DSP + Bluetooth Audio Receiver + OLED Prototype + Encoder Rotary Selector

DSP, Audio Bluetooth, Smart Control Encoder Headphone Amplifier with OLED Monitor.

Next project, I will make headphone amplifier with control 1 potentiometer encoder to control all digital audio headphone amplifier navigation. The audio input of the headphone amplifier comes from the aux in and the bluetooth audio receiver. The tone control setting using DSP consists of volume, bass, treble settings. middle, gain and mute. While the additional features of the headphone amplifier is the VU display spectrum analyzer and clock.

The program code is complete, just double layer PCB repair and next is the production process.