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Current limiting resistor #13

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ylm opened this issue Oct 16, 2018 · 1 comment
Closed

Current limiting resistor #13

ylm opened this issue Oct 16, 2018 · 1 comment

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@ylm
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ylm commented Oct 16, 2018

I've checked the datasheet and the schematics to make sure and the recommended current limiting resistor is a bit low for a 3.3v usage as the IOs are rated for 8mA. So, I'd recommend using resistor of about 437Ohms instead (since you'd have to change the board design to bring Vccio down otherwise). Looking forward to test this circuit soon.
@gundy
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gundy commented Oct 18, 2018

Thanks. I've updated the README file accordingly.

I guess it's always possible that someone could try to plug low-impedance headphones in or something, and it'd be a shame if they ended up breaking anything as a result.

I appreciate you taking the time to comment. 👍

@gundy gundy closed this as completed Oct 18, 2018
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@gundy @ylm