Their sensor uses a four-lead RGB LED, but we suppose a Neopixel ... which measures the intensity of light bouncing back from an object as an Arduino drives the LED through all possible colors ...

Arduino controlled Christmas lights! It all started because [Anx2k ... The LED modules themselves are Adafruit RGB pixel strings. There’s actually three of the LED modules per tile — two ...

Vcc Labs has created a super tiny Raspberry Pi RP2040-powered RGB LED matrix known as Nova ... a variety of options like MicroPython and even Arduino IDE so it can be accessible to both beginners ...