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How to use a Buzzer on Helios64 P4 header

tjay
in Rockchip

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1-St%C3%BCck-PC-Speaker-Mini-Lautspreche

Hi, I bought a 2-pin piezo buzzer to use for alarm messages. It is connected to the P4 header on the board. When I execute the "beep" command in the console I only get short click noises.  Are special kernel drivers necessary for a correct function?

The buzzer pin on Helios64 is designed for active buzzer. The one on your photo is passive buzzer.

Passive buzzer requires the system to generate tone while the active one, system just need to supply power (on/off switch). The buzzer itself that generate the tone.

 

you can buy the passive buzzer at electronic component store, the one that sell Arduino etc.

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