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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 ==
...	...	@@ -35,7 +35,7 @@
35	35	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.
36	36
37	37
38		-(% 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
39	39	)))
40	40	)))
41	41
...	...	@@ -82,7 +82,6 @@
82	82	[[image:1654852253176-749.png]]
83	83
84	84
85		-
86	86	**(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.**
87	87
88	88
...	...	@@ -104,7 +104,6 @@
104	104
105	105
106	106
107		-
108	108	== 1.6  Pin mapping and power on ==
109	109
110	110
...	...	@@ -245,6 +245,8 @@
245	245	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
246	246	* 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.
247	247
	244	+
	245	+
248	248	=== 2.3.3  Interrupt Pin ===
249	249
250	250	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.
...	...	@@ -278,9 +278,9 @@
278	278	0x00: No Ultrasonic Sensor
279	279
280	280
	279	+===
	280	+(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
281	281
282		-=== 2.3.6  Decode payload in The Things Network ===
283		-
284	284	While using TTN network, you can add the payload format to decode the payload.
285	285
286	286
...	...	@@ -806,18 +806,15 @@
806	806
807	807	== 2.7  LED Indicator ==
808	808
809		-The LDDS75 has an internal LED which is to show the status of different state.
	807	+The LLDS12 has an internal LED which is to show the status of different state.
810	810
811		-
812		-* Blink once when device power on.
813		-* The device detects the sensor and flashes 5 times.
814		-* Solid ON for 5 seconds once device successful Join the network.
	809	+* The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
815	815	* Blink once when device transmit a packet.
816	816
817	817	== 2.8  ​Firmware Change Log ==
818	818
819	819
820		-**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
	815	+**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/]]
821	821
822	822
823	823	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
...	...	@@ -824,58 +824,71 @@
824	824
825	825
826	826
827		-== 2.9  Mechanical ==
	822	+= 3.  LiDAR ToF Measurement =
828	828
	824	+== 3.1 Principle of Distance Measurement ==
829	829
830		-[[image:image-20220610172003-1.png]]
	826	+The LiDAR probe is based on TOF, namely, Time of Flight principle. To be specific, the product emits modulation wave of near infrared ray on a periodic basis, which will be reflected after contacting object. The product obtains the time of flight by measuring round-trip phase difference and then calculates relative range between the product and the detection object, as shown below.
831	831
832		-[[image:image-20220610172003-2.png]]
	828	+[[image:1654831757579-263.png]]
833	833
834	834
835		-== 2.10  Battery Analysis ==
836	836
837		-=== 2.10.1  Battery Type ===
	832	+== 3.2 Distance Measurement Characteristics ==
838	838
839		-The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
	834	+With optimization of light path and algorithm, The LiDAR probe has minimized influence from external environment on distance measurement performance. Despite that, the range of distance measurement may still be affected by the environment illumination intensity and the reflectivity of detection object. As shown in below:
840	840
	836	+[[image:1654831774373-275.png]]
841	841
842		-The battery related documents as below:
843	843
844		-* (((
845		-[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
	839	+(((
	840	+(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
846	846	)))
847		-* (((
848		-[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
	842	+
	843	+(((
	844	+(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
849	849	)))
850		-* (((
851		-[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
	846	+
	847	+(((
	848	+(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
852	852	)))
853	853
854		- [[image:image-20220610172400-3.png]]
855	855
	852	+(((
	853	+Vertical Coordinates: Represents the radius of light spot for The LiDAR probe at the different distances. The diameter of light spot depends on the FOV of The LiDAR probe (the term of FOV generally refers to the smaller value between the receiving angle and the transmitting angle), which is calculated as follows:
	854	+)))
856	856
857	857
858		-=== 2.10.2  Replace the battery ===
	857	+[[image:1654831797521-720.png]]
859	859
860		-(((
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.
862		-)))
863	863
864	864	(((
865		-
	861	+In the formula above, d is the diameter of light spot; D is detecting range; β is the value of the receiving angle of The LiDAR probe, 3.6°. Correspondence between the diameter of light spot and detecting range is given in Table below.
866	866	)))
867	867
	864	+[[image:1654831810009-716.png]]
	865	+
	866	+
868	868	(((
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)
	868	+If the light spot reaches two objects with different distances, as shown in Figure 3, the output distance value will be a value between the actual distance values of the two objects. For a high accuracy requirement in practice, the above situation should be noticed to avoid the measurement error.
