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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
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