Shreya Savaliya

In this challenge, I designed a Smart Information Station using an Arduino Uno, I2C LCD, HC-SR04 ultrasonic sensor, LDR, and DHT11 temperature sensor. The LCD displayed temperature, distance, and room brightness in a simple layout. I learned how to combine multiple sensors and present their data clearly through an HMI.

In this challenge, I combined a PIR motion sensor, LDR, DHT11 temperature sensor, and I2C LCD to create a Smart Status Display. I learned how to display different status messages such as SAFE and DARK ROOM based on sensor readings. I also learned how to set priorities between different sensor conditions and display the most important information clearly on the LCD.

I connected the HC-SR04 ultrasonic sensor to the Arduino along with the I2C LCD. The sensor measured the distance of objects in front of it, and the LCD displayed the distance in centimeters in real time. I moved my hand closer and farther away and observed the distance value changing on the screen. This challenge helped me understand how ultrasonic sensors work and how sensor data can be displayed clearly on an LCD to create a practical digital measuring device.

In this challenge, I learned how to use the Arduino Serial Plotter to visualize sensor data as live graphs. I connected an LDR to A0, a potentiometer to A1, and a LDR11 temperature sensor to A2. I sent the readings to the Serial Monitor and observed how the graphs changed when I rotated the potentiometer. This helped me understand how data visualization makes sensor behavior easier to observe and analyze.

In this challenge, I built an Environment Monitor using an LDR, a temperature sensor, an Arduino, and an I2C LCD. I MADE the LCD to display the temperature for two seconds and then the light level for two seconds, repeating continuously. However, in between i got problem so Mohit sir helped me. This helped me understand how multiple sensor readings can be displayed on a single screen and how to create a simple dashboard using Arduino.

completed the LDR and LCD challenge successfully. At first, I faced a problem because the LiquidCrystal_I2C library was not installed, which caused a compilation error. After installing the library, the program worked correctly. The LCD displayed the live light level, such as “Light 1023”, and the value changed when I shone light on it. This helped me understand how sensor data can be displayed directly on an LCD instead of using the Serial Monitor.

This challenge was exciting because I learned how to use a 16×2 I2C LCD display with an Arduino Uno. I learned how SDA and SCL are used for I2C communication (communication of Arduino with other sensors like PIR ) and how the LiquidCrystal_I2C library controls the display. I successfully displayed “Hello Zero2Maker” on the LCD, which helped me understand how Arduino can communicate with external displays and show text. This challenge made me more confident in working with I2C devices and Arduino libraries.

This experiment was exciting because I learned how to create a countdown timer using a seven-segment display. I programmed the Arduino to display numbers (from chatgpt) from 9 down to 0, with a one-second delay between each number. When the countdown reached 0, it briefly paused and then started again from 9. I learned how timing and delays can be used to control the 7 segment display.

This challange was really fun because I got to make my own digital counter using a push button and a seven-segment display. I learned how one button press can increase the number by one and how the counter returns to 0 after 9. I also understood how state-change detection prevents one long press from counting multiple times. Since I used a common-anode display, I learned how LOW signals turn the segments ON.

This experiment was a fun and interesting experience because I learned how a seven-segment display works. I identified the seven segments from A to G and understood the difference between common anode and common cathode displays. Since I used a common-anode display, I learned that a segment turns ON when the Arduino sends LOW. Mohit sir also helped me in doing this. I also learned how different combinations of segments can form the numbers 0 to 9.

Working on the Smart Room Guardian project was an exciting hands-on experience. I combined an LDR, PIR motion sensor, and DHT11 temperature sensor with an LED and buzzer. I learned how multiple sensors can work together to create a smart automation system. The DHT11 helped me measure temperature and, while the LDR detected light and the PIR sensor detected motion. I used conditional statements to make the Arduino respond to different situations, such as turning on the LED when it is dark and motion is detected or activating the buzzer when the temperature becomes too high.

This challenge was an exciting way to understand how an Arduino can measure a real-world quantity like temperature. I connected the temperature sensor to A0, read its analog value, and converted the reading into Celsius using a sensor-specific formula. When I touched the sensor with my fingers, the temperature reading changed, showing how the sensor responds to changes in its surroundings.

