kinarfi
Well-Known Member
I'm using a 555 timer and I want it to have an off time of about 60 seconds and an on time of about 180 seconds, not too hard to accomplish except it starts in the on state which lasts for 312 seconds as the timing capacitor does it's initial charge from 0 to 66%, off for 67 seconds as it discharges to 33% and the on for 217 seconds as it charges to 66% and continues to repeat at the off for 67 and on for 217 cycle.
I would like some suggestions about how to "jump start" the timing capacitor so that when the switch is turned on, the out put of the 555 goes low shortly after and then continue with the 67 / 217 cycle.
Thanks, Kinarfi
I would like some suggestions about how to "jump start" the timing capacitor so that when the switch is turned on, the out put of the 555 goes low shortly after and then continue with the 67 / 217 cycle.
Thanks, Kinarfi