Infinite* colours: Common anode
Use a Common Anode RGB LED - Make:
Using One Resistor on Common Anode RGB LED | CircuitBread
OPEN-SMART 4-PIN 10MM Common Anode RGB LED Display Module Light Emitting Diode for Arduino - AliExpress
Common Cathode RGB LED | Exploring Arduino
Using One Resistor on Common Anode RGB LED | CircuitBread
ARDUINO UNO - Commom Anode RGB LED 3-colour Blink Using Simple Code : 3 Steps - Instructables
Amazon.com: 100pcs 5mm RGB LED Emitting Diode Micro Indicator Red Green Blue Multicolor Common Anode Cathode DIY PCB Circuit Bulb (5mm Diffused Cathode RGB 100pcs) : Industrial & Scientific
L6: RGB LEDs - Physical Computing
Amazon.com: 10PCS 5mm RGB LED Common Cathode Anode Tri-Color 4pin Red Green Blue LED Emitting Diodes f5 RGB Diffused Transparent Lamp (Common Anode Transparent) : Industrial & Scientific
5mm 8mm 10mm RGB LED light Emitting Diode 4pin common Anode Cathode Multicolor | eBay
RGB 10 mm Clear Common Anode LED
10mm RGB LED Emitting Diode Common Anode Cathode Multicolor F10mm RGB DIY Lamp | eBay
Cathode or Anode RGB? What to choose? - General Electronics - Arduino Forum
Arduino RGB LED Guide: Easy Setup and Code Examples
20PCS X Ultra-Bright 10mm 4 PIN Common Anode RGB LED Red Green Blue | eBay
LED - RGB Clear Common Anode - COM-10820 - SparkFun Electronics
10pcs 5MM 4pin Common Anode Diffused RGB Tri-Color Red Green Blue LED – Envistia Mall
External RGB LED - Knurling Sessions 2020 Q4
L6: RGB LEDs - Physical Computing
Arduino RGB LED Tutorial - Circuit Geeks
How do RGB LEDs work? | Random Nerd Tutorials
JavaScript Robotics: LED - RGB (Common Anode) PCA9685 with Johnny-Five
