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TI-84 Plus with inbuilt MP3 player using an ATtiny85 as a communication bridge.
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C++ 75.8%
TI Program 24.2%
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README.md

TI-84_DFPlayer

TI-84 Plus with inbuilt MP3 player using an ATtiny85 as a communication bridge.

Usage

  • Put the .ino file on your MCU of choice, I used an ATtiny 85.
  • Connect the DFPlayer to the MCU using the Serial port, use pins 0 (RX) and 1 (TX) on the ATtiny 85
  • Connect the calculator to the MCU using its serial connection, use pins 4 (TIP) and 3 (RING) on the ATtiny 85
  • Power the MCU using an external battery or steal power from the calculators batteries, you will need an external power switch and make a voltage devider
  • Put music on the DFPlayers SD card
  • Put DFPlayer.8xp on your calculator to control the DFPlayer
  • Enjoy!