Trying a simple led blinking program I could not get the builtin led on a LoLin Node MCU v3 working. The
LED_BUILTIN constant is set to pin 16 / GPIO16 / D0.
Reading several articles and QA I think that the Node MCU boards are supposed to have a the on-board led on pin 16. However, if I address this port nothing happens.
With the same code I can blink the data led which is on a RX pin, pin 2.
Is the builtin led missing on the LoLin Node MCU v3, or could it be that the led on my board is broken?