© 2022 EasyEDA Some rights reserved
1.Easy to use and quick to get started
2.The process supports design scales of 300 devices or 1000 pads
3.Supports simple circuit simulation
4.For students, teachers, creators
1.Brand new interactions and interfaces
2.Smooth support for design sizes of over 30,000 devices or 100,000 pads
3.More rigorous design constraints, more standardized processes
4.For enterprises, more professional users
Std EditionLM3914 Battery Level Meter
Profile:LM3914 Li-Ion Battery Level Meter
License: GPL 3.0
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
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 |
Unfold