The library's simplicity makes it a favorite for a wide array of projects. Here are some common examples found in the community:
The DS1302 typically communicates via a 3-wire interface (CE, I/O, CLK). Connect them to your Arduino as follows (note: pin assignments can be changed in the code):
The library defines dayofweek where Monday = 1 . If you expect Sunday = 1, you must offset: virtuabotixrtch arduino library
: Define your clock, data, and reset pins directly in the constructor. Simple Time Setting : Uses a single function, setDS1302Time()
This library is specifically designed for the chip (often sold in a module with a battery and crystal oscillator). Unlike the more common DS1307 (I2C) or DS3231, the DS1302 uses a 3-wire interface similar to SPI. The library's simplicity makes it a favorite for
On tiny chips without hardware I2C, you can use any two digital pins:
Operates on ultra-low current (less than 300nA at 2.0V), making it ideal for backup battery operation using a CR2032 coin cell. Hardware Wiring and Connections If you expect Sunday = 1, you must
Standard examples often use the following pin configuration: SCLK (Clock) I/O (Data) : 5V or 3.3V (depending on module) Installation Guide