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Mcp23017 I2C Gpio Expander Breakout Stemma Qt/Qwiic Ada 5346
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Vendor: Adafruit
Type: Single Board Computers
Sku: WBEEAB09PZLTLZZ
Availability: In Stock
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Mcp23017 I2C Gpio Expander Breakout Stemma Qt/Qwiic Ada 5346
$16.33
Frequently Asked Questions
- Q: What is the MCP23017 I2C GPIO Expander Breakout used for? A: The MCP23017 I2C GPIO Expander Breakout is designed to expand the GPIO capacity of your microcontroller projects. It provides 16 additional GPIO pins that can be configured as either inputs or outputs, making it ideal for controlling multiple devices such as LEDs, buttons, or other peripherals.
- Q: How does the MCP23017 connect to my microcontroller? A: The MCP23017 connects to your microcontroller via the I2C bus, utilizing the STEMMA QT or SparkFun Qwiic connectors for easy, solderless connections. This makes it simple to integrate with various development boards that support I2C communication.
- Q: Can I use multiple MCP23017 expanders on the same I2C bus? A: Yes, you can connect up to 8 MCP23017 expanders on a single I2C bus by utilizing the three address pins. This allows you to access a total of 128 GPIO pins (8 expanders x 16 GPIO each), which is great for complex projects requiring many inputs and outputs.
- Q: What are the power supply requirements for the MCP23017? A: The MCP23017 operates from a power supply of 3V to 5V, making it versatile for a variety of microcontroller projects. Ensure that your microcontroller's logic levels match the supply voltage to avoid any compatibility issues.
- Q: Are there libraries available for programming the MCP23017? A: Yes, there are solid libraries available for both Arduino and CircuitPython, complete with examples to help you get started quickly. You can also find community resources and code snippets for other platforms, given the MCP23017's popularity in hobbyist and professional projects.