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This project integrates an LM324A operational amplifier to create a robust signal amplifier for IR transmission. It utilizes an AT89S52 microcontroller as the decision-making unit, controlling an ultrasonic transmitter and receiver setup. The system can detect obstacles using ultrasonic waves and IR signals, amplifying the received signals for accuracy. An H-Bridge motor controller (L293B) allows for effective motor control based on sensor inputs, making this configuration ideal for automation and robotics applications.
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OP-Amplifier LM324A Signal amplifier IR TRANSMITTER Reflecting Surface IR RECEIVER Micro controller (Decision maker) AT89S52 ULTRA SONIC TRANSMITTER Obstacle ULTRA SONIC RECEIVER H-Bridge motor controller L293B Motors
IR EMITTER Reflecting surface (or) obstacle IR RECIEVER Ultrasonic emitter