But we can’t deny this Arduino calculator project by [Danko Bertović ... For the user interface, [Danko] is using an array of 17 tactile switches for the keyboard and a very crisp 128× ...

All by itself, a calculator based on an Arduino isn’t necessarily very novel ... But it seems to us the real value would be using this as a base for other projects. As an inexpensive development ...

Using a CNC machine, the calculator has been constructed using a wooden case together with acrylic screen protector, and a little Arduino hardware. Featuring an Arduino Nano microcontroller board ...