๐ 1. LED Blinking Circuit
๐ 1. LED Blinking Circuit
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What you learn: Basics of resistors, LEDs, and breadboards.
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Components: 1 LED, 1 resistor (220ฮฉ), 1 battery (9V), jumper wires.
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Goal: Make the LED blink on and off manually or using a 555 timer IC.
๐ 2. Light-Activated Switch (LDR Circuit)
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What you learn: How light sensors (LDRs) work.
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Components: LDR, transistor (BC547), LED, resistor, 9V battery.
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Goal: LED turns ON in the dark and OFF in bright light.
๐ 3. Clap Switch
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What you learn: Use of sound sensors and transistors.
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Components: Microphone, transistor, relay, LED/bulb.
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Goal: Turn a light ON or OFF by clapping.
๐ก 4. Automatic Street Light
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What you learn: Sensor-based automation.
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Components: LDR, transistor, relay, LED lamp.
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Goal: Light automatically turns ON at night and OFF in the morning.
๐ 5. 555 Timer LED Flasher
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What you learn: How a 555 timer IC works in astable mode.
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Components: 555 timer IC, resistors, capacitor, LED, 9V battery.
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Goal: Create a continuous LED blinking pattern.
๐ 6. Simple Buzzer Alarm
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What you learn: Sound generation using buzzers.
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Components: Buzzer, switch, battery, resistor, transistor.
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Goal: Buzzer sounds when a switch or sensor triggers it.
๐ก️ 7. Temperature Sensor Circuit
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What you learn: Using temperature sensors like LM35.
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Components: LM35 sensor, LED, resistor, transistor, battery.
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Goal: LED turns ON when temperature exceeds a set limit.
๐ฅ 8. Fire Detection System
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What you learn: Sensor interfacing for safety circuits.
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Components: Flame sensor, buzzer, transistor, resistor, 9V battery.
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Goal: Buzzer sounds when fire is detected.
⚙️ 9. Mini Power Supply
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What you learn: Voltage regulation and power management.
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Components: Transformer, bridge rectifier, capacitor, 7805 regulator.
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Goal: Convert 230V AC to 5V DC output for powering small circuits.
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