While Ben is away, Felix and Karen will play... the guitar! Karen uses lasers for the electronic housing while Felix prototypes the microcontroller, audio codec and LCD display to embed in an acoustic guitar. It takes a bit of modding, cutting and even an accident with the screen! Watch the episode above to hear how well the guitar plays, and then head over to the element14 community to talk to The Ben Heck Show team and find the build files for this project.