Implemented duration warning

Author: Ivan

.vscode/settings.json

@@ -8,6 +8,7 @@
         "*.tcc": "c",
         "cmath": "c",
         "complex": "c",
-        "random": "c"
+        "random": "c",
+        "stdio.h": "c"
     }
 }

main/lcd.c

@@ -99,3 +99,18 @@ static void i2c_master_init(void)
                        I2C_MASTER_TX_BUF_LEN, 0);
 }
 
+void lcd_set_warning(uint8_t lvl)
+{
+    printf("Warning: %d\n", lvl);
+    if (lvl >= 3) lvl = 3;
+
+    i2c_lcd1602_move_cursor(p_lcd_info, 13, 0);
+    i2c_lcd1602_write_string(p_lcd_info, "   ");
+
+    i2c_lcd1602_move_cursor(p_lcd_info, 13, 0);
+    
+    for (uint8_t cnt = 0; cnt < lvl; cnt++)
+    {
+        i2c_lcd1602_write_char(p_lcd_info, '!');
+    }
+}

main/lcd.h

@@ -21,12 +21,20 @@ uint8_t lcd_init(void);
 uint8_t lcd_set_dur(uint16_t dur_val);
 
 /**
- * @brief  Place curcor to user defined position.
+ * @brief  Place cursor to user defined position.
  * @note   None.
  * @param  *p_pos: Position where we want to put the cursor to. 
  * @retval 0 -> ok
  *         1 -> not ok 
  */
 uint8_t lcd_user_pointer(uint8_t *p_pos);
 
+/**
+ * @brief  Prints ! in top right corner.
+ * @note   
+ * @param  lvl: Level of warning.
+ * @retval None
+ */
+void lcd_set_warning(uint8_t lvl);
+
 #endif

main/rotary_encoder.c

@@ -14,6 +14,10 @@
 static QueueHandle_t p_encoder_queue = NULL;
 static int16_t duration = 100;
 
+static uint8_t warning1 = 150;
+static uint8_t warning2 = 500;
+static uint8_t warning3 = 1000;
+
 /**
  * @brief  Rotary encoder interrupt service routine. 
  * @note   Debounce protocol should be done here.
@@ -131,10 +135,28 @@ static void rotary_encoder_task(void *arg)
                 duration = 5000;
             }
 
+            // Signal the user if the duration is to long.
+            if (0 <= duration && warning1 > duration){
+                lcd_set_warning(0);
+            }
+            else if (warning1 < duration && warning2 > duration)
+            {
+                lcd_set_warning(1);
+            }
+            else if ((warning2 < duration && 1000 > duration))
+            {
+                lcd_set_warning(2);
+            }
+            else
+            {
+                lcd_set_warning(3);
+            }
+
             lcd_set_dur(duration);
-            vTaskDelay(60/portTICK_PERIOD_MS);
+            vTaskDelay(50/portTICK_PERIOD_MS);
             gpio_intr_enable(ENC_DT);
             gpio_intr_enable(ENC_SW);
+            gpio_intr_enable(ENC_CLK);
         }
     }
 }
@@ -153,6 +175,7 @@ static void IRAM_ATTR encoder_isr_handler(void *arg)
     // Disable interrupts until the handling is done.
     gpio_intr_disable(ENC_DT);
     gpio_intr_disable(ENC_SW);
+    gpio_intr_disable(ENC_CLK);
 
     uint8_t a = gpio_get_level(ENC_CLK);
     uint8_t b = gpio_get_level(ENC_DT);