I designed this board to be able to panel mount two of these cool 12mm illuminated tactile buttons. These are really cool push buttons; you can control the LED independent of the tactile action. Unfortunately, these are really hard to use on a breadboard or any 0.1" (2.54mm) perforated prototyping board. This board has two screw holes on both sides that fit M3 screws. Standoffs are not included.

This module uses a MCP23008 I2C expander to read the tactile push buttons and independently control the LED. The MCP23008 works across a voltage range, so this board will work at 3V and 5V. This potentially saves you four GPIO pins.

Please make sure you choose the additional illuminated tactile buttons.

Note: color of circuit board varies.