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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
...	...	@@ -101,6 +101,8 @@
101	101	* Sewer
102	102	* Bottom water level monitoring
103	103
	102	+
	103	+
104	104	== 1.6  Pin mapping and power on ==
105	105
106	106
...	...	@@ -241,6 +241,8 @@
241	241	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
242	242	* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
243	243
	244	+
	245	+
244	244	=== 2.3.3  Interrupt Pin ===
245	245
246	246	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.
...	...	@@ -274,9 +274,9 @@
274	274	0x00: No Ultrasonic Sensor
275	275
276	276
	279	+===
	280	+(% style="color:inherit; font-family:inherit" %)2.3.6  Decode payload in The Things Network(%%) ===
277	277
278		-=== 2.3.6  Decode payload in The Things Network ===
279		-
280	280	While using TTN network, you can add the payload format to decode the payload.
281	281
282	282
...	...	@@ -802,18 +802,15 @@
802	802
803	803	== 2.7  LED Indicator ==
804	804
805		-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.
806	806
807		-
808		-* Blink once when device power on.
809		-* The device detects the sensor and flashes 5 times.
810		-* 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.
811	811	* Blink once when device transmit a packet.
812	812
813	813	== 2.8  ​Firmware Change Log ==
814	814
815	815
816		-**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/]]
817	817
818	818
819	819	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
...	...	@@ -820,58 +820,71 @@
820	820
821	821
822	822
823		-== 2.9  Mechanical ==
	822	+= 3.  LiDAR ToF Measurement =
824	824
	824	+== 3.1 Principle of Distance Measurement ==
825	825
826		-[[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.
827	827
828		-[[image:image-20220610172003-2.png]]
	828	+[[image:1654831757579-263.png]]
829	829
830	830
831		-== 2.10  Battery Analysis ==
832	832
833		-=== 2.10.1  Battery Type ===
	832	+== 3.2 Distance Measurement Characteristics ==
834	834
835		-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:
836	836
	836	+[[image:1654831774373-275.png]]
837	837
838		-The battery related documents as below:
839	839
840		-* (((
841		-[[ 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.
842	842	)))
843		-* (((
844		-[[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.
845	845	)))
846		-* (((
847		-[[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.
848	848	)))
849	849
850		- [[image:image-20220610172400-3.png]]
851	851
	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	+)))
852	852
853	853
854		-=== 2.10.2  Replace the battery ===
	857	+[[image:1654831797521-720.png]]
855	855
856		-(((
857		-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.
858		-)))
859	859
860	860	(((
861		-
	861	+In the formula above, d is the diameter of light spot; D is detecting range; β is the value of the receiving angle of The LiDAR probe, 3.6°. Correspondence between the diameter of light spot and detecting range is given in Table below.
862	862	)))
863	863
	864	+[[image:1654831810009-716.png]]
	865	+
	866	+
864	864	(((
865		-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.
866	866	)))
867	867
868	868
869	869
870		-= 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
	873	+== 3.3 Notice of usage: ==
871	871
	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	+
872	872	(((
873	873	(((
874		-Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
	886	+Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
875	875	)))
876	876	)))
877	877
...	...	@@ -892,7 +892,7 @@
892	892	)))
893	893
894	894	(((
895		-There are two kinds of commands to configure LDDS75, they are:
	907	+There are two kinds of commands to configure LLDS12, they are:
896	896	)))
897	897	)))
898	898
...	...	@@ -933,148 +933,351 @@
933	933
934	934	* (((
935	935	(((
936		-(% style="color:#4f81bd" %)** Commands special design for LDDS75**
	948	+(% style="color:#4f81bd" %)** Commands special design for LLDS12**
937	937	)))
938	938	)))
939	939
940	940	(((
941	941	(((
942		-These commands only valid for LDDS75, as below:
	954	+These commands only valid for LLDS12, as below:
943	943	)))
944	944	)))
945	945
946	946
947	947
948		-== 3.1  Access AT Commands ==
	960	+== 4.1  Set Transmit Interval Time ==
949	949
950		-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.
951	951
952		-[[image:image-20220610172924-4.png||height="483" width="988"]]
	964	+(% style="color:#037691" %)**AT Command: AT+TDC**
953	953
	966	+[[image:image-20220607171554-8.png]]
954	954
955		-Or if you have below board, use below connection:
956	956
	969	+(((
	970	+(% style="color:#037691" %)**Downlink Command: 0x01**
	971	+)))
957	957
958		-[[image:image-20220610172924-5.png]]
	973	+(((
	974	+Format: Command Code (0x01) followed by 3 bytes time value.
	975	+)))
959	959
	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	+)))
960	960
961		-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	+)))
962	962
	988	+== 4.2  Set Interrupt Mode ==
963	963
964		- [[image:image-20220610172924-6.png||height="601" width="860"]]
	990	+Feature, Set Interrupt mode for GPIO_EXIT.
