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bigtreetech / BIGTREETECH-OCTOPUS-Pro

This is OCTOPUS Pro open source material
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Speaker pin? #14

Closed jvandervyver closed 2 years ago

jvandervyver commented 2 years ago

Hi

What is the pin to which "SPK1" is connected? If it isn't connected why include a speaker onboard?

Budavaril commented 2 years ago

Hi, Not for controlled by MCU as I guess you thought, so not connected for it. But it's connected to a HT7550-2 (SOT23-5) chip to watch the 5V rail voltage is present. If not, then will beeping.

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jvandervyver commented 2 years ago

Wow I really didn't expect such a detailed response. Thanks for explaining that explains why I hear the beeper when I power down.

Not for controlled by MCU as I guess you thought

I did