# Schematics and design files

The schematics for different revisions of of RDDRONE-FMUK66 are available as PDF. The revision is usually printed on the PCB.  Rev. C and above are currently the only supported revisions of our FMUK66.

## DRONE-FMUK66 Rev. E/F schematics

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Rev. F is the latest revision of the RDDRONE-FMUK66. The board may be referenced as "E" there is no discernable difference between E and F. The change occured because of internal process only. 
{% endhint %}

The **schematics** are available on the [RDDRONE-FMUK66 product page on NXP.com](https://www.nxp.com/design/designs/px4-robotic-drone-fmu-rddrone-fmuk66:RDDRONE-FMUK66#Design-Resources), and should be obtained from there. In addition the **Gerber files** and a **Bill of Materials** for this particular board (look for "Design Files / BOM").\
&#x20;<https://www.nxp.com/webapp/Download?colCode=SPF-39053-F>

## RDDRONE-FMUK66 Rev. D schematics

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Rev. D. There are only minor changes compared to Rev. C and users should not notice any difference when using the FMU.
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{% file src="<https://1329960936-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L9GLtb-Tz_XaKbQu-Al%2F-M4s7D-UCIF5AMHB3Z80%2F-M4sB-RqPPrY3O2RP84J%2FSPF-39053.pdf?alt=media&token=14a86123-5dd9-47a2-b056-caf5256ed3db>" %}
NXP RDDRONE-FMUK66 Rev. D
{% endfile %}

The **schematics** are also available on the [RDDRONE-FMUK66 product page on NXP.com](https://www.nxp.com/design/designs/px4-robotic-drone-fmu-rddrone-fmuk66:RDDRONE-FMUK66#Design-Resources), as well as the **Gerber files** and a **Bill of Materials** for this particular board (look for "Design Files / BOM").

## RDDRONE-FMUK66 Rev. C schematics

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Rev. C is the previous revision of the RDDRONE-FMUK66. It is still fully supported.
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{% file src="<https://1329960936-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L9GLtb-Tz_XaKbQu-Al%2F-LbNeC1BNkqCtT7F8Loj%2F-LbNemKYuKzpkMEwKdio%2FSPF-39053-bx14.pdf?alt=media&token=4b004266-261a-411d-bbee-7d840dd0909f>" %}
NXP RDDRONE-FMUK66 Rev. C BX14
{% endfile %}

## RDDRONE-FMUK66 Rev. B schematics

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Rev. B (and older) boards are **not supported** anymore. The schematic is left available for reference only. Please [contact us](https://nxp.gitbook.io/HoverGames/contact#contact-the-hovergames-team) if you are still using an old RDDRONE-FMUK66 Rev B.&#x20;
{% endhint %}

{% file src="<https://1329960936-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L9GLtb-Tz_XaKbQu-Al%2F-LNJwpUGHZtHJrMct3Mm%2F-LNJxPZfmj3ROAZpSAIM%2FNXPhlite_3.0RC18_SCH.PDF?alt=media&token=1a8b5012-2715-4f25-a11a-a2ac16e8fa03>" %}
NXP RDDRONE-FMUK66 Rev. B 3.0RC18
{% endfile %}