A tech solution was required, the remit is:-
- A door opening and closing device that will also hold the door ajar if required.
- The door must be capable of normal use.
- I must be able to operate it from another room (using a web cam to monitor).
- Once dogs are shown how, they need to be able to open door themselves.
Step 1: Design time - parts
- The one I found was from a mobility bath lift.
- A power supply to run it
- Some microswitches to limit the movement..
- High strength magnet for the catch.
- Some diodes For restarting in the oposite direction.
- Door latch catch.
- and something to control it with.