CrowPanel Advance ESP32 HMI Display - What's the external Speaker Impedance Rating?

PKAE_ElectronicsPKAE_Electronics
edited February 11 in Elecrow HMI Display

Is the speaker output of the 7" Advance HMI intended for connection of a standard 4/8 ohm speaker, or something else?

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Comments

  • JennieJennie
    edited February 12

    Hello,
    The Advance ESP32 HMI speaker resistance is 8Ω.

  • PKAE_ElectronicsPKAE_Electronics
    edited February 17

    Of thanks for the response. I tried Elecrow's MP3 demo called "OnlineAudio_Large" and, although it compiled, I got no audio with a small 8ohm speaker connected. Using a scope, the output at the Speaker connector did no look at all like audio. More like switching noise.

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