Help with capacitive sensing

What started out as a fun final project of the semester has become not so fun. Basically I need to change what was a button on a circuit board to be a capacitive sensor. I've transported the button from the circuit board to my breadboard, but now I just need to get it to be a capacitive sensor and that's where I keep getting stuck. Any suggestions??

See this here.

I know to get a capacitive sensor to work, and I've got one working on its own on a LED, but when it comes to replacing the current button with a capacitive sensor I can't get it to work.

Usually if by a button you mean a push button, you can use arduino and a transistor to "push" it. Have you googled "arduino transistor button" keywords? It requires a simple circuit and a few lines of code. Plenty of tutorials if you google.

Post your code of a working capacitive circuit and the button replacement that doesn't.