Odd behaviour with and without Serial

[camsysca]

If you're still unsure about debouncing, maybe take a look at this current forum thread:

Hardware debounce a switch (2 types)

Hi Everyone I was wondering if some of you could offer some advice on debouncing a switch with hardware. From what I have read online there seems to be a couple ways that are very similar. 1.) Button goes to LOW when pressed 2.) Button goes to HIGH when pressed. I was wondering which is preferred, and if there are pros and cons to each way. [image] Thanks Pete