870	870	)))
871	871
872	872
873	873
874		-= 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
	873	+== 3.3 Notice of usage: ==
875	875
	875	+Possible invalid /wrong reading for LiDAR ToF tech:
	876	+
	877	+* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
	878	+* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
	879	+* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
	880	+* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
	881	+
	882	+= 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
	883	+
876	876	(((
877	877	(((
878		-Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
	886	+Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
879	879	)))
880	880	)))
881	881
...	...	@@ -896,7 +896,7 @@
896	896	)))
897	897
898	898	(((
899		-There are two kinds of commands to configure LDDS75, they are:
	907	+There are two kinds of commands to configure LLDS12, they are:
900	900	)))
901	901	)))
902	902
...	...	@@ -937,148 +937,351 @@
937	937
938	938	* (((
939	939	(((
940		-(% style="color:#4f81bd" %)** Commands special design for LDDS75**
	948	+(% style="color:#4f81bd" %)** Commands special design for LLDS12**
941	941	)))
942	942	)))
943	943
944	944	(((
945	945	(((
946		-These commands only valid for LDDS75, as below:
	954	+These commands only valid for LLDS12, as below:
947	947	)))
948	948	)))
949	949
950	950
951	951
952		-== 3.1  Access AT Commands ==
	960	+== 4.1  Set Transmit Interval Time ==
953	953
954		-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.
	962	+Feature: Change LoRaWAN End Node Transmit Interval.
955	955
956		-[[image:image-20220610172924-4.png||height="483" width="988"]]
	964	+(% style="color:#037691" %)**AT Command: AT+TDC**
957	957
	966	+[[image:image-20220607171554-8.png]]
958	958
959		-Or if you have below board, use below connection:
960	960
	969	+(((
	970	+(% style="color:#037691" %)**Downlink Command: 0x01**
	971	+)))
961	961
962		-[[image:image-20220610172924-5.png]]
	973	+(((
	974	+Format: Command Code (0x01) followed by 3 bytes time value.
	975	+)))
963	963
	977	+(((
	978	+If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	979	+)))
964	964
965		-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:
	981	+* (((
	982	+Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	983	+)))
	984	+* (((
	985	+Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	986	+)))
966	966
	988	+== 4.2  Set Interrupt Mode ==
967	967
968		- [[image:image-20220610172924-6.png||height="601" width="860"]]
	990	+Feature, Set Interrupt mode for GPIO_EXIT.
969	969
	992	+(% style="color:#037691" %)**AT Command: AT+INTMOD**
970	970
	994	+[[image:image-20220610105806-2.png]]
971	971
972		-== 3.2  Set Transmit Interval Time ==
973	973
974		-Feature: Change LoRaWAN End Node Transmit Interval.
	997	+(((
	998	+(% style="color:#037691" %)**Downlink Command: 0x06**
	999	+)))
975	975
976		-(% style="color:#037691" %)**AT Command: AT+TDC**
	1001	+(((
	1002	+Format: Command Code (0x06) followed by 3 bytes.
	1003	+)))
977	977
978		-[[image:image-20220610173409-7.png]]
	1005	+(((
	1006	+This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1007	+)))
979	979
	1009	+* (((
	1010	+Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	1011	+)))
	1012	+* (((
	1013	+Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	1014	+)))
980	980
	1016	+== 4.3  Get Firmware Version Info ==
	1017	+
	1018	+Feature: use downlink to get firmware version.
