Miniature OLED display with accelerometer
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This miniature 64 x 48 OLED  display is paired with an accelerometer and a microcontroller in a 3D printed enclosure.  Using the accelerometer for tap detection allows scrolling through menus or images.  This provides a simple means for two-way communication between the user and the on-board microcontroller.

​The system also includes a USB plug and interface chip, a 150 mA-hr rechargeable battery, a battery charge controller, a LDO voltage regulator and an on-off switch.