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57	57	* IP66 Waterproof Enclosure
58	58	* 4000mAh or 8500mAh Battery for long term use
59	59
	60	+
	61	+
60	60	== 1.3  Specification ==
61	61
62	62	=== 1.3.1  Rated environmental conditions ===
...	...	@@ -97,6 +97,8 @@
97	97	* Sewer
98	98	* Bottom water level monitoring
99	99
	102	+
	103	+
100	100	== 1.6  Pin mapping and power on ==
101	101
102	102
...	...	@@ -237,6 +237,8 @@
237	237	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
238	238	* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
239	239
	244	+
	245	+
240	240	=== 2.3.3  Interrupt Pin ===
241	241
242	242	This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H4.2A0SetInterruptMode"]] for the hardware and software set up.
...	...	@@ -798,18 +798,15 @@
798	798
799	799	== 2.7  LED Indicator ==
800	800
801		-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.
802	802
803		-
804		-* Blink once when device power on.
805		-* The device detects the sensor and flashes 5 times.
806		-* 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.
807	807	* Blink once when device transmit a packet.
808	808
809	809	== 2.8  ​Firmware Change Log ==
810	810
811	811
812		-**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
	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/]]
813	813
814	814
815	815	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
...	...	@@ -816,58 +816,71 @@
816	816
817	817
818	818
819		-== 2.9  Mechanical ==
	822	+= 3.  LiDAR ToF Measurement =
820	820
	824	+== 3.1 Principle of Distance Measurement ==
821	821
822		-[[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.
823	823
824		-[[image:image-20220610172003-2.png]]
	828	+[[image:1654831757579-263.png]]
825	825
826	826
827		-== 2.10  Battery Analysis ==
828	828
829		-=== 2.10.1  Battery Type ===
	832	+== 3.2 Distance Measurement Characteristics ==
830	830
831		-The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
	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:
832	832
	836	+[[image:1654831774373-275.png]]
833	833
834		-The battery related documents as below:
835	835
836		-* (((
837		-[[ 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.
838	838	)))
839		-* (((
840		-[[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.
841	841	)))
842		-* (((
843		-[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
	846	+
	847	+(((
	848	+(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
844	844	)))
845	845
846		- [[image:image-20220610172400-3.png]]
847	847
	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	+)))
848	848
849	849
850		-=== 2.10.2  Replace the battery ===
	857	+[[image:1654831797521-720.png]]
851	851
852		-(((
853		-You can change the battery in the LDDS75.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board.
854		-)))
855	855
856	856	(((
857		-
	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.
858	858	)))
859	859
	864	+[[image:1654831810009-716.png]]
	865	+
	866	+
860	860	(((
861		-The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can’t find this pack locally, they can find ER18505 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
	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.
862	862	)))
863	863
864	864
865	865
866		-= 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
	873	+== 3.3 Notice of usage: ==
867	867
	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	+
868	868	(((
869	869	(((
870		-Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
	886	+Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
871	871	)))
872	872	)))
873	873
...	...	@@ -888,7 +888,7 @@
888	888	)))
889	889
890	890	(((
891		-There are two kinds of commands to configure LDDS75, they are:
	907	+There are two kinds of commands to configure LLDS12, they are:
892	892	)))
893	893	)))
894	894
...	...	@@ -929,84 +929,156 @@
929	929
930	930	* (((
931	931	(((
932		-(% style="color:#4f81bd" %)** Commands special design for LDDS75**
	948	+(% style="color:#4f81bd" %)** Commands special design for LLDS12**
933	933	)))
934	934	)))
935	935
936	936	(((
937	937	(((
938		-These commands only valid for LDDS75, as below:
	954	+These commands only valid for LLDS12, as below:
939	939	)))
940	940	)))
941	941
942	942
943	943
944		-== 3.1  Access AT Commands ==
	960	+== 4.1  Set Transmit Interval Time ==
945	945
946		-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.
947	947
948		-[[image:image-20220610172924-4.png||height="483" width="988"]]
	964	+(% style="color:#037691" %)**AT Command: AT+TDC**
949	949
	966	+[[image:image-20220607171554-8.png]]
950	950
951		-Or if you have below board, use below connection:
952	952
	969	+(((
	970	+(% style="color:#037691" %)**Downlink Command: 0x01**
	971	+)))
953	953
954		-[[image:image-20220610172924-5.png]]
	973	+(((
	974	+Format: Command Code (0x01) followed by 3 bytes time value.
	975	+)))
955	955
	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	+)))
956	956
957		-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	+)))
958	958
	988	+== 4.2  Set Interrupt Mode ==
959	959
960		- [[image:image-20220610172924-6.png||height="601" width="860"]]
	990	+Feature, Set Interrupt mode for GPIO_EXIT.
961	961
	992	+(% style="color:#037691" %)**AT Command: AT+INTMOD**
962	962
	994	+[[image:image-20220610105806-2.png]]
963	963
964		-== 3.2  Set Transmit Interval Time ==
965	965
966		-Feature: Change LoRaWAN End Node Transmit Interval.
	997	+(((
	998	+(% style="color:#037691" %)**Downlink Command: 0x06**
	999	+)))
967	967
968		-(% style="color:#037691" %)**AT Command: AT+TDC**
969		-
970		-[[image:image-20220610173409-7.png]]
971		-
972		-
973	973	(((
974		-(% style="color:#037691" %)**Downlink Command: 0x01**
	1002	+Format: Command Code (0x06) followed by 3 bytes.
975	975	)))
976	976
977	977	(((
978		-(((
979		-Format: Command Code (0x01) followed by 3 bytes time value.
	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	+)))
980	980
981		-If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
982		-
983		-* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
984		-* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1009	+* (((
	1010	+Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
985	985	)))
	1012	+* (((
	1013	+Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	1014	+)))
986	986
	1016	+== 4.3  Get Firmware Version Info ==
987	987
988		-
	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
989	989	)))
990	990
991		-== 3.3  Set Interrupt Mode ==
	1048	+**Software Type**: Always 0x03 for LLDS12
992	992
993		-Feature, Set Interrupt mode for GPIO_EXIT.
994	994
995		-(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
	1051	+**Frequency Band**:
996	996
997		-[[image:image-20220610105907-1.png]]
	1053	+*0x01: EU868
998	998
	1055	+*0x02: US915
999	999
1000		-(% style="color:#037691" %)**Downlink Command: 0x06**
	1057	+*0x03: IN865
1001	1001
1002		-Format: Command Code (0x06) followed by 3 bytes.
	1059	+*0x04: AU915
1003	1003
1004		-This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1061	+*0x05: KZ865
1005	1005
1006		-* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1007		-* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	1063	+*0x06: RU864
1008	1008
	1065	+*0x07: AS923
1009	1009
	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	+
1010	1010	= 5.  Battery & How to replace =
1011	1011
1012	1012	== 5.1  Battery Type ==

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