Chicken Coop - Day 4 - Door Timer Upgrade 

Good idea changing to auto switch- you're right too many moving parts

Could you give more info about the automotive switch ? Link ?

Can you please help me with the wiring diagram for the two auto relays.. thanks

If you ever do this again or for anyone who wants to do this, in the same manor, I suggest you watch this video and use the harness I show. Makes wiring up SOOOO much easier. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE--HLkvI-oJ1A.html However if you want to make this A thousand times easier do this. Using two of the timers shown. Will save you time and effort. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-aYv3-aVQEOY.html And even better to save space. Using only ONE timer ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-7Oykm8wyQtU.html