This challenge was exciting because I built a simple automatic security alarm using a PIR motion sensor, LED, and active buzzer. I learned how one sensor can control multiple outputs at the same time. When motion was detected, both the LED and buzzer turned ON, creating a visual and audio warning. When there was no motion, both turned OFF.

This challenge helped me understand how a PIR sensor detects motion and how it can control an output like an LED. I learned that a PIR sensor detects changes caused by movement rather than measuring the distance of an object. It was interesting to see the LED automatically turn ON when motion was detected and OFF when there was no motion.

This challenge was a great way to understand how ultrasonic sensors can be used in real-life applications. I learned how to measure the distance of an object using the HC-SR04 and use map() to control the buzzer’s beep delay. As the object came closer, the buzzer beeped faster, creating a realistic reverse parking alarm.

I learned how to use an HC-SR04 ultrasonic sensor with an LED to create a simple parking assistant. The code was provided to me, so I focused on making the circuit connections and observing how the LED responded to different distances. When an object came close to the sensor, the LED turned ON, and when it moved farther away, the LED turned OFF.

I learned how the HC-SR04 ultrasonic sensor measures distance by sending an ultrasonic pulse and detecting its echo. The code was provided to me, so I focused on making the connections and observing the distance values in the Serial Monitor. By moving my hand closer and farther from the sensor, I could see the distance readings change in centimeters.

I learned how to calibrate an automatic night lamp by testing different threshold values such as 300, 500, and 700. The code was provided to me, so I focused on changing the threshold and observing when the LED turned ON and OFF

I learned how an LDR works as a light sensor and how it can detect changes in light intensity. The code was provided to me, so I focused on making the circuit connections and observing the sensor values in the Serial Monitor. I covered the LDR and shined light on it to see how the readings changed.

I learned how an LDR works as a light sensor and how it can detect changes in light intensity. The code was provided to me, so I focused on making the circuit connections and observing the sensor values in the Serial Monitor. I covered the LDR and shined light on it to see how the readings changed.

I learned how a push button can be used to control different LED patterns. The code was provided to me, so I focused on making the circuit connections and observing how each button press changed the LED pattern. This helped me understand digital inputs, digital outputs, and how Arduino can respond to user actions.

I learned how three potentiometers can control the Red, Green, and Blue brightness of an RGB LED. The code was provided to me, so I focused on making the circuit connections and observing how turning each potentiometer changed the LED’s color. This helped me understand RGB color mixing, analog inputs, and PWM outputs.

I learned how a potentiometer can be used to control four LEDs based on its position. I connected the components and observed how turning the potentiometer changed which LED glowed. The code was provided to me, so I focused on understanding the circuit, connections, and how the analog values controlled the LEDs.

In this challenge, I connected the potentiometer to the Arduino Uno.

I connected a potentiometer and LED to the Arduino and used the potentiometer to control the LED’s blinking speed. By turning the potentiometer, I could make the LED blink faster or slower. I learned how to read analog values and use them to control timing.

connected a potentiometer and LED to the Arduino and observed how turning the potentiometer changes the LED’s brightness. I learned how a potentiometer can control brightness and understood the basic concept of analog input and PWM output.

I connected the active buzzer and push button to the Arduino Uno and programmed the circuit so that pressing the push button activates the buzzer. The buzzer remained ON for 3 seconds and then automatically turned OFF. This experiment helped me understand how to read digital input from a push button and control a digital output device using timing and delay.

I learned how a push button can control an LED and understood the concept of ON and OFF states. This activity also improved my breadboard wiring skills and helped me understand how button state changes can be used to control outputs.

I connected an LED with a push button to the 5V and GND pins of the Arduino Uno. When I pressed the button, the LED turned ON, and when I released it, the LED turned OFF. I learned how a push button controls a circuit and understood the difference between an open and closed circuit.

I connected an LED to the 5V and GND pins of the Arduino Uno and observed that it glowed continuously without using any program. I learned how to connect components to the 5V power supply safely.

In this challenge, I created a unique four-LED light show by experimenting with different blinking sequences and timings. I observed how changing the order and delay of the LEDs created different animation effects. This helped me apply the programming concepts I learned earlier and understand how creative patterns can be made using Arduino.

