Staring at a screen can be a drag (and may lead to being run over while
walking or biking!) so we developed the LiteBeam to communicate the AirBeam measurements using LEDs. The LiteBeam uses a IOIO microcontroller connected to the AirCasting app over Bluetooth to illuminate LEDs in response to the sensor measurements received by the AirCasting app: green for low intensity, then yellow, then orange, and red for high intensity.
Links to parts are provided for convenience only; they are not an endorsement of the vendor. Most of these parts are available from multiple vendors. Note that not all Bluetooth dongles are compatible with the IOIO.