AVR is a type of microcontrollers, also known as AVR family microcontrollers used for developing embedded systems. AVR family microcontrollers were introduced by Atmel in 1996 and later acquired by Microchip Technology in 2016.
The key feature about avr controllers was that it was the first microcontroller families that used on chip flash memory, whereas all other microcontrollers at the time used ROM, EPROM or EEPROM.
Atmega328 & Atmega328P
Atmega328
- Atmega328 is a 8 bit high performance RISC Based Microcontroller with 28 Pins
- 32KB ISP flash memory, 1KB EEPROM, 2KB SRAM
- 23 IO Pins
- 32 general purpose working registers
- SPI serial port, 6-channel 10-bit A/D converter
- Operating Voltage: 1.8 – 5.5V
Atmega328P
One only major difference between Atmega328 & 328P is operating power.
- Operating Voltage: 2.7 – 5.5V
Atmega Pin Diagram Explanation
AVR / Atmega Microcontroller Projects
Below are examples of projects that involve use of Atmega328 & Atmega328P Microcontrollers.
Footstep Mobile Charging With RFID

In this footstep power generation project, we are generating power with the help of human’s footsteps; this power is then used to charge battery which inturn charges mobile phones.

In this footstep power generation project, we are generating power with the help of human’s footsteps; this power is then used to charge battery which inturn charges mobile phones.
LIDAR based Self Driving Car

A Smart self driving car that uses LIDAR for automatic navigation using dc motors for drive and a servo motor for direction control driverless driving.

A Smart self driving car that uses LIDAR for automatic navigation using dc motors for drive and a servo motor for direction control driverless driving.
IOT Theft Detector Energy Meter

Smart energy meter that transmits energy meter readings directly over internet along with a theft detection feature to detect energy thefts with ease.

Smart energy meter that transmits energy meter readings directly over internet along with a theft detection feature to detect energy thefts with ease.
Atmega Plant Irrigation System

This plant irrigation system project senses the moisture content of the soil to provide a correct amount of irrigation to agricultural fields and make sure the effective growth within the plant.

This plant irrigation system project senses the moisture content of the soil to provide a correct amount of irrigation to agricultural fields and make sure the effective growth within the plant.
Fog Based Dry Handwash Machine

When the user rubs soap on his/her hands and inserts it into the system, this automatically triggers a water fogging system that converts water in the tank to fog and drives it in the handwash chamber.

When the user rubs soap on his/her hands and inserts it into the system, this automatically triggers a water fogging system that converts water in the tank to fog and drives it in the handwash chamber.
Third Eye For Blind Ultrasonic Vibrator

THird Eye is designed to help the blind to overcome the lack of visual sense, by using other senses like sound and touch. It uses audio and vibration signals

