Blink rate queue

main/main.c

@@ -1,8 +1,16 @@
 #include "freertos/idf_additions.h"
+#include "freertos/projdefs.h"
 #include "tasks.h"
 #include <stdio.h>
 
+extern QueueHandle_t blink_rate_q;
+
 void app_main(void) {
     TaskHandle_t task_handle_blink;
+    blink_rate_q = xQueueCreate(10, sizeof(BlinkRate_t));
+
     xTaskCreate(task_blink, "task_blink", 1024, NULL, 0, &task_handle_blink);
+
+    BlinkRate_t br = {1000};
+    xQueueSend(blink_rate_q, &br, pdMS_TO_TICKS(20));
 }

main/task_blink.c

@@ -7,14 +7,23 @@
 
 #include "tasks.h"
 
+QueueHandle_t blink_rate_q;
+
 void task_blink(void *pvParams) {
+    u32 blink_delay = BLINK_DELAY;
+    u32 new_delay = {};
+    u32 level = 1;
+
     esp_rom_gpio_pad_select_gpio(LED_PIN);
     gpio_set_direction(LED_PIN, GPIO_MODE_OUTPUT);
 
     while (1) {
-        gpio_set_level(LED_PIN, 0);
-        vTaskDelay(BLINK_DELAY / portTICK_PERIOD_MS);
-        gpio_set_level(LED_PIN, 1);
-        vTaskDelay(BLINK_DELAY / portTICK_PERIOD_MS);
+        if (xQueueReceive(blink_rate_q, &new_delay, 0) == pdPASS)
+            blink_delay = new_delay;
+
+        level = !level;
+
+        gpio_set_level(LED_PIN, level);
+        vTaskDelay(blink_delay / portTICK_PERIOD_MS);
     }
 }

main/tasks.h

@@ -1,6 +1,9 @@
 #ifndef TASKS_H
 #define TASKS_H
 
+#include "freertos/idf_additions.h"
+#include <stdint.h>
+
 /*
  * This file exports all the individual tasks, avoiding tons of semi-empty headers.
  */
@@ -9,6 +12,25 @@
 #define RATE_PER_S  10
 #define BLINK_DELAY (1000 / 2 / RATE_PER_S)
 
+typedef uint8_t  u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+
+typedef int8_t  s8;
+typedef int16_t s16;
+typedef int32_t s32;
+typedef int64_t s64;
+
+typedef float  f32;
+typedef double f64;
+
+// typedef enum { false = 0, true = 1 } bool;
+
+typedef struct {
+    u32 rate;
+} BlinkRate_t;
+
 void task_blink(void *pvParams);
 
 #endif