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

Summary

• Page properties (1 modified, 0 added, 0 removed)
• Attachments (0 modified, 0 added, 6 removed)
  • image-20220610172924-4.png
  • image-20220610172924-5.png
  • image-20220610172924-6.png
  • image-20220610173409-7.png
  • image-20220610174836-8.png
  • image-20220610174917-9.png

Details

Page properties

Content

...	...	@@ -3,7 +3,6 @@
3	3
4	4	**Contents:**
5	5
6		-{{toc/}}
7	7
8	8
9	9
...	...	@@ -11,7 +11,6 @@
11	11
12	12
13	13
14		-
15	15	= 1.  Introduction =
16	16
17	17	== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
...	...	@@ -20,51 +20,24 @@
20	20
21	21
22	22	(((
23		-(((
24	24	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.
25		-)))
26	26
27		-(((
28		-
29		-)))
30	30
31		-(((
32	32	It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
33		-)))
34	34
35		-(((
36		-
37		-)))
38	38
39		-(((
40	40	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.
41		-)))
42	42
43		-(((
44		-
45		-)))
46	46
47		-(((
48	48	LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
49		-)))
50	50
51		-(((
52		-
53		-)))
54	54
55		-(((
56	56	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.
57		-)))
58	58
59		-(((
60		-
61		-)))
62	62
63		-(((
64		-(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
	36	+(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors
65	65	)))
66	66	)))
67		-)))
68	68
69	69
70	70	[[image:1654847051249-359.png]]
...	...	@@ -87,6 +87,7 @@
87	87	* 4000mAh or 8500mAh Battery for long term use
88	88
89	89
	61	+
90	90	== 1.3  Specification ==
91	91
92	92	=== 1.3.1  Rated environmental conditions ===
...	...	@@ -93,12 +93,12 @@
93	93
94	94	[[image:image-20220610154839-1.png]]
95	95
96		-(((
97		-**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  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)**
98		-)))
	68	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
99	99
	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)**
100	100
101	101
	73	+
102	102	=== 1.3.2  Effective measurement range Reference beam pattern ===
103	103
104	104	**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
...	...	@@ -108,7 +108,6 @@
108	108	[[image:1654852253176-749.png]]
109	109
110	110
111		-
112	112	**(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.**
113	113
114	114
...	...	@@ -238,12 +238,12 @@
238	238	**Size (bytes)**
239	239	)))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
240	240	|(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
241		-[[Distance>>||anchor="H2.3.2A0Distance"]]
	212	+[[Distance>>||anchor="H2.3.3A0Distance"]]
242	242
243	243	(unit: mm)
244		-)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
245		-[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
246		-)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
	215	+)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.4A0Distancesignalstrength"]]|(((
	216	+[[Temperature (Optional )>>||anchor="H2.3.5A0InterruptPin"]]
	217	+)))|[[Sensor Flag>>path:#Sensor_Flag]]
247	247
248	248	[[image:1654850511545-399.png]]
249	249
...	...	@@ -270,9 +270,11 @@
270	270	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
271	271	* 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.
272	272
	244	+
	245	+
273	273	=== 2.3.3  Interrupt Pin ===
274	274
275		-This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3A0SetInterruptMode"]] for the hardware and software set up.
	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.
276	276
277	277	**Example:**
278	278
...	...	@@ -303,9 +303,9 @@
303	303	0x00: No Ultrasonic Sensor
304	304
305	305
	279	+===
	280	+(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
306	306
307		-=== 2.3.6  Decode payload in The Things Network ===
308		-
309	309	While using TTN network, you can add the payload format to decode the payload.
310	310
311	311
...	...	@@ -839,6 +839,8 @@
839	839	* Solid ON for 5 seconds once device successful Join the network.
840	840	* Blink once when device transmit a packet.
841	841
	815	+
	816	+
842	842	== 2.8  ​Firmware Change Log ==
843	843
844	844
...	...	@@ -854,13 +854,11 @@
854	854
855	855	[[image:image-20220610172003-1.png]]
856	856
857		-
858	858	[[image:image-20220610172003-2.png]]
859	859
860	860
	835	+== 2.10  Battery Analysis  ==
861	861
862		-== 2.10  Battery Analysis ==
863		-
864	864	=== 2.10.1  Battery Type ===
865	865
866	866	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.
...	...	@@ -869,7 +869,7 @@
869	869	The battery related documents as below:
870	870
871	871	* (((
872		-[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
	845	+[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
873	873	)))
874	874	* (((
875	875	[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
...	...	@@ -884,31 +884,84 @@
