Internet of things (IoT) provides a platform that allows devices to be connected, sensed and controlled remotely across a network infrastructure. This work aims to develop a smart laboratory system in smart building based on IoT and mobile application technologies to monitor the overall activities of the lab including utilization of devices and environmental parameters via sensors. IoT smart hardware kits are designed using ESP32 wifi module, relays,  and sensors. The proposed work controls and monitors the devices of the laboratory using IOT Blynk Mobile Application and thingspeak WEB. Devices in laboratory are connected to IoT smart hardware kit. THINGSPEAK CLOUD and Mobile Application has been developed for interfacing IoT smart hardware kit. ESP32 also coded to monitor and update the temperature and humidity intensity inside laboratory.  ESP32 WiFi module will facilitate wireless communication, enabling remote monitoring and control of the laboratory system from anywhere with an internet connection. ESP32 wi-fi module is used to upload the data into the thingspeak cloud and Blynk mobile application. In this project devices are connecting along with relays.  Here relays work as a switch to ON/OFF the devices. In this we can control the devices manually through switches these four control switches will allow users to interact with the system, enabling them to control different aspects of the laboratory environment and remotely through blynk APP. DHT11 is used to detect temperature and humidity of the project. To achieve this task microcontroller loaded program written in embedded C language.

   The objectives of the project include:

• Controlling devices through Blynk app.
• Monitoring device status and weather into the thingspeak cloud.
• Control the devices in two ways.
• Relays based device switching.
• DHT11 based temperature and humidity detection.
• Using ESP32 to achieve this task.

  The main building blocks of the project are:

• Regulated power supply.
• ESP32 WI-FI module.
• Relays.
• 4-Devices.
• DHT11(temperature and humidity).

  Software’s used:

1. Arduino ide studio compiler to write the program.
2.  Express SCH for Circuit design.
3. Blynk APP.
4. Thingspeak cloud.

     

       

Block Diagram:  

 

     

 

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