Grumpy_Mike:
Sorry. Those diagrams are easier for me to understand, i still struggle a bit with the schematics.
The reed switch is following an arrangement I found earlier and that part is working.
FET TIP120
Basically i am aiming to build the 3rd diagram here: http://bildr.org/2011/03/high-power-control-with-arduino-and-tip120/ but really does not work with the LED driver... looking into RC filter now.
Thank you.
Pwillard:
Indeed. That is it.
Thank you.