Participants will assemble the Mixtape NEO, a lo-fi 8Bit synthesizer based on the Arduino-compatible ATTINY85, featuring 2 Pots, 2 Buttons and 8 addressable RGB Neo-pixels. The key feature of the new 8Bit Mixtape NEO is the easiness of uploading new codes using an audio communication protocol, just by playing a .wav sound file from your computer, smartphone or walkman.