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

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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	+== 1.3  Specification ==
	61	+
	62	+=== 1.3.1  Rated environmental conditions ===
	63	+
	64	+[[image:image-20220610154839-1.png]]
	65	+
	66	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
	67	+
	68	+**b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)**
	69	+
	70	+
	71	+
	72	+=== 1.3.2  Effective measurement range Reference beam pattern ===
	73	+
	74	+**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
	75	+
	76	+
	77	+
	78	+[[image:1654852253176-749.png]]
	79	+
	80	+
	81	+**(2)** **The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.**
	82	+
	83	+
	84	+[[image:1654852175653-550.png]](% style="display:none" %) ** **
	85	+
	86	+
	87	+
	88	+== 1.5 ​ Applications ==
	89	+
	90	+* Horizontal distance measurement
	91	+* Liquid level measurement
	92	+* Parking management system
	93	+* Object proximity and presence detection
	94	+* Intelligent trash can management system
	95	+* Robot obstacle avoidance
	96	+* Automatic control
	97	+* Sewer
	98	+* Bottom water level monitoring
	99	+
	100	+== 1.6  Pin mapping and power on ==
	101	+
	102	+
	103	+[[image:1654847583902-256.png]]
	104	+
	105	+
	106	+
	107	+= 2.  Configure LDDS75 to connect to LoRaWAN network =
	108	+
	109	+== 2.1  How it works ==
	110	+
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**.
	112	+The LDDS75 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
35	35	)))
36	36
37	37	(((
38		-
	116	+In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS75.
39	39	)))
40	40
	119	+
	120	+
	121	+== 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
	122	+
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.
	124	+Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LG308>>url:http://www.dragino.com/products/lora/item/140-lg308.html]] as a LoRaWAN gateway in this example.
43	43	)))
44	44
45	45	(((
46		-
	128	+[[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.
	132	+The LG308 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
51	51	)))
52	52
53	53	(((
54		-
	136	+(% 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*.
	140	+Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
59	59	)))
60	60
	143	+[[image:image-20220607170145-1.jpeg]]
	144	+
	145	+
	146	+For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
	147	+
	148	+Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
	149	+
	150	+**Add APP EUI in the application**
	151	+
	152	+[[image:image-20220610161353-4.png]]
	153	+
	154	+[[image:image-20220610161353-5.png]]
	155	+
	156	+[[image:image-20220610161353-6.png]]
	157	+
	158	+
	159	+[[image:image-20220610161353-7.png]]
	160	+
	161	+
	162	+You can also choose to create the device manually.
	163	+
	164	+ [[image:image-20220610161538-8.png]]
	165	+
	166	+
	167	+
	168	+**Add APP KEY and DEV EUI**
	169	+
	170	+[[image:image-20220610161538-9.png]]
	171	+
	172	+
	173	+
	174	+(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
	175	+
	176	+
	177	+Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
	178	+
	179	+[[image:image-20220610161724-10.png]]
	180	+
	181	+
61	61	(((
62		-
	183	+(% style="color:blue" %)**Step 3**(%%)**:** The LDDS75 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
63	63	)))
64	64
	186	+[[image:1654849068701-275.png]]
	187	+
	188	+
	189	+
	190	+== 2.3  ​Uplink Payload ==
	191	+
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.
	193	+LDDS75 will uplink payload via LoRaWAN with below payload format:
	194	+
	195	+Uplink payload includes in total 4 bytes.
	196	+Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
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		-)))
	203	+(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
	204	+|=(% style="width: 62.5px;" %)(((
	205	+**Size (bytes)**
	206	+)))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
	207	+|(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
	208	+[[Distance>>||anchor="H2.3.3A0Distance"]]
81	81
	210	+(unit: mm)
	211	+)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.4A0Distancesignalstrength"]]|(((
	212	+[[Temperature (Optional )>>||anchor="H2.3.5A0InterruptPin"]]
	213	+)))|[[Sensor Flag>>path:#Sensor_Flag]]
82	82
83		-[[image:1655255122126-327.png]]
	215	+[[image:1654850511545-399.png]]
84	84
85	85
86	86
87		-== ​1.2  Features ==
	219	+=== 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 ==
	222	+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.
