Involving some IR LEDs, perhaps a bit ... [Blake] improved sensor precision and motor control, turning a bumpy ride into a smooth glide. The IR sensor array, which on the palm-sized vehicle ...

I made this Arduino project that allows to turn ON and OFF LEDs using a cheap IR remote control as a preparation for the ... else { digitalWrite(led4, HIGH); itsONled[4] = 1; } break; The array ...

Unlike many similar interactive LED matrix displays that are digital in nature (because it’s a lot easier), this design is pure analog, using many, many op-amps. A custom PCB houses a 4×4 array ...