Seems like this would work for CV input from modular to Axoloti

[blackmountain]

I got excited when I found the resources on electronics that are available online. I was looking at the SimplyElectronics channel on YouTube and he uses this brilliant circuit design and simulation app, www.everycircuit.com

Someone has designed a circuit for stepping from CV 5v to -5v to Arduino voltage. Its similar to some of the suggested circuits that have been shared here using a voltage divider and a diode, but adds an op amp for buffering.

I'm no hardware guy, but have always had an interest in electronics so I'm going to drill into this a bit further as I like it as a hobby. All thanks to mum and dad who bought me my first electronics kit at the age of 11. I have a bit of catching up to do.

EveryCircuit - CV to Arduino

[blackmountain]

Just realised this is exactly the same circuit as in the pin out user guide !

Official Pin Outs revised (work in progress)

I'll be working on revising this post here, I was going to write it in a text document but realized it would be easier for me to get all the images if I just made it here. I was looking for a a save feature so I could wait to post until complete but could not find it. So please note this is all a work in progress and NEEDS further revision/information. GPIO Overview [image] VDD versus VDDA versus VDDC VDD is the digital 3.3V supply, use it to power external logic VDDA is the analog refe…