This assignment requires the use of the Arduino and Robot Shield provided by the department to develop a program enabling a robot to complete an obstacle course. Key features include:

This assignment requires the use of the Arduino and Robot Shield provided by the department to develop a program enabling a robot to complete an obstacle course. Key features include:

• A 4 cm wide path.
• Obstacles no larger than the robot’s storage box.
• Barcode signs (“start recording” and “stop recording and playback”) with specific dimensions and stripe spacing (4 cm and 8 cm, respectively).

The assignment emphasizes Arduino C programming and robotics application design, specifically:

1. Creating data structures for sensor readings and motor commands.
2. Effective use of setup() and loop() functions.
3. Following defensive programming principles.
4. Designing control algorithms (e.g., collision avoidance).
5. Testing programs.
6. Evaluating robot performance.
7. Accurate documentation.

The assignment consists of three major parts:

1. Functional Requirements (60% of marks).
2. Testing (15% of marks).
3. Report (25% of marks).

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Functional Requirements (60%)

This section includes four tasks:

1. Working with Light Dependent Resistors (LDRs) – 15%

• Measure and record values from three LDR sensors on black and white surfaces under different lighting conditions.
• Steps:
  • On a white surface:
    1. Record 10 values with room lights on and calculate the mean.
    2. Repeat in dimly lit conditions.
  • On a black surface:
    1. Repeat the above steps.
• Present results as a graph showing relationships between surface colors and lighting levels.

2. Line Following and Obstacle Detection – 30%

• Tasks:
  • Follow a black line on a white background.
  • Detect obstacles, stop, flash an orange LED, and resume when the obstacle is removed.
  • Identify and decode “start-recording” and “stop-recording and playback” barcode signs.
  • Record movements during “start-recording” for playback without the line after the “stop-recording” sign.

3. Robot States – 10%

• Define robot states and indicate them with LEDs:
  • Orange LED flashes when an obstacle is detected.
  • Red LED stays on during recording.
  • Green LED flashes during playback and remains steady after playback completion.

4. EEPROM Usage – 5%

• Store calibration values for sensors and actuators in EEPROM for portability across different robots.
• Use the following values:

Testing (15%)

• Present a testing table in the report appendix summarizing the status of all hardware components.
• Test each component (e.g., push buttons, LEDs, LDRs, IR transmitter/receiver, servos).
• Debug using the Serial Monitor to print informative messages for test results.
• Perform behavior tests, e.g., line-following success rate over 15 trials.

Example: A button variable value changes correctly, indicating a passed test (debounce functioning).

Report (25%)

• Document all tasks, testing, and outcomes accurately, clearly, and concisely.
• Include results, code snippets, and insights to evaluate robot performance.

This structured approach ensures clarity and efficient completion of the assignment tasks. Let me know if you need further assistance!

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