# Pin Mapping

**URL:** <https://community.sparkfun.com/t/pin-mapping/43337>\
**Category:** Artemis\
**Created:** [January 15, 2022, 7:28pm UTC](https://community.sparkfun.com/t/pin-mapping/43337 "2022-01-15T19:28:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![lxpottle](https://avatars.discourse-cdn.com/v4/letter/l/e95f7d/32.png) [@lxpottle](https://community.sparkfun.com/u/lxpottle)\
**Post date:** [January 15, 2022, 7:28pm UTC](https://community.sparkfun.com/t/pin-mapping/43337/1 "2022-01-15T19:28:24Z")

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Where can I find pin mapping documentation for the redboard artemis? I want to optimize digitalWrite and digitalRead functions by directly manipulating the ports register.

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**Author:** ![TS-Russell](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/ts-russell/32/6092_2.png) [@TS-Russell](https://community.sparkfun.com/u/TS-Russell)\
**Post date:** [January 21, 2022, 12:26am UTC](https://community.sparkfun.com/t/pin-mapping/43337/2 "2022-01-21T00:26:02Z")

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Here’s some [https://cdn.sparkfun.com/assets/8/7/5/3 … \_Guide.pdf](https://cdn.sparkfun.com/assets/8/7/5/3/f/Artemis_Integration_Guide.pdf) (pg 7-9) and the schematic here [https://cdn.sparkfun.com/assets/4/5/a/3 … ematic.pdf](https://cdn.sparkfun.com/assets/4/5/a/3/e/RedBoardArtemisSchematic.pdf) and here are the cores [https://github.com/sparkfun/Arduino\_Apollo3](https://github.com/sparkfun/Arduino_Apollo3) and finally the forums [viewforum.php?f=167&\_ga=2.39231331.1532 … 1615791300](https://forum.sparkfun.com/viewforum.php?f=167&_ga=2.39231331.1532011856.1642449886-1853259630.1615791300) if those don’t get ya there 😉