7.3 Installing Blynk App
Steps to Install Blynk App on your Smartphone :
- Open Play store and download and install the Blynk App.
2. Once the app is installed either login to it using Facebook or create a new account on Blynk and login using that. Here I have logged in using Facebook. After logging in, create a new project by clicking on ‘New Project’.
3. Give the project a name of your liking. Select the hardware device as NodeMCU and select the connection type as WIFI, and hit create.
At this point Blynk will send an Auth token to your email id. We will use this ‘Auth token’ later inthe tutorial to link our app with the NodeMCU. Now since I’m using a four-channel relay, I’ll add 4 buttons on the blank project. You can add according to your Relay Module.
4. To add a new button just click anywhere on the blank area and select button from the side menu that pops up. You can place the button anywhere on the screen.
5. Click on the Button and give it a name. I’ll name it‘Relay 1’ as I’ll use it to control the first relay. Below the name, in the textbox select the pin as digital pin D3.
6. Repeat the process 3 more times and add threemore buttons. Naming them Relay 2, Relay 3 and Relay 4 And choosing their Digital Pins as D4, D5 and D6 respectively.
Now, the Blynk app is all set.
