Back in the 486 days, it was common to see a “Turbo” button on the front ... a common 0.96″ SSD1306 OLED. From there it was just a matter of wiring it up to an Arduino and writing some ...

Powered by an ATMega328p pulled out of an Arduino Nano ... user interface is provided by two tactile buttons on the PCB as well as an 128×32 I2C OLED display. In a future version, [Electronoobs ...