New Blynk IoT Platform Setup for ESP8266 & ESP32 | Blynk 2.0

This article explained a step-by-step guide for the New Blynk IoT Platform setup for ESP8266 & ESP32 to control appliances with the Blynk IoT app.

Related Article: New Blynk ESP8266 Relay control

Create an account in Blynk IoT Cloud Platform

First, you have to create an account in Blynk cloud platform. To sign up click on the following link

https://blynk.cloud/dashboard/register

Enter your email ID and click on Sign Up. After that, you will receive a verification email from Blynk. In that email click on Create Password to set the password for Blynk cloud account.

Create Template in Blynk IoT Cloud

After logging in to the Blynk IoT account, first, you have to create a template. In the console, click on the Developer Zone –> My Templates from the left-side menu.

Then click on New Template.

Then, you have to enter a name for that template.

Select the microcontroller or board you will use in the project from the Hardware dropdown menu.

The connection type should be WiFi.

You can enter a small description for the template. This field is optional.

Now click on Done.

Create Datastreams in the Blynk IoT template

After creating the template, go to the Datastreams tab.

Then click on “New Datastream” and select Virtual Pin.

Now, you have to enter a name for this Datastream.

Select the Virtual Pin and Datatype from the dropdown menu as per the requirement.
Here I will control a relay, so I have selected “Integer”. For the Temparetute you have to select “Double” datatype and related UNIT.

You can also set the MAX, MIN, and default value for the Datastream.

After that, click on Create.

In a similar way, you can add multiple Datastreams as per your requirement. Here I have created 2 Datastreams with Virtual Pin V1, V2 to control 2 relays.

Create Web Dashboard in the Blynk IoT template

Now, go to the Web Dashboard tab to add widgets.

In the dashboard, you can easily drag and drop any widgets from the left side.
Here I have added 2 Switch widgets to control 2 relays.

Now, if you hover over the widget, you will find a button with a gear icon. Click on the button to go to settings.

Now enter a name or title for this Switch widget.

Then select a Datastream that you have already created.

Now set the ON VALUE and OFF VALUE for the Switch widget.
Here I have set 1 for ON VALUE and 0 for OFF VALUE. So when I turn on the switch, it will send 1 to the connected microcontroller through the selected Datastream and if I turn off the switch, the microcontroller will receive 0.

You can turn on the “Show on/off labels” radio button (This is optional).

After that, click on Save.

In a similar way, you can add multiple widgets in the Web Dashboard as per your requirement.

Steps to Add Device in Blynk Cloud using Template

First, go to Devices and then click on “New Device“.

Click on “From template“.

Now, select the Template that you created for this Blynk project and enter a device name.

Then click on “Create“.

After adding the device, click on Devices in the left menu, then click on the device name from the list.

Now, click on the “Developer Tools” icon and scroll down.

You will get the Template ID, Template Name, and Blynk Auth Token. All these details will be required in the code.

You can use these details to program the microcontroller and control it from the Blynk IoT platform.

Install Blynk IoT app to set up Mobile Dashboard

Add widgets in Blynk IoT Mobile Dashboard

Now both the Web dashboard and Mobile Dashboard of the Blynk IoT platform is ready. So we can program the microcontroller with Arduino IDE.

Program the ESP8266 or ESP32 with Blynk Examples

Now, for the OTA update following are required. If you are not using OTA in your project, please skip the following steps.

Blynk Example for ESP8266 and ESP32

For any projects, in the new Blynk IoT platform, you will get all these files along with the .ino file (total 10 files). You have to keep all these files in the same folder.

Now open the .ino file in Arduino IDE.

In the code, you just have to update the BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME.

Now you can upload the code to ESP8266 or ESP32. You don’t have to hard-code the Wi-Fi credentials in the code.

After uploading the code, you have to update the Wi-Fi credentials through OTA.

Then you can control the ESP8266 or ESP32 from Blynk IoT App and Web Dashboard from anywhere in the world.

If you face any issues you can always let us know and please share your feedback with us.

Thank you for your time.