DIY Lego Mindstorms EV3 custom touch sensor.

Guide on how to make your own touch sensor for Lego Mindstorms EV3. I used a Cherry switch and a standard RJ12 socket. I had to make a custom cable NXT RJ12 to standard RJ12 to make it work. But you can use NXT-plugs all the way if you want. Or you can buy plugs and sockets from: LEGO® is a registered trademark of the LEGO® company.