555 timer for automobille indicator

[Goatman]

well, i've just bought my first car. 75 honda civic. the left indicator is broketed so i've decided to redesign both. i'm planning to use a 50% duty cycle 555 timer circut, the one with the 2 diodes. that will drive a relay. which will drive the lights.
the timer needs to be 2 Hz, can that be done?

 

[Anotherforummember]

YES.  51% duty suffices if you so wish to not use extra diodes.  Either way no big deal.  Use a standard Astable circuit with a larger than normal capacitor and high resistor value.  F = 1.44/((R1 +2R2)C1).  R2 10x larger than R1 for 50.xxx% duty.

 

[Goatman]

just read up the 555 ic can go waaaay below 1Hz.
I'll design the circuit and show u guys soon!