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Beginners • Re: Question about second resistor in a pull up

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is that R2 for protecting the GPIO pin from ground? and if so why?
Say something went wrong in software and the GPIO got set to Output instead of Input. Then it got set High. Then someone pressed the switch connecting the 3.3V GPIO to 0V - bye bye GPIO or even Pi.

The resistor is to protect against software/human errors.
That made it more clear, thanks

Statistics: Posted by danilux — Fri May 24, 2024 1:47 am



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