Next Image 1 x GPIO Common Anode LED A single GPIO pin alternating the two LEDs of a common cathode dual LED. Please link to us if you find the information helpful ...<br>TwitterFacebookPinterestDiggLinkedinRedditStumbleUponTumblr Please link to us if you find the information helpful ...<br>TwitterFacebookPinterestDiggLinkedinRedditStumbleUponTumblr