| Buy IO expander MCP23017 breakout |
Are you short on IO pins? Looking to increase the number of them? That’s what the GPIO Expander MCP23017 is for! It uses I2C communication to do so. With just two wires, 16 new fully configurable digital IO pins are added to a microcontroller.
Due to the jumpers on the board, the I2C address of a device can be changed. Thus, eight breakout boards can be connected to a microcontroller. All of the pins on the expander board have pull-out resistors that can be turned on and off.
This repository contains all design files for IO expander MCP23017 breakout, organized as follows:
CADfolder: Contains KiCAD design files, including:- Schematics
- PCB layout
- Panel PCB layout
- Source 3D files in Fusion360, if any
- All files are sorted by version with a detailed change log.
OUTPUTSfolder: Includes all production-ready files, such as:- Bill of Materials (BOM) and interactive BOM (iBOM)
- PDF versions of schematics
- 3D
.stepfile of the board - 3D-printable models
- Gerber files for PCB manufacturing
- Image of the pinout of the board
- Product image
- Compliance, legal and generic sales documents
Refer to the Change Log in the CAD folder for details about updates between versions.
Beyond the repository, explore the following resources:
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Contributions are welcome! Here’s how you can get involved:
- Submit pull requests to enhance the design or fix issues.
- Report bugs or problems by opening an issue.
We encourage community collaboration to make this product even better.
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All Soldered open-source hardware (OSH) is under The TAPR Open Hardware License. Read more in the LICENSE file located in this repository.
Disclaimer:
No warranty - all designs in this repository are distributed in the hope that they will be useful, but without any warranty. They are provided "AS IS", therefore without warranty of any kind, either expressed or implied. The entire quality and performance of what you do with the contents of this repository are your responsibility. In no event Soldered Electronics will be liable for your damages, or losses, including any general, special, incidental, or consequential damage arising out of the use or inability to use the contents of this repository.
Thank you for your support from your fellow makers at Soldered Electronics.
Happy Making!