The RGB MATRIX uses 3 or 4 pins from the MOTHERBOARD to control 2 HC595 Shift Registers, which in turn, switch Transistors which sink and source current for the 16 Red, Green and Blue LEDs. With some crafty programming, these could show simple animations or even some PWM powered rainbow or lava effects. These can be used as coloured reminder lights: Flash blue to remind you to drink water, or flash red when you need to call your mum… Or you could program them to show you a representation of the temperature or humidity using the SENSOR BOARD, or a coloured sound meter to help you keep your sax playing to a reasonable level. You could also use one for under-glow lighting or to light up the inside of The Cube.

Learn about:

• Shift Registers
• LED Matrices
• RGB LEDs
• PNP and NPN Transistors
• Bypass Capacitors
• Current Limiting Resistors
• Dimming LEDs with PWM
• Bit Masks