basically, i need a circuit with 3 bi-color(red, green) LEDs.
Once you turn on the switch, the three LED will turn on. After then, the red LEDs will turn off one by one.
After all the red LEDs off, three green LEDs will turn on and buzzer will ring.
The circuit can be reset by turn off and on again the switch.
i tried using the method
**broken link removed**
but it didnt work although it was close to what i wanted.
i also tried using the 555 timer circuit but i just cant make 3 LED's light up at the start at the same time.
HELP pls.