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Jathushan Varnakulasingam

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Python-Powered IoT: Controlling Physical Hardware via Laptop
IoT 5 min read Aug 2025

Python-Powered IoT: Controlling Physical Hardware via Laptop

Building a bridge between software and robotics using Python serial communication and Arduino motor control.

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Moving from screen-based code to physical motion is a thrill. This project uses Python to control an Arduino-based robot car via Bluetooth.

Robotics Hardware Architecture

The car features an Arduino Uno brains, an L298N motor driver for power, and an HC-05 Bluetooth module for wireless instruction reception. It's a modular build designed for future upgrades.

The Python Control Interface

The laptop-side script uses the `pySerial` library to capture real-time keyboard events and translate them into a custom protocol that the Arduino understands, enabling precise movement control.

Technologies Analyzed

Python IoT Arduino Robotics

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