The iCADE works as a Bluetooth keyboard. Each key and joystick direction (up, down, left, right) sends one letter when pushed and a different letter when releas

The iCADE works as a Bluetooth keyboard. Each key and joystick direction (up, down, left, right) sends one letter when pushed and a different letter when released. The iControlpad can also work in this mode. I don't know if there's a way to support analog controls over Bluetooth.