Last modified by Mengting Qiu on 2025/02/26 15:04
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edited by Xiaoling
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58 58  * 4000mAh or 8500mAh Battery for long term use
59 59  
60 60  
61 +
61 61  == 1.3  Specification ==
62 62  
63 63  === 1.3.1  Rated environmental conditions ===
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82 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.**
83 83  
84 84  
85 -[[image:1654852175653-550.png]]
86 +[[image:1654852175653-550.png]](% style="display:none" %) ** **
86 86  
87 87  
88 -(% style="display:none" %) ** **
89 89  
90 -
91 -
92 92  == 1.5 ​ Applications ==
93 93  
94 94  * Horizontal distance measurement
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102 102  * Bottom water level monitoring
103 103  
104 104  
103 +
105 105  == 1.6  Pin mapping and power on ==
106 106  
107 107  
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539 539  
540 540  
541 541  
542 -
543 543  === 2.6.4  AU915-928(AU915) ===
544 544  
545 545  (((
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696 696  
697 697  
698 698  
699 -
700 700  === 2.6.6  KR920-923 (KR920) ===
701 701  
702 702  (((
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769 769  
770 770  
771 771  
772 -
773 773  === 2.6.7  IN865-867 (IN865) ===
774 774  
775 775  (((
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806 806  
807 807  
808 808  
809 -
810 810  == 2.7  LED Indicator ==
811 811  
812 -The LLDS12 has an internal LED which is to show the status of different state.
807 +The LDDS75 has an internal LED which is to show the status of different state.
813 813  
814 -* The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
809 +
810 +* Blink once when device power on.
811 +* The device detects the sensor and flashes 5 times.
812 +* Solid ON for 5 seconds once device successful Join the network.
815 815  * Blink once when device transmit a packet.
816 816  
815 +
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/LLDS12/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/]]
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/]]
821 821  
822 822  
823 823  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
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824 824  
825 825  
826 826  
827 +== 2.9  Mechanical ==
828 +
829 +
830 +[[image:image-20220610172003-1.png]]
831 +
832 +[[image:image-20220610172003-2.png]]
833 +
834 +
835 +== 2.10  Battery Analysis  ==
836 +
837 +=== 2.10.1  Battery Type ===
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.
840 +
841 +
842 +The battery related documents as below:
843 +
844 +* (((
845 +[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
846 +)))
847 +* (((
848 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
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]]
852 +)))
853 +
854 + [[image:image-20220610172400-3.png]]
855 +
856 +
857 +
858 +=== 2.10.2  Replace the battery ===
859 +
860 +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 +
862 +
863 +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)
864 +
865 +
866 +
827 827  = 3.  LiDAR ToF Measurement =
828 828  
829 829  == 3.1 Principle of Distance Measurement ==
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