4 digits 7-segement LED display multiplexed using 2x 74hc595. counts 0-F hex on each of the displays sequentially. Program can control up to 8 digits

Dependencies:   mbed

Revision:
0:f44d91c545d9
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Mon May 02 15:31:24 2016 +0000
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+http://mbed.org/users/mbed_official/code/mbed/builds/c0f6e94411f5
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