I need lots of help. I’m trying design a timing circuit.
I’m hard of hearing and many times I drive down the road with my turn signals going. I have put a buzzer on the turn signals and that works fine. However its aggravating to listen to the buzzer when waiting to make a turn or change lanes.
I’m trying to design a circuit that when I active the turn signal it starts a timer and if after (a adjustable time delay let’s say 15 seconds to one minute). If after that delay the turn signal is still on, the buzzer will sound with each flash until I turn off the signal. Turning off the turn signal at any will reset the timer.
I have looked everywhere for a circuit that would work. I have tried many different 555 Timer circuits but couldn't make any of them work.
I want to use the turn signal as the trigger. That signal cycles between about 4 and 9 volts as measured On my VOM. The meter is too slow to get a good voltage reading.
1. Turn signal on starts timer.
2. Timer times out in 15 to 60 seconds adjustable.
3. Timer when times out energizes a relay (12 Volts) and the turn signal is routed to thebuzzer thus each time the turn signal flashes the buzzer sounds.
4. Any time the turn signal is turned off the timer resets.
I’m hard of hearing and many times I drive down the road with my turn signals going. I have put a buzzer on the turn signals and that works fine. However its aggravating to listen to the buzzer when waiting to make a turn or change lanes.
I’m trying to design a circuit that when I active the turn signal it starts a timer and if after (a adjustable time delay let’s say 15 seconds to one minute). If after that delay the turn signal is still on, the buzzer will sound with each flash until I turn off the signal. Turning off the turn signal at any will reset the timer.
I have looked everywhere for a circuit that would work. I have tried many different 555 Timer circuits but couldn't make any of them work.
I want to use the turn signal as the trigger. That signal cycles between about 4 and 9 volts as measured On my VOM. The meter is too slow to get a good voltage reading.
1. Turn signal on starts timer.
2. Timer times out in 15 to 60 seconds adjustable.
3. Timer when times out energizes a relay (12 Volts) and the turn signal is routed to thebuzzer thus each time the turn signal flashes the buzzer sounds.
4. Any time the turn signal is turned off the timer resets.