WittyPi5: Issues with UPS functionality when disconnecting VUSB

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Last Post by agnr22 2 hours ago

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agnr22

(@agnr22)

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Hi,

I have a 12v power-source connected to the VIN terminals, and 5v to VUSB. My ideal scenario is to have VUSB as a variable primary power-supply, and the 12v as backup.

However, when configuring VUSB as the primary power in wp5 and then disconnecting VUSB, the Raspberry Pi reboots. After booting everything works fine with VIN, but reconnecting and disconnecting VUSB makes the device reboot again.

Is this a known issue?

Posted : 29/12/2025 1:59 pm

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