The tutorial is fairly straightforward, and even demonstrates how the Arduino can be used as an ISP for the ATtiny, removing the need to purchase a standalone programmer.

Using his experience of running ML models on an old Arduino Nano, he had created a generator that can export C code from a scikit-learn.

Write the programme – called ‘sketch’ in Arduino speak (you do have to add ATtiny85 capability to the standard Arduino software – easy, see SparkFun link below). Re-programme the Uno as a programmer, ...