Enter the ExtraCore library for Arduino, a software library that turns two or more Arduinos into a multi-core microcontroller with more pins than you’ll ever need. The ExtraCore library comes ...
[Rafael] just made a little library that allows you to interface these modules to the Atmega328p-based Arduino UNO in order to gain ... Our guess it that an SPI / I2C IO extender could lift ...
But even after eliminating the Uno from your selection, you'll still be left with a wide array of Arduino boards to ... a difference between the SPI and I2C/TWI pins, as well.