Adafruit MCP2221A Breakout - General Purpose USB to GPIO ADC I2C

Drive a tiny OLED display, read a color sensor, or flash LEDs directly from your computer with the Adafruit MCP2221A breakout board. This versatile chip enables your computer to directly interface with devices, adding GPIO and I2C capabilities similar to USB to serial converters, but with enhanced functionality.

The MCP2221A features 10-bit analog inputs and a 5-bit DAC output, making it ideal for controlling OLEDs, sensors, and PWM drivers through the popular I2C interface. The onboard GPIO lets you flash LEDs, read switches, and engage in countless electronic projects.

Equipped with a USB-C connector, onboard 3V regulator, and a Stemma QT/Qwiic compatible 4-pin JST SH port, this breakout board ensures seamless connectivity. No soldering required when connecting to sensors or devices, simplifying your setup.

With built-in support for Python, rapidly iterate and test devices without dealing with complex firmware. Compatible with Mac, Windows, and Linux, this board provides access to hundreds of CircuitPython libraries and tutorials.