> For the complete documentation index, see [llms.txt](https://nxp.gitbook.io/hovergames/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nxp.gitbook.io/hovergames/rddrone-fmuk66/connectors/ultrasound-sensor.md).

# Ultrasound sensor

## Connector pinout

| Pin | Signal             | Voltage |
| --- | ------------------ | ------- |
| 1   | VCC                | +5.0V   |
| 2   | ULTRASOUND TRIGGER | +5.0V   |
| 3   | ULTRASOUND ECHO    | +5.0V   |
| 4   | GND                | GND     |

## RDDRONE-FMUK66 Rev. C schematic

![](https://1329960936-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L9GLtb-Tz_XaKbQu-Al%2F-LVsF9QGtglk9CSM-Pf6%2F-LVsFER58umTkprDhnTr%2FC-usound.png?alt=media\&token=a17a6851-8737-4f24-bb94-00bd4efcf85f)

## RDDRONE-FMUK66 Rev. B schematic

{% hint style="danger" %}
Rev. B (and older boards) are **not supported** anymore. This information is left for reference.
{% endhint %}

![](https://1329960936-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L9GLtb-Tz_XaKbQu-Al%2F-LOrvCVzlhjwif35PmiG%2F-LOruHqIc0ACs0aO69So%2Fusound.PNG?alt=media\&token=96ddbbde-3d04-403b-beca-072d09f6743b)