c++ - Hooking up multiple RGB LEDs while using a minimal number of PWM pins on an Arduino? -


i have anode rgb connected 11, 10, & 9 pwm pins on arduino. add 3 more led's project, don't want take every single pwm pin. there way me hook 4 led's while using minimum number of pins? keep in mind want use 12 resistors 4 leds. oh , leds exact same thing (they red, , turn blue, etc) if helps.

here's how board looks right now:

enter image description here

if me out, awesome!!!! appreciate help!

p.s. attached .fzz file if of edit schematic image, super easy. click here.

if there doing same, connect them parallel, means put second led breadboard right under existing one.

if power consumption wit 4 leds have use transistor amplifier. send youo schematic, have no software draw such. however, using transistor amplify arduino output quite common thing...

hope help!


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