Rainbow-electronics GM862-QUAD-PY Manual de usuario descargar pdf (Pagina 60)

GM862-QUAD / PY Hardware User Guide

1vv0300748 Rev. 5 - 20/09/07

10.6 Using the Buzzer Output GPIO7

The GPIO7 pin, when configured as Buzzer Output, is controlled by the GM862-QUAD / PY module

and will drive with appropriate square waves a Buzzer driver.

This permits to your application to easily implement Buzzer feature with ringing tones played at the call

incoming, on SMS incoming or simply playing a tone when needed by your application.

A sample interface scheme is included below to give you an idea of how to interface a Buzzer to the

GPIO7:

NOTE: To correctly drive a buzzer a driver must be provided, its characteristics depend on the Buzzer and for them

refer to your buzzer vendor.

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Rainbow-electronics GM862-QUAD-PY Manual de usuario Pagina 60