3 Digit Common Cathode 0.5″ – 7 Segment Display Module (Multiplexed)

24 November, 2021

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This is a 3 Digit 7-segment display project that contains 3 x Common Cathode displays, current limiting resistors or each LED segment, 3 x PNP Transistor on each common cathode for multiplexing etc. The project works with 5V TTL signals but can be optimized for 3.3V operations by reducing the current limiting resistors’ value. A header connector is provided for easy interface to Arduino or other microcontrollers. All inputs are TTL 5V compatible.

3 Digit Common Cathode 0.5″ – 7 Segment Display Module (Multiplexed) – [Link]

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Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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