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57	57	* IP66 Waterproof Enclosure
58	58	* 4000mAh or 8500mAh Battery for long term use
59	59
	60	+
60	60	== 1.3  Specification ==
61	61
62	62	=== 1.3.1  Rated environmental conditions ===
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71	71
72	72	=== 1.3.2  Effective measurement range Reference beam pattern ===
73	73
74		-**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**[[image:image-20220610155021-2.png||height="440" width="1189"]]
	75	+**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
75	75
76	76
77	77
78		-**(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.[[image:image-20220610155021-3.png||height="437" width="1192"]]
	79	+[[image:1654852253176-749.png]]
79	79
80		-(% style="display:none" %) (%%)
81	81
	82	+**(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.**
82	82
	84	+
	85	+[[image:1654852175653-550.png]](% style="display:none" %) ** **
	86	+
	87	+
	88	+
83	83	== 1.5 ​ Applications ==
84	84
85	85	* Horizontal distance measurement
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92	92	* Sewer
93	93	* Bottom water level monitoring
94	94
	101	+
95	95	== 1.6  Pin mapping and power on ==
96	96
97	97
...	...	@@ -98,6 +98,7 @@
98	98	[[image:1654847583902-256.png]]
99	99
100	100
	108	+
101	101	= 2.  Configure LDDS75 to connect to LoRaWAN network =
102	102
103	103	== 2.1  How it works ==
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111	111	)))
112	112
113	113
	122	+
114	114	== 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
115	115
116	116	(((
...	...	@@ -231,7 +231,6 @@
231	231	* 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.
232	232
233	233
234		-
235	235	=== 2.3.3  Interrupt Pin ===
236	236
237	237	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.
...	...	@@ -243,6 +243,7 @@
243	243	0x01: Interrupt Uplink Packet.
244	244
245	245
	254	+
246	246	=== 2.3.4  DS18B20 Temperature sensor ===
247	247
248	248	This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
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526	526
527	527
528	528
529		-
530	530	=== 2.6.4  AU915-928(AU915) ===
531	531
532	532	(((
...	...	@@ -683,7 +683,6 @@
683	683
684	684
685	685
686		-
687	687	=== 2.6.6  KR920-923 (KR920) ===
688	688
689	689	(((
...	...	@@ -756,7 +756,6 @@
756	756
757	757
758	758
759		-
760	760	=== 2.6.7  IN865-867 (IN865) ===
761	761
762	762	(((
...	...	@@ -793,18 +793,21 @@
793	793
794	794
795	795
796		-
797	797	== 2.7  LED Indicator ==
798	798
799		-The LLDS12 has an internal LED which is to show the status of different state.
	804	+The LDDS75 has an internal LED which is to show the status of different state.
800	800
801		-* The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
	806	+
	807	+* Blink once when device power on.
	808	+* The device detects the sensor and flashes 5 times.
	809	+* Solid ON for 5 seconds once device successful Join the network.
802	802	* Blink once when device transmit a packet.
803	803
	812	+
804	804	== 2.8  ​Firmware Change Log ==
805	805
806	806
807		-**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/]]
	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/]]
808	808
809	809
810	810	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
...	...	@@ -811,71 +811,58 @@
811	811
812	812
813	813
814		-= 3.  LiDAR ToF Measurement =
	823	+== 2.9  Mechanical ==
815	815
816		-== 3.1 Principle of Distance Measurement ==
817	817
818		-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.
	826	+[[image:image-20220610172003-1.png]]
819	819
820		-[[image:1654831757579-263.png]]
	828	+[[image:image-20220610172003-2.png]]
821	821
822	822
	831	+== 2.10  Battery Analysis ==
823	823
824		-== 3.2 Distance Measurement Characteristics ==
	833	+=== 2.10.1  Battery Type ===
825	825
826		-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:
	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.
