Digistump Forums

The Digispark => Digispark (Original) Support => Topic started by: sasaa86 on August 28, 2016, 02:16:44 pm

Title: temprature-depended fan controller.
Post by: sasaa86 on August 28, 2016, 02:16:44 pm

I recently moved and have placed my desk against a build-in-closed.
Since i have adorable kids who love buttons I placed the computer inside the closet and routed a HDMI and USB cable trough a hole in the bottom of the closed.

pretty sweet but the closet heats up like a toaster and I placed two 120mm fans in the top of the case and made some holes on the bottom of the closet.
Works like a champ...     but the noise is killing me slowly.

I wanna use 1 or 2 TMP36 temperature sensors (have them laying around) to sense the need for cooling and effectively use pwm to control the fans.
So I don't go Deaf...

Is it correct to use pins P1 and P4 for the fans (yes 5v for now, will try solid state relays if needed for 12v)
and P2 and P3 for the TMP36's

Title: Re: temprature-depended fan controller.
Post by: drWatson on August 29, 2016, 06:34:19 am

Fans are basically motor, I will suggest using motor drivers connected to digistump to control the fans and their speed.