I’ve got a door on my chook house that opens and closes using a linear actuator. The actuator changes between in and out when the polarity is switched on the two input wires. (12v DC)
I currently drive this using a simple "on-off" light switch which drives a DPDT relay to do the polarity reversal.
I’d like to add a level of automation to this to open and close the door based on a timer. I’ve got a 12v electronic timer that will drive a relay. I’ll set this to open at 7:30am and close at 9:30pm.
When the (existing) manual switch is toggled, I want the door to open and close.
At the open and close time I want the door to open and close.
However if I want to change the door position during the day the manual override should still work and…. If the manual override is used (say to close and open) come 9:30pm I want the door to close and then open again at 7:30am.
Can anyone suggest how I might go about the switch configuration? I can’t for the life of me figure this out?
Thanks Dave
I currently drive this using a simple "on-off" light switch which drives a DPDT relay to do the polarity reversal.
I’d like to add a level of automation to this to open and close the door based on a timer. I’ve got a 12v electronic timer that will drive a relay. I’ll set this to open at 7:30am and close at 9:30pm.
When the (existing) manual switch is toggled, I want the door to open and close.
At the open and close time I want the door to open and close.
However if I want to change the door position during the day the manual override should still work and…. If the manual override is used (say to close and open) come 9:30pm I want the door to close and then open again at 7:30am.
Can anyone suggest how I might go about the switch configuration? I can’t for the life of me figure this out?
Thanks Dave