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Std EditionLM3914 Battery Level Meter

Profile:LM3914 Li-Ion Battery Level Meter

License: GPL 3.0

Published Time:2020-09-14 02:25:29
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Description

A Quad LM3914N Adjustable Li-Ion Battery Level Meter. Note the LED segment is not your usual type, it was reversed so you cannot use normal LED segments without redesigning. Link in BOM for LED segments I used.

Video of project: https://youtu.be/u_-uY8or-Cc

Blog: https://ratti3.blogspot.co.uk

Gerber files and BOM list: https://github.com/Ratti3/LM3914N-Li-Ion-Battery-Meter

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LM3914N Battery Level Meter

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LM3914N Battery Level Meter

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ID Name Designator Footprint Quantity BOM_Supplier Part BOM_Supplier
1 3k R1_4,R1_1,R1_2,R1_3 R0805 4 C126350 LCSC
2 10u C1,C2,C4,C3 CAP-D5.0×F2.0 4 647-UMW1E100MDD Mouser
3 5K VR1_1,VR1_4,VR1_2,VR1_3 RES-ADJ-TH_3296X 4 C111778 LCSC
4 SW_PUSH_DPDT BATT1-2,BATT3-4 SW_PUSH_BUTTON_MINI 2 C318861 LCSC
5 10-segment led bar display BATTERY3,BATTERY1,BATTERY4,BATTERY2 DIP20 4 https://www.aliexpress.com/item/32877938733.html AliExpress
6 PH-2AK BATT3,BATT2,BATT4,BATT1 CONN-TH_PH-2A 4 C8886 LCSC
7 50K VR2_4,VR2_3,VR2_2,VR2_1 RES-ADJ-TH_3296X 4 C111780 LCSC
8 LM3914N U4,U3,U2,U1 DIP-18_L23.0-W6.5-P2.54-LS7.6-BL 4 C9408 LCSC

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