Reverse-engineered the IR protocol between Syma toy helicopters and their controllers using Arduino, enabling cross-control of multiple choppers or repurposing the controller for other devices.

Decoded the MagiQuest IR wand protocol on Arduino — extracting each wand’s unique serial number and a swish-magnitude field — then built an IrSonicWand emulator that learns and replays any wand’s identity, with sound.