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 – ...

4×4×4 Led Cube Circuit Diagram. The circuit diagram for a 4 * 4 * 4 LED cube using Arduino Nano involves several components and connections to ensure proper functioning. Here's a step-by-step ...

Circuit topologies for connecting LEDs. Erik Ogren looks at the choice between serial and parallel architectures for connecting LEDs. When designing a handheld device with a colour display using white ...