.:madworm:.'s photos with the keyword: dimming

Arduino + 'undimmable' LED board

01 Jan 2012 146
And it does work. I'm using a tiny BSS138 MOSFET and the usual PWM output to drive this board. Works perfectly, doesn't heat up. 12V 1.8W

PT4115 lowest setting

02 Jan 2012 207
This time I just soldered a wire to the 'DIM' pin (otherwise floating) and connected that straight to one PWM output.

Obligatory arduino board

02 Jan 2012 152
Read potentiometer and adjust one PWM output accordingly.

PT4115 full blast

02 Jan 2012 161
This time I just soldered a wire to the 'DIM' pin (otherwise floating) and connected that straight to one PWM output.