Projects

quiz project

 This project can be used for a quiz with up to 4 contestants (or teams). Each contestant has a trigger push-switch and LED. When a trigger switch is pressed it lights the corresponding LED, sounds the bleeper and prevents the other trigger switches from working - therefore showing which contestant was the first to press their switch. A reset push-switch (operated by the quizmaster) cancels the bleeper and switches off the LED so the circuit is ready for the next question



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Wed, 16/03/2011 - 21:48

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