	1019	+
	1020	+(% style="color:#037691" %)**Downlink Command: 0x26**
	1021	+
	1022	+[[image:image-20220607171917-10.png]]
	1023	+
	1024	+* Reply to the confirmation package: 26 01
	1025	+* Reply to non-confirmed packet: 26 00
	1026	+
	1027	+Device will send an uplink after got this downlink command. With below payload:
	1028	+
	1029	+Configures info payload:
	1030	+
	1031	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	1032	+|=(((
	1033	+**Size(bytes)**
	1034	+)))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1**
	1035	+|**Value**|Software Type|(((
	1036	+Frequency
	1037	+
	1038	+Band
	1039	+)))|Sub-band|(((
	1040	+Firmware
	1041	+
	1042	+Version
	1043	+)))|Sensor Type|Reserve|(((
	1044	+[[Message Type>>||anchor="H2.3.7A0MessageType"]]
	1045	+Always 0x02
	1046	+)))
	1047	+
	1048	+**Software Type**: Always 0x03 for LLDS12
	1049	+
	1050	+
	1051	+**Frequency Band**:
	1052	+
	1053	+*0x01: EU868
	1054	+
	1055	+*0x02: US915
	1056	+
	1057	+*0x03: IN865
	1058	+
	1059	+*0x04: AU915
	1060	+
	1061	+*0x05: KZ865
	1062	+
	1063	+*0x06: RU864
	1064	+
	1065	+*0x07: AS923
	1066	+
	1067	+*0x08: AS923-1
	1068	+
	1069	+*0x09: AS923-2
	1070	+
	1071	+*0xa0: AS923-3
	1072	+
	1073	+
	1074	+**Sub-Band**: value 0x00 ~~ 0x08
	1075	+
	1076	+
	1077	+**Firmware Version**: 0x0100, Means: v1.0.0 version
	1078	+
	1079	+
	1080	+**Sensor Type**:
	1081	+
	1082	+0x01: LSE01
	1083	+
	1084	+0x02: LDDS75
	1085	+
	1086	+0x03: LDDS20
	1087	+
	1088	+0x04: LLMS01
	1089	+
	1090	+0x05: LSPH01
	1091	+
	1092	+0x06: LSNPK01
	1093	+
	1094	+0x07: LLDS12
	1095	+
	1096	+
	1097	+
	1098	+= 5.  Battery & How to replace =
	1099	+
	1100	+== 5.1  Battery Type ==
	1101	+
981	981	(((
982		-(% style="color:#037691" %)**Downlink Command: 0x01**
	1103	+LLDS12 is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]. The battery is un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter.
983	983	)))
984	984
985	985	(((
	1107	+The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
	1108	+)))
	1109	+
	1110	+[[image:1654593587246-335.png]]
	1111	+
	1112	+
	1113	+Minimum Working Voltage for the LLDS12:
	1114	+
	1115	+LLDS12:  2.45v ~~ 3.6v
	1116	+
	1117	+
	1118	+
	1119	+== 5.2  Replace Battery ==
	1120	+
986	986	(((
987		-Format: Command Code (0x01) followed by 3 bytes time value.
	1122	+Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
	1123	+)))
988	988
989		-If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1125	+(((
	1126	+And make sure the positive and negative pins match.
	1127	+)))
990	990
991		-* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
992		-* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1129	+
	1130	+
	1131	+== 5.3  Power Consumption Analyze ==
	1132	+
	1133	+(((
	1134	+Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
993	993	)))
994	994
	1137	+(((
	1138	+Instruction to use as below:
	1139	+)))
995	995
996		-
	1141	+
	1142	+**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
	1143	+
	1144	+[[https:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
	1145	+
	1146	+
	1147	+**Step 2**: Open it and choose
	1148	+
	1149	+* Product Model
	1150	+* Uplink Interval
	1151	+* Working Mode
	1152	+
	1153	+And the Life expectation in difference case will be shown on the right.
	1154	+
	1155	+[[image:1654593605679-189.png]]
	1156	+
	1157	+
	1158	+The battery related documents as below:
	1159	+
	1160	+* (((
	1161	+[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
997	997	)))
	1163	+* (((
	1164	+[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
	1165	+)))
	1166	+* (((
	1167	+[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
	1168	+)))
998	998
999		-== 3.3  Set Interrupt Mode ==
	1170	+[[image:image-20220607172042-11.png]]
1000	1000
1001		-Feature, Set Interrupt mode for GPIO_EXIT.
1002	1002
1003		-(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1004	1004
1005		-[[image:image-20220610174917-9.png]]
	1174	+=== 5.3.1  ​Battery Note ===
1006	1006
	1176	+(((
	1177	+The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
	1178	+)))
1007	1007
1008		-(% style="color:#037691" %)**Downlink Command: 0x06**
1009	1009
1010		-Format: Command Code (0x06) followed by 3 bytes.
