• Integrated LED stat InternalLED
    This bloc will control the internal LED of the NODEMCU. (Video)


  • Digital writeDigitalWrite
    Write a HIGH or a LOW value to a digital pin. (Video)Example: blinking an LED connected to the port D0


  • Digital read Digitalread
    Reads the value from a specified digital pin, either HIGH or LOW.







  • Analog read:AnalogRead
    Reads the value from the specified analog pin. The NODEMCU has only one analog pin. It will map input voltages between 0 and 5 volts into integer values between 0 and 1023.


  • Analog write:
    Writes an analog value (PWM wave) to a pin. Can be used to light a LED at varying brightnesses or drive a motor at various speeds. The value parameter could be from 0 to 1023.
    Video: PWM


  • High – Low:
    Will return 1 you choose High or 0 if you choose Low.