> For the complete documentation index, see [llms.txt](https://docs.arkelectron.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.arkelectron.com/products/flight-controller/arkv6s/hardware.md).

# Hardware Reference

<figure><img src="https://1515919775-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FOwmEn1N45AR4WjMQhHlu%2Fuploads%2Fgit-blob-2c9d2443588e78882c194629e2c539cdff5e32a5%2Fark_v6s_back.jpg?alt=media" alt=""><figcaption><p>ARK Electronics ARKV6S</p></figcaption></figure>

## Specifications

| Specification | Value                                                                                                                                     |
| ------------- | ----------------------------------------------------------------------------------------------------------------------------------------- |
| MCU           | [STM32H743IIK6](https://www.st.com/en/microcontrollers-microprocessors/stm32h743ii.html), 480 MHz, 2 MB flash, 1 MB RAM                   |
| IMU           | [Invensense IIM-42653](https://invensense.tdk.com/products/smartindustrial/iim-42653/) industrial IMU                                     |
| Barometer     | [Bosch BMP390](https://www.bosch-sensortec.com/products/environmental-sensors/pressure-sensors/bmp390/)                                   |
| Magnetometer  | [ST IIS2MDC](https://www.st.com/en/mems-and-sensors/iis2mdc.html)                                                                         |
| Memory        | FRAM                                                                                                                                      |
| Form factor   | [Pixhawk Autopilot Bus (PAB)](https://github.com/pixhawk/Pixhawk-Standards/blob/master/DS-010%20Pixhawk%20Autopilot%20Bus%20Standard.pdf) |
| Heater        | 1 W. Keeps sensors warm in extreme conditions                                                                                             |
| Storage       | MicroSD slot                                                                                                                              |
| Indicators    | LEDs                                                                                                                                      |
| Power         | 5 V, 500 mA: 300 mA main system, 200 mA heater                                                                                            |
| Dimensions    | 3.6 × 2.9 × 0.5 cm                                                                                                                        |
| Weight        | 5.0 g                                                                                                                                     |

## Pinout

For pinout of the ARKV6S see the [DS-10 Pixhawk Autopilot Bus Standard](https://github.com/pixhawk/Pixhawk-Standards/blob/master/DS-010%20Pixhawk%20Autopilot%20Bus%20Standard.pdf).

## Serial Port Mapping

| UART   | Device     | Port          |
| ------ | ---------- | ------------- |
| USART1 | /dev/ttyS0 | GPS           |
| USART2 | /dev/ttyS1 | TELEM3        |
| USART3 | /dev/ttyS2 | Debug Console |
| UART4  | /dev/ttyS3 | UART4 & I2C   |
| UART5  | /dev/ttyS4 | TELEM2        |
| USART6 | /dev/ttyS5 | PX4IO/RC      |
| UART7  | /dev/ttyS6 | TELEM1        |
| UART8  | /dev/ttyS7 | GPS2          |

## Datasheet

* [ARKV6S](https://github.com/ARK-Electronics/ark-hardware/blob/main/ARKV6S/datasheet/ARKV6S_Datasheet.pdf)

## 3D Model and Case

| File                                                                                             | Contents |
| ------------------------------------------------------------------------------------------------ | -------- |
| [ARKV6S.step](https://github.com/ARK-Electronics/ark-hardware/raw/main/ARKV6S/model/ARKV6S.step) | Board    |

All files: [ARKV6S in ark-hardware](https://github.com/ARK-Electronics/ark-hardware/tree/main/ARKV6S)


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.arkelectron.com/products/flight-controller/arkv6s/hardware.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.