But we can’t deny this Arduino calculator project by [Danko Bertović] ... is using an array of 17 tactile switches for the keyboard and a very crisp 128×32 I2C OLED display. Beyond the ...

There’s something about Reverse Polish Notation (RPN) and the calculators that use it. It calls to mind a time when a calculator was a serious tool, and not just a throwaway toy. Created in t… ...

This is the SB116, an 8-bit programmer’s calculator powered by an Arduino Nano. It features a 128 x 64 pixel monochrome OLED display and can be powered by either a USB port or three AAA batteries.