The chip also introduces other enhancements. Compared with Arduino’s previous-generation chip, the amount of onboard SRAM cache in the Uno R4 has been increased from 2 kilobytes to 32 kilobytes.

This doesn’t hold true to the newest generation of Arduino, as those board have replaced the FTDI chip with an ATmega8U2. That’s basically and ATmega8 with native USB handling… fancy.

This is the latest addition to Arduino’s line-up of budget-friendly development boards, and it uses Intel’s cute-as-a-button Curie chip to power itself ...