ESP8266 or ESP32: Make sure the relay module's VCC and GND are properly connected to the board. Explanation: WiFi Setup: The code connects the ESP8266 to your WiFi using the provided ssid and password ...

This project demonstrates how to control four relays using an ESP8266 (NodeMCU) and the Arduino IoT Cloud. The relays can be toggled locally via physical switches or remotely using a cloud-based ...

Despite a wealth of tutorials for setting up and writing code for the ESP8266 WiFi module, there has not been much of anything on programming this cheap wireless module with the Arduino IDE. Finall… ...