In this challenge, I used the given Arduino code to create an alternate LED blinking pattern. The first and third LEDs blinked together, followed by the second and fourth LEDs, with each pair changing every 500 milliseconds.

In this challenge, I used the given Arduino code to run a forward and reverse LED pattern. I observed the four LEDs turning ON one after another from the first to the last and then moving back in reverse order.

In this challenge, I learned how to create a progressive LED pattern using six LEDs. One LED turns ON every second, gradually increasing the number of LEDs that are ON until all six LEDs are lit. Then, all the LEDs turn OFF and the sequence starts again.

In this challenge, I learned how to control six LEDs in groups of two and create a repeating light pattern. The first two LEDs turn ON during the first second, the middle two LEDs turn ON during the second second, and the last two LEDs turn ON during the third second. After that, the pattern repeats continuously.

In this project, I learned how to follow a given LED pattern and understand how the LEDs change every second. Since the code was already provided, I focused on understanding how the sequence works and how the Arduino controls each LED one at a time.

In this project, I learned how to connect eight LEDs to an Arduino Uno and observe the running-light effect using the given code. I understood how multiple LEDs can be controlled through different output pins and how the circuit and program work together to make the LEDs glow one after another.

In this activity, I connected four LEDs directly to four digital pins of the Arduino Uno without using resistors, as instructed by my teacher. I uploaded the given Arduino program and observed how each LED turned ON one at a time, creating a running light effect. This activity helped me understand how multiple LEDs can be controlled in sequence, improved my circuit-building skills, and increased my confidence in working with Arduino.

In this activity, I connected three LEDs directly to three digital pins of the Arduino Uno without using resistors, as instructed by my teacher. Since the Arduino was powered through the laptop's USB port, we completed the experiment this way. I programmed the LEDs to glow one after another in a continuous sequence. This activity helped me understand how to control multiple digital output pins, improve my Arduino programming skills, and gain confidence in creating sequential LED patterns. Seeing the LEDs blink in the correct order made the experiment interesting and easy to understand.

This challenge helped me understand how to modify an Arduino program independently. I changed the code so the LED stayed ON for 0.5 seconds and OFF for 1 second, then successfully uploaded it to the Arduino Uno. Through this activity, I became more confident in editing code, using the Arduino IDE, and testing different blinking patterns. It also improved my understanding of timing with the delay() function and the complete Arduino programming workflow.

This challenge helped me understand how to modify an Arduino program independently. I changed the code so the LED stayed ON for 0.5 seconds and OFF for 1 second, then successfully uploaded it to the Arduino Uno. Through this activity, I became more confident in editing code, using the Arduino IDE, and testing different blinking patterns. It also improved my understanding of timing with the delay() function and the complete Arduino programming workflow.

In this activity, I changed the LED's blinking pattern by keeping it ON for 3 seconds and OFF for 1 second. It helped me understand that the ON and OFF timings can be controlled independently by changing the delay values in the code. I also learned how small changes in the program affect the circuit's behavior and became more confident in experimenting with Arduino code.

Changing the delay to 0.5 seconds helped me understand how timing works in Arduino. It was interesting to see the LED blink faster with just a small change in the code, making the activity both simple and engaging

I challenged myself that can i do it or not on my own. so without copying the give code i just changed the values of the previous code which is basically the same and also for 5 sec and 0.5 sec.

I was curious if it was possible to put more then 8 leds. I tried and it worked. i was amazed by this.

enjoyed experimenting with different LED placements on the breadboard. At first, I wasn't sure which holes were connected, but by trying different positions and observing which LEDs lit up, I gradually understood the breadboard's internal connections. It was a fun, hands-on activity that improved my understanding of basic circuit design and made learning electronics more interactive.

i had put one led reverse and thought it was damaged then i realised that the shorter leg comes in the negative. So i learned to check everything before continuing.

The Bread board consists of negative + positive rails at sides which are vertically connected and in the middle two compartments the power flows from horizontally.

It was a good experience. First of all, when I joined the cable through the computer, it did not work. It was hilarious because the wires of arduino were not joined. so i got good experiece.

Overall, I really enjoyed doing this project. At first, I found it a little confusing to connect the LEDs and upload the code, but after a few tries I was able to do it. there are two photos and it shows the led blinking.