884	884
885	885	=== 2.10.2  Replace the battery ===
886	886
	860	+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.
	861	+
	862	+
	863	+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)
	864	+
	865	+
	866	+
	867	+= 3.  LiDAR ToF Measurement =
	868	+
	869	+== 3.1 Principle of Distance Measurement ==
	870	+
	871	+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.
	872	+
	873	+[[image:1654831757579-263.png]]
	874	+
	875	+
	876	+
	877	+== 3.2 Distance Measurement Characteristics ==
	878	+
	879	+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:
	880	+
	881	+[[image:1654831774373-275.png]]
	882	+
	883	+
887	887	(((
888		-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.
	885	+(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
889	889	)))
890	890
891	891	(((
892		-
	889	+(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
893	893	)))
894	894
895	895	(((
896		-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)
	893	+(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
897	897	)))
898	898
899	899
	897	+(((
	898	+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:
	899	+)))
900	900
901		-= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
902	902
	902	+[[image:1654831797521-720.png]]
	903	+
	904	+
903	903	(((
	906	+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.
	907	+)))
	908	+
	909	+[[image:1654831810009-716.png]]
	910	+
	911	+
904	904	(((
905		-Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
	913	+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.
906	906	)))
	915	+
	916	+
	917	+
	918	+== 3.3 Notice of usage: ==
	919	+
	920	+Possible invalid /wrong reading for LiDAR ToF tech:
	921	+
	922	+* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
	923	+* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
	924	+* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
	925	+* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
	926	+
	927	+= 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
	928	+
	929	+(((
	930	+(((
	931	+Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
907	907	)))
	933	+)))
908	908
909	909	* (((
910	910	(((
911		-AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
	937	+AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
912	912	)))
913	913	)))
914	914	* (((
...	...	@@ -923,7 +923,7 @@
923	923	)))
924	924
925	925	(((
926		-There are two kinds of commands to configure LDDS75, they are:
	952	+There are two kinds of commands to configure LLDS12, they are:
927	927	)))
928	928	)))
929	929
...	...	@@ -964,148 +964,351 @@
964	964
965	965	* (((
966	966	(((
967		-(% style="color:#4f81bd" %)** Commands special design for LDDS75**
	993	+(% style="color:#4f81bd" %)** Commands special design for LLDS12**
968	968	)))
969	969	)))
970	970
971	971	(((
972	972	(((
973		-These commands only valid for LDDS75, as below:
	999	+These commands only valid for LLDS12, as below:
974	974	)))
975	975	)))
976	976
977	977
978	978
979		-== 3.1  Access AT Commands ==
	1005	+== 4.1  Set Transmit Interval Time ==
980	980
981		-LDDS75 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS75 for using AT command, as below.
	1007	+Feature: Change LoRaWAN End Node Transmit Interval.
982	982
983		-[[image:image-20220610172924-4.png||height="483" width="988"]]
	1009	+(% style="color:#037691" %)**AT Command: AT+TDC**
984	984
	1011	+[[image:image-20220607171554-8.png]]
985	985
986		-Or if you have below board, use below connection:
987	987
	1014	+(((
	1015	+(% style="color:#037691" %)**Downlink Command: 0x01**
	1016	+)))
988	988
989		-[[image:image-20220610172924-5.png]]
	1018	+(((
	1019	+Format: Command Code (0x01) followed by 3 bytes time value.
	1020	+)))
990	990
	1022	+(((
	1023	+If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1024	+)))
991	991
992		-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:
	1026	+* (((
	1027	+Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	1028	+)))
	1029	+* (((
	1030	+Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1031	+)))
993	993
	1033	+== 4.2  Set Interrupt Mode ==
994	994
995		- [[image:image-20220610172924-6.png||height="601" width="860"]]
	1035	+Feature, Set Interrupt mode for GPIO_EXIT.
996	996
	1037	+(% style="color:#037691" %)**AT Command: AT+INTMOD**
997	997
	1039	+[[image:image-20220610105806-2.png]]
998	998
999		-== 3.2  Set Transmit Interval Time ==
1000	1000
1001		-Feature: Change LoRaWAN End Node Transmit Interval.
	1042	+(((
	1043	+(% style="color:#037691" %)**Downlink Command: 0x06**
	1044	+)))
1002	1002
1003		-(% style="color:#037691" %)**AT Command: AT+TDC**
	1046	+(((
	1047	+Format: Command Code (0x06) followed by 3 bytes.
	1048	+)))
1004	1004
1005		-[[image:image-20220610173409-7.png]]
	1050	+(((
	1051	+This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1052	+)))
