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BCD to 7-Segment - Details

This is the only picture that came in focus, but its hard to see that zero is lit up so I kept the other.


7-Segment LED at the left, I was able to figure out the pins on that without too much trouble (couldn't get the comma or top dot to light up though).


The chip in the center is a MC14543B "BCD-to-Seven Segment Latch/Decoder/Driver for Liquid Crystals". All those slashes go a long way towards explaining why this was so difficult for me to setup.


Buttons on the right so that I could test the whole affair. My biggest problem was that these needed a pull-down resistor.

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Taken on December 6, 2009