ESP8266 Community Forum

- Sun May 03, 2015 7:25 am #16343 Hi to all
I recently entered into ESP8266 world with some ESP01 modules

I just succeeded into installing toolchain with last Arduinoo Ide (1.6.3)
I downloaded arduino-1.6.1-windows.zip and copied relevants directories into Arduino\hardware directory.
I also tried to use the Adafruit proxy but found that uses old sdk version (0.9.5 insted of 1.0.1_15_04_24)

Toolchain works and compiles Blink example.

Uploaded firmware with esptool Ok (after some tries due to manual GPIO0 reset)

But... no blinks from led

I used pin GPIO02 as led with pin number 2 is this correct ?

Any hints ?

Thanks

Vincenzo

(P.S. for administrators: I posted another message , but it apparently lost )

- Sun May 03, 2015 9:03 am #16350 How did you connect your LED to GPIO2 ?
GPIO2 need to be PullUp at startup.
If you connected LED to ground, it will pull it down, instead, you should reverse it to VCC along with current limiting resistor.

- Sun May 03, 2015 2:05 pm #16386 Thanks martinayotte it's working now
I found the problem was GPIO6 should be put HIGH to vcc.
So:
GPIO0: GND to flash VCC to run
GPIO2: output led
GPIO6: to VCC
After that i tried also an ESP07 module (this time with GPIO15 to GND) and worked too!
Next days I want to try wifi library. but for now I am satisfied

- Sun May 03, 2015 2:29 pm #16391 GPIO6 ?
What kind of module do you have ?