ATtiny controlled and LiPo battery powered MP3-Player using the DFPlayerMini-module featuring:
- Micro-SD-card slot,
- battery charging and protection circuit,
- battery level detection,
- OLED display,
- on/off switch,
- volume control,
- 3 push buttons to control the player.
You can directly connect a 3.7V LiPo battery and a 3W/4Ohm speaker to the board.
The firmware is written for the folder-p...
USBasp - USB ISP/TPI programmer for Atmel AVR microcontrollers based on the design by Thomas Fischl.
IR remote control based on an ATtiny13A powered by a CR2032 or LIR2032 coin cell battery. The code is a full implementation of the NEC protocol using only 370 bytes (36%) of program memory.