I am really interested in the possibility for the Harvst Watermate control unit has to connect an automatic door opener to my small balcony greenhouse ( 100cm tall x 42cm deep x 78cm wide ). I would like to open the two front doors and maybe as well the top on warmer days. Maybe a fan too? Could you guide me on how this could become a reality?
Hi Michael
Do you have a door opener mechanism in mind? If it's 12V it would power directly off the Watermate, if it's 240V it's still possible but will be a bit more technical.
Chris
Thank you very much for your reply. Not any specific mechanism in mind. There are various automatic window openers that open a window with a chain or there are linear actuators with 12V.
Would it mean I could turn on and off ( open and close ) the mechanism via the Harvst control unit?
In theory that looks OK, in some respects:
- The 12V / 2.5A power consumption is OK.
- It has a limit switch to stop the motor when it reaches full extension ( so you could run the control from the Harvst box for 30 seconds, say )
However I can't see a way for you to then close it again, I assume the current to the motor would need to be reversed, which would need a motor driver circuit.
I am really interested in the possibility for the Harvst Watermate control unit has to connect an automatic door opener to my small balcony greenhouse ( 100cm tall x 42cm deep x 78cm wide ). I would like to open the two front doors and maybe as well the top on warmer days. Maybe a fan too? Could you guide me on how this could become a reality?
Many thanks
Michael
Do you have a door opener mechanism in mind? If it's 12V it would power directly off the Watermate, if it's 240V it's still possible but will be a bit more technical.
Chris
Thank you very much for your reply. Not any specific mechanism in mind. There are various automatic window openers that open a window with a chain or there are linear actuators with 12V.
Would it mean I could turn on and off ( open and close ) the mechanism via the Harvst control unit?
I am thinking of a door actuator like this one.
link
I would need ideally 3-4 actuators connected to the Harvst control unit
Thanks and best regards
Michael
In theory that looks OK, in some respects:
- The 12V / 2.5A power consumption is OK.
- It has a limit switch to stop the motor when it reaches full extension ( so you could run the control from the Harvst box for 30 seconds, say )
However I can't see a way for you to then close it again, I assume the current to the motor would need to be reversed, which would need a motor driver circuit.
Chris
Thank you for your reply and expertise. Perhaps something similar to this would work?link
Kind regards,
Michael