Diff: debounce_button.cpp

Revision:

3:376ac6744373

Parent:

2:5b7d055dbc91

Child:

4:08da93eb6014

--- a/debounce_button.cpp	Tue Oct 31 09:01:56 2017 +0000
+++ b/debounce_button.cpp	Mon Oct 08 12:56:29 2018 +0000
@@ -1,5 +1,11 @@
 #include "debounce_button.h"
 
+volatile bool button1_pressed;           // Used in the main loop
+volatile bool button1_enabled;           // Used for debouncing
+volatile int multiclick_state;           // Counts how many clicks occured in the time slot, used in main loop
+volatile bool button1_busy;              // Informs the mainloop that the user is clicking the button => busy multiclick
+volatile int internal_click_count;       // Counts how many clicks occured in the time slot
+
 /**
     Some tips and tricks:
     -   To use the built-in LED:
@@ -25,8 +31,11 @@
             such that it can proceed its program.
         -   turns the built-in LED off. Therefore, the user gets informed that the program stopped counting the clicks.
 */
-void button1_multiclick_reset_cb(void) {
-    
+void button1_multiclick_reset_cb(void) 
+{
+    button1_busy = false;
+    multiclick_state = internal_click_count;
+    internal_click_count = 0;
 }
 
 /**
@@ -54,5 +63,35 @@
 */
 void button1_onpressed_cb(void)
 {
+    DigitalOut led1(LED1);
+    led1 = 1;
+    
+    if(button1_enabled)
+    {
+        button1_enabled = false;        // button is not enabled => debouncing
+        
+        Timeout debounce_time;
+        debounce_time.attach(callback(button1_enabled_cb), 0.5);
+        
+        internal_click_count++;
+        
+        if(!button1_busy)
+        {
+            button1_pressed = true;
+            button1_busy = true;
+            
+            Timeout multiclick_time;
+            multiclick_time.attach(callback(button1_multiclick_reset_cb), 1);
+        }
+    }
+}
+
+void init_debouncer()
+{
+    button1_pressed = false;
+    button1_enabled = true;
+    button1_busy = false;
+    multiclick_state = 0;
+    internal_click_count = 0;
     
 }
\ No newline at end of file