Connect a 9V battery to Arduino DC barrel jack to power the Arduino and the ultrasonic sensor. Install a separate battery pack into the battery holder to power the motor driver and the motors. Ensure ...

The ultrasonic distance sensor (HC-SR04) is a widely used electronic component for non-contact distance measurement. It operates on the principle of echo-ranging, where it emits an ultrasonic pulse ...

Have you ever wondered how speed guns measure the speed of moving vehicles or how an athlete's sprint speed is recorded? Normally these speed sensors work with radar or laser technology to bounce back ...