/* Blink Example This example code is in the Public Domain (or CC0 licensed, at your option.) Unless required by applicable law or agreed to in writing, this software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */ #include #include "freertos/FreeRTOS.h" #include "freertos/task.h" #include "driver/gpio.h" #include "sdkconfig.h" /* Can run 'make menuconfig' to choose the GPIO to blink, or you can edit the following line and set a number here. */ #define BLINK_GPIO CONFIG_BLINK_GPIO void app_main() { /* Configure the IOMUX register for pad BLINK_GPIO (some pads are muxed to GPIO on reset already, but some default to other functions and need to be switched to GPIO. Consult the Technical Reference for a list of pads and their default functions.) */ gpio_pad_select_gpio(BLINK_GPIO); /* Set the GPIO as a push/pull output */ gpio_set_direction(BLINK_GPIO, GPIO_MODE_OUTPUT); while(1) { /* Blink off (output low) */ printf("Turning off the LED\n"); gpio_set_level(BLINK_GPIO, 0); vTaskDelay(1000 / portTICK_PERIOD_MS); /* Blink on (output high) */ printf("Turning on the LED\n"); gpio_set_level(BLINK_GPIO, 1); vTaskDelay(1000 / portTICK_PERIOD_MS); } }