An ESC is an electronic speed controller & is used in remote controlled airplanes, boats, & cars to manipulate the amount of electricity flowing from the battery to the motor.
In this tutorial I will show you how to control such as ESC with the arduino micro-controller via its serial monitor. This project will serve us well as we progress toward project AURA, or the Automated Unmanned Reconnaissance Airplane, the fully automated arduino controlled airplane.
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the esc provides 5V power to the servo connector- you can use this to power the Arduino (it’s 5V I’m guessing?)
and not need an external supply.