psmmacker 5 Posted October 20, 2017 (edited) hi was was looking at a raspberry pi gio pins with a single led on the gnd and gio + pin and was thinking we get red leds light up only when we dont use any 5volt power pack plus the led that flashes when you flash the firmware also makes the leds on the panels blink slighty dim wondering i resistors could of been used to take down the red pwm only Resistor for Red: (3.3v – 2.0v) / .02A = 65Ω Resistor for Blue: (3.3v – 3.2v) / .02A = 5Ω Resistor for Green: (3.3v – 3.2v) / .02A = 5Ω https://www.electronics-notes.com/articles/electronic_components/resistors/variable-resistors-potentiometers.php Edited October 20, 2017 by psmmacker New update Share this post Link to post Share on other sites
