root@kylin:~/menu# _
$ ./About$ ./projects$ ./links$ ./Contact
root@kylin:~/projects/hardware$cat traffic_light_system.md

Smart Traffic Light System

An embedded system built with ATmega328P that simulates a real-world traffic intersection with pedestrian priority, cooldown mechanism, and state machine-based control.

[+] Project Demo

Traffic Light System
SYSTEM ONLINE
▶ PEDESTRIAN SIGNAL (LED MATRIX)

➜ Real hardware implementation with LED matrix pedestrian signal and LCD countdown display.

[+] Features

  • ➜ Pedestrian Priority System
  • ➜ Cooldown Mechanism (2 minutes)
  • ➜ State Machine Control Logic
  • ➜ LCD Countdown Display
  • ➜ Dual Traffic Direction Simulation

[+] System Architecture

[Button Input]
        ↓
[State Machine Logic]
        ↓
[ATmega328P Controller]
        ↓
[LED Signals + LCD Display]

[+] State Machine

➜ Vehicle Green Phase
➜ Vehicle Yellow Phase
➜ Pedestrian Crossing Phase
➜ Cooldown State
Vehicle GreenVehicle YellowPedestrian (LED Matrix)CooldownState Machine Flow

[+] Tech Stack

#ATmega328P#C#Embedded#IoT#LCD#GPIO#LED Matrix#Buzzer

[+] My Contribution

  • ➜ Designed system architecture
  • ➜ Implemented state machine logic
  • ➜ Built cooldown mechanism
  • ➜ Integrated hardware components
  • ➜ Debugged and optimized system stability

[+] Future Work

  • ➜ Timer interrupt for precise control
  • ➜ Add sensors (IR / camera)
  • ➜ IoT remote monitoring
  • ➜ Computer vision integration