Read the description again. It’s a common anode LED. To light up red, connect the red pin to ground so the current you’re supplying to the + pin can flow through the red LED. (For example, with Arduino use digitalWrite(redLedPin, LOW);)
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Read the description again. It’s a common anode LED. To light up red, connect the red pin to ground so the current you’re supplying to the + pin can flow through the red LED. (For example, with Arduino use digitalWrite(redLedPin, LOW);)