This is a common LED RGB variable color lamp bead module, in which F5 fog full-color RGB common cathode LED are used as the components. When using it, connect the RGB module to the PWM port of the microcontroller, and connect "-" to GND.
There are red, green and blue lights in the LED lamp bead components. The principle is that the ratio of the three colors can be adjusted through PWM values, so that different colors of light can be displayed on the LED. In theory, all colors of light can be simulated by adjusting the ratio of the three colors.
The sensor comes with a JST PA SMT 4-Pin horizontal sticker and a buckle socket. Also, a JST PA to DuPont female 4-Pin single-head wire is offered to facilitate wiring. Length: 210mm, buckle attached.

SPECIFICATIONS
Module Specifications:
Operating Voltage: DC 3.3-5V
Communication Interface: JST PA SMT 4-Pin interface
Dimensions: 22mm * 29.88mm * 11mm
Mounting Hole Size: 3mm
Installation Hole Spacing: 15mm
Wire Specifications:
Withstand Voltage: less than 50V
Withstand Current: less than 1000MA
Length: 21CM
Wire Sequence: Black-negative power supply, Red-positive power supply, Green-SDA, Blue-SDA

PACKAGE CONTENT
1 * LED RGB Variable Color Lamp Bead Module
1 * JST to DuPont 4P Wire