This is a reference design for a SAMD21 for easy SWD programming and testing. This layout should work with any SAMD21 QFP package. The QFP package is pretty easy to solder and gives you about the same ...

This repository contains a bootloader, derived from Atmel's SAM-BA, which in addition to the USB CDC (serial) protocol, also supports the USB MSC (mass storage). UF2 (USB Flashing Format) is a name of ...

Despite its tiny size, SAMD21 Lite exposes all expect five I/Os from the microcontroller. The Microbus headers and the I2C Grove connector allow it to support hundreds of add-on boards from ...

At the MakerFair Bay Area Expo in San Mateo, Ca. this weekend Atmel and Arduino took wraps off their jointly developed Arduino Zero, a 32-bit platform they are aiming ...

Development boards with a USB Type-C port for power and programming are becoming more common, most in most cases with a female USB-C port. Designed by arturo182, Serpente R2 CircuitPython prototyping ...