	224	+Ex1: 0x0B45 = 2885mV
111	111
112		-== 1.4  Mechanical ==
	226	+Ex2: 0x0B49 = 2889mV
113	113
114		-[[image:image-20220615090910-1.png]]
115	115
116	116
117		-[[image:image-20220615090910-2.png]]
	230	+=== 2.3.2  Distance ===
118	118
	232	+Get the distance. Flat object range 280mm - 7500mm.
119	119
	234	+For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0B05(H) = 2821 (D) = 2821 mm.**
120	120
121		-== 1.5  Install LDDS20 ==
122	122
	237	+* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
	238	+* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
123	123
124		-(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
	240	+=== 2.3.3  Interrupt Pin ===
125	125
126		-LDDS20 (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
	242	+This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H4.2A0SetInterruptMode"]] for the hardware and software set up.
127	127
128		-[[image:image-20220615091045-3.png]]
	244	+**Example:**
129	129
	246	+0x00: Normal uplink packet.
130	130
	248	+0x01: Interrupt Uplink Packet.
131	131
132		-(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
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.
135	135
136		-[[image:image-20220615092010-11.png]]
	252	+=== 2.3.4  DS18B20 Temperature sensor ===
137	137
	254	+This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
138	138
139		-No polish needed if the container is shine metal surface without paint or non-metal container.
	256	+**Example**:
140	140
141		-[[image:image-20220615092044-12.png]]
	258	+If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
142	142
	260	+If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
143	143
	262	+(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
144	144
145		-(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
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.
148	148
	266	+=== 2.3.5  Sensor Flag ===
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.
	268	+0x01: Detect Ultrasonic Sensor
151	151
152		-[[image:1655256160324-178.png]][[image:image-20220615092327-13.png]]
	270	+0x00: No Ultrasonic Sensor
153	153
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.
	273	+===
	274	+(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
156	156
	276	+While using TTN network, you can add the payload format to decode the payload.
157	157
158		-(% style="color:red" %)**LED Status:**
159	159
160		-* Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
	279	+[[image:1654850829385-439.png]]
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.
	281	+The payload decoder function for TTN V3 is here:
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.
	283	+LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
166	166
167	167
168		-(% style="color:red" %)**Note 2:**
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.
	287	+== 2.4  Uplink Interval ==
171	171
	289	+The LDDS75 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]]
172	172
173	173
174		-(% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
175	175
176		-Prepare Eproxy AB glue.
	293	+== 2.5  ​Show Data in DataCake IoT Server ==
177	177
178		-Put Eproxy AB glue in the sensor and press it hard on the container installation point.
	295	+(((
	296	+[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
	297	+)))
179	179
180		-Reset LDDS20 and see if the BLUE LED is slowly blinking.
	299	+(((
	300	+
	301	+)))
181	181
182		-[[image:image-20220615091045-8.png||height="226" width="380"]] [[image:image-20220615091045-9.png||height="239" width="339"]]
	303	+(((
	304	+(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
	305	+)))
183	183
	307	+(((
	308	+(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
	309	+)))
184	184
185		-(% style="color:red" %)**Note 1:**
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.
	312	+[[image:1654592790040-760.png]]
188	188
189	189
190		-(% style="color:red" %)**Note 2:**
	315	+[[image:1654592800389-571.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
	318	+(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
194	194
	320	+(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
195	195
196		-== 1.6 ​ Applications ==
	322	+[[image:1654851029373-510.png]]
197	197
198		-* Smart liquid control solution.
199		-* Smart liquefied gas solution.
200	200
201		-== 1.7  Precautions ==
	325	+After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
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.
	327	+[[image:image-20220610165129-11.png||height="595" width="1088"]]
206	206
207		-== 1.8  Pin mapping and power on ==
208	208
209	209
210		-[[image:1655257026882-201.png]]
	331	+== 2.6  Frequency Plans ==
211	211
	333	+(((
	334	+The LDDS75 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
	335	+)))
212	212
213	213
214		-= 2.  Configure LDDS20 to connect to LoRaWAN network =
215	215
	339	+=== 2.6.1  EU863-870 (EU868) ===
216	216
217		-== 2.1  How it works ==
	341	+(((
	342	+(% style="color:blue" %)**Uplink:**
	343	+)))
218	218
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.
