Virtuabotixrtch Arduino Library -

void setup() // Wake up Wire.begin(); myRTC.updateTime(); Serial.println(myRTC.minutes); // Enter deep sleep for 1 minute ESP.deepSleep(60e6);

Note: The Virtuabotix library automatically uses the Wire library under the hood, so you don't need to define pins unless using software I2C. virtuabotixrtch arduino library

void setup() Serial.begin(9600); lcd.init(); lcd.backlight(); void setup() // Wake up Wire

| RTC Module Pin | Arduino Uno/Nano | Arduino Mega 2560 | ESP8266 (NodeMCU) | | :------------ | :--------------- | :---------------- | :---------------- | | | 5V | 5V | 3.3V | | GND | GND | GND | GND | | SCL | A5 | 21 | D1 (GPIO5) | | SDA | A4 | 20 | D2 (GPIO4) | void setup() // Wake up Wire.begin()