The FeatherWing OLED unit adds a 128x32 monochrome OLED display and three user buttons to any Feather main board. It comes fully assembled, allowing easy connection to a Feather board without the need for soldering.

These displays, while small (about 1" diagonally), are very readable due to the high contrast of OLED screens. The display consists of 128x32 individual white OLED pixels and does not require a backlight, resulting in lower power consumption and high contrast. It is an excellent choice for its clarity.

The screen comes with a reset button and three mini touch buttons, named A, B, and C, allowing for the addition of a mini user interface.

Note that OLED screens consist of hundreds of OLEDs. This means each pixel is an organic LED and if kept on for over 1000 hours, it will begin to dim. To keep the display bright uniformly, it is better to turn off the screen when it is not needed.

Tested with the Feather 32u4, M0, and ESP8266 boards. The OLED display uses only the two I2C pins of the Feather, can be placed in combination with other FeatherWings that use I2C, as it is a shared bus. For use, follow the tutorial for installing the Arduino library.

• PCB Dimensions: 22.9mm x 50.9mm
• Display Area: ~25.8mm
• Weight: 4.8g
• Button connections A, B & C on 32u4 or M0 Feather: 9, 6, 5 respectively
• Button connections A, B & C on Huzzah ESP8266 Feather: 0, 16, 2 respectively