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I need, for a project, to connect on the same RPi (a 3B+) a NFC lector, the Sense Hat and also be able to use 26 GPIO port for additionnal LED and button. The project is a kind of a physical "Keep Talking And Nobody Explode".

I wanted to know if it's possible to stack the hats and be able to use the GPIO port, or if I need an additionnal chip to "add" more port.

(btw i'm French, I appologise for potential error)

RλPHλΣʟ
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1 Answers1

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I wanted to know if it's possible to stack the hats

Depends on the HAT - the Sense HAT exposes pins BUT putting another HAT on top would make it unusable. Some have stackable headers but not all.

The Pi exposes GPIO 0-27, of which 0,1 are reserved - leaving 26.

The Sense HAT uses some of the pins https://pinout.xyz/pinout/sense_hat so not all are available.

Milliways
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