DS-1307 real-time clock module RTC timing board memory MCU development board accessories compatible with arduino Quake Default Title

DS-1307 RTC Real-Time Clock Module – Arduino & MCU Compatible

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$44.07 $52.88
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DS-1307 real-time clock module RTC timing board memory MCU development board accessories compatible with arduino Quake Default Title
  • DS-1307 real-time clock module RTC timing board memory MCU development board accessories compatible with arduino Quake Default Title
  • DS-1307 real-time clock module RTC timing board memory MCU development board accessories compatible with arduino Quake
  • DS-1307 real-time clock module RTC timing board memory MCU development board accessories compatible with arduino Quake
  • DS-1307 real-time clock module RTC timing board memory MCU development board accessories compatible with arduino Quake
  • DS-1307 real-time clock module RTC timing board memory MCU development board accessories compatible with arduino Quake
  • DS-1307 real-time clock module RTC timing board memory MCU development board accessories compatible with arduino Quake Default Title
  • DS-1307 real-time clock module RTC timing board memory MCU development board accessories compatible with arduino Quake
  • DS-1307 real-time clock module RTC timing board memory MCU development board accessories compatible with arduino Quake
  • DS-1307 real-time clock module RTC timing board memory MCU development board accessories compatible with arduino Quake
  • DS-1307 real-time clock module RTC timing board memory MCU development board accessories compatible with arduino Quake
DS-1307 RTC Real-Time Clock Module – Arduino & MCU Compatible

DS-1307 RTC Real-Time Clock Module – Arduino & MCU Compatible

$44.07 $52.88
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DS-1307 Real-Time Clock (RTC) Module – Precision Timing for Arduino & MCU Projects

Take your microcontroller projects to the next level with the DS-1307 Real-Time Clock (RTC) Module. Designed for makers, hobbyists, and electronics engineers, this compact timing board delivers accurate timekeeping and onboard memory for a wide range of development applications. Whether you're building data loggers, smart alarms, automation systems, or IoT devices, this RTC module is the reliable timing backbone your project needs.

Made in Mainland China.

Key Features

  • DS-1307 RTC Chip: Industry-standard real-time clock IC that tracks seconds, minutes, hours, days, months, and years with high accuracy.
  • Arduino Compatible: Plug-and-play compatibility with Arduino boards (Uno, Mega, Nano, and more) and other popular MCU platforms.
  • Onboard Memory: Integrated non-volatile RAM retains timekeeping data even when the main power is removed, thanks to a backup battery slot (battery not included).
  • I²C Communication Interface: Simple two-wire I²C (TWI) serial interface for easy integration into your development board setup.
  • Compact PCB Design: Small form-factor board fits easily into breadboards, enclosures, and project builds without consuming excessive space.
  • Onboard Crystal Oscillator: 32.768 kHz crystal for stable, low-drift timekeeping performance.
  • Wide Voltage Range: Operates on 5V DC, compatible with standard Arduino and MCU power supplies.
  • HS-S30A Module Variant: The HS-S30A clock module configuration for reliable performance across projects.

Specifications

  • Module Model: HS-S30A Clock Module
  • Core IC: DS-1307
  • Interface: I²C (Two-Wire)
  • Operating Voltage: 5V DC
  • Crystal Frequency: 32.768 kHz
  • Memory: 56-byte non-volatile battery-backed RAM
  • Battery Type: CR2032 (not included)
  • Origin: Made in Mainland China
  • Brand: Hello STEM / GUANDO

What Can You Build?

The DS-1307 RTC module is the go-to component for projects that need accurate time and date tracking:

  • Data loggers with timestamped entries
  • Alarm clocks and countdown timers
  • Smart home automation scheduling
  • IoT devices requiring precise event timing
  • Educational electronics kits and STEM learning projects

Package Includes

  • 1 × DS-1307 RTC Timing Module (HS-S30A)

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Frequently Asked Questions

Q: Is the DS-1307 RTC module compatible with Arduino boards?

A: Yes! The DS-1307 real-time clock module is fully compatible with popular Arduino boards including the Arduino Uno, Mega, Nano, and other MCU development boards. It communicates via the I²C interface, which is natively supported by most Arduino platforms. Simply connect VCC, GND, SDA, and SCL pins and use a standard RTC library to get started.

Q: Does the DS-1307 RTC module require a battery to maintain time?

A: Yes, the module features a backup battery slot (compatible with a CR2032 coin cell battery, sold separately). When the main power is disconnected, the backup battery keeps the RTC running so your time and date data are preserved. Without the backup battery, the module will lose its time settings when powered off.

Q: What programming libraries are available for the DS-1307 module?

A: The DS-1307 is one of the most widely supported RTC chips in the maker community. For Arduino, you can use popular libraries such as RTClib (by Adafruit) or the DS1307RTC library. These are freely available through the Arduino Library Manager and include easy-to-follow example sketches for reading and setting the time.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.

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