hey, thanks a lot for reply ,
currently testing pwm method.
im mosfeting my 12v 0.48A electromagnet with arduinos pwm like so http://bildr.org/2012/03/rfp30n06le-arduino/
I cannot actually see any difference in the magnetic field changing the analogWrite() value.
Im using ferrofluid to check.
How can i make pwm 's value make a bigger difference? darkness surrounds me around the matter.
viva forum