Seven segment displays use LEDs arranged in a specific pattern to display numbers and some letters. They can be configured with either a common anode or common cathode connection where the active level is either low or high. Seven segment displays use 8 LEDs arranged in a specific pattern to display numbers from 0 to 9.

1. SEVEN SEGMENT DISPLAY

2. 2 CONFIGURATIONsCommon AnodeCommon Cathode Active LOWActive HIGH

3. LEDsARRANGEMENT

7. 8 SEVEN SEGMENT DISPLAY