The MD0126 is a real-time clock (RTC) module based on the DS1307 chip, designed to provide accurate timekeeping for Arduino, Raspberry Pi, and other microcontroller platforms. It includes an onboard 24C32 EEPROM for additional data storage and communicates via the I2C interface.

Specifications

• RTC Chip: DS1307
• EEPROM: 24C32, 32K I2C memory
• Interface: I2C (SCL, SDA)
• Operating Voltage: 5V
• Backup Battery: Supports CR2032 (not included)
• Dimensions: Approx. 27 × 28 × 8.4 mm

Key Features

• Maintains accurate time (seconds, minutes, hours, day, date, month, year)
• Automatic leap year compensation up to 2100
• Onboard EEPROM for storing user data
• Battery backup ensures timekeeping during power loss
• Compatible with Arduino and other I2C-capable boards
• Requires a CR2032 coin cell battery for RTC backup (sold separately)