The Shieldbuddy is an Arduino-style embedded board with a multi-core Infineon Aurix TC275 processor. This is certainly a high performance Arduino board with the processor running at 200MHz and with ...
A few years ago, Adafruit launched the Feather 32u4 Basic Proto. This tiny development board featured — as you would expect — an ATMega32u4 microcontroller, a USB port, and a battery charging circuit ...