A simple miniature DIY project (toy for my son) using 4 LEDs and ATTiny85
Notes:
- Uses interrupts and timers instead of delays
- Optimizes power consumption
- My first C project in the MCU world (I prefer Assembly)
- Battery holder is surface-mount
TODO in next projects:
- Start using 'power-down' mode to preserve even more power
- Try to add a Joule thief or something similar
Picture:
Schematic:
