> For the complete documentation index, see [llms.txt](https://drotek.gitbook.io/pixhawk-3-pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://drotek.gitbook.io/pixhawk-3-pro/main-devices/esc-motor.md).

# esc-motor

![](https://1542051135-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LU5o-Ac6o-JIpVeYPKs%2F-LYHVTcfuMLgdr8G0_6M%2F-LYHVWOv91sK7GTDbNIy%2Fesc-solo-drotek.png?alt=media\&token=8a0a8fef-c40f-4694-9e62-81a8db92467e)

The **ESC** (Electronic Speed Controller) allows the speed control of the motors according to the orders of the flight controller. Typically the control signal used by the ESCs is a PWM (Pulse Width Modulation) but some models allow the use of **I2C** or **CAN** signals.

The Pixhawk 3 Pro has **8 PWM outputs** for 8 ESC / Motor pairs.

[Get more information and shop here.](https://store.drotek.com/air-esc-15a-opto-t-motor)

## HARDWARE

Please connect each of your PWM ESCs to the corresponding "**Main Out**" output. Refer to the diagram below for the order of your ESC / Motor.

![](https://1542051135-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LU5o-Ac6o-JIpVeYPKs%2F-LYHTdAZAsfjCb2ETwKB%2F-LYHTgDOnsUJi98ps4cO%2Fesc-doc-drotek.png?alt=media\&token=ce1fb68b-4a9a-405f-be93-5a9558d415f3)

All blue motors should only be used with CCW propellers. Green motors with CW propellers.

To see what a CCW propeller looks like, please see the previous picture.

Also check the direction of the motors.

> **For safety reasons, remove the propellers before handling!**

To reverse the direction of a motor, simply swap two of the three cables that link the motor to the ESC.