Member CharlesC started a topic today in using a surprisingly cheap wireless $3.99 PWM LED controller for a dew heater. I currently use a similarly priced LED dimmer switch to drive a 12V fan behind the mirror on my 10" dob.
I started to ask questions on the applicability of that controller on fans and decided instead to start a new thread on wireless fan control.
I would love it if I could turn my fan up with a remote in my pocket for rapid mirror cooling or dew control (since the breeze through the OTA really does usually clear dew off my secondary) . I could also get rid of all wires coming off my dob since this is the only electrical item on it.
If this item shared by CharlesC has a fast enough frequency I suspect it could do the trick at 25, 50, 75 and 100% fan speeds.
Thoughts? Warnings? Other successful methods, anyone?
Edited by jtsenghas, 19 October 2018 - 05:45 PM.