1006	1006
	1054	+* (((
	1055	+Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	1056	+)))
	1057	+* (((
	1058	+Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	1059	+)))
1007	1007
	1061	+== 4.3  Get Firmware Version Info ==
	1062	+
	1063	+Feature: use downlink to get firmware version.
	1064	+
	1065	+(% style="color:#037691" %)**Downlink Command: 0x26**
	1066	+
	1067	+[[image:image-20220607171917-10.png]]
	1068	+
	1069	+* Reply to the confirmation package: 26 01
	1070	+* Reply to non-confirmed packet: 26 00
	1071	+
	1072	+Device will send an uplink after got this downlink command. With below payload:
	1073	+
	1074	+Configures info payload:
	1075	+
	1076	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	1077	+|=(((
	1078	+**Size(bytes)**
	1079	+)))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1**
	1080	+|**Value**|Software Type|(((
	1081	+Frequency
	1082	+
	1083	+Band
	1084	+)))|Sub-band|(((
	1085	+Firmware
	1086	+
	1087	+Version
	1088	+)))|Sensor Type|Reserve|(((
	1089	+[[Message Type>>||anchor="H2.3.7A0MessageType"]]
	1090	+Always 0x02
	1091	+)))
	1092	+
	1093	+**Software Type**: Always 0x03 for LLDS12
	1094	+
	1095	+
	1096	+**Frequency Band**:
	1097	+
	1098	+*0x01: EU868
	1099	+
	1100	+*0x02: US915
	1101	+
	1102	+*0x03: IN865
	1103	+
	1104	+*0x04: AU915
	1105	+
	1106	+*0x05: KZ865
	1107	+
	1108	+*0x06: RU864
	1109	+
	1110	+*0x07: AS923
	1111	+
	1112	+*0x08: AS923-1
	1113	+
	1114	+*0x09: AS923-2
	1115	+
	1116	+*0xa0: AS923-3
	1117	+
	1118	+
	1119	+**Sub-Band**: value 0x00 ~~ 0x08
	1120	+
	1121	+
	1122	+**Firmware Version**: 0x0100, Means: v1.0.0 version
	1123	+
	1124	+
	1125	+**Sensor Type**:
	1126	+
	1127	+0x01: LSE01
	1128	+
	1129	+0x02: LDDS75
	1130	+
	1131	+0x03: LDDS20
	1132	+
	1133	+0x04: LLMS01
	1134	+
	1135	+0x05: LSPH01
	1136	+
	1137	+0x06: LSNPK01
	1138	+
	1139	+0x07: LLDS12
	1140	+
	1141	+
	1142	+
	1143	+= 5.  Battery & How to replace =
	1144	+
	1145	+== 5.1  Battery Type ==
	1146	+
1008	1008	(((
1009		-(% style="color:#037691" %)**Downlink Command: 0x01**
	1148	+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.
1010	1010	)))
1011	1011
1012	1012	(((
	1152	+The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
	1153	+)))
	1154	+
	1155	+[[image:1654593587246-335.png]]
	1156	+
	1157	+
	1158	+Minimum Working Voltage for the LLDS12:
	1159	+
	1160	+LLDS12:  2.45v ~~ 3.6v
	1161	+
	1162	+
	1163	+
	1164	+== 5.2  Replace Battery ==
	1165	+
1013	1013	(((
1014		-Format: Command Code (0x01) followed by 3 bytes time value.
	1167	+Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
	1168	+)))
1015	1015
1016		-If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1170	+(((
	1171	+And make sure the positive and negative pins match.
	1172	+)))
1017	1017
1018		-* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1019		-* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1174	+
	1175	+
	1176	+== 5.3  Power Consumption Analyze ==
	1177	+
	1178	+(((
	1179	+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.
1020	1020	)))
1021	1021
	1182	+(((
	1183	+Instruction to use as below:
	1184	+)))
1022	1022
1023		-
	1186	+
	1187	+**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
	1188	+
	1189	+[[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/]]
	1190	+
	1191	+
	1192	+**Step 2**: Open it and choose
	1193	+
	1194	+* Product Model
	1195	+* Uplink Interval
	1196	+* Working Mode
	1197	+
	1198	+And the Life expectation in difference case will be shown on the right.
	1199	+
	1200	+[[image:1654593605679-189.png]]
	1201	+
	1202	+
	1203	+The battery related documents as below:
	1204	+
	1205	+* (((
	1206	+[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
1024	1024	)))
	1208	+* (((
	1209	+[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
	1210	+)))
	1211	+* (((
	1212	+[[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]]
	1213	+)))
1025	1025
1026		-== 3.3  Set Interrupt Mode ==
	1215	+[[image:image-20220607172042-11.png]]
1027	1027
1028		-Feature, Set Interrupt mode for GPIO_EXIT.
1029	1029
1030		-(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1031	1031
1032		-[[image:image-20220610174917-9.png]]
	1219	+=== 5.3.1  ​Battery Note ===
1033	1033
	1221	+(((
	1222	+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.
	1223	+)))
1034	1034
1035		-(% style="color:#037691" %)**Downlink Command: 0x06**
1036	1036
1037		-Format: Command Code (0x06) followed by 3 bytes.
1038	1038
1039		-This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1227	+=== ​5.3.2  Replace the battery ===
1040	1040
1041		-* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1042		-* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	1229	+(((
	1230	+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.
	1231	+)))
1043	1043
