I think I mentioned this before, either in the discourse or the Patreon community, but I’m considering a design that would use the baby8 method of sending high pin signals through voltage divider pots to generate cv levels. To get from 0-5v to the 0-10v range most modular gear uses for 1v/oct, I hit on the idea of a simple capacitor/diode voltage doubler. Anyone have any predictions based on experience for success or longevity? I’d think that the diodes and pot would protect the microcontroller, but I’m no pro electronic engineer.
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I think it will not work because this approach requires AC signal on input (another not-an-electrical-engineer here, lol).
A tansistor driver looks like a better choice
A voltage shifter such as the CD40109BE is maybe the easiest way to convert the Arduino 0-5V output to a 0-10V output.
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I hope that’s in the same family as the 4069/40106/4040/4017/etc. Those are super-easy to work with and perfect for the voltage range. Thanks for the tip!
Yeah, same family, should work fine with microcontrollers and 4000 and 74HCxx series CMOS ICs.
Another option is to leave the “baby” bit at 5V and use an opamp to scale up the generated CV.
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