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

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https://www.electronics-lab.com/project/4-digit-common-cathode-0-5-7-segment-display-module-multiplexed/

This 4 Digit 7 segment display project contains 4 x Common Cathode displays, current limiting resistors or each LED segment, 4 x PNP transistors on each common cathode for multiplexing, etc. This is a very compact project that works with 5V TTL signals but can be optimized for 3.3V operations by reducing current limiting resistors […]

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

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https://www.electronics-lab.com/project/2-digit-common-cathode-0-5-7-segment-display-module-multiplexed/

This 2 Digit 7 segment display project contains 2 x Common Cathode displays, current limiting resistors or each LED segment, 2 x PNP Transistor on each common cathode for multiplexing, etc. This is a very compact project that works with 5V TTL signals but can be optimized for 3.3V operations by reducing current limiting resistors’ […]