PIC 16F1937 Capacitance Touch Switch Keypad Example
Many PIC microcontrollers have built in touch pad capability. The PIC 16F1937 for example has 16 inputs for the capacitance module. These allow for a simple and inexpensive way to add buttons to your project without adding physical switches. Nice thing about these switches is that they will not fail after a certain number of uses like a physical switch will. Our friend Giorgos Lazaridis from PCB Heaven has designed