The set-up process is very simple, and best understood by referring the wiring diagram. If everything goes right,you should see the burning eye of the red LED when there is no object in the safe-zone ...

To build this DIY buzz wire game, you'd need an Arduino Nano, a 9V battery, two LEDs (red and green), a buzzer, a seven-segment LED display, a shift register for the display, and resistors for the ...

Denver Dias, as part of his undergraduate studies, set out to create a new interface to help with environmental awareness for those who cannot see. ... An Arduino polls the ultrasonic sensors and ...