Unused GPIO - Connect to GND or N/C

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Michael Quinn
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Last seen: 1 year 5 months ago
Joined: 2018-01-25 14:15
Unused GPIO - Connect to GND or N/C

For any GPIO that are not used in a design, should these pins be tied to ground or left Not Connected on the PCB?

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GPAK
david.riedell
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Last seen: 4 years 5 months ago
Joined: 2018-02-02 18:29
Hi Michael,

Hi Michael,

By default, every unused GPIO has a 1MΩ pulldown resistor attached, so we recommend that any GPIO that is unused be tied to GND.

-David