	346	+868.1 - SF7BW125 to SF12BW125
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.
	350	+868.3 - SF7BW125 to SF12BW125 and SF7BW250
225	225	)))
226	226
	353	+(((
	354	+868.5 - SF7BW125 to SF12BW125
	355	+)))
227	227
	357	+(((
	358	+867.1 - SF7BW125 to SF12BW125
	359	+)))
228	228
229		-== 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
	361	+(((
	362	+867.3 - SF7BW125 to SF12BW125
	363	+)))
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.
	366	+867.5 - SF7BW125 to SF12BW125
233	233	)))
234	234
235	235	(((
236		-[[image:1655257698953-697.png]]
	370	+867.7 - 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.
	374	+867.9 - SF7BW125 to SF12BW125
241	241	)))
242	242
243	243	(((
244		-
	378	+868.8 - FSK
	379	+)))
245	245
246		-(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS20.
	381	+(((
	382	+
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.
	386	+(% style="color:blue" %)**Downlink:**
251	251	)))
252	252
253		-[[image:image-20220607170145-1.jpeg]]
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.
	390	+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:
	394	+869.525 - SF9BW125 (RX2 downlink only)
262	262	)))
263	263
	397	+
	398	+
	399	+=== 2.6.2  US902-928(US915) ===
	400	+
264	264	(((
265		-
	402	+Used in USA, Canada and South America. Default use CHE=2
266	266
267		-**Add APP EUI in the application**
268		-)))
	404	+(% style="color:blue" %)**Uplink:**
269	269
270		-[[image:image-20220610161353-4.png]]
	406	+903.9 - SF7BW125 to SF10BW125
271	271
272		-[[image:image-20220610161353-5.png]]
	408	+904.1 - SF7BW125 to SF10BW125
273	273
274		-[[image:image-20220610161353-6.png]]
	410	+904.3 - SF7BW125 to SF10BW125
275	275
	412	+904.5 - SF7BW125 to SF10BW125
276	276
277		-[[image:image-20220610161353-7.png]]
	414	+904.7 - SF7BW125 to SF10BW125
278	278
	416	+904.9 - SF7BW125 to SF10BW125
279	279
	418	+905.1 - SF7BW125 to SF10BW125
280	280
281		-You can also choose to create the device manually.
	420	+905.3 - SF7BW125 to SF10BW125
282	282
283		- [[image:image-20220610161538-8.png]]
284	284
	423	+(% style="color:blue" %)**Downlink:**
285	285
	425	+923.3 - SF7BW500 to SF12BW500
286	286
287		-**Add APP KEY and DEV EUI**
	427	+923.9 - SF7BW500 to SF12BW500
288	288
289		-[[image:image-20220610161538-9.png]]
	429	+924.5 - SF7BW500 to SF12BW500
290	290
	431	+925.1 - SF7BW500 to SF12BW500
291	291
	433	+925.7 - SF7BW500 to SF12BW500
292	292
293		-(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
	435	+926.3 - SF7BW500 to SF12BW500
294	294
	437	+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).
	439	+927.5 - SF7BW500 to SF12BW500
297	297
298		-[[image:image-20220615095102-14.png]]
	441	+923.3 - SF12BW500(RX2 downlink only)
299	299
300	300
	444	+
	445	+)))
301	301
	447	+=== 2.6.3  CN470-510 (CN470) ===
	448	+
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.
	450	+Used in China, Default use CHE=1
304	304	)))
305	305
306		-[[image:1654849068701-275.png]]
	453	+(((
	454	+(% style="color:blue" %)**Uplink:**
	455	+)))
307	307
	457	+(((
	458	+486.3 - SF7BW125 to SF12BW125
	459	+)))
308	308
	461	+(((
	462	+486.5 - SF7BW125 to SF12BW125
	463	+)))
309	309
310		-== 2.3  ​Uplink Payload ==
	465	+(((
	466	+486.7 - SF7BW125 to SF12BW125
	467	+)))
311	311
312	312	(((
	470	+486.9 - SF7BW125 to SF12BW125
	471	+)))
	472	+
313	313	(((
314		-LDDS20 will uplink payload via LoRaWAN with below payload format:
	474	+487.1 - SF7BW125 to SF12BW125
	475	+)))
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).
