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On the back there are 4 metal contacts for the RGB LED ring (one anode and 3 cathodes for each red
For daily use
On/Off switch and STEMMA QT connector for I2C devices
18-pin EYESPI FPC connector for easy interfacing
We also have these covers for standard HDMI
RGB Backlight Negative LCD 20x4 with Extras - RGB on Black Timer On the back there areThis is a fancy upgrade to standard 20x4 LCDs, featuring full color RGB characters on a dark black background. You can change the character display colors to a wide spectrum such as red, green, blue, pink, white, purple, yellow, teal, salmon, and chartreuse, creating a visually striking effect. The LCD is backwards compatible with existing projects; if only the red LED is used, it will appear as red on black. The extra two pins allow control of green
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