The Grove Beginner Kit for Arduino® is powered by one Arduino UNO compatible Board (ATmega320p based Seeeduino Lotus) together with 10 additional Grove Arduino sensors all in one piece of the board.
Grove - Ultrasonic Distance Sensor is a sensor that uses ultrasonic waves to measures distance. It can measure from 3cm to 350cm with up to 2mm accuracy.
Done with tedious mono color backlight? This Grove enables you to set the color to whatever you like via the simple and concise Grove interface. It takes I2C as communication method with your microcontroller.