	477	+(((
	478	+487.3 - SF7BW125 to SF12BW125
318	318	)))
	480	+
	481	+(((
	482	+487.5 - SF7BW125 to SF12BW125
319	319	)))
320	320
321	321	(((
	486	+487.7 - SF7BW125 to SF12BW125
	487	+)))
	488	+
	489	+(((
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"]]
	493	+(((
	494	+(% style="color:blue" %)**Downlink:**
	495	+)))
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"]]
	497	+(((
	498	+506.7 - SF7BW125 to SF12BW125
	499	+)))
336	336
337		-[[image:1654850511545-399.png]]
	501	+(((
	502	+506.9 - SF7BW125 to SF12BW125
	503	+)))
338	338
	505	+(((
	506	+507.1 - SF7BW125 to SF12BW125
	507	+)))
339	339
	509	+(((
	510	+507.3 - SF7BW125 to SF12BW125
	511	+)))
340	340
341		-=== 2.3.1  Battery Info ===
	513	+(((
	514	+507.5 - SF7BW125 to SF12BW125
	515	+)))
342	342
	517	+(((
	518	+507.7 - SF7BW125 to SF12BW125
	519	+)))
343	343
344		-Check the battery voltage for LDDS20.
	521	+(((
	522	+507.9 - SF7BW125 to SF12BW125
	523	+)))
345	345
346		-Ex1: 0x0B45 = 2885mV
	525	+(((
	526	+508.1 - SF7BW125 to SF12BW125
	527	+)))
347	347
348		-Ex2: 0x0B49 = 2889mV
	529	+(((
	530	+505.3 - SF12BW125 (RX2 downlink only)
	531	+)))
349	349
350	350
351	351
352		-=== 2.3.2  Distance ===
	535	+=== 2.6.4  AU915-928(AU915) ===
353	353
354	354	(((
355		-Get the distance. Flat object range 20mm - 2000mm.
356		-)))
	538	+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		-)))
	540	+(% 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.
	542	+916.8 - SF7BW125 to SF12BW125
364	364
	544	+917.0 - SF7BW125 to SF12BW125
365	365
	546	+917.2 - SF7BW125 to SF12BW125
366	366
367		-=== 2.3.3  Interrupt Pin ===
	548	+917.4 - SF7BW125 to SF12BW125
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.
	550	+917.6 - SF7BW125 to SF12BW125
370	370
371		-**Example:**
	552	+917.8 - SF7BW125 to SF12BW125
372	372
373		-0x00: Normal uplink packet.
	554	+918.0 - SF7BW125 to SF12BW125
374	374
375		-0x01: Interrupt Uplink Packet.
	556	+918.2 - SF7BW125 to SF12BW125
376	376
377	377
	559	+(% style="color:blue" %)**Downlink:**
378	378
379		-=== 2.3.4  DS18B20 Temperature sensor ===
	561	+923.3 - SF7BW500 to SF12BW500
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.
	563	+923.9 - SF7BW500 to SF12BW500
382	382
383		-**Example**:
	565	+924.5 - SF7BW500 to SF12BW500
384	384
385		-If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
	567	+925.1 - SF7BW500 to SF12BW500
386	386
387		-If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	569	+925.7 - SF7BW500 to SF12BW500
388	388
389		-(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
	571	+926.3 - SF7BW500 to SF12BW500
390	390
	573	+926.9 - SF7BW500 to SF12BW500
391	391
	575	+927.5 - SF7BW500 to SF12BW500
392	392
393		-=== 2.3.5  Sensor Flag ===
	577	+923.3 - SF12BW500(RX2 downlink only)
394	394
	579	+
	580	+
	581	+)))
	582	+
	583	+=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
	584	+
395	395	(((
396		-0x01: Detect Ultrasonic Sensor
	586	+(% style="color:blue" %)**Default Uplink channel:**
397	397	)))
398	398
399	399	(((
400		-0x00: No Ultrasonic Sensor
	590	+923.2 - SF7BW125 to SF10BW125
401	401	)))
402	402
	593	+(((
	594	+923.4 - SF7BW125 to SF10BW125
	595	+)))
403	403
	597	+(((
	598	+
	599	+)))
404	404
405		-=== 2.3.6  Decode payload in The Things Network ===
	601	+(((
	602	+(% style="color:blue" %)**Additional Uplink Channel**:
	603	+)))
406	406
407		-While using TTN network, you can add the payload format to decode the payload.
