Este codigo genera el himno de la alegria mediante un piezo electrico

Dependencies:   mbed

Revision:
0:4dc7ef5de2da
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Thu Nov 15 05:05:09 2018 +0000
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+https://os.mbed.com/users/mbed_official/code/mbed/builds/e95d10626187
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