Description

The DS3231 are low-cost, extremely accurate I2C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. No need for an external crystal.

The ZS-042 RTC Real Time Clock Module is a highly accurate timekeeping module designed for Arduino, Raspberry Pi, IoT systems, automation projects, and embedded electronics applications. Because it uses the reliable DS3231 real-time clock chip, this module maintains accurate time and date information even when the main power supply is disconnected.

Additionally, the built-in battery backup system ensures continuous operation during power failures. Therefore, the ZS-042 RTC module is an excellent solution for data logging systems, alarm clocks, automation timers, scheduling systems, and smart electronics projects using the Arduino UNO R3.

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What is the ZS-042 RTC Module?

The ZS-042 is a real-time clock module based on the DS3231 RTC chip. Moreover, it provides accurate tracking of seconds, minutes, hours, days, months, and years while consuming very little power.

Because of its integrated battery backup feature, the module continues keeping time even after the main system powers off. As a result, it is widely used in embedded systems requiring precise time synchronization and scheduling functions.

At the same time, the module communicates easily with microcontrollers through the I2C interface, making it beginner-friendly for electronics prototyping on the 830 Tie Point Breadboard.

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Key Features

• High-accuracy DS3231 RTC chip
• Real-time clock and calendar functionality
• Battery backup support
• Low power consumption
• I2C communication interface
• Accurate date and time tracking
• Compact and easy-to-use module
• Suitable for Arduino and Raspberry Pi
• Stable long-term timekeeping
• Excellent for automation and scheduling systems
• Easy integration into embedded electronics projects

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Technical Specifications

• Module Name: ZS-042 RTC Module
• RTC Chip: DS3231
• Communication Interface: I2C
• Operating Voltage: 3.3V to 5V
• Backup Battery Support: Yes
• Time Tracking:
  • Seconds
  • Minutes
  • Hours
  • Day
  • Month
  • Year
• Low Power Consumption: Yes
• Mounting Type: PCB module
• Applications: Timekeeping, data logging, automation

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Applications

The ZS-042 RTC module is widely used in electronics and embedded systems that require accurate timekeeping. Furthermore, its reliable operation makes it suitable for educational, DIY, and professional projects.

Common applications include:

• Data logging systems
• Smart clocks
• Arduino automation projects
• Alarm systems
• Time-based relay control
• Attendance systems
• IoT scheduling systems
• Embedded timing applications
• Smart home automation
• Robotics timing control
• Raspberry Pi projects
• Sensor data timestamping using the Micro SD Card Module

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Why Choose This RTC Module?

The ZS-042 RTC module offers highly accurate timekeeping while remaining affordable and easy to integrate into electronics systems. Additionally, the DS3231 chip provides better stability and precision compared to many basic RTC modules.

Moreover, the battery backup feature ensures reliable operation during power interruptions. Because of this, the module is ideal for long-term automation projects, smart monitoring systems, and data recording applications.

Overall, this RTC module is an excellent choice for makers, students, robotics developers, and embedded system engineers building advanced projects with the ESP8266 NodeMCU WiFi Module.

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Compatibility

The ZS-042 RTC Real Time Clock Module is compatible with:

• Arduino UNO
• Arduino Mega
• ESP32 boards
• NodeMCU ESP8266
• Raspberry Pi
• Embedded development systems
• IoT devices
• Robotics controllers
• Automation projects
• DIY electronics systems

Additionally, the module works perfectly with accessories such as the Jumper Wires Kit and other communication or storage modules.

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Tutorial Section

Getting started with the ZS-042 RTC module is simple and beginner-friendly. First, connect the module to your Arduino or Raspberry Pi using the I2C pins. After that, install a compatible RTC library and upload a sample sketch to read and display time data.

For example, you can use this module to:

• Create a digital clock
• Build a time-based automation system
• Add timestamps to sensor data
• Schedule relays and switches
• Develop attendance systems
• Build IoT monitoring devices

Additionally, you can combine the RTC module with the OLED SSD1306 Display Module to display live date and time information in real time.

Module parameters:
1 Size: 38mm (length) * 22mm (W) * 14mm (height)
2 Weight: 8g
3 Operating voltage :3.3 – 5 .5 V
4 clock chip: high-precision clock chip DS3231
5 Clock Accuracy :0-40 ℃ range, the accuracy 2ppm, the error was about 1 minute
6  programmable square-wave output
8 Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation
9 chip temperature sensor comes with an accuracy of ± 3 ℃
10 memory chips: AT24C32 (storage capacity 32K)

Wiring instructions (with Arduino uno r3 for example):
SCL → A5
SDA → A4
VCC → 5V
GND → GND