Ceiling fan control replacement

[csa02221862]

I'm going to gut the control switches in an old ceiling fan to allow arduino control of speed and dimming the light. Anyone done this?

The issue might be a 4 position relay or some other solution.

[gregl]

Ive had this project on "the list" for ages.

My kids have ceiling fans with 3 motor speeds and off...and a light in the center of the fan.
My fans use this capacitor style to control the speed:
https://www.ceilingfansdirect.com.au/shop/ceiling-fan-accessories/speed-control-knob-capacitor-rotary-mech-for-hunter-pacific-fans-2-3-f-w06-018-w06-013-12209

My plans was to use one of these for each room to control.
http://www.itead.cc/rboard.html

I already use this rboard to control my gas heater and its never skipped a beat.
It would just be a case of analysing the switch and wiring it to the relays accordingly, and then in the sketch ensuring the relays are switched on/off as appropriate to the speed required.

For dimming the light, I was thinking of a separate driver board like this
http://www.inmojo.com/store/inmojo-market/item/digital-ac-dimmer-module-lite-v.2/

• On the rboard you can get to D2 for the interrupt for this controller, then use one of the exposed analogue pins for driving the load( via the dimmer module )
• Im pretty sure ive seen cheaper dimmer modules than this one out there too...

What lurks behind your existing fan speed controller currently??

Will be interested and hopefully inspired to get mine done!

Oh.. I also intended to add a motion sensor so the light can be turned off when they leave the bloody light on!

[csa02221862]

I don't know yet haven't opened it yet. But, i think its only a switch to different windings on the motor.