In the world of embedded systems and microcontroller-based projects, EEPROM (Electrically Erasable Programmable Read-Only Memory) modules play a crucial role in non-volatile data storage. Among the popular choices, the AT24C256N I2C EEPROM Memory Module stands out for its simplicity, reliability, and ease of use. In this blog, we’ll dive into the details of the AT24C256N module, its features, working principles, applications, and project ideas to help you make the most of it. Explore our range of memory modules at Elecsynergy to find the perfect fit for your project needs.

What is the AT24C256N I2C EEPROM Module?

The AT24C256N is a 256-Kilobit EEPROM module that communicates via the I2C (Inter-Integrated Circuit) protocol. It’s designed for storing data that must persist even when power is removed, such as configuration settings, calibration data, and logs.

Key Features:

• Memory Capacity: 256 Kilobits (32 Kilobytes)
• Interface: I2C protocol with two-wire communication (SDA and SCL)
• Operating Voltage: 2.7V to 5.5V, compatible with most microcontrollers
• Page Write Capability: 64 bytes per page
• Write Cycle Time: 5ms typical
• Durability: 1,000,000 write/erase cycles
• Data Retention: Over 100 years

📌 Product Recommendation: Check out our AT24C256N I2C EEPROM Module to add reliable data storage to your projects.

How Does the AT24C256N Work?

The AT24C256N EEPROM module communicates using the I2C protocol, a two-wire interface where:

• SCL (Serial Clock Line) handles the clock signal for synchronization.
• SDA (Serial Data Line) transfers the data.

Each AT24C256N module has a unique I2C address, making it possible to use multiple EEPROMs on the same bus. Data is written and read in pages (blocks of 64 bytes), making it efficient for applications requiring structured data storage. Microcontrollers like Arduino, Raspberry Pi, and ESP32 can easily interface with this module using libraries such as Wire.h.

Real-World Applications

The AT24C256N is incredibly versatile and finds applications across various domains:

1. Data Logging:
   • Store sensor readings over time for later retrieval or analysis.
2. Configuration Storage:
   • Save user settings, such as preferences or calibration data, in embedded systems.
3. IoT Devices:
   • Retain device configurations and network credentials.
4. Digital Signature Storage:
   • Securely store keys or signatures for cryptographic purposes.
5. Portable Electronics:
   • Maintain saved states in portable gaming consoles or calculators.

Project Ideas Using the AT24C256N EEPROM Module

Here are some exciting project ideas to inspire your next build:

1. Secure Login System

Design a simple login system where usernames and passwords are stored in the EEPROM. The system checks the entered credentials against stored data to grant access.

• Components Needed:
  • AT24C256N I2C EEPROM Module
  • Keypad Module
  • LCD Display
  • Arduino Uno

2. Sensor Data Logger

Build a device that logs temperature, humidity, or other sensor data into the EEPROM for later retrieval.

• Components Needed:
  • AT24C256N I2C EEPROM Module
  • DHT11/DHT22 Sensor
  • Arduino Nano
  • SD Card Module (optional for backup)

3. IoT Device Configuration Backup

Create an IoT device that saves Wi-Fi credentials and other configurations in EEPROM to ensure seamless reconnection after power loss.

• Components Needed:
  • AT24C256N I2C EEPROM Module
  • ESP8266/ESP32
  • OLED Display for feedback

4. EEPROM-Based Quiz Game

Develop a quiz game where questions and answers are stored in the EEPROM. Players answer questions displayed on an LCD, and scores are tracked.

• Components Needed:
  • AT24C256N I2C EEPROM Module
  • Push Buttons
  • LCD Display
  • Arduino Uno

5. Customizable LED Controller

Create a programmable LED controller that saves user-defined patterns and colors in the EEPROM. On reboot, the controller retrieves and runs the saved patterns.

• Components Needed:
  • AT24C256N I2C EEPROM Module
  • WS2812B LED Strip
  • Arduino Uno
  • Rotary Encoder for user input

Why Choose Elecsynergy for Your EEPROM Modules?

At Elecsynergy, we offer top-quality EEPROM modules and accessories to power your projects. Here’s why you should shop with us:

• Premium Quality: All components are rigorously tested for reliability.
• Affordable Prices: Get the best value without compromising on quality.
• Technical Support: Access resources and expert advice to succeed in your projects.

Conclusion

The AT24C256N I2C EEPROM Memory Module is a powerful and versatile solution for your non-volatile data storage needs. Whether you’re building a data logger, a secure login system, or an IoT device, this module is the perfect choice. Order your AT24C256N EEPROM Module today from Elecsynergy and bring your ideas to life!

For more project ideas, tutorials, and premium-quality components, visit Elecsynergy.com – Your trusted partner in electronics innovation!