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Miniature Beeping Circuit Prank
Run A CDROM Brushless Motor With Arduino
Arduino CDROM BLDC Motor Driver, Enhanced Performance
ATtiny85 POV Display
Spinning LED Display
I think you need a resistor between the led and the battery
I was thinking about this..
You also have the 556 dual timer (two 555 in one). So you don't need to use two 555 ;)