11 Oct: Ultrasonic Ranging Module, SN-HC-SR04

Recently Cytron is carrying another new ultrasonic sensor in stock which is called HC-SR04. Like others ultrasonic sensor, HC-SR04 uses sonar to determine distance to an object like bats or dolphins do. This sensor require an digital output (Trig) and input (Echo) pin to use it. We will show you the performance of this sensor by using Arduino. In order to make it easier, the HC-SR04 library in Arduino is also provided!