Six-way buzzer

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Six-way buzzer [Copy link]

Hello everyone, I'm in urgent need of a circuit design for a six-way buzzer, I hope you can help me!!! Requirements: Design and make a digital buzzer that can accommodate six groups of contestants, each group is equipped with a buzzer button for the contestants to use; the circuit has the identification and latching function of the first buzzer signal, after the host resets the system and issues a buzzer command, if the contestant presses the buzzer switch, the indicator light of the group will light up and the group display circuit will display the group of the contestant, and the speaker will make a sound, at this time the circuit should have a self-locking function, so that the buzzer switch of other groups will not work. Set up a scoring circuit and a foul circuit.