Hello,
I am not very good with circuits, so i have a question about getting Bela to output from 0-5V to 0-10V (to create a sequencer that controls my Eurorack Oscillator)
I have found an image linked in the muffwiggler forum that shows how to increase arduino digital out(then through dac) to that 0-10V range.
the image is located here: http://i.imgur.com/QCCEyRV.png
In theory using this in arduino or the Bela analog outs is the same (Bela being better due to being analog out and not needing a dac).
The circuit uses a TL072 to increase the voltage.
Pin1 is the output, pin2 is invert Input and pin3 is non-invert input
I know that those TL072 need +V (pin4) and -V (pin8).
Is it ok to connect the +V to the 5v reference and the -V to Ground?
Will this connection make the circuit work as intended?