Buzzer (DS1101 and DS1102)
The buzzer is only available on the DS1101 and DS1102 devices. It is connected to the PL_IO_NUM_37_CO GPIO line.
Your application can control the buzzer through the "beeper" (beep.) object (see TIDE, TiOS, Tibbo BASIC, and Tibbo C Manual). Buzzer center frequency is 2730Hz, so the recommended value for the beep.divider property is 16203.