#include "ets_sys.h"
#include "osapi.h"
#include "gpio.h"
#include "os_type.h"
// ESP-12 modules have LED on GPIO2. Change to another GPIO
// for other boards.
static const int pin = 2;
static volatile os_timer_t some_timer;
void some_timerfunc(void *arg)
{
//Do blinky stuff
if (GPIO_REG_READ(GPIO_OUT_ADDRESS) & (1 << pin))
{
// set gpio low
gpio_output_set(0, (1 << pin), 0, 0);
}
else
{
// set gpio high
gpio_output_set((1 << pin), 0, 0, 0);
}
}
void ICACHE_FLASH_ATTR user_init()
{
// init gpio subsytem
gpio_init();
// configure UART TXD to be GPIO1, set as output
PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0TXD_U, FUNC_GPIO1);
gpio_output_set(0, 0, (1 << pin), 0);
// setup timer (500ms, repeating)
os_timer_setfn(&some_timer, (os_timer_func_t *)some_timerfunc, NULL);
os_timer_arm(&some_timer, 500, 1);
}