1044		-= 4.  FAQ =
	1233	+(((
	1234	+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)
	1235	+)))
1045	1045
1046		-== 4.1  What is the frequency plan for LDDS75? ==
1047	1047
1048		-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"]]
1049	1049
	1239	+= 6.  Use AT Command =
1050	1050
	1241	+== 6.1  Access AT Commands ==
1051	1051
1052		-== 4.2  How to change the LoRa Frequency Bands/Region ==
	1243	+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.
1053	1053
1054		-You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1055		-When downloading the images, choose the required image file for download. ​
	1245	+[[image:1654593668970-604.png]]
1056	1056
	1247	+**Connection:**
1057	1057
	1249	+(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1058	1058
1059		-== 4.3  Can I use LDDS75 in condensation environment? ==
	1251	+(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1060	1060
1061		-LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
	1253	+(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1062	1062
1063	1063
	1256	+(((
	1257	+(((
	1258	+In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
	1259	+)))
1064	1064
1065		-= 5.  Trouble Shooting =
	1261	+(((
	1262	+LLDS12 will output system info once power on as below:
	1263	+)))
	1264	+)))
1066	1066
1067		-== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1068	1068
1069		-It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	1267	+ [[image:1654593712276-618.png]]
1070	1070
	1269	+Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1071	1071
1072		-== 5.2  AT Command input doesn't work ==
1073	1073
	1272	+= 7.  FAQ =
	1273	+
	1274	+== 7.1  How to change the LoRa Frequency Bands/Region ==
	1275	+
	1276	+You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
	1277	+When downloading the images, choose the required image file for download. ​
	1278	+
	1279	+
	1280	+= 8.  Trouble Shooting =
	1281	+
	1282	+== 8.1  AT Commands input doesn’t work ==
	1283	+
	1284	+
	1285	+(((
1074	1074	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.
	1287	+)))
1075	1075
	1289	+
	1290	+== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
	1291	+
	1292	+
1076	1076	(((
	1294	+(% 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.)
	1295	+)))
	1296	+
	1297	+(((
	1298	+Troubleshooting: Please avoid use of this product under such circumstance in practice.
	1299	+)))
	1300	+
	1301	+(((
1077	1077
1078	1078	)))
1079	1079
	1305	+(((
	1306	+(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
	1307	+)))
1080	1080
1081		-= 6.  Order Info =
	1309	+(((
	1310	+Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
	1311	+)))
1082	1082
1083	1083
1084		-Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1085	1085
	1315	+= 9.  Order Info =
1086	1086
1087		-(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1088	1088
1089		-* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1090		-* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1091		-* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1092		-* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1093		-* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1094		-* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1095		-* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1096		-* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
	1318	+Part Number: (% style="color:blue" %)**LLDS12-XX**
1097	1097
1098		-(% style="color:blue" %)**YY**(%%): Battery Option
1099	1099
1100		-* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1101		-* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
	1321	+(% style="color:blue" %)**XX**(%%): The default frequency band
1102	1102
1103		-= 7. ​ Packing Info =
	1323	+* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
	1324	+* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
	1325	+* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
	1326	+* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
	1327	+* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
	1328	+* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
	1329	+* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
	1330	+* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1104	1104
	1332	+= 10. ​ Packing Info =
1105	1105
	1334	+
1106	1106	**Package Includes**:
1107	1107
1108		-* LDDS75 LoRaWAN Distance Detection Sensor x 1
	1337	+* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
1109	1109
1110	1110	**Dimension and weight**:
1111	1111
...	...	@@ -1114,7 +1114,7 @@
1114	1114	* Package Size / pcs : cm
1115	1115	* Weight / pcs : g
1116	1116
1117		-= 8.  ​Support =
	1346	+= 11.  ​Support =
1118	1118
1119	1119	* 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.
1120	1120	* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]].

