Hello,
can I use the Arduino to output control voltage that is used in modular synthesizers?
I created a analog style Midi sequencer and would like to add CV output, i still have some PWM Ports free on my Arduinio Mega.
thnx a lot
Sure you can, there are many ways to do this.
The simplest way would be to use a lowpass filter on one of your PWM outputs. You could also do other types of DACs, like an R2R resistor ladder. You could also use a digital pot chip, and use each pot as a voltage divider.
I'd suggest the PWM option, because of its simplicity, but you could try different things.
mmh, i dont really got your answer, i would like to send a CV, which is usually a current from 0-8V if i remeber correct to be sent instead
of this midi playnote:
noteOn(channel2[stepnr], note[stepnr], 0x7F); //play note+
how would i line for CV out look?
Im not really into the whole IC/electrical stuff, do
you mean that when I connect a lowpasss filter i can adjust the voltage?
Im not really into the whole IC/electrical stuff, do
you mean that when I connect a lowpasss filter i can adjust the voltage?
Then you can't do it. It is not just software you need but so e hardware as well.
If you connect a low pass filter to a PWM pin you will get a DC voltage depending on the analogue output you write. But you need some amplifiers after the filter to get the voltage right.