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...	...	@@ -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]]
...	...	@@ -86,6 +86,8 @@
86	86	* IP66 Waterproof Enclosure
87	87	* 4000mAh or 8500mAh Battery for long term use
88	88
	60	+
	61	+
89	89	== 1.3  Specification ==
90	90
91	91	=== 1.3.1  Rated environmental conditions ===
...	...	@@ -107,7 +107,6 @@
107	107	[[image:1654852253176-749.png]]
108	108
109	109
110		-
111	111	**(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.**
112	112
113	113
...	...	@@ -127,6 +127,8 @@
127	127	* Sewer
128	128	* Bottom water level monitoring
129	129
	102	+
	103	+
130	130	== 1.6  Pin mapping and power on ==
131	131
132	132
...	...	@@ -235,12 +235,12 @@
235	235	**Size (bytes)**
236	236	)))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1**
237	237	|(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
238		-[[Distance>>||anchor="H2.3.2A0Distance"]]
	212	+[[Distance>>||anchor="H2.3.3A0Distance"]]
239	239
240	240	(unit: mm)
241		-)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
242		-[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
243		-)))|[[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]]
244	244
245	245	[[image:1654850511545-399.png]]
246	246
...	...	@@ -268,9 +268,10 @@
268	268	* 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.
269	269
270	270
	245	+
271	271	=== 2.3.3  Interrupt Pin ===
272	272
273		-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.
274	274
275	275	**Example:**
276	276
...	...	@@ -301,9 +301,9 @@
301	301	0x00: No Ultrasonic Sensor
302	302
303	303
	279	+===
	280	+(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
304	304
305		-=== 2.3.6  Decode payload in The Things Network ===
306		-
307	307	While using TTN network, you can add the payload format to decode the payload.
308	308
309	309
...	...	@@ -838,6 +838,7 @@
838	838	* Blink once when device transmit a packet.
839	839
840	840
	816	+
841	841	== 2.8  ​Firmware Change Log ==
842	842
843	843
...	...	@@ -853,13 +853,11 @@
853	853
854	854	[[image:image-20220610172003-1.png]]
855	855
856		-
857	857	[[image:image-20220610172003-2.png]]
858	858
859	859
	835	+== 2.10  Battery Analysis  ==
860	860
861		-== 2.10  Battery Analysis ==
862		-
863	863	=== 2.10.1  Battery Type ===
864	864
865	865	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.
...	...	@@ -868,7 +868,7 @@
868	868	The battery related documents as below:
869	869
870	870	* (((
871		-[[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]],
872	872	)))
873	873	* (((
874	874	[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
...	...	@@ -884,7 +884,7 @@
884	884	=== 2.10.2  Replace the battery ===
885	885
886	886	(((
887		-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	+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.
888	888	)))
889	889
890	890	(((
...	...	@@ -892,22 +892,22 @@
892	892	)))
893	893
894	894	(((
895		-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)
	869	+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)
896	896	)))
897	897
898	898
899	899
900		-= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
	874	+= 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
901	901
902	902	(((
903	903	(((
904		-Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
	878	+Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
905	905	)))
906	906	)))
907	907
908	908	* (((
909	909	(((
910		-AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
	884	+AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
911	911	)))
912	912	)))
913	913	* (((
...	...	@@ -922,7 +922,7 @@
922	922	)))
923	923
924	924	(((
925		-There are two kinds of commands to configure LDDS75, they are:
	899	+There are two kinds of commands to configure LLDS12, they are:
926	926	)))
927	927	)))
928	928
...	...	@@ -963,152 +963,351 @@
963	963
964	964	* (((
965	965	(((
966		-(% style="color:#4f81bd" %)** Commands special design for LDDS75**
	940	+(% style="color:#4f81bd" %)** Commands special design for LLDS12**
967	967	)))
968	968	)))
969	969
970	970	(((
971	971	(((
972		-These commands only valid for LDDS75, as below:
	946	+These commands only valid for LLDS12, as below:
973	973	)))
974	974	)))
975	975
976	976
977	977
978		-== 3.1  Access AT Commands ==
	952	+== 4.1  Set Transmit Interval Time ==
979	979
980		-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.
	954	+Feature: Change LoRaWAN End Node Transmit Interval.
981	981
982		-[[image:image-20220610172924-4.png||height="483" width="988"]]
	956	+(% style="color:#037691" %)**AT Command: AT+TDC**
983	983
	958	+[[image:image-20220607171554-8.png]]
984	984
985		-Or if you have below board, use below connection:
986	986
	961	+(((
	962	+(% style="color:#037691" %)**Downlink Command: 0x01**
	963	+)))
987	987
988		-[[image:image-20220610172924-5.png]]
	965	+(((
	966	+Format: Command Code (0x01) followed by 3 bytes time value.
	967	+)))
989	989
	969	+(((
	970	+If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	971	+)))
990	990
991		-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:
	973	+* (((
	974	+Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	975	+)))
	976	+* (((
	977	+Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	978	+)))
992	992
	980	+== 4.2  Set Interrupt Mode ==
993	993
994		- [[image:image-20220610172924-6.png||height="601" width="860"]]
	982	+Feature, Set Interrupt mode for GPIO_EXIT.
