Hi Folks
I need to build a rugged timer board for traffic lights which will be used to run archery compititions. I thought I would use 555`s but its been a long time since I have done anything like this. Hooking up relays ect to the timer is not a prob but building it is.
The Sequence is as follows.
Press start.
Horn sounds twice.
Red lights on for 10 sec or 20 sec(needs to be switchable)
Horn sounds once.
Green lights on for 3.5 minutes or 2.5 minutes (needs to be switchable).
Amber on for 30 sec.
Red lights on at end.
When the system is turned on the red lights should be on and if a reset/alarm button is pressed the lights should go to red.
I have most of the hardware now and I just need to make up the timing board so if anyone has the time to help me with this it would be a great help.
I need to build a rugged timer board for traffic lights which will be used to run archery compititions. I thought I would use 555`s but its been a long time since I have done anything like this. Hooking up relays ect to the timer is not a prob but building it is.
The Sequence is as follows.
Press start.
Horn sounds twice.
Red lights on for 10 sec or 20 sec(needs to be switchable)
Horn sounds once.
Green lights on for 3.5 minutes or 2.5 minutes (needs to be switchable).
Amber on for 30 sec.
Red lights on at end.
When the system is turned on the red lights should be on and if a reset/alarm button is pressed the lights should go to red.
I have most of the hardware now and I just need to make up the timing board so if anyone has the time to help me with this it would be a great help.