827	827
828		-[[image:1654831774373-275.png]]
829	829
	838	+The battery related documents as below:
830	830
831		-(((
832		-(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
	840	+* (((
	841	+[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
833	833	)))
834		-
835		-(((
836		-(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
	843	+* (((
	844	+[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
837	837	)))
838		-
839		-(((
840		-(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
	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]]
841	841	)))
842	842
	850	+ [[image:image-20220610172400-3.png]]
843	843
844		-(((
845		-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:
846		-)))
847	847
848	848
849		-[[image:1654831797521-720.png]]
	854	+=== 2.10.2  Replace the battery ===
850	850
	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	+)))
851	851
852	852	(((
853		-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.
	861	+
854	854	)))
855	855
856		-[[image:1654831810009-716.png]]
857		-
858		-
859	859	(((
860		-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.
	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)
861	861	)))
862	862
863	863
864	864
865		-== 3.3 Notice of usage: ==
	870	+= 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
866	866
867		-Possible invalid /wrong reading for LiDAR ToF tech:
868		-
869		-* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
870		-* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
871		-* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
872		-* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
873		-
874		-= 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
875		-
876	876	(((
877	877	(((
878		-Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
	874	+Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
879	879	)))
880	880	)))
881	881
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896	896	)))
897	897
898	898	(((
899		-There are two kinds of commands to configure LLDS12, they are:
	895	+There are two kinds of commands to configure LDDS75, they are:
900	900	)))
901	901	)))
902	902
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937	937
938	938	* (((
939	939	(((
940		-(% style="color:#4f81bd" %)** Commands special design for LLDS12**
	936	+(% style="color:#4f81bd" %)** Commands special design for LDDS75**
941	941	)))
942	942	)))
943	943
944	944	(((
945	945	(((
946		-These commands only valid for LLDS12, as below:
	942	+These commands only valid for LDDS75, as below:
947	947	)))
948	948	)))
949	949
950	950
951	951
952		-== 4.1  Set Transmit Interval Time ==
	948	+== 3.1  Access AT Commands ==
953	953
954		-Feature: Change LoRaWAN End Node Transmit Interval.
	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.
955	955
956		-(% style="color:#037691" %)**AT Command: AT+TDC**
	952	+[[image:image-20220610172924-4.png||height="483" width="988"]]
957	957
958		-[[image:image-20220607171554-8.png]]
959	959
	955	+Or if you have below board, use below connection:
960	960
961		-(((
962		-(% style="color:#037691" %)**Downlink Command: 0x01**
963		-)))
964	964
965		-(((
966		-Format: Command Code (0x01) followed by 3 bytes time value.
967		-)))
	958	+[[image:image-20220610172924-5.png]]
968	968
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		-)))
972	972
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		-)))
	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:
979	979
980		-== 4.2  Set Interrupt Mode ==
981	981
982		-Feature, Set Interrupt mode for GPIO_EXIT.
	964	+ [[image:image-20220610172924-6.png||height="601" width="860"]]
983	983
984		-(% style="color:#037691" %)**AT Command: AT+INTMOD**
985	985
986		-[[image:image-20220610105806-2.png]]
987	987
	968	+== 3.2  Set Transmit Interval Time ==
988	988
989		-(((
990		-(% style="color:#037691" %)**Downlink Command: 0x06**
991		-)))
	970	+Feature: Change LoRaWAN End Node Transmit Interval.
992	992
	972	+(% style="color:#037691" %)**AT Command: AT+TDC**
	973	+
	974	+[[image:image-20220610173409-7.png]]
	975	+
	976	+
	977	+
	978	+
993	993	(((
994		-Format: Command Code (0x06) followed by 3 bytes.
	980	+(% style="color:#037691" %)**Downlink Command: 0x01**
995	995	)))
996	996
997	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.
	984	+(((
	985	+Format: Command Code (0x01) followed by 3 bytes time value.
	986	+
	987	+If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	988	+
	989	+* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	990	+* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
999	999	)))
1000	1000
1001		-* (((
1002		-Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	993	+
	994	+
1003	1003	)))
1004		-* (((
1005		-Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1006		-)))
1007	1007
1008		-== 4.3  Get Firmware Version Info ==
	997	+== 3.3  Get Firmware Version Info ==
1009	1009
1010	1010	Feature: use downlink to get firmware version.
1011	1011

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