Created by: Wasel Ahmed

This project is my first project using the ESP32. It is a smart motor control system that allows precise control of a DC motor using an L293D motor driver. The system can move the motor forward, reverse, stop, and simulate task sequences with speed variations, failures, and recovery mechanisms.

The project demonstrates how microcontrollers can interact with actuators, manage tasks, and track system statistics.

• ESP32 Dev Board
• L293D Motor Driver
• DC Motor
• Power supply for motor
• Connecting wires
• Breadboard (optional)

Pin Configuration:

• ENA (Motor Enable): GPIO 25
• IN1 (Motor Direction 1): GPIO 27
• IN2 (Motor Direction 2): GPIO 14

• motorForward(speedPercent) – Moves motor forward at a specified speed (0–100%)
• motorReverse(speedPercent) – Moves motor in reverse at a specified speed
• motorSoftStop() – Gradually reduces motor speed to 0
• motorHardStop() – Instantly stops the motor
• runBasicTask() – Executes a full task sequence including speed variations and simulated failures
• printStatistics() – Displays total tasks, successes, failures, recoveries, and system uptime
• printHelp() – Displays available commands

During testing:

• Motor ran continuously without command – Fixed by adjusting PWM control and pin logic
• Random task failures – Simulated in code to test recovery sequences
• Learning curve with ESP32 PWM control – Solved using analogWrite for simplicity

• Add Wi-Fi connectivity to report data remotely
• Integrate Google Sheets for automated logging
• Add sensors for real-world feedback like current or position
• Implement mobile app interface for control

• First project using ESP32
• Implemented motor control and safety mechanisms
• Task automation and statistics tracking
• Recovery mechanisms for simulated failures
• Serial interface commands for easy manual control

• How to interface an ESP32 with L293D for DC motor control
• Practical use of PWM for speed control
• Designing task sequences with phases and conditional logic
• Tracking statistics and system uptime in microcontrollers
• Handling failures and recovery in embedded systems

1. Connect the ESP32 and L293D as per the pin configuration.
2. Upload the code using Arduino IDE.
3. Open Serial Monitor at 115200 baud.
4. Use the following commands:
   • r – Run main actuator task
   • f – Forward (50%, 2s)
   • b – Reverse (50%, 2s)
   • s – Emergency stop
   • d – Display statistics
   • c – Clear statistics
   • h – Show help

• main.ino – Arduino code for motor control and task sequences
• README.md – Project description and instructions

• Inspiration from online ESP32 tutorials for motor control
• Learning resources from Arduino and L293D datasheets
• Guidance and clarifications from ChatGPT, for code structure, and troubleshooting assistance