Blynk connects but does not turn on led

Need Help With My Project
1

Hello, I have created a button to turn on my led nodemcu 2 and I have complied the example blynk / board_wifi / nodemcu. It connects but does not turn on led. I’ve tried with blynk / board_wifi / ESP8266Standalone and it does not work either.
Can anybody help me

2

Which example you have uploaded, how the led has been connected and to which GPIO (pin)?

3

NODEMCU
BLYNK.NODEMCU.png1024×768 63.9 KB

to pin 2

4

GPIO2 or D2?
This is the pin mapping for NodeMCU board:

"pins": {
                "D0":  16, "D1":   5, "D2":   4,  "D3":  0, "D4":  2,
                "D5":  14, "D6":  12, "D7":  13,  "D8": 15, "D9":  3,
                "D10":  1
            },

For others, check this link:

5

thank you very much. The error was that I should put gp4 instead of pin and had put 2 in the on.
Solved and working, thank you very much marvin7

6

That’s what I thought :smiley: