LED Blink Using Blynk 2.0 & NodeMCU
A Step-by-Step Guide
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A Step-by-Step Guide to make LED Blink Using Blynk 2.0 & NodeMCU Project
LED blink using Blynk 2.0 & NodeMCU is a popular project among hobbyists and enthusiasts in the field of electronics and Internet of Things (IoT). In this project, we will be using Blynk 2.0 platform to control the blinking of an LED connected to NodeMCU.
Blynk 2.0 is a cloud-based IoT platform that allows you to control hardware remotely using a mobile app. It provides a simple and intuitive interface for creating and managing IoT projects. NodeMCU, on the other hand, is an open-source firmware and development board that allows you to build your own IoT devices.
To get started with the LED blink using Blynk 2.0 & NodeMCU project, you will need to have the following components:
- NodeMCU board – https://amzn.to/3KvYGCN
- LED – https://amzn.to/3m0SOHs
- Resistor (220 ohms) – https://amzn.to/3KAKlW1
- Breadboard – https://amzn.to/3xJ9GVR
- Jumper wires – https://amzn.to/3EzbG6X
Once you have gathered all the required components, you can follow the steps below to set up the project:
Connect the LED to the NodeMCU board by connecting the long leg of the LED to GPIO pin D1 on the NodeMCU and the short leg to a 220-ohm resistor. Connect the other end of the resistor to the ground (GND) pin on the NodeMCU.Next, connect the NodeMCU board to your computer using a USB cable.
Download the Blynk 2.0 app on your smartphone and create a new project.
In the Blynk app, add a Button widget and set it up to control the digital pin D1.
In the Arduino IDE, create a new sketch and paste the following code:
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