BLYNK IOT

 

EX NO 13                                                          BLYNK IOT

LINK : CLOUD - BLYNK IOT

Aim

To develop an IoT-based monitoring system using the Blynk platform for collecting and displaying temperature and humidity sensor data through the internet.

Requirements

Hardware Components

• ESP32 or NodeMCU development board

• DHT11/DHT22 temperature and humidity sensor

• USB cable

• Breadboard and connecting wires

• Mobile phone or computer with internet access

Software Requirements

• Arduino IDE

• Blynk IoT platform account

• Blynk mobile application or web dashboard

• ESP32/NodeMCU board package and required libraries

Procedure

1. Create an account on the Blynk IoT platform and log in to the dashboard.

2. Create a new template for monitoring temperature and humidity values.

3. Add a new device under the created template and generate the authentication credentials.

4. Install the necessary Blynk and sensor libraries in the Arduino IDE.

5. Connect the DHT sensor to the ESP32 or NodeMCU board properly.

6. Open the sample program and enter the Wi-Fi network name, password, and Blynk authentication details.

7. Configure the virtual pins for transmitting sensor data to the Blynk dashboard.

8. Compile the program and upload it to the microcontroller board.

9. Power the device and ensure it connects successfully to the internet.

10. Open the Blynk dashboard or mobile application to verify the online device status.

11. Observe the live temperature and humidity readings displayed on the dashboard.

12. Test the system continuously and verify that sensor data updates correctly in real time.

Result

The IoT-based temperature and humidity monitoring system was successfully implemented using the Blynk platform. The sensor readings were transmitted through the internet and displayed in real time on the Blynk dashboard and mobile application.