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Traffic Light with Counter

This project implements a traffic light system with a countdown timer using an ATmega32 microcontroller. The system allows normal traffic operation, adjustable red and green light durations, a police mode, and an off mode.

🚦 Features

• Normal Mode: The traffic lights operate in a standard cycle (Red → Green → Yellow) while displaying the remaining time on a 7-segment display.
• Adjustable Red Light Duration: Users can modify the red light duration and see real-time updates on the 7-segment display.
• Adjustable Green Light Duration: Users can modify the green light duration similarly.
• Police Mode: The red light blinks, and "PO" is displayed on the 7-segment display.
• Off Mode: Turns off all lights and the 7-segment display.

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Graphical Guide for Operating the Circuit

🛠️ Hardware Components

• ATmega32 microcontroller
• 7-segment display (2 digits)
• Push buttons (for mode selection and time adjustment)
• LEDs (Red, Yellow, Green)

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🔧 Circuit Connections

Component	ATmega32 Pin
Green LED	PA0
Yellow LED	PA1
Red LED	PA2
7-Segment (Left - Tens Place)	PORTD (PD0 - PD6)
7-Segment (Right - Ones Place)	PORTC (PC0 - PC6)
Normal Mode Button	PB0
Set Red Time Button	PB1
Set Green Time Button	PB2
Police Mode Button	PB3
Off Button	PB4
Increase Time (Time+)	PB5
Decrease Time (Time-)	PB6

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🎮 How to Use

1️⃣ Normal Mode

Press the Normal button (PB0). The traffic lights cycle normally:
🔴 Red → 🟢 Green → 🟡 Yellow
The remaining time for each light is displayed on the 7-segment display.

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2️⃣ Adjusting Red Light Duration

1. Press Set Red (PB1) to enter red time adjustment mode.
   • The red LED turns on, and the current red light duration is shown on the 7-segment display.
2. Use Time+ (PB5) to increase the red light duration.
3. Use Time- (PB6) to decrease the red light duration.
4. To save changes, press any other mode button (e.g., Normal, Police, or Set Green).

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3️⃣ Adjusting Green Light Duration

1. Press Set Green (PB2) to enter green time adjustment mode.
   • The green LED turns on, and the current green light duration is shown on the 7-segment display.
2. Use Time+ (PB5) to increase the green light duration.
3. Use Time- (PB6) to decrease the green light duration.
4. To save changes, press any other mode button (e.g., Normal, Police, or Set Red).

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4️⃣ Police Mode

Press the Police button (PB3).

• The red LED blinks continuously.
• "PO" is displayed on the 7-segment display.

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5️⃣ Off Mode

Press the Off button (PB4).

• All LEDs and the 7-segment display turn off.

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🚀 Getting Started

1️⃣ Clone the Repository

git clone https://github.com/RezaGooner/Traffic-Light-with-Counter.git
cd Traffic-Light-with-Counter

2️⃣ Compile & Upload the Code

Use Atmel Studio, AVR-GCC, or Arduino IDE (if adapted for ATmega) to compile and upload the firmware.

3️⃣ Simulate in Proteus

• Open the provided Proteus simulation file.
• Run the simulation and test different modes.

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