Grove I2C Colour Sensor http://www.seeedstudio.com/depot/Grove-I2C-Color-Sensor-p-854.html?cPath=25_27
Dependents: CapCouleur FindTheColor
Homepage
There's a BluetoothLowEnergy demo around this sensor: http://mbed.org/teams/Bluetooth-Low-Energy/code/BLE_GroveColourSensor/