Control Voltage for Analog synth

I'm trying to find out if the arduino can send control voltage which I can send into a CV input on a Make Noise Module. Does anyone know if the arduino is capable of doing that?

Arduino can easily control a digital potmeter which can be used for that.

check my lib for the AD524X chip which uses I2C to communicate with Arduino.

robtillaart: Arduino can easily control a digital potmeter which can be used for that.

check my lib for the AD524X chip which uses I2C to communicate with Arduino.

I'm sorry, I'm a totally noob at Arduino. I'm currently using an Arduino Uno, is it able to make control voltage and will this be compatible with your code?

Thanks for the reply.

You could control the voltage by making a voltage divider by having e.g

5V ----[10K]----X----[AD524X]----GND

the X would be connected to your noise maker.

When changing the resistance of the AD524 the voltage divider changes the voltage e.g from 2.5 volt ... 0 volt

Please read wikipedia about how voltage dividers work.

Hiya rb,

Sure it can. However, you will need to use a bit of external electronics, as CV levels - while often are 0-5v, they can be as much as 0-12v. (A quick look through some of the Make Noise docs shows that 0-5v and 0-8v are used in that system.) So you'll need to be sure that nothing higher than 5 volts touches the arduino.

After that, it's just setting up a sketch that will send the proper signals at the proper time.