995	995
	984	+(% style="color:#037691" %)**AT Command: AT+INTMOD**
996	996
	986	+[[image:image-20220610105806-2.png]]
997	997
998		-== 3.2  Set Transmit Interval Time ==
999	999
1000		-Feature: Change LoRaWAN End Node Transmit Interval.
	989	+(((
	990	+(% style="color:#037691" %)**Downlink Command: 0x06**
	991	+)))
1001	1001
1002		-(% style="color:#037691" %)**AT Command: AT+TDC**
	993	+(((
	994	+Format: Command Code (0x06) followed by 3 bytes.
	995	+)))
1003	1003
1004		-[[image:image-20220610173409-7.png]]
	997	+(((
	998	+This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	999	+)))
1005	1005
	1001	+* (((
	1002	+Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	1003	+)))
	1004	+* (((
	1005	+Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	1006	+)))
1006	1006
	1008	+== 4.3  Get Firmware Version Info ==
	1009	+
	1010	+Feature: use downlink to get firmware version.
	1011	+
	1012	+(% style="color:#037691" %)**Downlink Command: 0x26**
	1013	+
	1014	+[[image:image-20220607171917-10.png]]
	1015	+
	1016	+* Reply to the confirmation package: 26 01
	1017	+* Reply to non-confirmed packet: 26 00
	1018	+
	1019	+Device will send an uplink after got this downlink command. With below payload:
	1020	+
	1021	+Configures info payload:
	1022	+
	1023	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	1024	+|=(((
	1025	+**Size(bytes)**
	1026	+)))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1**
	1027	+|**Value**|Software Type|(((
	1028	+Frequency
	1029	+
	1030	+Band
	1031	+)))|Sub-band|(((
	1032	+Firmware
	1033	+
	1034	+Version
	1035	+)))|Sensor Type|Reserve|(((
	1036	+[[Message Type>>||anchor="H2.3.7A0MessageType"]]
	1037	+Always 0x02
	1038	+)))
	1039	+
	1040	+**Software Type**: Always 0x03 for LLDS12
	1041	+
	1042	+
	1043	+**Frequency Band**:
	1044	+
	1045	+*0x01: EU868
	1046	+
	1047	+*0x02: US915
	1048	+
	1049	+*0x03: IN865
	1050	+
	1051	+*0x04: AU915
	1052	+
	1053	+*0x05: KZ865
	1054	+
	1055	+*0x06: RU864
	1056	+
	1057	+*0x07: AS923
	1058	+
	1059	+*0x08: AS923-1
	1060	+
	1061	+*0x09: AS923-2
	1062	+
	1063	+*0xa0: AS923-3
	1064	+
	1065	+
	1066	+**Sub-Band**: value 0x00 ~~ 0x08
	1067	+
	1068	+
	1069	+**Firmware Version**: 0x0100, Means: v1.0.0 version
	1070	+
	1071	+
	1072	+**Sensor Type**:
	1073	+
	1074	+0x01: LSE01
	1075	+
	1076	+0x02: LDDS75
	1077	+
	1078	+0x03: LDDS20
	1079	+
	1080	+0x04: LLMS01
	1081	+
	1082	+0x05: LSPH01
	1083	+
	1084	+0x06: LSNPK01
	1085	+
	1086	+0x07: LLDS12
	1087	+
	1088	+
	1089	+
	1090	+= 5.  Battery & How to replace =
	1091	+
	1092	+== 5.1  Battery Type ==
	1093	+
1007	1007	(((
1008		-(% style="color:#037691" %)**Downlink Command: 0x01**
	1095	+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.
1009	1009	)))
1010	1010
1011	1011	(((
	1099	+The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
	1100	+)))
	1101	+
	1102	+[[image:1654593587246-335.png]]
	1103	+
	1104	+
	1105	+Minimum Working Voltage for the LLDS12:
	1106	+
	1107	+LLDS12:  2.45v ~~ 3.6v
	1108	+
	1109	+
	1110	+
	1111	+== 5.2  Replace Battery ==
	1112	+
1012	1012	(((
1013		-Format: Command Code (0x01) followed by 3 bytes time value.
	1114	+Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
	1115	+)))
1014	1014
1015		-If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1117	+(((
	1118	+And make sure the positive and negative pins match.
	1119	+)))
1016	1016
1017		-* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1018		-* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1121	+
	1122	+
	1123	+== 5.3  Power Consumption Analyze ==
	1124	+
	1125	+(((
	1126	+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.
1019	1019	)))
1020	1020
	1129	+(((
	1130	+Instruction to use as below:
	1131	+)))
1021	1021
1022		-
	1133	+
	1134	+**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
	1135	+
	1136	+[[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/]]
	1137	+
	1138	+
	1139	+**Step 2**: Open it and choose
	1140	+
	1141	+* Product Model
	1142	+* Uplink Interval
	1143	+* Working Mode
	1144	+
	1145	+And the Life expectation in difference case will be shown on the right.
