Simple Countdown Timer using Padauk MCU
Only supports PMS150G for now, but should be able to run on other Padauk MCUs with modifications.
- 350 μA (Countdown)
- 55 μA (Sleep)
Fall sleep in 2.5s
| Ref | Part # | Description | Purchase | Price |
|---|---|---|---|---|
| IC1 | Padauk PMS150G | MCU | LCSC | $0.04 each |
| SW1, SW2 | TS4548CJ | Push Switch. Others are OK (Check footprint) | LCSC | $0.008 each |
| BZ1 | SFN-1407PA7.6 | Passive Buzzer | LCSC | $0.05 each |
| Battery | CR2032 | 3V Litium Battery Cell | - | $0.1~ each |
| - | Case | 3D printed case | Print by yourself | STL |
| - | Binder Clip | Clip for Battery Case | - | $0.05~ each |
| - | Jigu(Optional) | Cardboard Jigu for Battery Case | Cut by yourself | Data |
| - | Magnet(Optional) | Φ18*5mm Magnet | - | $0.05~ each |
GPLv3
This project is based on:
- Padauk-tone by Kashouryo, MIT License
- pdk-digital-clock by serisman, GPLv3