![4 digit charlieplexed segment display 4 digit charlieplexed segment display](https://www.electronics-lab.com/wp-content/uploads/2016/08/6197891468534224021-1024x974.jpg)
bobricius @ hackaday.io has designed an ultra thin custom display, requiring only 6 gpio pins to drive 30 leds.
FEATURES:
– 1.05×0.48 inches (26.67×12.22 mm)
– 30 led
– any color
– ultra thin …. etc. on 0.8mm board
– only 6 gpio
– ideal for wrist watch
4 digit charlieplexed segment display – [Link]
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