Datasheet
OLED displays do not have a backlight, and are fairly low power, this display will draw
about 10mA when in use. The display uses 3V power and logic so we just connect to the
3V and GND pins from the feather, as indicated above.
I2C Data Pins
The cute little OLED does all of the data transfer over the I2C pins, highlighed above SDA
and SCL. No other pins are required. There are two 2.2K pullups to 3V on each.
These pins can be shared with other I2C devices.
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