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Hayes AT command set
TL;DR
The Hayes AT command set, developed in 1981, is a command language for modems that standardizes operations like dialing and connection management. It has influenced modem communication protocols widely used today.
✦ Why It Matters
Consider using the Hayes AT command set for modem-related projects to ensure compatibility and standardization.
Key Takeaways
- Understand the basic structure of the Hayes AT command set.
- Utilize the escape sequence for switching between data and command modes.
- Be aware of proprietary commands from different manufacturers.
- Implement error handling for compatibility issues with various modems.
How It Works
The Hayes AT command set allows modems to interpret commands sent from a computer by switching between data mode and command mode. Users can send an escape sequence of three plus signs followed by a pause to switch modes, enabling commands for dialing and configuration.