Skip to content

How to Connect a DS3231 to NodeMCU V3

  • by

To connect a DS3231 RTC module to an ESP8266-based NodeMCU V3 development board, we use the I2C interface. The default I2C interface pins of NodeMCU V3 board are the pins D1 (SCL) and D2 (SDA).

You may consult the article NodeMCU V3 Pinout and Configuration to verify the pin layout of a NodeMCU V3 development board.

Image showing connection of ds3231 to a nodemcu v3 development board
DS3231 RTC Module Connected to NodeMCU V3 ESP8266 Board
Zoomed view of the connection between ds3231 rtc module to a nodemcu v3 development board
DS3231 RTC Module Connected to NodeMCU V3 ESP8266 Board (Zoom View)

Programming with Arduino IDE

Related Articles on How to Connect a DS3231 to NodeMCU V3

Arduino Reference and Resources
How to Set up Arduino IDE for ESP8266 Programming
NodeMCU V3 ESP8266 Pinout and Configuration
How to Test NodeMCU V3 Using Esptool
How to Install Arduino IDE on Windows 10
How to Save and Restore ESP8266 and ESP32 Firmware
NodeMCU ESP-32S Pin Configuration

References on How to Connect a DS3231 to NodeMCU V3

NodeMCU on Wikipedia
Maxim DS3231 RTC

Leave a Reply

Your email address will not be published. Required fields are marked *