PIC Microcontroller Touch Keypad
Check out this cool PIC Microcontroller Touch Keypad by Mondo Technology. I love the simplicity of button press detection. There are lots of industrial buttons that do this exact thing but they are very costly. “This board layout was created using the SOIC version of a PIC16F627A without drawing the usual schematic first. Most of the part values are etched on the Layout. The SIP resistor packs I used are