yetmorecode / audio-amplifier

Yamaha Natural Sound Amplifier A-CC5 makeover with an Atmega328P and TPA2016

This repository contains firmware code for my personal Atmega based sound amplifier.

The idea was to replace the my old Yamaha A-CC5 amplifier which consumed huge amounts of electricity even in standby. The code drives an Atmega328P and the below listed peripherals.

See datasheets directory for IC datasheets.

TPA2016 amplifier

• Controlled through I2C

SSD1306 OLED display

• Controlled through I2C

Yamaha A-CC5 frontplate

• Comes with 9 LEDs
• .. 2 push buttons
• .. 3 potentiometers
• .. IR diode
• .. audio jack
• Controlled through single pins / reverse engineered connector

Some LEDs on the frontplate are controlled by an MC14052B analog multiplexer.