ESP8266 Community Forum

Posted: **Thu Nov 20, 2014 1:13 pm**

rx gpio3 tx gpio1. i am using like this

///set rx and tx for gpio
PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0RXD_U, FUNC_GPIO3);
PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0TXD_U, FUNC_GPIO1);

///rx gpio on
gpio_output_set(BIT3, 0, BIT3, 0);
///rx gpio off
gpio_output_set(0, BIT3, 0, BIT3);

scargill wrote:but which ones are they.. gpio?? and ??

kingfisher wrote:You can reconfigure tx and rx pins as gpio

Posted: **Fri Nov 21, 2014 12:44 pm**

correction:

see http://g-lab.ca/esp8266ex-gpio-application-programming-interface/

Code: Select all

///rx gpio on
gpio_output_set(BIT3, 0, BIT3, 0);
///rx gpio off
gpio_output_set(0, BIT3, BIT3, 0);


///rx gpio unconnected (disabled)
gpio_output_set(0, BIT3, 0, BIT3);

ESP8266 Community Forum

RST as GPIO16

Re: RST as GPIO16

Re: RST as GPIO16