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HIGH/LOW

What is a HIGH/LOW?

HIGH/LOW refers to the two logic states in digital electronics, representing binary values 1 and 0 respectively. HIGH typically corresponds to a voltage level near the supply voltage (like 5V or 3.3V), while LOW corresponds to a voltage level near ground (0V). These states form the foundation of all digital communication and processing, allowing microcontrollers, logic gates, and other digital devices to represent and manipulate binary data.

Related Terms

Logic Level

A logic level is a specific voltage range that represents digital states (typically HIGH/1 and LOW/0) in digital circuits and microcontrollers. Common logic levels include 5V logic (where HIGH is ~5V and LOW is ~0V) and 3.3V logic (where HIGH is ~3.3V and LOW is ~0V). Logic levels determine voltage compatibility between different digital components and must match for proper communication between devices. Understanding logic levels is crucial when interfacing sensors, microcontrollers, and other digital components to prevent damage and ensure reliable operation.