ESP8266 Community Forum

Here you will find a diff to apply to the last SDK (at example)

the example will auto start the tcp/udp socket server and accept LED1 for GPIO2 HIGH and LED0 for setting GPIO2 LOW

the command LED will return the status of the GPIO, all this is done via a TCP connection to the module no need for extra mcu/arduino's

https://gist.github.com/zarya/f6c94d37d861a9079710

thx for sharing your example!

I've seen the nop loop - do you know the delay function? (os_delay_us())
How did you find out, how long each command needs to execute?

There is also already a gpio_init() in gpio.h.

M0ebius wrote:thx for sharing your example!

I've seen the nop loop - do you know the delay function? (os_delay_us())
How did you find out, how long each command needs to execute?

There is also already a gpio_init() in gpio.h.

i did not know of the os delay function so i just tryed something with nop after all the delay is prob. not needed.

and gpio.h is not included in the at example

@zarya

I use Your wonderful modification from gist "Simple autostarting example to toggle GPIO2 via tcp/udp",
it contains everything I need with one small exception

I moved Your code from user_main.c to additional wifi_connect.c file

and everything works ok

but...
my esp8266 will operate in three networks, with of course different SSIDs/PASSWORDs: in my home, sister home, brother home
so...how to add functionality to check and select appropriate/available network on ESP8266 startup?
...and finally, when any of declared networks is not available then start ESP in AP mode with its own declared SSID