Egg Timer

Eggtimer Schematic

Parts List:
R1 = 220K
P1 = 100K
R2 = 47K
U1 = NE555/LM555
R3,R6 = 1K
Led1,Led2 = Leds, red/green
R4,R5 = 220
Buzzer = 6V
R7 = 100
Q1 = 2N3904
C1 = 220uF/16V

This circuit sounds a buzzer after a preset time with P1 using a common 555 timer IC.Excellent to cook your eggs perfectly.
Have fun building or bread-boarding this circuit and don’t hesitate to experiment on it!

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