If you are familiar with button debouncing then you get the idea. He ended up just averaging a few samples at a time, which worked out nicely.

That is exactly what was happening — the Arduino couldn't consistently detect button presses. The code and wiring were correctly designed for detecting button presses and updating the LCD. However, ...

We’re interested in software solutions for debouncing buttons. This seems to be one of the most common forum questions but it can be hard to find answers in the form of reliable code examples.