Minimum input voltage of Odroid C1+

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geraldo.gomes
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Minimum input voltage of Odroid C1+

Unread post by geraldo.gomes » Sat Sep 30, 2017 3:11 am

Hi,

I'm intending to power supply the Odroid C1+ directly from a supercapacitor when the main power supply is removed, for a while enough to the Odroid C1+ ends its shutdown process.

The voltage of supercapacitor decreases with time, so, to project the capacitance I need to know what is the minimum operational voltage of Odroid C1+.

I'm intending to insert the power in the 5V line using the GPIO pins labeled with 5V

Thanks in advance,

Geraldo Gomes.

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mad_ady
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Re: Minimum input voltage of Odroid C1+

Unread post by mad_ady » Sat Sep 30, 2017 3:18 am

I'd say it shouldn't go under 4.5V, but USB peripherals like a hdd might turn off sooner. If you're pressed for time and can't do a full shutdown you should at least run sync and hope for the best

geraldo.gomes
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Re: Minimum input voltage of Odroid C1+

Unread post by geraldo.gomes » Tue Oct 03, 2017 1:21 am

Hi, thanks for your reply. When the power goes down I don't wanna mantain usb devices on. I just wanna ensure that the CPU will end the shutdown process correctly.
So, I need to know the minimum input voltage to ensure the processor, RAM anda SD Card will work correctly.

geraldo.gomes
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Re: Minimum input voltage of Odroid C1+

Unread post by geraldo.gomes » Wed Oct 11, 2017 10:32 pm

I need to know too the maximum input voltage, a reminder: I'm inserting power through GPIO pins

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odroid
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Re: Minimum input voltage of Odroid C1+

Unread post by odroid » Thu Oct 12, 2017 9:05 am

Recommended input voltage is 4.75V~5.25V.

If you don't use any USB/HDMI port, it can run with 4.0 Volt.

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