	1239	+
	1240	+(((
684	684	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.
	1242	+)))
685	685
	1244	+
	1245	+== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
	1246	+
	1247	+
686	686	(((
	1249	+(% 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.)
	1250	+)))
	1251	+
	1252	+(((
	1253	+Troubleshooting: Please avoid use of this product under such circumstance in practice.
	1254	+)))
	1255	+
	1256	+(((
687	687
688	688	)))
689	689
	1260	+(((
	1261	+(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
	1262	+)))
690	690
691		-= 6.  Order Info =
	1264	+(((
	1265	+Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
	1266	+)))
692	692
693	693
694		-Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
695	695
	1270	+= 9.  Order Info =
696	696
697		-(% style="color:blue" %)**XX**(%%)**: **The default frequency band
698	698
699		-* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
700		-* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
701		-* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
702		-* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
703		-* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
704		-* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
705		-* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
706		-* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
	1273	+Part Number: (% style="color:blue" %)**LLDS12-XX**
707	707
708		-(% style="color:blue" %)**YY**(%%): Battery Option
709	709
710		-* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
711		-* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
	1276	+(% style="color:blue" %)**XX**(%%): The default frequency band
712	712
713		-= 7. ​ Packing Info =
	1278	+* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
	1279	+* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
	1280	+* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
	1281	+* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
	1282	+* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
	1283	+* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
	1284	+* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
	1285	+* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
714	714
	1287	+= 10. ​ Packing Info =
715	715
	1289	+
716	716	**Package Includes**:
717	717
718		-* LDDS75 LoRaWAN Distance Detection Sensor x 1
	1292	+* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
719	719
720	720	**Dimension and weight**:
721	721
...	...	@@ -724,7 +724,7 @@
724	724	* Package Size / pcs : cm
725	725	* Weight / pcs : g
726	726
727		-= 8.  ​Support =
	1301	+= 11.  ​Support =
728	728
729	729	* 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.
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