However, to fully understand how a neural network (NN) works, [Dimitris Tassopoulos] has stripped the concept down to pretty much the simplest example possible – a 3 input, 1 output network ...

This feature isn’t exclusive to the Leonoardo, as [Michael] explains in a build he sent in – the lowly Arduino Uno can also serve as a USB HID keyboard with just a firmware update.

The Uno also has a limited number of pins, making it difficult to work with when the project requires plenty of input and ... Worst To Best The Arduino Mega's PWM pins are digital output pins ...