Pull-up Resistors explained

Pull-up resistors are very common when using microcontrollers (MCUs) or any digital logic device. This tutorial will explain when and where to use pull-up resistors, then we will do a simple calculation to show why pull-ups are important. Suggested Reading Concepts that you should be familiar with before proceeding: What is a circuit? Resistors Voltage, Current, Resistance Digital Logic Input/Output What is ...

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