Paul McCabe] wrote in to let us know about his $25 robot. This small wheeled robot is based on an ESP32 and made using ...

Update 3/9/25: After receiving concerns about the use of the term 'backdoor' to refer to these undocumented commands, we have updated our title and story. Our original story can be found here. The ...

Have you ever imagined building a drone so small it could rest comfortably in the palm of your hand, yet powerful enough to soar through the air with precision, all controlled from your smartphone?