image-20220610172924-4.png

Author

...	...	@@ -1,1 +1,0 @@
1		-XWiki.Xiaoling

Size

...	...	@@ -1,1 +1,0 @@
1		-1.5 MB

Content

image-20220610172924-5.png

Author

...	...	@@ -1,1 +1,0 @@
1		-XWiki.Xiaoling

Size

...	...	@@ -1,1 +1,0 @@
1		-901.4 KB

Content

image-20220610172924-6.png

Author

...	...	@@ -1,1 +1,0 @@
1		-XWiki.Xiaoling

Size

...	...	@@ -1,1 +1,0 @@
1		-68.6 KB

Content

image-20220610173409-7.png

Author

...	...	@@ -1,1 +1,0 @@
1		-XWiki.Xiaoling

Size

...	...	@@ -1,1 +1,0 @@
1		-11.8 KB

Content

image-20220610174836-8.png

Author

...	...	@@ -1,1 +1,0 @@
1		-XWiki.Xiaoling

Size

...	...	@@ -1,1 +1,0 @@
1		-34.3 KB

Content

image-20220610174917-9.png

Author

...	...	@@ -1,1 +1,0 @@
1		-XWiki.Xiaoling

Size

...	...	@@ -1,1 +1,0 @@
1		-34.3 KB

Content