Atal Tinkering Lab

Introduction:

The Atal Tinkering Lab (ATL) report outlines the completion of a project conducted at the lab: an ongoing project on LED blinking circuits, and simple alarm systems. These projects were selected to increase understanding of basic electronics and sensor integration.

Project 1: LED blinking circuit

Objective
To design and build a simple circuit that blinks an LED at regular intervals.
Components used

Arduino uno
Bread board
LED
220-ohm resistor
Connecting wires

Process

Circuit assembly:
- Connect the anode (long leg) of the LED to pin 13 of the Arduino through a 220-ohm resistor.
- Connect the cathode (small leg) of the LED to ground (GND) on the Arduino.
Tests:
- After uploading, see the LED blinking at an interval of 1 second.

Project 2: simple alarm system
Objective
Creating an alarm system that activates a buzzer when a button is pressed.
Components used

Arduino uno
Bread board
Buzzer
Push button
10k-ohm resistor
Connecting wires

Process
Circuit assembly:

Connect the positive terminal of the buzzer to pin 9 of the Arduino and its negative terminal to GND.
Connect one leg of the push button to 5V and the other leg to Pin 2.
Connect a 10k-ohm resistor between pin 2 and GND to act as a pull-down resistor.

Tests:

Press the button and see the sound coming from the buzzer.

Conclusion

Each project was designed to increase skills and confidence in using microcontrollers, sensors, and creating interactive electronic systems. The LED blinking circuit introduced basic circuit assembly and programming. The simple alarm system integrated user input with output control.

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