Arduino Leonardo Guide – Overview, and Uno Comparison
https://www.seeedstudio.com/blog/2019/11/15/arduino-leonardo-guide-overview-and-uno-comparison/
WebNov 15, 2019 · An overview of the Arduino Leonardo. Release date: July 23, 2012. Microcontroller: ATmega32u4 with built-in USB communication, eliminating the need for a secondary processor. Full Parametrics: Other features include: Power jack, ISCP header, and a reset button. What makes it unique? First to include built-in USB.
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