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Enable the logic 5V on Feather RP2040
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Enable the logic 5V on Feather RP2040

by 3dcadmasters_com on Tue Nov 30, 2021 8:16 pm

Can the new Feather RP2040 board power a few 30mm 5V LED arcade buttons? I know it's a 3.3V logic on the RP2040 and that makes those large LEDs light up quite dimmed in a bright room. Is there a way to jumper on that board so that logic can gain to 5V on the GPIO pins? Please advise. Thank you for your time.

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Re: Enable the logic 5V on Feather RP2040

by dastels on Tue Nov 30, 2021 9:00 pm

The usual approach is to use a transistor to switch 5v to the LED. See https://learn.adafruit.com/transistors-101.

Dave

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