A small explanation on the project. Im building several circuits to improve the quality of life for my girlfriends 2 rabits in the shed.
I have almost completed a thermostat circuit (currently not working but it will do) from **broken link removed**
this turns on a 12v DC fan, and I plan to use the rpm signal wire to feed a mosfet through a smoothing cap that will turn on a 12v 15w PTC Heating element to take the frost off on a cold night providing the fan is functioning.
All these shed circuits are solar powered so efficiency is key. I'm also planning to make a tunnel from their home to an outside enclosure so they can run about when they want to.
Now I would like to have an electronicly operated slide door to prevent the rabits going outside during the night and in turn stop the wind blowing up the tunnel and into the hutch. Here my problem lies:
Im not sure where to start as I need to make sure both rabits are inside before closing the door! I was thinking 2 infared sensors, named A and B, if A then B are activated it is a rabit going out, if B then A its a rabit comming in. There are 2 rabits btw.
I want to close the door if one of 2 conditions are met, it is beyond a preset time say 8pm or it is cold (coult interface the above thermostat circuit some how to test if it is cold)
I'm thinking this will be way to advanced for me but who knows, you guys might have a very simple idea to lead me in the right direction.
Thanks in advance!
I have almost completed a thermostat circuit (currently not working but it will do) from **broken link removed**
this turns on a 12v DC fan, and I plan to use the rpm signal wire to feed a mosfet through a smoothing cap that will turn on a 12v 15w PTC Heating element to take the frost off on a cold night providing the fan is functioning.
All these shed circuits are solar powered so efficiency is key. I'm also planning to make a tunnel from their home to an outside enclosure so they can run about when they want to.
Now I would like to have an electronicly operated slide door to prevent the rabits going outside during the night and in turn stop the wind blowing up the tunnel and into the hutch. Here my problem lies:
Im not sure where to start as I need to make sure both rabits are inside before closing the door! I was thinking 2 infared sensors, named A and B, if A then B are activated it is a rabit going out, if B then A its a rabit comming in. There are 2 rabits btw.
I want to close the door if one of 2 conditions are met, it is beyond a preset time say 8pm or it is cold (coult interface the above thermostat circuit some how to test if it is cold)
I'm thinking this will be way to advanced for me but who knows, you guys might have a very simple idea to lead me in the right direction.
Thanks in advance!