This signals who was quickest by sounding the buzzer and lighting the appropriate LED. Two people (or two teams) can use the quiz buzzer to show who pressed their button first. When the button is pressed the buzzer sounds and either the red or green light is illuminated to show who was fastest. This project is brilliant for demonstrating a wide range of electronics. It uses push to make & push to https://elecena.pl/product/16395866/quiz-buzzer-project-kit 2020-04-06 https://elecena.pl/product/16395866/quiz-buzzer-project-kit 2020-09-01 https://elecena.pl/product/16395866/quiz-buzzer-project-kit 2021-03-02 https://elecena.pl/product/16395866/quiz-buzzer-project-kit 2025-07-09