THird Eye is designed to help the blind to overcome the lack of visual sense, by using other senses like sound and touch. It uses audio and vibration signals
More AVR/Atmega Projects
- Solar Floor Cleaner Robot
- Arduino Covid Disinfection Box
- Arduino Multi Player Air Hockey Table
- 360° Filmmaking Drone For 4K HD Video
- Dry Handwashing Machine By Fog Disinfection To Save Water
- IOT Covid Patient Health Monitor in Quarantine
- Social Distancing & Mask Monitor Drone For COVID
- DIY Oxygen Concentrator Generator For Covid 19
- DIY Ventilator using Arduino For Covid Pandemic
- Auto Temperature Detector for Entrance For Covid Safety
- Atmega based Plant Irrigation System using Capacitive Moisture Sensor
- IOT based Manhole Detection and Monitoring System
- IOT based Smart Energy Meter Monitoring with Theft Detection
- Robotic Solar Lawn Mower with Theft Detection
- Automated Vehicle Umbrella Tent for Hailstorm Protection
- Smart Home Automation System with Light Dimmer
- Automatic Rain Water Sensing Umbrella
- Obstacle Detection using 360 Degree Military LIDAR Scanner
- IOT based Three Phase Power Failure Monitoring with SMS Alerts
- Cashless Money Transfer Wrist Band
- LIDAR based Self Driving Car
- Quadriplegics Wheelchair Control by Head Motion using Accelerometer
- Biometric based Exam Gate Authentication System with SMS Alert
- Design and Fabrication of Vertically Wall Climbing Glass Cleaning Robot
- Heart Rate Monitoring using Flexible Printed Circuit Board
- Canteen and Cafeteria Management System using RFID
- Advanced Footstep Power Generation System using RFID for Charging
- ACPWM Control System for Induction Motor using AVR Microcontroller
- ATMEGA Microcontroller based Commercial Power Saver Project
- Portable Health Checker Device with Blood Oxygen Monitor Project
- IOT Based Automatic Vehicle Accident Detection and Rescue System
- RFID Based Petrol Pump Automation System
- Greenhouse Monitoring and Control System using IOT Project
- IOT Based Heart Monitoring System Using ECG
- Dual Axis Solar Tracking System with Weather Sensor
- Rotating Solar Inverter Project using Microcontroller 50W
- Vertical Axis Wind Turbine With Inverter
- Motion Controlled Pick & Place Obstacle Avoider Robot
- Regenerative Breaking With Power Monitor
- IOT Circuit Breaker Project
- Third Eye For Blind Ultrasonic Vibrator Glove
- Android Powered Juice Vending Machine
- IOT Mining Tracking & Worker Safety Helmet
- Grid Tie Rotating Solar Rooftop System Atmega
- IOT Prison Break Monitoring & Alerting System
- Multicontroller based Wheelchair Safety using Android, Touch, Speech & Gesture Control
- Accident Avoiding System with Crash Detection and GPS Notification
- IOT Energy Meter with Current, Voltage and Cost Monitoring System
- Wireless Humanoid Bionic Arm on Robotic Vehicle
- IOT Paralysis Patient Health Care Project
- Fire Fighter Robot with Fire Resistant Body
- Portable Bluetooth Printer Project
- Wifi Based Secure Wireless Communication Using RSA
- RFID Based Smart Master Card For Bus Train Metro Ticketing
- IOT Car Parking System
- Wearable Health Monitoring System Project
- Motion Based Maze Solver Using Android
- Motion Based Home Automation & Temperature Controller
- Zigbee Based Gas Fire Detection System
- IOT Garbage Monitoring With Weight Sensing
- Bill Prediction & Power Factor Measuring With SMS Alert
- RFID Mobile Charging System
- Ultrasonic Blind Stick With GPS Tracking
- Automatic Lemon Juice Vending Machine
- IOT Electronic Door Opener
- Induction Motor Speed & Direction Controller
- IOT Asset tracking System
- IOT Based ICU Patient Monitoring System
- IOT Alcohol & Health Monitoring System
- IOT Based Antenna Positioning System
- IOT Streetlight Controller System
- IOT Traffic Signal Monitoring & Controller System
- Biometric Attendance System Over IOT
- Vehicle Speed Limiter Project
- Solar Peizo Hybrid Power Charging System
- Zigbee Based Room Temperature Controller Project
- IOT Irrigation Monitoring & Controller System
- Load Sensing Seats With Lights Fan Control
- Induction Motor Speed Controller Project
- Hybrid Inverter With Solar Battery Charging
- Automated Paralysis Patient Healthcare System Project
- Self Balancing Robot Project
- DC Motor Speed Control Using GSM
- Fingerprint Based Bank Locker System
- Fingerprint Vehicle Starter Project
- Fingerprint Bank Locker
- Joystick Controlled Steering Mechanism Vehicle
- Fingerprint Based Security System
- Wireless Patient Health Monitoring
- Advanced Footstep Power Generation System
- Coin Based Water Dispenser System
- Rough Terrain Beetle Robot
- Traffic Density Control With Android Override Using Avr
- Programmable Energy Meter With Bill Estimation
- Secure Fingerprint Bank Locker With Image Capture
- Smart Room Temperature Controller Atmega
- Smart Solar Grass Cutter With Lawn Coverage
- High Performance Hovercraft With Power Turning
- Heart Attack Detection By Heart Beat Sensing
- Alcohol Sensing Alert with Engine Locking Project
- Smart Wireless Battery Charging With Charge Monitor Project
- Soldier Health & Position Tracking System
- Zigbee Based Secure Wireless Communication Using AES
- Prepaid Energy Meter With Theft Detection
- IOT Garbage Monitoring System
- GSM Patient Health Monitoring
- IOT Liquid Level Monitoring System
- Anti Drowning System With Remote Alert
- Hovercraft Controlled By Android
- Fire & Gas Accident Avoider System
- GPS Vehicle Tracking & Theft Detection
- Automated Car Parking With Empty Slot Detection
- Vehicle Movement Street Light With Light Sensing Atmega
- Fully Automated Solar Grass Cutter
- GSM based Industry Protection System
- CNG/LPG Gas Leakage Accident Prevention System
- Accident Identification and alerting project
- Remote Controlled Robotic Arm Using Rf
- Android Controlled Robotic Arm
- Hand Motion Controlled Robotic Arm
- Hand Motion Controlled Robotic Vehicle
- Gsm Based Weather Reporting (Temperature/Light/Humidity)
- Fingerprint Authenticated Device Switcher
- Fingerprint Based Exam Hall Authentication
- Mobile Charging On Coin Insertion
- Mini Windmill Power Generation Project
- Dual Power Generation Solar Plus Windmill Generator
- Rain Sensing Automatic Car Wiper
- Remote Stepper Motor Controller System
- RTC Based Pump Switcher
- Automatic Unauthorized Parking Detector With SMS Notification To Owner
- Ultrasonic Blind Walking Stick
- Billing System Based On RFID
- Alcohol Sensing Display With Alarm Project
- CNG/LPG Gas Accident Prevention With Gsm Alert
- Prepaid Electricity Billing Meter
- IOT Weather Reporting System
- IOT Air & Sound Pollution Monitoring System
- Energy Meter Monitoring Over IOT
- IOT Based Person/Wheelchair Fall Detection
- IOT Patient Health Monitoring Project
- IOT Heart Attack Detection & Heart Rate Monitor
- IOT Based Toll Booth Manager System