[Shop-talk] Looking to automate fan with remote pressure pad switch

[Steve Hammatt, Mount Vernon WA USA]

I’m looking to remotely control an existing fan.
The fan is currently manually controlled by a 
normal 110V 15A wall on-off switch.  I’m looking 
for hardware that can replace the existing switch 
and operate the fan for a pre-set (hopefully adjustable) 
length of time.  The new timer hardware would be wirelessly 
controlled by a remote pressure pad.

Here’s the scenario:
Cat comes into the laundry room (where the cat box is 
located) and enters the cat box.  The pressure pad would 
be outside the cat box entry and the cat would activate the 
pressure switch in the entry pad and a wireless signal would 
be transmitted to the 110V power switch located in the existing 
wall mounted gang box.  In my case, the entry pad is very near an 
existing outlet, so it could be 110V. The fan would automatically 
come on for a pre-determined amount of time, then automatically 
turn off.The cat exiting the cat box would have no affect on the fan 
since it’s already running.

Any clever ideas from our Shop-Talk members?  The assembly of 
everything involved would take place in the shop, so the mandatory 
shop application is thereby satisfied.
Thanks.

Steve Hammatt
Mount Vernon WA USA
www.leatherplates.com


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