# A new use for Ag open GPS

**URL:** <https://discourse.agopengps.com/t/a-new-use-for-ag-open-gps/19974>\
**Category:** Getting Started\
**Created:** [14 October 2025 02:53 UTC](https://discourse.agopengps.com/t/a-new-use-for-ag-open-gps/19974 "2025-10-14T02:53:03Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![Pat](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/p/8491ac/32.png) [@Pat](https://discourse.agopengps.com/u/Pat)\
**Post date:** [22 October 2025 03:08 UTC](https://discourse.agopengps.com/t/a-new-use-for-ag-open-gps/19974/5 "2025-10-22T03:08:56Z")

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You can look in this long thread (should be around here)

> [@Grade control](https://discourse.agopengps.com/t/grade-control/1702/377):
>
> I originally was going to look into can, but there is a simpler way… all deere, cnh, and cat tractors made in the last 15 years come with a scraper interface… basically you plug and play. [DAC 8000 Wired - Manuals](https://manuals.rustsales.com/hardware-install-manual/h-wiring-diagrams/h-dac-8000-wired/) Not sure of the wiring for cnh or cat but here is the configuration of deere It is a 5v analog input that doesn’t like extremes. So 0-2.5v controls one direction and 2.5-5 controls another… CNH and JD have a dead band from ~2.25 – 2.75 volts, this varies some …

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_[View the full topic](https://discourse.agopengps.com/t/a-new-use-for-ag-open-gps/19974)._