NodeMcu LED Blink not working.


I have a this board. I'll do the first time.

I connect to 4.pin led + 100R Resistor. LED Blink not working. How do we do it?

Did you install drivers for the on board usb-uart converter?

100 ohm gives around 30 mA at 3.3V, that's maybe out of the specs for esp8266.

In esp8266.com forum I have read that GPIO4 and GPIO5 pins are incorrectly labeled, just measure to verify.

Easiest way to make Blink example working is to replace "13" by "1", then the TX LED will blink:
http://www.esp8266.com/viewtopic.php?f=15&t=3434

Hermann.

I can not. Because I don't know English.

  1. NodeMcu connect to PC.
  2. CP1202 Driver Setup.
  3. Arduino IDE v1.6.4 (Portable) Setup
  4. Arduino-esp8266-sdk-1.0 all files copy to Documents/Arduino paste.
  5. http://arduino.esp8266.com/package_esp8266com_index.json enter. and Board manager ESP8266 install. and Arduino Restart
  6. Blink example setup board.
  7. Installation is complete. Not working Blink Led.