CircuitPython Libraries on any Computer with MCP2221 by Carter Nelson published December 22, 2019, last edited March 13, 2025 posted in Sensors Programming/ Python Programming/ MicroPython / CircuitPython Save New Favorite × Please sign in to include this guide in your list of favorites. You will be redirected back to this guide once you sign in, and can then save this guide as one of your favorites. Download Overview Running CircuitPython Code without CircuitPython Setup Windows Mac OSX Linux Post Install Checks Pinout Examples GPIO I2C ADC DAC UART FAQ & Troubleshooting Downloads Single page Feedback? Corrections? Primary Products Your browser does not support the video tag. Adafruit MCP2221A Breakout - General Purpose USB to GPIO ADC I2C $6.50 Add to Cart Featured Products view all Your browser does not support the video tag. Adafruit MCP2221A Breakout - General Purpose USB to GPIO ADC I2C $6.50 Add to Cart STEMMA QT / Qwiic JST SH 4-pin to Premium Male Headers Cable Out of Stock STEMMA QT / Qwiic JST SH 4-pin Cable with Premium Female Sockets $0.95 Add to Cart STEMMA QT / Qwiic JST SH 4-Pin Cable - 50mm Long $0.95 Add to Cart STEMMA QT / Qwiic JST SH 4-pin Cable - 100mm Long $0.95 Add to Cart STEMMA QT / Qwiic JST SH 4-Pin Cable - 200mm Long $1.25 Add to Cart 72 Beginner Product guide Downloads Files: MCP2221 Datasheet EagleCAD files on GitHub Fritzing object in Adafruit Fritzing Library 3D models on GitHub Schematic, Fab Print and 3D model Page last edited March 13, 2025 Text editor powered by tinymce. FAQ & Troubleshooting