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Showing content from https://github.com/sparkfun/OpenSegment below:

sparkfun/OpenSegment: Example firmware and board files for the OpenSegment displays

OpenSegment Serial Display


OpenSegment Serial Display (Yellow) (COM-11645)

OpenSegment is a ATmega328 based backpack for larger 7-segment displays. The ATmega receives data over digital interfaces (such as TWI, UART, SPI and buttons) and does all the PWM and upkeep of the display.

Larger 7-segment displays pull more power than a microcontroller is able to drive directly. OpenSegment has 8 PNP and 4 NPN transistors in order to drive the segments at their maximum brightness.

Features:

This part was created in Eagle 6.3

The hardware is released under Creative Commons Share-alike 3.0.


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