Course work
14 / 4 / 2023
Task 1
Speed control of DC motor
The experimental setup is as follows:
The components are DC motors , L298N motor drive , Arduino board , potentiometer , Joystick / Pusher and Bread board.
The Arduino code written for DC speed control :
L298N module is a high voltage, high current dual full-bridge motor driver module for controlling DC motor and stepper motor. It can control both the speed and rotation direction of two DC motors. This module consists of an L298 dual-channel H-Bridge motor driver IC. We can control the speed of the DC motor by simply controlling the input voltage to the motor and the most common method of doing that is by using PWM
Task2
Distance between an obstacle and the sensor
The experiment is done in the simulation using tinkercad. Tinkercad Circuits is the easiest way to get your students started with learning electronics. Using our interactive circuit editor, students can explore, connect, and code virtual projects with a bottomless toolbox of simulated components ultrasonic sensors can measure the distance to a wide range of objects regardless of shape, color or surface texture. They are also able to measure an approaching or receding object. By using “non-contact” ultrasonic sensors, distances can be measured without damage to the object.
The working in the simulation
Task3
API
The weather reports is taken from the weather API and used to get the desired place's weather report. API stands for Application Programming Interface. In the context of APIs, the word Application refers to any software with a distinct function. Interface can be thought of as a contract of service between two applications. This contract defines how the two communicate with each other using requests and responses.
The above fig is the details of Delhi weather.
The above fig is the details of Bengaluru weather.
The Arduino code for the API
Task4
LED toggle using ESP32
ESP32 can perform as a complete standalone system or as a slave device to a host MCU, reducing communication stack overhead on the main application processor. toggle the state of an LED between ON and OFF when a button is pressed. More specifically: If the button is pressed, turn the LED on. If the button is pressed again, turn the LED off.
The experimental setup in hardware
The Arduino code is as follows :
As I switch the buttons in the browser , the LED responses in the way as mentioned in the code. The working is shown in the below video.
Task5
Karnaugh Maps and Deriving the logic circuit
A Karnaugh map (K-map) is a visual method used to simplify the algebraic expressions in Boolean functions without having to resort to complex theorems or equation manipulations. The security alarm in this project aims to keep the marvel lab secured, during the covid times. Due to the possibility of a lockdown, this provides security by informing the entering of any intruders into the lab. It was works on the basic principles of digital electronics and that is done by the use of logic gates. This has been done in order to implement this project without the use of a microcontroller. It's consisting of logic gates needed for the operation has been used.
The security alarm consists of a set up of two switches. One placed at the door hinge and another inside the lab. On opening the door, the alarm starts ringing until the switch inside is turned off. The alarm can be turned off only from the inside and hence this prevents all kinds of trespassers
The setup is done in the simulation is as shown below
The response of burglar alarm is here
Task6
555 astable multivibrator
The 555 Timer IC got its name from the three 5KΩ resistors that are used in its voltage divider network. This IC is useful for generating accurate time delays and oscillations.
Astable multivibrator using 555 IC is a simple oscillator circuit that generates continuous pulses. The frequency of the circuit can be controlled by shifting the values of resistors R1, R2 ad capacitor C1.
The working and setup is also done using the simulation
Task 7
Soldering
Soldering is a process used for joining metal parts to form a mechanical or electrical bond. It typically uses a low melting point metal alloy (solder) which is melted and applied to the metal parts to be joined and this bonds to the metal parts and forms a connection when the solder solidifies.
Step 1 – Melting the Solder. This is the very first step in the entire wave soldering process.
Step 2 – Cleaning the Components. This is a very crucial step to be carried out.
Step 3 – Placement of the PCB.
Step 4 – Application of Solder.
Step 5 – Cleaning.
The soldering is done in the presence of the coordinator.
Task 8
Writing resource article
The resource article is written using markdown in the website UVCE marvel itself. Markdown is an easy-to-use markup language that is used with plain text to add formatting elements (headings, bulleted lists, URLs) to plain text without the use of a formal text editor or the use of HTML tags. Markdown is device agnostic and displays the writing format consistently across device types.
i wrote a article on Graphene in electronics
Task 9
Web Portfolio
The web portfolio is created using visual code and the browser. A portfolio website is a unique way to showcase your work and let others know about yourself. It's like an evergreen platform for your projects, case studies, and information about you. In addition, it's one of the best ways to express your personality, experience, and capabilities. i have created a port folio website and i refered the code from github
LEVEL 1
Task 1 : LT-SPICE
LT-spice is a widely used electronic circuit simulation software, it allows us to create and simulate circuit schematics using a wide range of electronic components such as resistors, capacitors, inductors, transistors, operational amplifiers, and many more. In this experiment, an astable multivibrator using 555 timer was designed and simulated using LTspice.
https://github.com/Jeevanguru/Marvel-/blob/main/IMG_20230602_101318.jpg
Task 2 : TEMPERATURE DETECTION :
The LM35 temperature sensor is a widely used device for measuring temperature. In the experiment, an LM35 temperature sensor was connected to an Arduino board and used to measure the temperature.
https://github.com/Jeevanguru/Marvel-/blob/main/IMG_20230602_104753.jpg
https://github.com/Jeevanguru/Marvel-/blob/main/IMG_20230602_104814.jpg"