In this case to turn it on it takes a switch that connects the foot of the led with vcc or voltage source. The difference between the two displays is the common cathode has all the cathodes of the 7 segments connected directly together and the common anode has all the anodes of the 7 segments connected together. 4 Digit 7 Segment Display Common Anode Or Cathode With Or How To Set Up 7 Segment Displays On The Arduino Circuit Basics Triggering Raspberry Pi Hue Leds From Android Ui Pubnub Common cathode cc and common anode ca. Led common cathode vs anode . Identify the anodecathode of leds while referring to any schematic involving leds we sometimes get confused with the identification of the terminals. Sometime the diode symbol creates confusion tooidentifing a leds the cathode and anode of a led is very easy by looking inside. So turning on any particular seg...
