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Binary Game

The first assignment was a reaction game for practising binary conversion. An LCD shows a decimal number, and the player has to enter its binary equivalent with four LEDs before the timer runs out. Each correct answer makes the next round shorter.

Rules and parts

• Components: 4 green LEDs, 1 red LED, 4 buttons, 1 potentiometer, 1 LCD.
• Goal: Read the decimal number on the LCD and correctly light up the LEDs to represent it in binary.
• Challenge: Time limit T1 decreases as the score increases.

Technologies: C, PlatformIO

Binary Game demonstration (YouTube)

Smart Waste Management System

For the second project, we treated a waste bin as a small connected system. Arduino sensors report fill level, temperature, and nearby movement; a gate controls access, and a desktop view shows the current state and warnings.

What is connected

• Sensors: Real-time monitoring of waste level, temperature, and human presence.
• Automation: Automatic gate management for disposal security.
• Remote Communication: Integrated GUI for system status and alerts.

Technologies: Java, C++, PlatformIO

Smart waste management demonstration (YouTube)

Networked Window Controller

The last project connected several pieces: ESP32 temperature nodes, an Arduino and servo that move a physical window, a central server, and a remote dashboard. It was my first useful taste of debugging a distributed system one wire at a time.

The pieces

• Temperature Monitoring: ESP-32 based sensor nodes.
• Window Controller: Arduino-controlled servo motor for physical window movement.
• Control Unit: Central server managing distributed logic.
• Dashboard: Remote GUI connecting to the central server for manual override.

Technologies: C++, Java, Python, HTTP/MQTT Protocols

Window control system demonstration (YouTube)