⏰ DS3231 RTC Module – Accurate I2C Real Time Clock with AT24C32 EEPROM & Battery Included by Ekastore
The DS3231 RTC (Real Time Clock) module is a highly accurate I2C-based timekeeping module ideal for projects requiring precise time data. It includes a temperature-compensated crystal oscillator, onboard AT24C32 EEPROM, and a CR2032 battery, ensuring uninterrupted timekeeping even when power is lost.
✅ Key Features:
-
✅ Highly Accurate: ±2ppm accuracy with built-in temperature compensation (DS3231).
-
✅ Battery Backup: Includes CR2032 coin cell battery for timekeeping without external power.
-
✅ Integrated EEPROM: 32Kb AT24C32 EEPROM for user data storage.
-
✅ I2C Interface: Easy communication with Arduino, Raspberry Pi, ESP32, and other microcontrollers.
-
✅ Low Power Consumption: Operates in ultra-low power mode when on battery.
⚙️ Specifications:
| Parameter | Details |
|---|---|
| RTC IC | DS3231 |
| EEPROM | AT24C32 (32Kb = 4KB) |
| Voltage Range | 3.3V – 5.5V |
| Communication | I2C (Address: 0x68 for RTC, 0x57 for EEPROM) |
| Battery Type | CR2032 (included) |
| Dimensions | ~38mm x 22mm |
| Accuracy | ±2ppm from 0°C to +40°C |
🔧 Pin Configuration:
| Pin | Function |
|---|---|
| VCC | Power supply (3.3V or 5V) |
| GND | Ground |
| SDA | I2C Data |
| SCL | I2C Clock |
📚 Use Cases:
-
Data logging systems with timestamping
-
Alarm clocks and countdown timers
-
Scheduled automation (e.g., garden watering)
-
Attendance systems or RFID logs
-
Smart IoT devices needing time tracking
📦 Package Includes:
-
1 × DS3231 RTC Module with AT24C32 EEPROM
-
1 × Pre-installed CR2032 Battery
Reviews
There are no reviews yet.