Author Options:

3 stage timer for lights Answered

I am looking to add a 3 stage light timer to my shooting range at home and am wondering if anyone would know of something similar to this that has been done or possibly some help setting it up. I have seen that an Arduino may be able to do what I need? I am looking to have 3 lights, red, green, and yellow. I want the red light to be on all the time. One a button/switch is hit, the red light goes off and the green comes on for 2.5 minutes. Then the yellow light comes on for 30 seconds. Then the red comes back on until the button/switch is activated again. Any pointers or suggestions would be very helpful. Thank you.