Used Hardware

I used these devices:

1.5 Inch RGB Oled (SPI)

• Waveshare 128x128, General 1.5inch RGB OLED display Module, 16-bit high color

ESP32

• ESP32 NodeMCU Module WLAN WiFi Dev Kit C Development Board

Rotary Encoder

• Rotary Encoder Modul

Other Hardware may work, I tried two different ESP32 modules and only got it running with the one above.