Controller for a 6 input, 2 output, digital volume preamp.

This is a controller for a preamp. The preamp has 6 inputs and 2 outputs that are switched by relays. The relays are controlled by the shift register. The preamp also uses a digital volume control. (Not shown on this layout.) The the active input and output is indicated by LEDs as is the current volume level. Three additional LEDs indicate input / output selector status and mute. The input, output, and volume are controlled by rotary encoders.

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openeco 3 months, 3 weeks ago

Hi, I'm very interested in this project. Could you share the schematic and the code...? Many Thanks, openeco