wip:

.gitignore

@@ -1,2 +1,3 @@
 .pio
 .vscode
+.DS_Store

src/main.c

@@ -3,7 +3,7 @@
 #include "avr/io.h"
 #include "zh_avr_160x_i2c.h"
 
-// #define DEBUG
+#define DEBUG
 
 #define BUTTON_I2C_ADDRESS 0x00
 #define LED1_I2C_ADDRESS 0x00
@@ -26,6 +26,10 @@ int usart(char byte, FILE *stream)
 FILE uart = FDEV_SETUP_STREAM(usart, NULL, _FDEV_SETUP_WRITE);
 #endif
 
+void system_setup_task(void *pvParameters);
+
+TaskHandle_t system_setup_task_handle = {0};
+
 zh_avr_pcf8574_handle_t button_handle = {0};
 zh_avr_pcf8574_handle_t led1_handle = {0};
 zh_avr_pcf8574_handle_t led2_handle = {0};
@@ -52,6 +56,13 @@ int main(void)
     UCSR0C = (1 << UCSZ01) | (1 << UCSZ00);
     stdout = &uart;
 #endif
+    xTaskCreate(system_setup_task, "system_setup_task", 107, NULL, tskIDLE_PRIORITY, &system_setup_task_handle);
+    vTaskStartScheduler();
+    return 0;
+}
+
+void system_setup_task(void *pvParameters)
+{
     zh_avr_i2c_master_init(false);
     zh_avr_pcf8574_init_config_t pcf8574_init_config = ZH_AVR_PCF8574_INIT_CONFIG_DEFAULT();
     pcf8574_init_config.i2c_address = LED1_I2C_ADDRESS;
@@ -85,14 +96,18 @@ int main(void)
     zh_avr_160x_print_char(&lcd_handle, "Loading: ");
     for (uint8_t i = 0; i <= 100; ++i)
     {
-        zh_avr_160x_set_cursor(&lcd_handle, 3, 10); // For LCD 16X4.
+        zh_avr_160x_set_cursor(&lcd_handle, 3, 10);
         zh_avr_160x_print_int(&lcd_handle, i);
         zh_avr_160x_print_char(&lcd_handle, "%");
-        _delay_ms(50);
+        vTaskDelay(50 / portTICK_PERIOD_MS);
     }
-    // xTaskCreate(led_flash_task, "led flash task", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL);
-    vTaskStartScheduler();
-    return 0;
+    printf("Ok\n");
+    vTaskDelete(NULL);
+}
+
+void vApplicationStackOverflowHook(TaskHandle_t xTask, char *pcTaskName)
+{
+    printf("Task %s Remaining Stack Size %d.\n", pcTaskName, uxTaskGetStackHighWaterMark(xTask));
 }
 
 void zh_avr_pcf8574_event_handler(zh_avr_pcf8574_event_on_isr_t *event)