Logic Analyzer

1. Definition

A Logic Analyzer is a tool that captures and displays multiple digital signals.
It helps in analyzing timing, logic states (HIGH/LOW), and communication protocols.

Logic analyzer example

2. Types

  • Standalone Logic Analyzer: Dedicated device with many channels.
  • PC-based Logic Analyzer: USB dongles with software for visualization.

3. Applications

  • Debugging digital communication (UART, SPI, I²C, etc.).
  • Checking timing relationships between signals.
  • Analyzing microcontroller outputs.
  • Detecting glitches or protocol errors.

4. Notes

Unlike an oscilloscope, it only detects logic levels (HIGH/LOW), not analog voltage levels.
Ensure correct ground connection before capturing signals.

Video Explanation

Video coming soon