# High Frequency GPS updates

**URL:** <https://discuss.blues.com/t/high-frequency-gps-updates/3367>\
**Category:** Uncategorized\
**Created:** [November 7, 2025, 5:11pm UTC](https://discuss.blues.com/t/high-frequency-gps-updates/3367 "2025-11-07T17:11:58Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![hcabral](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/hcabral/32/1737_2.png) [@hcabral](https://discuss.blues.com/u/hcabral)\
**Post date:** [November 10, 2025, 10:39pm UTC](https://discuss.blues.com/t/high-frequency-gps-updates/3367/8 "2025-11-10T22:39:14Z")

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Hi Rob,

Got it, it makes sense. I will try the RX/TX simple serial comm with the Pi. So if the GPS will use AUXRX/AUXTX, setting up the RX/TX between the Notecarrier and the Pi 2 W, I would need to setup the card comm interface via which API? `card.io`, `card.aux`?

Thansk!  
Henrique

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