	1146	+
	1147	+[[image:1654593605679-189.png]]
	1148	+
	1149	+
	1150	+The battery related documents as below:
	1151	+
	1152	+* (((
	1153	+[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
1023	1023	)))
	1155	+* (((
	1156	+[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
	1157	+)))
	1158	+* (((
	1159	+[[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]]
	1160	+)))
1024	1024
1025		-== 3.3  Set Interrupt Mode ==
	1162	+[[image:image-20220607172042-11.png]]
1026	1026
1027		-Feature, Set Interrupt mode for GPIO_EXIT.
1028	1028
1029		-(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1030	1030
1031		-[[image:image-20220610174917-9.png]]
	1166	+=== 5.3.1  ​Battery Note ===
1032	1032
	1168	+(((
	1169	+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.
	1170	+)))
1033	1033
1034		-(% style="color:#037691" %)**Downlink Command: 0x06**
1035	1035
1036		-Format: Command Code (0x06) followed by 3 bytes.
1037	1037
1038		-This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1174	+=== ​5.3.2  Replace the battery ===
1039	1039
1040		-* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1041		-* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	1176	+(((
	1177	+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.
	1178	+)))
1042	1042
	1180	+(((
	1181	+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)
	1182	+)))
1043	1043
1044	1044
1045		-= 4.  FAQ =
1046	1046
1047		-== 4.1  What is the frequency plan for LDDS75? ==
	1186	+= 6.  Use AT Command =
1048	1048
1049		-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"]]
	1188	+== 6.1  Access AT Commands ==
1050	1050
	1190	+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.
1051	1051
	1192	+[[image:1654593668970-604.png]]
1052	1052
1053		-== 4.2  How to change the LoRa Frequency Bands/Region ==
	1194	+**Connection:**
1054	1054
1055		-You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1056		-When downloading the images, choose the required image file for download. ​
	1196	+(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1057	1057
	1198	+(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1058	1058
	1200	+(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1059	1059
1060		-== 4.3  Can I use LDDS75 in condensation environment? ==
1061	1061
1062		-LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
	1203	+(((
	1204	+(((
	1205	+In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
	1206	+)))
1063	1063
	1208	+(((
	1209	+LLDS12 will output system info once power on as below:
	1210	+)))
	1211	+)))
1064	1064
1065	1065
1066		-= 5.  Trouble Shooting =
	1214	+ [[image:1654593712276-618.png]]
1067	1067
1068		-== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
	1216	+Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1069	1069
1070		-It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1071	1071
	1219	+= 7.  FAQ =
1072	1072
1073		-== 5.2  AT Command input doesn't work ==
	1221	+== 7.1  How to change the LoRa Frequency Bands/Region ==
1074	1074
	1223	+You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
	1224	+When downloading the images, choose the required image file for download. ​
	1225	+
	1226	+
	1227	+= 8.  Trouble Shooting =
	1228	+
	1229	+== 8.1  AT Commands input doesn’t work ==
	1230	+
	1231	+
	1232	+(((
1075	1075	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.
	1234	+)))
1076	1076
	1236	+
	1237	+== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
	1238	+
	1239	+
1077	1077	(((
1078		-
	1241	+(% 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.)
1079	1079	)))
1080	1080
	1244	+(((
	1245	+Troubleshooting: Please avoid use of this product under such circumstance in practice.
	1246	+)))
1081	1081
1082		-= 6.  Order Info =
	1248	+(((
	1249	+
	1250	+)))
1083	1083
	1252	+(((
	1253	+(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
	1254	+)))
1084	1084
1085		-Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
	1256	+(((
	1257	+Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
	1258	+)))
1086	1086
1087	1087
1088		-(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1089	1089
1090		-* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1091		-* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1092		-* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1093		-* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1094		-* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1095		-* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1096		-* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1097		-* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
	1262	+= 9.  Order Info =
1098	1098
1099		-(% style="color:blue" %)**YY**(%%): Battery Option
1100	1100
1101		-* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1102		-* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
	1265	+Part Number: (% style="color:blue" %)**LLDS12-XX**
1103	1103
1104	1104
	1268	+(% style="color:blue" %)**XX**(%%): The default frequency band
1105	1105
1106		-= 7. ​ Packing Info =
	1270	+* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
	1271	+* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
	1272	+* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
	1273	+* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
	1274	+* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
	1275	+* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
	1276	+* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
	1277	+* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1107	1107
	1279	+= 10. ​ Packing Info =
1108	1108
	1281	+
1109	1109	**Package Includes**:
1110	1110
1111		-* LDDS75 LoRaWAN Distance Detection Sensor x 1
	1284	+* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
1112	1112
1113	1113	**Dimension and weight**:
1114	1114
...	...	@@ -1117,9 +1117,7 @@
1117	1117	* Package Size / pcs : cm
1118	1118	* Weight / pcs : g
1119	1119
	1293	+= 11.  ​Support =
1120	1120
1121		-
1122		-= 8.  ​Support =
1123		-
1124	1124	* 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.
1125	1125	* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]].

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