# ThePeach FCC-K1

:::warning PX4 does not manufacture this (or any) autopilot. Contact the [manufacturer](https://thepeach.kr/) for hardware support or compliance issues. :::

**ThePeach FCC-K1** is an advanced autopilot designed and manufactured in **ThePeach**.

It is based on the **Pixhawk-project FMUv3** open hardware design and runs **PX4** on **Nuttx OS**.

![ThePeach FCC-K1](https://4155462212-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LArEa7z2SPawfl3HpCD%2Fuploads%2Fgit-blob-e52e238ee960ce814a457c616debc11841226094%2Fmain.png?alt=media)

## Specifications

* Main Processor: STM32F427VIT6
  * 32bit ARM Cortex-M4, 168 MHz 256 KB RAM 2 MB Flash memory
* IO Processor: STM32F100C8T6
  * ARM Cortex-M3, 32bit ARM Cortex-M3, 24 MHz, 8KB SRAM
* On-board sensors
  * Accel/Gyro: ICM-20602
  * Accel/Gyro/Mag: MPU-9250
  * Barometer: MS5611
* Interfaces
  * 8+5 PWM output (8 from IO, 5 from FMU)
  * Spektrum DSM / DSM2 / DSM-X Satellite compatible input
  * Futaba S.BUS compatible input and output
  * PPM sum signal input
  * Analogue / PWM RSSI input
  * S.Bus servo output
  * Safety switch/LED
  * 4x UART Ports: TELEM1, TELEM2, GPS, SERIAL4
  * 2x I2C Ports
  * 1x CAN bus
  * 1x ADC
  * Analog inputs for voltage / Current of 1 battery
* Mechanical
  * Dimensions: 40.2 x 61.1 x 24.8 mm
  * Weight: 65g

## Connectors

![pinmap\_top](https://4155462212-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LArEa7z2SPawfl3HpCD%2Fuploads%2Fgit-blob-0ac835bf827e2af636370744c7287fc82d208c2a%2Fpinmap_top.png?alt=media)

![pinmap\_bottom](https://4155462212-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LArEa7z2SPawfl3HpCD%2Fuploads%2Fgit-blob-4134a1c7ca01995c94df1274ec36a24a5a570bd4%2Fpinmap_bottom.png?alt=media)

## Serial Port Mapping

| UART   | Device     | Port                  |
| ------ | ---------- | --------------------- |
| USART1 | /dev/ttyS0 | IO Processor Debug    |
| USART2 | /dev/ttyS1 | TELEM1 (flow control) |
| USART3 | /dev/ttyS2 | TELEM2 (flow control) |
| UART4  | /dev/ttyS3 | GPS1                  |
| USART6 | /dev/ttyS4 | PX4IO                 |
| UART7  | /dev/ttyS5 | Debug Console         |
| UART8  | /dev/ttyS6 | TELEM4                |

## Voltage Ratings

**ThePeach FCC-K1** can be double-redundant on the power supply if two power sources are supplied. The two power rails are: **POWER** and **USB**.

:::note The output power rails **FMU PWM OUT** and **I/O PWM OUT** do not power the flight controller board (and are not powered by it). You must supply power to one of **POWER** or **USB** or the board will be unpowered. :::

**Normal Operation Maximum Ratings**

Under these conditions all power sources will be used in this order to power the system:

1. POWER input (5V to 5.5V)
2. USB input (4.75V to 5.25V)

**Absolute Maximum Ratings**

Under these conditions, all power sources cause permanent damage to the flight controller.

1. POWER input (5.5V Over)
2. USB input (5.5V Over)

## Building Firmware

To build PX4 for this target:

```jsx
make thepeach_k1_default
```

## Where to buy

Order from [ThePeach](http://thepeach.shop/)


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