[Tobie’s] part of the hack is to use an Arduino and a few buttons as the controller. It’s easy to set up and we think the breadboarded controller approximates the size and weight of an LCD ...

The Arduino here creates tones of different frequencies, playing them through a connected piezo-speaker. The variation of the frequency of the tone (pitch) and the correct timing (rhythm) create the ...

We might think that an AVR microcontroller – e.g. the ATMega328p adopted by the Arduino UNO boards – has the sufficient number of pins to manage an alphanumeric LCD. In a complex industrial machine ...