	605	+(((
	606	+(OTAA mode, channel added by JoinAccept message)
	607	+)))
408	408
	609	+(((
	610	+
	611	+)))
409	409
410		-[[image:1654850829385-439.png]]
	613	+(((
	614	+(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
	615	+)))
411	411
412		-The payload decoder function for TTN V3 is here:
	617	+(((
	618	+922.2 - SF7BW125 to SF10BW125
	619	+)))
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/]]
	622	+922.4 - SF7BW125 to SF10BW125
416	416	)))
417	417
	625	+(((
	626	+922.6 - SF7BW125 to SF10BW125
	627	+)))
418	418
	629	+(((
	630	+922.8 - SF7BW125 to SF10BW125
	631	+)))
419	419
420		-== 2.4  Downlink Payload ==
	633	+(((
	634	+923.0 - SF7BW125 to SF10BW125
	635	+)))
421	421
422		-By default, LDDS20 prints the downlink payload to console port.
	637	+(((
	638	+922.0 - SF7BW125 to SF10BW125
	639	+)))
423	423
424		-[[image:image-20220615100930-15.png]]
	641	+(((
	642	+
	643	+)))
425	425
	645	+(((
	646	+(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
	647	+)))
426	426
427		-**Examples:**
	649	+(((
	650	+923.6 - SF7BW125 to SF10BW125
	651	+)))
428	428
	653	+(((
	654	+923.8 - SF7BW125 to SF10BW125
	655	+)))
429	429
430		-* (% style="color:blue" %)**Set TDC**
	657	+(((
	658	+924.0 - SF7BW125 to SF10BW125
	659	+)))
431	431
432		-If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
	661	+(((
	662	+924.2 - SF7BW125 to SF10BW125
	663	+)))
433	433
434		-Payload:    01 00 00 1E    TDC=30S
	665	+(((
	666	+924.4 - SF7BW125 to SF10BW125
	667	+)))
435	435
436		-Payload:    01 00 00 3C    TDC=60S
	669	+(((
	670	+924.6 - SF7BW125 to SF10BW125
	671	+)))
437	437
	673	+(((
	674	+
	675	+)))
438	438
439		-* (% style="color:blue" %)**Reset**
	677	+(((
	678	+(% style="color:blue" %)**Downlink:**
	679	+)))
440	440
441		-If payload = 0x04FF, it will reset the LDDS20
	681	+(((
	682	+Uplink channels 1-8 (RX1)
	683	+)))
442	442
	685	+(((
	686	+923.2 - SF10BW125 (RX2)
	687	+)))
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
	691	+=== 2.6.6  KR920-923 (KR920) ===
448	448
	693	+(((
	694	+(% style="color:blue" %)**Default channel:**
	695	+)))
449	449
450		-== 2.5  ​Show Data in DataCake IoT Server ==
	697	+(((
	698	+922.1 - SF7BW125 to SF12BW125
	699	+)))
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:
	702	+922.3 - SF7BW125 to SF12BW125
454	454	)))
455	455
456	456	(((
	706	+922.5 - SF7BW125 to SF12BW125
	707	+)))
	708	+
	709	+(((
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.**
	714	+(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
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:**
	718	+922.1 - SF7BW125 to SF12BW125
466	466	)))
467	467
	721	+(((
	722	+922.3 - SF7BW125 to SF12BW125
	723	+)))
468	468
469		-[[image:1654592790040-760.png]]
	725	+(((
	726	+922.5 - SF7BW125 to SF12BW125
	727	+)))
470	470
	729	+(((
	730	+922.7 - SF7BW125 to SF12BW125
	731	+)))
471	471
472		-[[image:1654592800389-571.png]]
	733	+(((
	734	+922.9 - SF7BW125 to SF12BW125
	735	+)))
473	473
	737	+(((
	738	+923.1 - SF7BW125 to SF12BW125
	739	+)))
474	474
475		-(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
	741	+(((
	742	+923.3 - SF7BW125 to SF12BW125
	743	+)))
476	476
477		-(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
	745	+(((
	746	+
	747	+)))
478	478
