[Joshua Woehlke] wanted to add a similar display to his ... common 0.96″ SSD1306 OLED. From there it was just a matter of wiring it up to an Arduino and writing some code to display different ...

Powered by an ATMega328p pulled out of an Arduino ... tip temperature. A basic user interface is provided by two tactile buttons on the PCB as well as an 128×32 I2C OLED display.