DS1307 Real-Time Clock (RTC) Module – With Battery Backup & DS18B20 Sensor Option

📅 DS1307 Real-Time Clock (RTC) Module – With Battery Backup & DS18B20 Sensor Option

The DS1307 RTC Module is a reliable, battery-backed real-time clock solution for keeping accurate time and date in your Arduino and embedded projects. Featuring an onboard CR2032 coin cell holder, this module retains timekeeping even when the main power is off.

What makes this version special is its optional soldering pads for a DS18B20 digital temperature sensor, allowing you to combine time-stamping with temperature logging in a single compact board. Ideal for data logging systems, clocks, alarms, scheduling systems, and environment monitoring setups.

The module communicates via the I2C interface, making it compatible with most microcontroller platforms including Arduino, ESP32, STM32, Raspberry Pi, and more.

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✅ Key Features:

• 🧠 RTC Chip: DS1307 – Real-Time Clock

• 📆 Timekeeping: Tracks seconds, minutes, hours, day, date, month, and year (with leap-year correction)

• 🔋 Battery Backup: Supports CR2032 coin cell (not included) for uninterrupted timekeeping

• 🔌 Interface: I2C (SCL, SDA) – easy to wire with minimal pins

• 🌡️ DS18B20 Support:

  • Onboard pads for soldering an optional DS18B20 digital temperature sensor

  • Ideal for combined time + temperature logging

• ⚡ Voltage: 5V logic level

• 📦 Mounting: Standard header pins for breadboard or PCB use

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🧰 Applications:

• Digital clocks and alarms

• Data logging systems (time + temperature)

• Timed automation or lighting systems

• Event scheduling and timestamping

• Arduino or ESP32-based smart sensors

• Battery-powered embedded timekeeping

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🔗 Why Choose This RTC Module?

This DS1307 module stands out by offering both timekeeping and environmental sensing in one board. The ability to solder a DS18B20 sensor makes it perfect for projects that need accurate logs of both time and temperature—without needing separate modules. Combined with open-source libraries like RTClib and OneWire, it’s a flexible and beginner-friendly option for a variety of projects.

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📦 Package Includes:

• 1 x DS1307 RTC Module (with battery holder)

• (Battery and DS18B20 sensor not included)

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🔍 Keywords:

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