Tuesday, March 31, 2015

1.5v LED flasher

This circuit is a LED flasher that run by 1.5v AAA battery.
Flashing speed can change by changing C1.
The circuit consume low current, 20mA when LED be turn ON.

Parts list:
Transistor BC547
Transistor BC557
Resistor 680ohm (2pcs)
Resistor 39 ohm
Resistor 330K
Capacitor 10nF
Capacitor 2uF
Capacitor 470uF
1.5V Battery

1.5v LED flasher
1.5v LED flasher