Hello everyone,
I’ve purchased an abandoned VPIN project and am starting from scratch on my first VPin build.
I have a Pinscape KL25Z board along with an expansion board (see photo). I’ve been gathering information and doing quite a bit of reading.

My first question concerns the power supply for the controller. According to the documentation, it can operate on 3.3V, 5V, or 5V via USB.
Which voltages do I actually need? The project came with separate 3.3V and 5V power supply units.
A quick test using the Pinscape configuration tool with the board connected via USB was successful.
Now, I’d like to test some buttons. Is it correct that the switch signals from the (button) inputs should be connected to a common GND (ground) point?
I want to make sure I don’t damage anything.
Best regards,
Andreas



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