DS1302 Real Time Clock RTC Module (No Battery)

DHT11 Temperature and Humidity Sensor module

DS1302 is DALLAS company launched a trickle charge clock chip, containing a real-time clock/calendar and 31 bytes of static RAM, communicating through serial interface simple and single-chip microcomputer. The real-time clock/calendar circuit provides seconds, hours, days, weeks, months, years of information, a number of days in the month and leap year can automatically adjust. The clock operation instructions through the AM/PM decided to use a 24 or 12-hour format.

Between DS1302 and single-chip microcomputer can simply use synchronous serial communication method, only three lines:
(1) RST
(2) I/O reset the data line
(3) SCLK serial clock.

Clock /RAM read/write data to a byte character set or as many as 31-byte communication. DS1302 work power consumption is very low to keep the data and clock information when power is less than 1mW

Wiring method (to provide procedures, for example, can pick up any IO port, in the procedure to modify the port definitions :
VCC:+5V/3.3V
GND: GND
CLK: P02
DAT: P01
RST: P00

Note:

1.VCC and GND do not reverse, so as not to burn the chip
2.51 SCM P0 port to receive a pull-up resistor, if your computer is not connected pull-up resistor, the data can be the string to the other port.

Technical Details

Features

Applications :

• Embedded Systems: Keeping track of date and time in microcontroller-based systems like Arduino and Raspberry Pi.
• Data Logging Systems: Storing timestamps for recorded data such as temperature or sensor readings.
• Home Automation: Time-based control of appliances, lighting, or HVAC systems.
• Attendance Systems: Logging entry and exit times in timekeeping systems.
• Digital Clocks and Timers: Building standalone clocks or countdown/up timers.
• Event Tracking: Scheduling and timestamping events in alarms or reminders.
• IoT Devices: Synchronizing data transfers or scheduling tasks in Internet of Things applications.
• Scheduling Systems: Running time-sensitive operations in robotics or industrial automation.
• Communication Systems: Synchronizing logs or messages in communication devices.
• Educational Projects: Learning timekeeping in electronics for students and hobbyists.

Integration with Arduino: DS1302 RTC Module

Sample Code

Physical Attributes

Package Includes