ESP8266 Community Forum

But according to this link the led is connected to gpio 2 with a resistor.
I am confused. Please check this out.
http://makezine.com/2015/04/01/installi ... ontroller/

Connect via a resistor is ok. That won't pull GPIO2 too low.

Baoshi , Thanks for that information. What's the resistor ohm should be in order to prevent GPIO 2 from touching the ground via LED connection at reboot time?

uber4 wrote:

pzwolinski wrote:I'm having the same problem...

I have an LED connected to between GPIO2 and GND. When my ESP01 is restarted, it will not boot normally, which is a bummer. If I temporarily disconnect the LED circuit, the board will boot normally, and after reconnecting, my program works as desired (able to toggle the LED over wifi).

Is there anything I can do to get this unit booting normally without having to leave GPIO2 floating?

I had the same problem and I fixed with a 2,2k pull up resistor (4,7k or higher was not working).
Doing this GPIO2 will be high by default while it resets (1-2 seconds), but you allways can write to low.

I have the same problem here ! If I restart and dont leave GPIO 2 floating or high then the blue led is shining.
Can you show me how to solve it ?thanks