'Create STEM' thrives at the intersection of my Science, Raspberry Pi, Arduino projects, Unity based game designs, mathematical musings and cinematography.
The blog sets to document my learning and creative journey.
Have you ever wondered how fast does light travel ? We can measure the speed of light in our home using just our home appliances through a simple(and tasty !!) activity. Item List For this you will be needing: 1. A microwave 2. A bar of chocolate ( eggs work too!!) 3. A ruler 4. and a calculator. Principle A Microwave oven as the name suggests uses microwaves to heat our food. These microwaves are a part of the Electro-Magnetic spectrum and lie between Radio Waves and Infrared Waves. The interesting part is that these micro waves travel at the same speed as that of light. Viola! Calculating the speed of these micro waves would give us the speed of light. Now thankfully we have a handy equation to calculate this :- Speed of Microwaves (Light) = Wavelength ( Ξ») x Frequency ( Ξ½ ) Experiment Frequency - You may find this at the back of your microwave (usually 2450 MHz) o...
Hand Battery : Harnessing electricity Well !! You ππ are also a battery !! A human powered one !! πππLets check this out. Item list 2 x cardboard covers Copper plate Aluminium foil 2 x jumper wires A few paper clips Multimeter Procedure. Mount the copper plate on one of the cardboard covers and cover other cardboard cover with Aluminium foil. Connect the two above prepared plates to the multimeter test probes using the jumper wires. Set the multimeter to the 200 milliampere setting. Place one hand on each plate and observe the readings. If negative current is shown in the.meter, then simply reverse the connections of the multimeter probes. You can even wet your hands with water (or sanitizer works the best) to make ...
LCD KEYPAD DOOR LOCK USING AN ARDUINO Hi ! how about locking your room using an LCD door lock. That would be nice, especially so if you want to lock out a pesky sibling. π THIS IS WHAT YOU WOULD REQUIRE An Arduino Uno Micro Controller 16 x 4 LCD display 12 V DC solenoid door lock Led Lights Some jumper wires for the connections 9 V battery (an external power supply more closer to 12 V would be better ) Relay 10k potentiometer 220 Ohm resistor 4 x 4 keypad HOW DOES THIS DOOR LOCK WORK πππ When one enters the password for the door lock, the keys pressed match with the default keys. The solenoid lock is activated and the door lock opens. Simultaneously, the LCD also displays a 'Welcome' message. If the keys do not match the default password then the door lock remains closed. The LCD also displays 'Wrong Password' CIRCUIT DIAGRAM THE CODE After setting up the circuit as shown a...
Story Engineering A STUDENT FILM ON SCHOOL BULLYING A KIND GESTURE Well, the Summer of 2019 was indeed marvellous and well spent under the guidance and tutelage of phenomenal Ms. Arti Jain, learning the 'Art of Media and Story Telling' at Woodstock School, Mussoorie. Learning the language of cinematography from Ms. Arti was captivating and we :- Gained an insight into the fascinating and complex world of film making. Explored the basics of creating a story and exploring the visual medium. Saw and analysed a cross-section of films, fiction, documentaries et al. Had a hands on training on video shooting a nd editing and all this in the salubrious environs of Mussoorie. Story Line Wikipedia refers 'School Bullying' as one or more perpetrators who have greater physi...
I wanted to work on building a robotic car that could maneuver on its own and avoid obstacles. This project was an extension to the ' Smartphone Controlled RC Car ' project I worked on last year during the pandemic. You can read more about that project here . ARDUINO OBSTACLE AVOIDING CAR - A TUTORIAL GUIDE Components Used Arduino Uno L298N motor driver HC-SR04 distance sensor Servo Motor Cardboard and wheels for mounting everything Description For the project I attached the HC-SR04 distance sensor on top of a servo motor. The servo motor would rotate the distance sensor which could then scan the room and send data to the Arduino microcontroller. If the sensor detected an obstacle within its proximity, the Arduino would then via the L298N - motor driver change the RPM of either of the car's tires - effectively changing the direction. Here is the video I made detailing every step through the entire build of the project. :)
Smartphone Controlled RC Car Hey! So, this blog post would help you make a DIY Rc car that can be controlled using a smartphone via just Bluetooth. The entire page is divided into 6 main sections that'll guide you through the process - Required parts Fundamentals Important stuff to keep in mind The circuit diagram The code Connecting the car with the mobile app # STEP 1 - REQUIRED PARTS Motors and wheels kit link L298n motor driver link Arduino uno link 9V battery HC05 bluetooth module link Jumper wires link Mini bread board link #STEP 2 - UNDERSTANDING THE FUNCTIONING W hen we move the joystick in the smartphone the action is recorded and a signal is sent to the c...
HARNESSING ELECTRICITY TO COMMUNICATE - MORSE CODE Morse code is based on name of its inventor Samuel Morse and was used first in 1844. For well over 100 years it was extensively used for communication including during the World War 1 and World War 2. UNDERSTANDING MORSE CODE Here is a video to understand the Morse Code and you can also try a few android apps to get the hang of Morse Code STARTING THE PROJECT An excellent resource to understand the Morse Code and execute this project of harnessing electricity to communicate is via the Microsoft Education Workshop site https://www.microsoft.com/en-us/education/education-workshop/telegraph.aspx Collecting materials for the project was super cool. It's mostly available online via Amazon or other web portals. A simple Google search and would suffice. I used an Arduino Uno micro controller for the project but you can use a Microbit micro controller also. PROCESS Lets get started.....first...
A rduino Remote Control Car Remote controlled toys have always captivated me. Thus, I decided to make a RC car of my own....π. It is pretty interesting to make, but a look at the basics first...... Item list - These can be easily picked from Amazon or other online stores a. L298N Motor driver - Link b . Joy stick - Link c . Arduino uno - Link d . 9v battery - Link e. M otor and wheels - Lin k f . Jumper wires ...
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