You can control the brightness of these LEDs using variable resistors VR1, VR2 and VR3 respectively. Parts Needed. Arduino UNO board – 1 ; 5mm LEDs Red, Green, Blue – each 1 ; 100K Variable resistor – ...

You can use an external one or use the one soldered on the board (pin 13). Turn ON an LED Sketch This is a very simple arduino project where a led is turned on by setting the pin 13 as output, then ...

Posted in LED Hacks, Microcontrollers Tagged Arduino IDE, ESP, LED driver, LOHAS, MY9231, Smart Bulb Ammo Can Holds A 14,000 Lumen LED Flashlight March 28, 2019 by Tom Nardi 10 Comments ...

Sure, the physical build itself looks great, but it’s what [Michael] did with the firmware that impresses us the most. He’s using an Arduino Mega to drive the 7x7x7 cube and manages to … ...