A compact, ATtiny85-powered keychain featuring a 0.96-inch OLED screen. This project was created as a token of appreciation for the teachers and technicians who contributed to my growth as an engineer during my bachelor's degree.
Its quite simple:
- ATtiny85 microcontroller
- 0.96-inch OLED screen
- Lipo Battery
- Battery charger IC
- Push buttons
- Switch
- Wires
- Keychain ring
Here's the circuit diagram for the ATtiny85 Gift Box:
Feel free to contribute to this project or reach out with any questions!