Introducing Adafruit ItsyBitsy M4 by lady ada published June 17, 2018, last edited January 22, 2025 last major update December 08, 2021 posted in Adafruit Products Arduino Compatibles 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 Update the UF2 Bootloader Pinouts Arduino IDE Setup Using with Arduino IDE Adapting Sketches to M0 & M4 What is CircuitPython? CircuitPython on ItsyBitsy Installing the Mu Editor Creating and Editing Code Connecting to the Serial Console Interacting with the Serial Console The REPL CircuitPython Libraries Frequently Asked Questions Welcome to the Community! Advanced Serial Console on Windows Advanced Serial Console on Mac "Uninstalling" CircuitPython Troubleshooting CircuitPython Essentials CircuitPython Pins and Modules CircuitPython Built-Ins CircuitPython Digital In & Out CircuitPython Analog In CircuitPython Analog Out CircuitPython PWM CircuitPython Servo CircuitPython Internal RGB LED CircuitPython NeoPixel CircuitPython DotStar CircuitPython UART Serial CircuitPython I2C CircuitPython HID Keyboard and Mouse CircuitPython CPU Temp CircuitPython Storage CircuitPython Expectations UF2 Bootloader Details Downloads Single page Feedback? Corrections? Featured Products view all Your browser does not support the video tag. Adafruit ItsyBitsy M4 Express featuring ATSAMD51 $14.95 Add to Cart CircuitPython Starter Kit with Adafruit Itsy Bitsy M4 $24.95 Add to Cart Blinka the CircuitPython Temporary Tattoo $0.95 Add to Cart SWD (2x5 1.27mm) Cable Breakout Board $2.95 Add to Cart SEGGER J-Link BASE - JTAG/SWD Debugger $499.95 Add to Cart SEGGER J-Link EDU Mini - JTAG/SWD Debugger $59.95 Add to Cart 54 Beginner Product guide Downloads Files ATSAMD51G19 Product page w/datasheets (the main chip on the Metro M4) Fritzing object in the Adafruit Fritzing Library EagleCAD files on GitHub 3D Models on GitHub PDF for ItsyBitsy M4 Board Diagram on GitHub SVG for ItsyBitsy M4 Board Diagram Your browser does not support the video tag. Schematic & Fabrication Print Page last edited May 24, 2024 Text editor powered by tinymce. UF2 Bootloader Details