Buzzer (DS1101, DS1102, and WS1102)
The buzzer is available on the DS1101, DS1102, and WS1102 devices. The buzzer's center frequency is 2,750Hz.
Your application can control the buzzer through the "beeper" (beep.) object (see the TIDE, TiOS, Tibbo BASIC, and Tibbo C Manual).
On the DS1101 and DS1102, the buzzer is connected to the PL_IO_NUM_37_CO GPIO line. The recommended value for the beep.divider property is 16203.
On the WS1102, the buzzer is connected to the PL_IO_NUM_9 GPIO line. The recommended value for the beep.frequency property is 2750.