Marvrel report Task 1: Basics of MATT protocol ( message queuing telemetry protocol) 1 it is a ideal protocol for low - band width ,High latency. 2 it is specialized for low band width ,High latency,light weight. 3 application - layer protocol 4 It is designed for machine to machine communication and iot. 5 it is developed by IBM and eurotech. 6 it communicate through a message broker,no direct connection between publishers and receiver. 7 it is public subscribe based messaging protocol Advantages Low network usage Low power usage Light weight and easy to implement Applications Home and factory automation it Transport and logistics . Task 2: creating website In this task I have created a toggle button ,on clicking it changes a light mode to dark mode ,if it is in light mode and if it is in dark mode it changes to light mode by using HTML and CSS , javascript ,using if else statement. Task 3: Simon says Using ESP32 , ardunio code , pushbuttons and LEDs. Blink the LEDs randomly , it is a memory game on basis of that user have to click the push buttons of the respective led.If user fails ,restart the game. Task 4: To send data to things speak I created an account in things speak, using ESP32 and temperature sensor and using an api constant of things speak that is used in code and connection is made through that data of temperature is transferred and using matlab of python plotted a graph of temperature vs time. Task 5: soil sensor Connection using ESP32 and capacitive sensor is made and code is uploaded into Esp32 ,I measured a moisture level of my hand , it can be used in smart irrigation system where wastage of water can be prevented and seeds get a adequate amount of water. Task 6: Morse code Connection is made with led and ESP32 and code is uploaded ,led blinks to according to code of letters. It can be used to indicate a change in any pattern. Task 7: communicating using I2C ESP32 sends some data to Arduino through this I2 C protocol . Arduino is master and ESP -CAM is slave and message is displayed in serial monitor. TASK 8: MQTT publish and subscribe Connection are made using 3 LEDs and ESP32 and code is uploaded into ESP32 and then LEDs are controlled by using MQTT. Task 9: Read and display vitals using MAX30100 sensor and display on MIT APP INVENTOR ,which measures a heart rate and oxygen level .Ii gives notification to user if heart rate and oxygen level is out of range.