Worked as part of the Eco-Drive engineering team on the development of two electric vehicles, KAFO (Urban Concept) and QARA (Prototype), for participation in the Shell Eco-marathon Qatar. My responsibilities focused on electrical systems, motor control, energy efficiency, and system integration during both the pre-marathon and competition phases.

Key Contributions

• Designed and implemented the complete electrical wiring architecture, ensuring safety, reliability, and compliance with Shell Eco-marathon technical inspection requirements.
• Programmed and tuned the motor controller to achieve smooth acceleration, stable operation, and optimal energy efficiency.
• Performed system-level testing and iterative tuning to optimize powertrain efficiency and vehicle performance under real driving conditions.
• Contributed to energy management optimization by analyzing motor controller behavior and minimizing electrical losses.
• Supported electrical integration of batteries, controllers, protection devices, and control interfaces.

Competition Achievements

• Successfully passed Technical Inspection for both vehicles under strict safety and engineering standards.
• KAFO competed among 9 vehicles in the Urban Concept category.
• QARA Prototype completed four consecutive laps in its first competition appearance.

Acknowledgments

Special thanks to Dr. Naif Alqahtani, Team Leader of Eco-Drive, for his continuous support, leadership, and belief in the team. Appreciation is also extended to Dr. Salim, Eng. Ibrahim Alramadan, and Dr. Adel Aldalbahi, whose guidance and support played a key role in the success of this project.

Key Features

• Low steady-state error (~1 ml deviation) for setpoints above 200 ml.
• Smooth transient response — pump control minimizes overshoot and abrupt stopping.
• Adjustable hose angle (Z-axis) to fit different container sizes and avoid water splitting.
• Ergonomic design — 30° angled interface board for easier LCD screen readability.
• Clean setup — pump and water source hidden under an IKEA table for a neat look.

Test Result

A 250 ml setpoint produced 251 ml actual output, showing consistent accuracy at higher volumes. For smaller volumes (<200 ml), pump inertia and sensor noise introduce higher deviations — a good reminder of the limits of low-cost actuators and sensors.

Why I Built It

This project reflects my interest in applying control theory and embedded systems to solve real-world problems, even outside of coursework. It also gave me valuable hands-on experience with hardware integration, interface design, and system tuning.

Code

The system uses a PIC16F877A microcontroller and a DS3231 real-time clock (RTC) to manage the feeding schedule. It controls a stepper motor via an A4988 driver to move a hopper that dispenses food at the set times. An infrared (IR) sensor checks the food level in the container — if it’s empty, the system shows a warning on the LCD and activates a buzzer.

The system has a user-friendly interface with buttons to set feeding times and control the motor manually. It also uses EEPROM to store settings, so the schedule survives a power outage. This project combines automation, sensing, and user control in a practical, easy-to-use pet care solution.

Code & circuit diagram

This project investigates WPT methods including inductive coupling, resonant inductive coupling, and microwave power transfer. A prototype system was designed to demonstrate efficient energy transfer over a distance while maintaining safety.

The study evaluates performance metrics and proposes optimizations, aiming to provide safe, efficient, and practical wireless energy transfer solutions.

This project explores the design and implementation of an autonomous robot integrated with a light flash sensor. The robot tracks a line on a surface while responding to obstacles using IR sensors and logic gates, with Op-Amp circuits ensuring precise movement control.

It demonstrates practical applications of sensors and basic electronics from the Electronics II course, showing how a simple robotic system can navigate real-world environments safely and efficiently.

In recent years, the integration of Arduino microcontrollers with relays has revolutionized the field of home and industrial automation, providing a flexible and cost-effective solution for controlling various electrical devices.

This project focuses on the development of a system that allows the control of four-channel relays using an Arduino microcontroller powered by 220V AC. The Arduino microcontroller acts as the central hub for controlling the relays and responding to user inputs or external signals. Safety and efficiency were key considerations throughout the design.

Project Team

Mshari
Al Jari

Saad
AL Mubaireek

Musaad
Alharbi

Alwaleed
Al Qahtani

Rayan
Alhizam

Mohammed
Al Abdullah

Advisor: Dr. Mohammed Alshakhs

Acknowledgment

I would like to express my sincere thanks to Dr. Mohammed Alshakhs for his guidance and continuous support throughout the project.

I also appreciate my teammates Mohammed Al Abdullah, Mshari Al Jari, Alwaleed Al Qahtani, Musaad Alharbi, and Rayan Alhizam who worked with me on this project.

Finally, I would like to thank King Faisal University and the Electrical Engineering Department for providing the environment and resources that made this work possible.

