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“In this simple tutorial, we will explore how to control a servo over the internet. For that, we will use a great couple of devices, the NodeMCU ESP12-E and a Blynk App. We will start learning how to connect the servo with the NodeMCU, knowing how to control it locally with a potentiometer, how to see its position on an OLED display and finally how to control it over the internet using a smartphone. The Block diagram gives us an overview of what will be the final project.”

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