Gravity: URM09 Ultrasonic Distance Sensor (2～500cm, Analog) SF_PIC You will need to purchase

You will need to purchase these components separately

setup time is minimized

Featuring Dual Ball Bearings with a water and dust tight case

The chip supports both I2C and SPI so you can interface with any microcontroller easily

com/datasheets/BreakoutBoards/SparkFun-TLC5940-Breakout-v12

Gravity: URM09 Ultrasonic Distance Sensor (2～500cm, Analog) SF_PIC You will need to purchaseWhat is an Ultrasonic Sensor? An Ultrasonic sensor is a device that can measure the distance to an object by using sound waves. It measures distance by sending out a sound wave at a specific frequency and listening for that sound wave to bounce back. Since it is known that sound travels through air at about 344 m s (1129 ft s), you can take the time for the sound wave to return and multiply it by 344 meters (or 1129 feet) to find the total round trip