Security & Access Control
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1. ATmega32 Password Security Lock System with 4x4 Keypad & EEPROM (Bare-Metal C + Proteus)
2. RFID Based Biometric Gate Attendance System using ATmega32 & RDM6300 (UART Interrupts)
3. Optical Fingerprint Locker System using ATmega32 Microcontroller & R307 Module
4. ATmega32 Digital Code Lock with Servo Latch Control using Hardware PWM (Timer1)
5. Smart Bank Locker Security System using ATmega32, IR Sensor & DC Motor Driver
Industrial & Measurement Systems
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1. Non-Contact Digital Tachometer / RPM Meter using ATmega32 Input Capture Unit (ICP1)
2. 0-30V Digital Voltmeter with Over-Voltage Trip Controller using ATmega32 10-Bit ADC
3. AC Phase Angle Dimmer & Motor Speed Controller using ATmega32 Zero-Crossing Interrupt
4. Digital Frequency Meter & Counter using ATmega32 Hardware Counter Registers
5. ATmega32 Automatic Street Light Control System using LDR & PIR Motion Sensor
Advanced Displays & Peripheral Interfacing
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1. Interfacing 1.8" ST7735 Color TFT Display with ATmega32 using Bare-Metal SPI Driver
2. ATmega32 Real-Time Clock (RTC DS3231) & Auto School/Factory Bell Scheduler (I2C/TWI)
3. Ultrasonic Distance Measurement & Visual Radar Display using ATmega32 & HC-SR04
4. Digital Temperature & Humidity Monitor using ATmega32, DS18B20 & 16x2 Character LCD
5. 8x8 LED Matrix Scrolling Text Display using ATmega32 Microcontroller Registers
Utility Tools & Motor Control
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1. Stepper Motor Direction & Speed Control System using ATmega32 & ULN2003 Driver
2. Bidirectional Visitor Counter & Auto-Room Light Controller using ATmega32
3. ATmega32 Ultrasonic Water Level Indicator & Automatic Pump Controller Circuit
4. Digital Alarm Clock with Programmable Buzzer Timer using ATmega32 16-Bit Timer