479		-[[image:1654851029373-510.png]]
	749	+(((
	750	+(% style="color:blue" %)**Downlink:**
	751	+)))
480	480
	753	+(((
	754	+Uplink channels 1-7(RX1)
	755	+)))
481	481
482		-After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
	757	+(((
	758	+921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
	759	+)))
483	483
484		-[[image:image-20220610165129-11.png||height="595" width="1088"]]
485	485
486	486
	763	+=== 2.6.7  IN865-867 (IN865) ===
487	487
488		-== 2.6  LED Indicator ==
	765	+(((
	766	+(% style="color:blue" %)**Uplink:**
	767	+)))
489	489
490		-The LDDS20 has an internal LED which is to show the status of different state.
	769	+(((
	770	+865.0625 - SF7BW125 to SF12BW125
	771	+)))
491	491
	773	+(((
	774	+865.4025 - SF7BW125 to SF12BW125
	775	+)))
492	492
	777	+(((
	778	+865.9850 - SF7BW125 to SF12BW125
	779	+)))
	780	+
	781	+(((
	782	+
	783	+)))
	784	+
	785	+(((
	786	+(% style="color:blue" %)**Downlink:**
	787	+)))
	788	+
	789	+(((
	790	+Uplink channels 1-3 (RX1)
	791	+)))
	792	+
	793	+(((
	794	+866.550 - SF10BW125 (RX2)
	795	+)))
	796	+
	797	+
	798	+
	799	+== 2.7  LED Indicator ==
	800	+
	801	+The LDDS75 has an internal LED which is to show the status of different state.
	802	+
	803	+
493	493	* Blink once when device power on.
494	494	* The device detects the sensor and flashes 5 times.
495	495	* Solid ON for 5 seconds once device successful Join the network.
496	496	* Blink once when device transmit a packet.
497	497
	809	+== 2.8  ​Firmware Change Log ==
498	498
499	499
500		-== 2.7  ​Firmware Change Log ==
	812	+**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
501	501
502	502
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/]]
505		-)))
	815	+**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
506	506
507		-(((
508		-
509		-)))
510	510
511		-(((
512		-**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
513		-)))
514	514
	819	+== 2.9  Mechanical ==
515	515
516	516
517		-== 2.8  Battery Analysis ==
	822	+[[image:image-20220610172003-1.png]]
518	518
	824	+[[image:image-20220610172003-2.png]]
519	519
520	520
	827	+== 2.10  Battery Analysis ==
521	521
522		-=== 2.8.1  Battery Type ===
	829	+=== 2.10.1  Battery Type ===
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.
	831	+The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
525	525
526	526
527	527	The battery related documents as below:
528	528
529	529	* (((
530		-[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/le=LSN50-Battery-Dimension.pdf]],
	837	+[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
531	531	)))
532	532	* (((
533		-[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
	840	+[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
534	534	)))
535	535	* (((
536		-[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	843	+[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
537	537	)))
538	538
539		- [[image:image-20220615102527-16.png]]
	846	+ [[image:image-20220610172400-3.png]]
540	540
541	541
542	542
543		-
544	544	=== 2.10.2  Replace the battery ===
545	545
546	546	(((
547		-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.
	853	+You can change the battery in the LDDS75.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board.
