You have successfully uploaded and run a basic program on your NODEMCU ESP8266 module using the Arduino IDE. Feel free to explore and modify the code for more complex projects!

The slave responds with its address to the master. In summary, This project shows how the Arduino uno and the ESP8266 or nodeMCU communicate via I2C protocol. The nodeMCU as a master sends a "hello ...

The Arduino is an excellent first embedded development kit, provides a great introduction to electronics, and has the potential to get children into programming. [David] thinks throwing C at non-pr… ...