Smart IoT Electric Extension

This system is designed to provide a smart, safe, and remotely controlled power extension with features such as:

• Remote control via mobile app (RemoteXY)
• Voice control using Amazon Alexa
• Real-time current and energy monitoring
• Over-current protection with Telegram alerts
• Over-temperature safety shutdown

📄 Project Resources

• 📘 Download Full Report
• 🎥 Watch Setup Guide Video :

• 🎥 Watch assembly Video :

📊 System Overview

Overall workflow of the system from power input to monitoring and control.

System Overview and Design

🧠 System Architecture

Software Block Diagram

Circuit Diagram

⚙️ System Operation

Using the RemoteXY app you can:

• Turn sockets ON/OFF
• Set current limits
• Monitor current and temperature
• Track energy usage

🧩 Hardware Implementation

Full PCB Assembly

Main PCB + Current Board

📦 Enclosure Design

🛡️ Safety Features

Over-Temperature Protection

Shuts down at 60°C

Over-Current Protection

Trips after 5 seconds overload

⚠️ Important Safety Warning

Before starting the setup process:

• Do NOT connect the extension board to mains electricity (220V).
• Perform all configuration and programming while the ESP32 is powered only through USB.
• If possible, remove the ESP32 module from the extension board during programming.
• The extension should only be connected to electricity after firmware upload and configuration are completed.

This prevents electric shock, hardware damage, and unsafe operation.

Setup Guide

Contents

1. Install Arduino IDE and ESP32 Support
2. Install Required Libraries
3. Create RemoteXY Cloud Token
4. Setup Telegram Alerts
5. Setup Alexa Control SinricPro
6. Upload Firmware to ESP32
7. Remote Interface
8. Connect the Device to WiFi
9. Connect Using RemoteXY Mobile App
10. Final Step
11. License

Install Arduino IDE and ESP32 Support

Download Arduino IDE:

https://www.arduino.cc/en/software

Open Arduino IDE and go to:

File → Preferences

Add this to Additional Boards Manager URLs:

https://espressif.github.io/arduino-esp32/package_esp32_index.json

Press OK.

Open Boards Manager:

Tools → Board → Boards Manager

Search and install:

ESP32 by Espressif Systems

Select the board:

Tools → Board → ESP32 Arduino → ESP32 Dev Module

Install Required Libraries

Open Library Manager:

Sketch → Include Library → Manage Libraries

Install:

RemoteXY
SinricPro

Create RemoteXY Cloud Token

Go to:

https://remotexy.com

Create a token and replace it in the code:

#define REMOTEXY_CLOUD_TOKEN "YOUR_TOKEN_HERE"

Setup Telegram Alerts

Create a bot using:

@BotFather

Then get your Chat ID:

https://api.telegram.org/botBOT_TOKEN/getUpdates

Insert your credentials into the firmware:

const char* TG_BOT_TOKEN = "YOUR_BOT_TOKEN";
const char* TG_CHAT_ID   = "YOUR_CHAT_ID";

Setup Alexa Control SinricPro

Go to:

https://sinric.pro

Create four switch devices and insert the credentials:

#define SINRIC_APP_KEY    "YOUR_APP_KEY"
#define SINRIC_APP_SECRET "YOUR_APP_SECRET"

Upload Firmware to ESP32

Connect ESP32 via USB.

Select the port:

Tools → Port

Upload the code.

📱 Remote Interface

RemoteXY interface used to control sockets and monitor current, temperature, and energy.

Connect the Device to WiFi

Connect to the access point:

Smart IoT Electric ExtensionXXXX

Open:

http://setup.local

Configure WiFi.

Connect Using RemoteXY Mobile App

Use the Cloud Token to connect the device to the RemoteXY mobile application.

Final Step

1. Disconnect USB.
2. Reinstall the ESP32.
3. Plug the extension into 220V.

The system is now operational.

License

Saad AL Mubaireek Custom Non-Commercial License v1.0

Copyright (c) 2026 Saad AL Mubaireek

Permission is granted to any person obtaining a copy of this project and associated files to use, study, modify, and build the project for personal, educational, and non-commercial purposes only.

You may:

• use the code
• study the code
• modify the code
• build your own personal version

You may NOT:

• sell this project
• sell modified versions of this project
• use this project for commercial purposes
• manufacture this project for sale
• rebrand and sell this project as your own product

Commercial rights are reserved exclusively by the original creator, Saad AL Mubaireek.

This project is provided “as is”, without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose, and noninfringement. In no event shall the author be liable for any claim, damages, or other liability arising from, out of, or in connection with the project or the use of this project.