1011	1011
1012		-This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1182	+=== ​5.3.2  Replace the battery ===
1013	1013
1014		-* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1015		-* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	1184	+(((
	1185	+You can change the battery in the LLDS12.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board.
	1186	+)))
1016	1016
1017		-= 4.  FAQ =
	1188	+(((
	1189	+The default battery pack of LLDS12 includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
	1190	+)))
1018	1018
1019		-== 4.1  What is the frequency plan for LDDS75? ==
1020	1020
1021		-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"]]
1022	1022
	1194	+= 6.  Use AT Command =
1023	1023
	1196	+== 6.1  Access AT Commands ==
1024	1024
1025		-== 4.2  How to change the LoRa Frequency Bands/Region ==
	1198	+LLDS12 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LLDS12 for using AT command, as below.
1026	1026
1027		-You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1028		-When downloading the images, choose the required image file for download. ​
	1200	+[[image:1654593668970-604.png]]
1029	1029
	1202	+**Connection:**
1030	1030
	1204	+(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1031	1031
1032		-== 4.3  Can I use LDDS75 in condensation environment? ==
	1206	+(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1033	1033
1034		-LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
	1208	+(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1035	1035
1036	1036
	1211	+(((
	1212	+(((
	1213	+In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
	1214	+)))
1037	1037
1038		-= 5.  Trouble Shooting =
	1216	+(((
	1217	+LLDS12 will output system info once power on as below:
	1218	+)))
	1219	+)))
1039	1039
1040		-== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1041	1041
1042		-It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	1222	+ [[image:1654593712276-618.png]]
1043	1043
	1224	+Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1044	1044
1045		-== 5.2  AT Command input doesn't work ==
1046	1046
	1227	+= 7.  FAQ =
	1228	+
	1229	+== 7.1  How to change the LoRa Frequency Bands/Region ==
	1230	+
	1231	+You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
	1232	+When downloading the images, choose the required image file for download. ​
	1233	+
	1234	+
	1235	+= 8.  Trouble Shooting =
	1236	+
	1237	+== 8.1  AT Commands input doesn’t work ==
	1238	+
	1239	+
	1240	+(((
1047	1047	In the case if user can see the console output but can’t type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
	1242	+)))
1048	1048
	1244	+
	1245	+== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
	1246	+
	1247	+
1049	1049	(((
	1249	+(% style="color:blue" %)**Cause ①**(%%)**：**Due to the physical principles of The LiDAR probe, the above phenomenon is likely to occur if the detection object is the material with high reflectivity (such as mirror, smooth floor tile, etc.) or transparent substance (such as glass and water, etc.)
	1250	+)))
	1251	+
	1252	+(((
	1253	+Troubleshooting: Please avoid use of this product under such circumstance in practice.
	1254	+)))
	1255	+
	1256	+(((
1050	1050
1051	1051	)))
1052	1052
	1260	+(((
	1261	+(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
	1262	+)))
1053	1053
1054		-= 6.  Order Info =
	1264	+(((
	1265	+Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
	1266	+)))
1055	1055
1056	1056
1057		-Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1058	1058
	1270	+= 9.  Order Info =
1059	1059
1060		-(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1061	1061
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
	1273	+Part Number: (% style="color:blue" %)**LLDS12-XX**
1070	1070
1071		-(% style="color:blue" %)**YY**(%%): Battery Option
1072	1072
1073		-* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1074		-* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
	1276	+(% style="color:blue" %)**XX**(%%): The default frequency band
1075	1075
1076		-= 7. ​ Packing Info =
	1278	+* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
	1279	+* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
	1280	+* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
	1281	+* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
	1282	+* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
	1283	+* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
	1284	+* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
	1285	+* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1077	1077
	1287	+= 10. ​ Packing Info =
1078	1078
	1289	+
1079	1079	**Package Includes**:
1080	1080
1081		-* LDDS75 LoRaWAN Distance Detection Sensor x 1
	1292	+* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
1082	1082
1083	1083	**Dimension and weight**:
1084	1084
...	...	@@ -1087,7 +1087,7 @@
1087	1087	* Package Size / pcs : cm
1088	1088	* Weight / pcs : g
1089	1089
1090		-= 8.  ​Support =
	1301	+= 11.  ​Support =
1091	1091
1092	1092	* 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.
1093	1093	* 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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