Description
This 2 Digit 7 segment display project contains 2 x Common Cathode displays, current limiting resistors or each LED segment, 2 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’ value. Header connector provided for easy interface to Arduino or other microcontrollers. All inputs are compatible with TTL 5V signals.
more information: https://www.electronics-lab.com/project/2-digit-common-cathode-0-5-7-segment-display-module-multiplexed/
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