548	548	)))
549	549
550	550	(((
...	...	@@ -552,12 +552,12 @@
552	552	)))
553	553
554	554	(((
555		-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)
	861	+The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can’t find this pack locally, they can find ER18505 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
556	556	)))
557	557
558	558
559	559
560		-= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
	866	+= 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
561	561
562	562	(((
563	563	(((
...	...	@@ -567,7 +567,7 @@
567	567
568	568	* (((
569	569	(((
570		-AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
	876	+AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
571	571	)))
572	572	)))
573	573	* (((
...	...	@@ -648,9 +648,7 @@
648	648	[[image:image-20220610172924-5.png]]
649	649
650	650
651		-(((
652	652	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:
653		-)))
654	654
655	655
656	656	[[image:image-20220610172924-6.png||height="601" width="860"]]
...	...	@@ -674,19 +674,16 @@
674	674	(((
675	675	Format: Command Code (0x01) followed by 3 bytes time value.
676	676
677		-(((
678	678	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
679		-)))
680	680
681	681	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
682	682	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
683	683	)))
684		-)))
685	685
686	686
	988	+
	989	+)))
687	687
688		-
689		-
690	690	== 3.3  Set Interrupt Mode ==
691	691
692	692	Feature, Set Interrupt mode for GPIO_EXIT.
...	...	@@ -700,72 +700,79 @@
700	700
701	701	Format: Command Code (0x06) followed by 3 bytes.
702	702
703		-(((
704	704	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
705		-)))
706	706
707	707	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
708	708	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
709	709
710		-= 4.  FAQ =
711	711
712		-== 4.1  What is the frequency plan for LDDS75? ==
713	713
714		-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"]]
	1011	+= 4.  FAQ =
715	715
	1013	+== 4.1  How to change the LoRa Frequency Bands/Region ==
716	716
717		-
718		-== 4.2  How to change the LoRa Frequency Bands/Region ==
719		-
720	720	You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
721	721	When downloading the images, choose the required image file for download. ​
722	722
723	723
	1019	+= 5.  Trouble Shooting =
724	724
725		-== 4.3  Can I use LDDS75 in condensation environment? ==
	1021	+== 5.1  AT Commands input doesn’t work ==
726	726
727		-LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
728	728
	1024	+(((
	1025	+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.
	1026	+)))
729	729
730	730
731		-= 5.  Trouble Shooting =
	1029	+== 5.2  Significant error between the output distant value of LiDAR and actual distance ==
732	732
733		-== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
734	734
735		-It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	1032	+(((
	1033	+(% 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.)
	1034	+)))
736	736
	1036	+(((
	1037	+Troubleshooting: Please avoid use of this product under such circumstance in practice.
	1038	+)))
737	737
738		-== 5.2  AT Command input doesn't work ==
	1040	+(((
	1041	+
	1042	+)))
739	739
740		-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.
	1044	+(((
	1045	+(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
	1046	+)))
741	741
742	742	(((
743		-
	1049	+Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
744	744	)))
745	745
746	746
	1053	+
747	747	= 6.  Order Info =
748	748
749	749
750		-Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
	1057	+Part Number: (% style="color:blue" %)**LDDS75-XX-YY**
751	751
752	752
753		-(% style="color:blue" %)**XX**(%%)**: **The default frequency band
	1060	+(% style="color:blue" %)**XX**(%%): The default frequency band
754	754
755		-* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
756		-* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
757		-* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
758		-* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
759		-* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
760		-* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
761		-* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
762		-* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
	1062	+* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
	1063	+* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
	1064	+* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
	1065	+* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
	1066	+* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
	1067	+* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
	1068	+* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
	1069	+* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
763	763
764	764	(% style="color:blue" %)**YY**(%%): Battery Option
765	765
766		-* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
767		-* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
	1073	+* (% style="color:red" %)**4**(%%): 4000mAh battery
	1074	+* (% style="color:red" %)**8**(%%): 8500mAh battery
768	768
	1076	+
769	769	= 7. ​ Packing Info =
770	770
771	771
...	...	@@ -780,6 +780,7 @@
780	780	* Package Size / pcs : cm
781	781	* Weight / pcs : g
782	782
	1091	+
783	783	= 8.  ​Support =
784	784
785	785	* 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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