2 / 1 / 2025
TASK 1: 3D PRINTING
To understand about the basics and parts of a 3d print. I referred to the resource links given in the coursework section.
I used Thingiverse website to download the model's STL file.I used the creatility software to slice change the infill density and dimensions.
To perform this task i used for 3d printing was Ender 3 printer.
Here is my 3d print. I printed Bay Max a character from Big Hero 6.
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TASK 2: API
In this task I learned about API(Application programming interface).I made a weather app that shows the temperature, humidity of a city with the help of an API key that i got from open weather map.
TASK 3: GITHUB :
From performing this task, I learnt how to create repositories and make changes in other's repositories.In the given task first I identified the error and then I forked the given repository and corrected the error and issued a pull request.
TASK 4: GETTING FAMILAR WITH COMMAND LINE ON UBUNTU:
I learned how to use the command line on Ubuntu. I created a folder named "test," added a blank file to it, listed the file, created 2,600 subfolders within it, concatenated two text files with random content, and displayed the results..
Commands used
- Mkdir (make directory)
- cd (change directory)
- touch (to create an empty file)
- ls (list files)
- cd (concatenate)
TASK 5: Kaggle contest:
First i made a kaggle account and familiarized myself with kaggle. The challenge is to predict which passengers survived the Titanic shipwreck.
My public score is 0.76555.
TASK 6: Working with Pandas and Matplotlib
I learned how to plot the below graphs using Matplotlib & use the programs as given in the below image to obtain the respective graphs: click here to view codes
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Bar Graph
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Line Graph
TASK 7: PORTFOLIO WEBPAGE
From this task i learned the basics of html and css.
click here to view the code for html.
click here to view the code for css
TASk 8: RESOURCE ARTICLE
I wrote an article about evolution of electric vehicle, how the concept of EV's started and few factors leading to exponetial growth of this sector.
To veiw the articleclick here
TASK 9: TINKERCAD:
In this task i created a tinkercad account and made a simple circuit using ultrasonic sensor to estimate the distance between an obstacle and the sensor.
components required
- Arduino uno
- jumper wires
- Ultrasonic distance sensor
- Micro servo
working principle :
-The sensor emits ultrasonic waves which has a frequency higher than human hearing.
-These waves travel through the air and reflect off objects in their path.
The sensor detects the echo (reflected wave) and measures the time it takes to return
-Using the time and the speed of sound
the distance is calculated.
-The servo motor rotates the ultrasonic sensor to scan a wider area.
TASK 10: SPEED CONTROL OF DC MOTOR
Through this task i gained knowledge about DC motor, I understood how to control a DC motors using the L298N motor driver and the Arduino board. I also learned to control the speed of a 5V BO motor to control the speed of a 5V BO motor.
- Below is the image of the circuit
TASK 11: LED TOGGLE USING ESP32
Before making the circuit assembly, I learned about ESP32 by referring the article given in the marvel website.
Components required
- ESP32 development board
- 2x 5mm LED
- 2x 330 Ohm Resistor
- Breadboard
- Jumper wires
TASK 12: SOLDERING
By performing this task I learnt how to use the soldering iron and solder.Before performing the task we should make sure that the soldering iron is heated.For this task i kept the temperature in between 270-300 degree celsius.
TASK 13: 555 ASTABLE MULTIVIBRATOR
To learn about the components of 555 IC and connections,I went through the resource link given in the course work.
COMPONENTS REQUIRED
- 555 IC Timer
- Capacitors (C1 & C2-0.1μF )
- Resistors (R1=10kΩ & R2=20kΩ)
- VRPS (5V)
- Oscilloscope
DUTY CYCLE
CIRCUIT
I got a duty cycle of 59.44%.
(<555 Duty cycle.jpg>)
TASK 14: KARNAUGH MAPS AND DERIVING LOGIC CIRCUITS :
Let us conisder the following:
Door = D, closed = 0, open = 1.
Key = K, closed = 0, open = 1.
Alarm = A, active = 1, inactive = 0.
TRUTH TABLE
KARNAUGH TABLE
Here is the simulation video below.
TASK 15: ACTIVE PARTICIPATION:
I partcipated in the kagathon event.
TASK 16 : L293D report writing:
OBJECTIVE: Study the datasheet of L293D motor driver and write a report on it. Specify about the ICs used in L293D, PWM, H-bridge etc.
Introduction
The L293D is a basic motor driver integrated chip that enables us to drive a DC motor in either direction and control the speed of the motor. This means it can drive up to two motors individually which makes it ideal for building a two-wheeled robotic platform
Pinout of L293D:
Input Pins (IN1, IN2, IN3, IN4): Control the direction of motors. Output Pins (OUT1, OUT2, OUT3, OUT4): Connect to motor terminals.
ENABLE1 (Pin 1): Activates OUT1 and OUT2 (for motor 1). ENABLE2 (Pin 9): Activates OUT3 and OUT4 (for motor 2).
Power Pins:
VCC1 (Pin 16): Logic supply voltage. VCC2 (Pin 8): Motor supply voltage.
Ground Pins:
GND (Pins 4, 5, 12, 13): Common ground for the motor and logic circuit
PWM(Pulse Width Modulation)-
PWM is a technique used to control the speed of motors by varying the width of the pulses sent to the motor's enable pins.
Working-The enable pins (ENABLE1 and ENABLE2) on the L293D are connected to a PWM signal. By changing the duty cycle of the PWM signal, we can control how fast the motor spins.
H-Bridge - To control the direction of motor
The spinning direction of a DC motor can be controlled by changing the polarity of its input voltage. A common technique for doing this is to use an H-bridge. An H-bridge circuit consists of four switches with the motor in the centre forming an H-like arrangement. Closing two specific switches at a time reverses the polarity of the voltage applied to the motor. This causes a change in the spinning direction of the motor.