DFRobot OLED 128x64 2.7" Display - FIT0328 sen0138-r Blue and White have ~3

Blue and White have ~3

When the A button is released

768KHz crystal :for RTC

Works well in test builds: adds useful value when choosing parts for a build

when you press it the 'normally-open contact shorts to the common contact and the button stays 'pressed

DFRobot OLED 128x64 2.7" Display - FIT0328 sen0138-r Blue and White have ~3Crisp Graphics in a Compact OLED Module The OLED 128x64 2. 7" Display Module is a compact OLED display made for sharp text, icons, and simple graphics in electronics projects. It is a strong option when you want a small screen that looks cleaner and more modern than a basic character display. OLED modules are useful for portable projects, dashboard readouts, menu systems, and compact sensor displays. They are often paired with Arduino, ESP32, and