965	965
	992	+(% style="color:#037691" %)**AT Command: AT+INTMOD**
966	966
	994	+[[image:image-20220610105806-2.png]]
967	967
968		-== 3.2  Set Transmit Interval Time ==
969	969
970		-Feature: Change LoRaWAN End Node Transmit Interval.
	997	+(((
	998	+(% style="color:#037691" %)**Downlink Command: 0x06**
	999	+)))
971	971
972		-(% style="color:#037691" %)**AT Command: AT+TDC**
	1001	+(((
	1002	+Format: Command Code (0x06) followed by 3 bytes.
	1003	+)))
973	973
974		-[[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	+)))
975	975
	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	+)))
976	976
	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	+
977	977	(((
978		-(% 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.
979	979	)))
980	980
981	981	(((
	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	+
982	982	(((
983		-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	+)))
984	984
985		-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	+)))
986	986
987		-* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
988		-* 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.
989	989	)))
990	990
	1137	+(((
	1138	+Instruction to use as below:
	1139	+)))
991	991
992		-
	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]],
993	993	)))
	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	+)))
994	994
995		-== 3.3  Set Interrupt Mode ==
	1170	+[[image:image-20220607172042-11.png]]
996	996
997		-Feature, Set Interrupt mode for GPIO_EXIT.
998	998
999		-(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
1000	1000
1001		-[[image:image-20220610174917-9.png]]
	1174	+=== 5.3.1  ​Battery Note ===
1002	1002
	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	+)))
1003	1003
1004		-(% style="color:#037691" %)**Downlink Command: 0x06**
1005	1005
1006		-Format: Command Code (0x06) followed by 3 bytes.
1007	1007
1008		-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 ===
1009	1009
1010		-* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1011		-* 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	+)))
1012	1012
1013		-= 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	+)))
1014	1014
1015		-== 4.1  What is the frequency plan for LDDS75? ==
1016	1016
1017		-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"]]
1018	1018
	1194	+= 6.  Use AT Command =
1019	1019
	1196	+== 6.1  Access AT Commands ==
1020	1020
1021		-== 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.
1022	1022
1023		-You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1024		-When downloading the images, choose the required image file for download. ​
	1200	+[[image:1654593668970-604.png]]
1025	1025
	1202	+**Connection:**
1026	1026
	1204	+(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1027	1027
1028		-== 4.3  Can I use LDDS75 in condensation environment? ==
	1206	+(% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1029	1029
1030		-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**
1031	1031
1032	1032
	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	+)))
1033	1033
1034		-= 5.  Trouble Shooting =
	1216	+(((
	1217	+LLDS12 will output system info once power on as below:
	1218	+)))
	1219	+)))
1035	1035
1036		-== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1037	1037
1038		-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]]
1039	1039
	1224	+Valid AT Command please check [[Configure Device>>||anchor="H4.A0ConfigureLLDS12viaATCommandorLoRaWANDownlink"]].
1040	1040
1041		-== 5.2  AT Command input doesn't work ==
1042	1042
	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	+(((
1043	1043	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	+)))
1044	1044
	1244	+
	1245	+== 8.2  Significant error between the output distant value of LiDAR and actual distance ==
	1246	+
	1247	+
1045	1045	(((
	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	+(((
1046	1046
1047	1047	)))
1048	1048
	1260	+(((
	1261	+(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
	1262	+)))
1049	1049
1050		-= 6.  Order Info =
	1264	+(((
	1265	+Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
	1266	+)))
1051	1051
1052	1052
1053		-Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1054	1054
	1270	+= 9.  Order Info =
1055	1055
1056		-(% style="color:blue" %)**XX**(%%)**: **The default frequency band
1057	1057
1058		-* (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1059		-* (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1060		-* (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1061		-* (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1062		-* (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1063		-* (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1064		-* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1065		-* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
	1273	+Part Number: (% style="color:blue" %)**LLDS12-XX**
1066	1066
1067		-(% style="color:blue" %)**YY**(%%): Battery Option
1068	1068
1069		-* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1070		-* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
	1276	+(% style="color:blue" %)**XX**(%%): The default frequency band
1071	1071
1072		-= 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
1073	1073
	1287	+= 10. ​ Packing Info =
1074	1074
	1289	+
1075	1075	**Package Includes**:
1076	1076
1077		-* LDDS75 LoRaWAN Distance Detection Sensor x 1
	1292	+* LLDS12 LoRaWAN LiDAR Distance Sensor x 1
1078	1078
1079	1079	**Dimension and weight**:
1080	1080
...	...	@@ -1083,7 +1083,7 @@
1083	1083	* Package Size / pcs : cm
1084	1084	* Weight / pcs : g
1085	1085
1086		-= 8.  ​Support =
	1301	+= 11.  ​Support =
1087	1087
1088	1088	* 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.
1089	1089	* 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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