5 Configuring System
ED-HMI2120-101C User Manual 5-31
5.8 Configuring Buzzer
The ED-HMI2120-101C contains a buzzer, and the control pin is GPIO6. You can manually configure
the buzzer to turn on and off.
Execute the following command to turn on the buzzer.
sudo raspi-gpio set 6 op dh
op means set to output, dh means that pin is high level.
Execute the following command to turn off the buzzer.
sudo raspi-gpio set 6 op dl
op means set to output, and dl means that pin is low level.
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