https://github.com/johntalton/mcp23

8/16-bit I/O Expander (mcp23) with advanced features
https://github.com/johntalton/mcp23

chip expander gpio i2c io mcp23008 mcp23017 pin

Last synced: about 2 months ago
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8/16-bit I/O Expander (mcp23) with advanced features

• Host: GitHub
• URL: https://github.com/johntalton/mcp23
• Owner: johntalton
• License: mit
• Created: 2018-05-17T06:22:46.000Z (almost 7 years ago)
• Default Branch: main
• Last Pushed: 2024-07-01T23:53:40.000Z (10 months ago)
• Last Synced: 2025-01-12T20:11:30.612Z (3 months ago)
• Topics: chip, expander, gpio, i2c, io, mcp23008, mcp23017, pin
• Language: TypeScript
• Homepage:
• Size: 894 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Microchip I/O Expander

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A Feature rich general I/O chip available in single port (8-bit) and dual port (16-bit) packages.

## Banks and sequential mode

The chip has four operational mode in which registers can be read/written.

- Interlaced Block

- Dual Block

- 8-bit Poll

- 16-bit Poll

The library exposes methods that are specific for each mode, and is the callers responsibility to validate mode settings. This affords reduced call overhead (no validation of mode) when operation are done in a stable mode environment.