# I/O Board and Payload Power

The Input/Output (I/O) board, which is located at the bottom, acts as an interface between the Flight Management Unit (FMU) and various other components. It enables the FMU to access and control the rangefinder, nadir camera, and other similar devices, allowing for more efficient and accurate operation.

 

<figure><img src="https://721100047-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FPGMrULovSCSAisV8bLg3%2Fuploads%2FtNpEbw6wgC3LYTjMNWMc%2F69845348656--5FC579B3-8A5D-4457-9255-AFBFF1B8CC9A.jpg?alt=media&#x26;token=20aaafe6-45fd-4f9d-93bd-1e06dbd1620c" alt="" width="375"><figcaption></figcaption></figure>

Onboard Power

Aurora has equipped the UAS with a 24V power source accessible via an XT30 connector at the bottom. The power supply is routed through a fused switching system and regulated by a linear regulator, ensuring clean and reliable power.

## I/O outputs

USB-C for webcam, flash storage, etc

**Telem1**- UART4 and I2C from FMU

**Ethernet**- for camera or other network-based payloads

**Cap**- FMU CH 7 and CH 8, FMU CAP, and one GPIO from MC

**Can1**- CAN from FMU

**PWM**- ch7-8

<div align="center"><figure><img src="https://721100047-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FPGMrULovSCSAisV8bLg3%2Fuploads%2F4QZB4vvNembjKVzR7zD7%2Fcan.png?alt=media&#x26;token=0eb99562-abef-484e-83ba-f39800c30557" alt=""><figcaption></figcaption></figure> <figure><img src="https://721100047-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FPGMrULovSCSAisV8bLg3%2Fuploads%2FX970D9GfMOVWPBB0LVNY%2Fcap.png?alt=media&#x26;token=076ce929-12ad-43b3-8241-fde55f68a8b5" alt=""><figcaption></figcaption></figure></div>

<div><figure><img src="https://721100047-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FPGMrULovSCSAisV8bLg3%2Fuploads%2F8MT5Edah4bZZh3qhqD5N%2Feth.png?alt=media&#x26;token=f7ad4185-bb14-4bc7-870f-d6106d14d7c8" alt=""><figcaption></figcaption></figure> <figure><img src="https://721100047-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FPGMrULovSCSAisV8bLg3%2Fuploads%2FLWkJuaiLY57L2eS3z5HC%2Fgps.png?alt=media&#x26;token=b5d60d58-3755-4e32-b95d-bbcf20adbec5" alt=""><figcaption></figcaption></figure></div>

## Payload Connector

<div align="left"><figure><img src="https://721100047-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FPGMrULovSCSAisV8bLg3%2Fuploads%2FyTxdak6S4oqPGSLQOe55%2FScreenshot%202023-12-27%20032435.png?alt=media&#x26;token=a617b1b6-91e7-4022-8a60-11aba99c17ee" alt="" width="231"><figcaption><p>Payload Pinouts</p></figcaption></figure></div>

## USB-C FMU Plug

The Aurora drone has an exclusive USB port located at the bottom of the device. This port is dedicated to direct connection with the onboard mission computer, which manages and coordinates the drone's operation. Using this USB port, you can easily perform essential tasks like upgrading the drone's firmware and communicating with the Flight Management Unit (FMU). To connect with the flight computer, it is important to power up the Aurora device, as the USB port alone does not supply power. Therefore, make sure the Aurora device is turned on before trying to communicate with the flight computer.