Fastest Finger First Circuit For Quizzes | 555 Timer Project #17
A tutorial on how to make a fastest finger first circuit which can track the first person to press the trigger. This circuit consists of multiple replicas of a module, each of which can be assigned to a single quiz taker or a team. Each module contains a trigger (We used momentary push button in the video) and an LED indicating whether the team corresponding to this module is the first one to press the trigger.
Monostable arrangement can be coupled to the output of this circuit so that a buzzer beeps for a second after the first press by any quiz taker.
Link to the project page and circuit diagram: https://elonics.org/fastest-finger-fi...
Components Required For Each Module:
555 Timer IC
Momentary Push Button Switch
PN Diode (I used 1N4148)
LED + Series Resistor (270R)
10K Resistor
Components Common For All Modules:
2 x 1K Resistors
LED + Series Resistor (270R)
Momentary Push Button (For resetting)
Breadboard
Few Breadboard Connectors
(5-12)V Power Supply
This tutorial is a part of 18 video series on Electronic Projects created using IC 555: • 555 Timer Projects on Breadboard With Work...
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