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...
Reset the RSTDISBL fuse on ATTiny85 mini USB dev board using HVSP with AVR Dragon programmer. Some boards have RSTDISBL set to enable GPIO on P5. When RSTDISBL is set, you cannot reset the fuse using normal ISP. A common scenario is when you try to change a USBtinyISP board back to normal usage.
ATtiny85 controlled candle simulation using NeoPixels, LDR light sensor and IR remote receiver.