Jurica Resetar / Mbed 2 deprecated beep_2

Make noise with a piezo buzzer. Use a pwm pin. IO expander ints done.

Dependencies:   aconno_bsp mbed

Fork of beep by Jurica Resetar

Diff: mbed.bld

Revision:
6:936ba3699e47
Parent:
5:49c961e79a12