Robert Sontheimer’s book, Arduino & Co – Measure, Control, and Hack, was recently published in English after its success as a German book. The author takes a unique approach to developing some clever hacks for the ATmega328P-equipped Arduino Pro Mini board (or compatible). The result is a book that’s a curated collection of topics, from introductions to transistors and a variety of sensors to a complete lithium-ion charging and testing station, to name a few.