1. Core Electronics & Safety
Polarity Awareness: Understanding the difference between Positive (+) and Negative (-) terminals to prevent damaging the Arduino Uno or L298N driver.
Breadboard Literacy: Knowing how the internal power rails and terminal strips are connected to facilitate quick prototyping.
Power Management: A basic understanding of how 7.4V from Li-ion batteries is stepped down or managed to power both high-draw motors and the 5V Arduino logic.
2. Hardware & Mechanical Skills
Motor Synchronization: The ability to mount 4 DC motors so that their rotational direction is consistent for forward and backward movement.
Sensor Calibration: Understanding how to adjust the potentiometer on IR sensors to account for ambient classroom lighting and different surface textures.
3. Programming Fundamentals (C++)
Conditional Logic: Mastery of "if-else" statements, which form the decision-making "brain" of the robot (e.g., If the left sensor sees black, then stop the left motors).
Digital I/O: Knowing how to define pins as INPUT (for sensors) and OUTPUT (for the motor driver) within the Arduino IDE.
4. System Integration
The H-Bridge Concept: A basic grasp of how the L298N module acts as an electronic switch to reverse motor polarity and control speed via PWM.
Loop Processing: Understanding that the Arduino code runs in a continuous loop, constantly polling sensor data to make split-second steering adjustments.
Understand Sensor Integration: Learn how IR sensors distinguish between different surface reflectivities to provide digital input.
Master Motor Control: Gain expertise in using the L298N H-Bridge module to control the speed and direction of multiple DC motors.
Apply Logic Gate Principles: Develop and implement "if-then" logic to translate sensor data into physical robotic movement.
Explore Power Systems: Understand the importance of high-capacity Li-ion batteries and manual switching in mobile robotics
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