In this workshop, you will learn how to control an LED from an App.
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You will need to install "Blynk" app on your smart phone/iPad.

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Create Blynk account.

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Connect an LED to NodeMCU (PIN GPIO3) with a resistor and connect ground

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Upload the sketch (enter your Authorization token, WiFi SSID and WiFi password)
- You will need to obtain Authorization token from Blynk app by creating a new project
- Enter project name, choose device (ESP8266), connection type (GSM or WiFi), select light/dark theme

- Token is then sent to your registered email address
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Add a widget "button"

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Configure the button, select "switch" and PIN "GPIO3"

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Hit "Play" button and now you can turn your LED ON/OFF from your smart phone.
