# HyperPixel - which GPIO pins actually used?

**URL:** <https://forums.pimoroni.com/t/hyperpixel-which-gpio-pins-actually-used/7675>\
**Category:** Support\
**Created:** [May 3, 2018, 2:32pm UTC](https://forums.pimoroni.com/t/hyperpixel-which-gpio-pins-actually-used/7675 "2018-05-03T14:32:29Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![davidmpride](https://avatars.discourse-cdn.com/v4/letter/d/8491ac/32.png) [@davidmpride](https://forums.pimoroni.com/u/davidmpride)\
**Post date:** [May 3, 2018, 2:32pm UTC](https://forums.pimoroni.com/t/hyperpixel-which-gpio-pins-actually-used/7675/1 "2018-05-03T14:32:29Z")

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Hi,

Fairly straightforward - does the HyperPixel just use SPI (or I2C?) and power / gnd? Can I therefore use the pico hat hacker and still access UART on 15 and 16?

Many thanks,

DP.

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**Author:** ![lufbrarunner](https://avatars.discourse-cdn.com/v4/letter/l/858c86/32.png) [@lufbrarunner](https://forums.pimoroni.com/u/lufbrarunner)\
**Post date:** [May 3, 2018, 3:01pm UTC](https://forums.pimoroni.com/t/hyperpixel-which-gpio-pins-actually-used/7675/2 "2018-05-03T15:01:38Z")

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Check it out at pinout.xyz

> **[Hyperpixel at Raspberry Pi GPIO Pinout](https://pinout.xyz/pinout/hyperpixel)**
>
> A high-resolution 3.5