Category Archives: VC-1

Volume Control 1

VC-1: Volume control for guitar using Arduino

As explained here, here and here, the VC-1 is a volume control for guitar (or bass) that can use a potentiometer, a variable analog signal or a Midi command to change the output volume.

Posted in Arduino, Electronics, Music equipment, VC-1 | 1 Comment

VC-1: New circuit

The first circuit design for the VC-1 was a bit unstable and very dependant on the quality of the control signal. Since the goal here is to control the resistance with a PWM signal from the micro-controller, the control signal … Continue reading

Posted in Electronics, Music equipment, VC-1 | Tagged , | 15 Comments

VC-1: Volume Control Beta

The VC-1 is. On the left, the Silonex Audiohm opto-couplers (OC) with the electronic drivers. it has been described here. On the right, the line-buffer/impedance-controller described there. It works as expected, using two digital pins on the Arduino micro-controller to … Continue reading

Posted in Arduino, Electronics, Music equipment, VC-1 | Tagged , | 1 Comment

VC-1: More impedance control

In the previous post, I described the circuit that I’m using to emulate a potentiometer using a couple of opto-isolator (or opto-couplers?). There is one small problem with the circuit: the input impedance has to be quite low. If you … Continue reading

Posted in Arduino, FCB1010, Pedal board, VC-1 | Tagged | 3 Comments

VC-1: Digital/Midi Volume Control

A user asked if I could design an FCB1010/PU-2 volume control. I love challenges… It took me weeks to get one working properly. The are two main parts to this: the analog side and the digital side. The analog side … Continue reading

Posted in Arduino, FCB1010, Pedal board, PU-2, VC-1 | Tagged | 3 Comments