Merge pull request #30 from Xayton/improve-buttons-example

Update buttons example: toggle LEDs when pushing buttons

Author: facchinm

examples/Modulino_Buttons/Buttons_Basic/Buttons_Basic.ino

@@ -11,9 +11,9 @@
 // Create a ModulinoButtons object
 ModulinoButtons buttons;
 
-bool button_a = false;
-bool button_b = false;
-bool button_c = false;
+bool button_a = true;
+bool button_b = true;
+bool button_c = true;
 
 void setup() {
   Serial.begin(9600);
@@ -28,12 +28,19 @@ void loop() {
   // Check for new button events, returns true when button state changes
   if (buttons.update()) {
     // Check which button was pressed (0=A, 1=B, 2=C)
+    // Also toggle the corresponding LED, for each of the three buttons
     if (buttons.isPressed(0)) {
       Serial.println("Button A pressed!");
+      button_a = !button_a;
     } else if (buttons.isPressed(1)) {
       Serial.println("Button B pressed!");
+      button_b = !button_b;
     } else if (buttons.isPressed(2)) {
       Serial.println("Button C pressed!");
+      button_c = !button_c;
     }
+    
+    // Update the LEDs above buttons, depending on the variables value
+    buttons.setLeds(button_a, button_b, button_c);
   }
 }