Posted in Arduino Hacks, LED Hacks, Transportation Hacks Tagged arduino nano, bicycle, hc-05, QI, turn signal, weatherproof ← Programmable Air Makes Robotics A Breeze Headlight Mod For An Audi ...

The $22 kit includes an Arduino-BLE board and 6-pin header that should be fairly broadly applicable for building Arduino-based hardware that can communicate with iOS devices.