RTC

Timing

Library for I2C based RTCs (DS1307, DS3231, PCF8563, PCF8523, MCP7940).
Enables the functionality for clock reading, clock setting, alarms and timers of I2C RTCs.

Author: Manjunath CV

Maintainer: Manjunath CV

Read the documentation

Compatibility

This library is compatible with the avr, mbed_nano, mbed_rp2040, esp32, esp8266, renesas_uno architectures so you should be able to use it on the following Arduino boards:

• Arduino Micro
• Arduino Leonardo
• Arduino Mega
• Arduino Nano
• Arduino Nano 33 BLE
• Arduino Uno
• Arduino Yún
• Arduino UNO R4 Minima
• Arduino UNO R4 WiFi
• Arduino Nano RP2040 Connect

Compatibility Note

Note: while the library is supposed to compile correctly on these architectures, it might require specific hardware features that may be available only on some boards.

Releases

To use this library, open the Library Manager in the Arduino IDE and install it from there.

• 1.8.0 (latest)
• 1.7.1
• 1.6.0
• 1.0.2
• 1.0.1
• 1.0.0