Public Domain
Portable rechargable light to put on a collar for my doggo. Uses some 815 SOT23-6(SC74) chip I salvaged from a blinky light. Worked from 2V - 6V as it had two CR1220 3V batteries in series. Pinout: 1 - NC 2 - VCC 3 - GND 4 - LED- 5 - NC 6 - Button input Repurposing this with a rechargeable 1.37Wh 370mAh Li-Ion battery I got from used SALT vape. Charging chip: MCP73831. Home etched board, designed to fit inside a plastic box I found.
| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | HDR-F-2.54_1x2 | BAT,PWR | HDR-F-2.54_1X2 | 2 |
| 2 | 0.1u | C1,C2,C3 | C0603 | 3 |
| 3 | K4-6×6_SMD | KEY1 | KEY-SMD_4P-L6.0-W6.0-P3.90-LS10.0 | 1 |
| 4 | LED-0805_R | LED1,LED3,LED4,LED5 | LED0805_RED | 4 |
| 5 | LED-0805_G | LED2 | LED0805_GREEN | 1 |
| 6 | 1k | R1,R2 | R0603 | 2 |
| 7 | 3k | R3 | R0603 | 1 |
| 8 | 200 | R4 | R0603 | 1 |
| 9 | 100 | R5 | R0603 | 1 |
| 10 | MCP73831OT | U1 | SOT23-5L | 1 |
| 11 | IC815 | U2 | SOT23-6 | 1 |
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