SparkFun FT231X Breakout Colour_Candy This application note (283k pdf)

This application note (283k pdf) by Atmel (now part of Microchip) comprehensively describes the differences between the ATmega328PB and its predecessors

It's round shape with the screw holders make it a good choice for a home-made assembled robot

com/pimoroni/pxt-inkybit"

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SparkFun FT231X Breakout Colour_Candy This application note (283k pdf)Introducing the SparkFun FT231X Breakout board, complete with the full UART hardware handshake feature! The pin out of this board matches the FTDI cable to work with official Arduino and cloned Arduino boards. It can also be used for general serial applications. This board still brings out the DTR pin as opposed to the RTS pin of the FTDI cable. The DTR pin allows an Arduino target to auto reset when a new Sketch is downloaded. This is a really nice