To supply targeting data for the launcher, an Arduino Uno uses an ultrasonic sensor pair mounted atop a servo. As the servo rotates, the returns from the ultrasonic sensor are plotted on a screen ...

Arduino-Powered Missile System Uses Ultrasound To Aim. ... Uno uses an ultrasonic sensor pair mounted atop a servo. ... printed enclosure is an Arduino Pro Mini, a HC-SR04 ultrasonic sensor, ...

The alarm/target works using a piezoelectric sensor attached to the clock’s housing. When the alarm sounds, if it senses a dart hit by counting the signal pulses generated, it turns off.

Following on from the recent Raspberry Pi Pico Advanced Kit, check out Makeblock’s “mBot Ultimate”, which is described as a 10-in-1 robot building Kit based on the Makeblock platform. It’s a DIY robot ...