Found this which seems pretty cool and uses very inexpensive components: https://www.instructables.com/How-to-Build-a-Battebot-With-Cardboard-and-Arduino/ https

Found this which seems pretty cool and uses very inexpensive components: https://www.instructables.com/How-to-Build-a-Battebot-With-Cardboard-and-Arduino/ https://www.instructables.com/How-to-Build-a-Battebot-With-C...