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Topic: reading CV  from volume pedal (Read 838 times) previous topic - next topic

gorgon

Hi!

Does anyone know how to read CV (control voltage) from a expression/volume pedal (ex behringer fcv100)? Connecting a jack cable to the output of the pedal and then the tip to analog in and the ring to 3/5v on the arduino gives no result.

This is what the specs sheet on the pedal says:
input/output:
1/4" TS connectors, unbalanced
Tip: Supply voltage from unit/instrument
to be controlled (Impedance: 50 k[ch937])
Ring: Slider pick-up (control voltage
dependend on pedal position
(Impedance: 0...50 k[ch937])

Sorry if this is very basic - I couldnt find any info on it when searching.. Any help is highly appreciated!

Thanks!
Martin

MikMo

You should connect the ring to ground on Arduino.

gorgon

thanks for the quick reply MikMo.

so,
tip -> analog in
ring -> ground

does not give me anything. I doubt that the pedal sends out any voltage.

Franklin

tip = 5v (from arduino)
ring = analog pin
Stephen

gorgon

Quote
tip = 5v (from arduino)
ring = analog pin


this does also not work, it only gives the value 0.

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