DS3231 High Precision RTC Module

1000 DA

The DS3231 is a highly accurate I²C real-time clock module with a temperature-compensated crystal oscillator and battery backup, ensuring reliable timekeeping even during power outages.

Category: RTC (Real-Time Clock)
Stock: In stock

1000 DA

In stock

About this item

🕒 DS3231 High Precision RTC Clock Module

💡 Temperature-Compensated I²C Real-Time Clock

The DS3231 offers an ultra-precise real-time clock with integrated crystal and temperature sensor. Its built-in battery backup ensures timekeeping continues during power outages, and it features alarms, square-wave output, and internal registers accessible over I²C.

🛡️ Built-In Features & Reliability

🔋 CR2032/CR1220 battery backup support
🌡️ Integrated temperature sensor (±3°C accuracy)
🔄 Temperature-compensated crystal oscillator (TCXO)
⏱️ Two programmable time alarms
📏 Square wave output at 1Hz, 4kHz, 8kHz, or 32kHz

📦 Compact & Versatile

The DS3231 module is ideal for any project requiring date and time — from simple clocks to complex data loggers. It connects easily via I2C and fits well with Arduino, ESP32, STM32, and Raspberry Pi systems.

🛠️ Applications

📆 Clocks and calendar displays
🗄️ Data loggers and event trackers
🔔 Alarm systems and time scheduling
🌡️ Time-based sensors and automation
💾 Backup timekeeping for embedded systems

⚠️ Notes

🔋 Compatible with CR2032 or CR1220 backup batteries (not always included)
⚙️ Ensure proper I2C address handling if using multiple I2C devices
🧪 Some modules include pull-up resistors — check before adding your own

✨ Key Features

⏰ Accuracy: ±2ppm from 0°C to +40°C
📅 Timekeeping: Seconds, Minutes, Hours, Day, Date, Month, Year
🔌 Interface: I²C (400kHz)
🔋 Backup: Battery-supported timekeeping
📏 Dimensions: ~38mm x 22mm (with battery holder)
📦 Operating voltage: 3.3V–5V