555

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⌛ Control a relay connected device for a period of 1 to 100 seconds using a 555

🚗 LM555 generates a car/bike/bicycle/scooter horn sound which is amplified by LM386

🎹 An electronic piano that uses the 555 to generate eight different piano notes.

music electronics pcb sound piano circuit tone 555 harmonium lm555 ne555 astable-multivibrator

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