Greenmodule

invention

finish line detector

by riptou

2

Published on January 3, 2015

This project detects when a model car reaches the track's finish line by using a sound trigger. The car gently slams into a plastic piece at the end of the track, and the sound trigger turns the circuit on to light up the LED and sound the buzzer.

Credits: ilo

Tags

Modules & Accessories Used (8)

Other Materials Used (1)

  • lego, hotwheels racetrack 1
  • Comments (2)
  • JackANDJude over 3 years ago

    Great!

  • TIBBER over 2 years ago

    That's neat!

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