Diff: main.cpp

Revision:

2:8211254a87fd

Parent:

1:f650db6c33e4

Child:

3:cb287ef68787

--- a/main.cpp	Wed Feb 22 14:06:34 2017 +0000
+++ b/main.cpp	Wed Jan 10 14:22:54 2018 +0000
@@ -5,6 +5,10 @@
 DigitalIn button_C(p27);
 DigitalIn button_D(p26);
 
+DigitalOut red_led(p24);
+DigitalOut green_led(p23);
+DigitalOut blue_led(p22);
+
 void init_buttons();
 
 int main()
@@ -13,20 +17,34 @@
 
     while(1) {
 
-        // check each button in turn and print message
+        // check if button A pressed
         if ( button_A.read() == 1) {
-            printf("Button A pressed\n");
-        }
-        if ( button_B.read() == 1) {
-            printf("Button B pressed\n");
+
+            // writing a 1 turns the LED off, 0 makes it turn on (active-low)
+            red_led.write(0);  // if it is, turn the red LED on
+        } else {
+            red_led.write(1);  // if it isn't, turn the red LED on
         }
-        if ( button_C.read() == 1) {
-            printf("Button C pressed\n");
+
+        // check if button B pressed
+        if ( button_B.read() == 1) {
+
+            // writing a 1 turns the LED off, 0 makes it turn on (active-low)
+            green_led.write(0);  // if it is, turn the red LED on
+        } else {
+            green_led.write(1);  // if it isn't, turn the red LED on
         }
-        if ( button_D.read() == 1) {
-            printf("Button D pressed\n");
+
+        // check if button C pressed
+        if ( button_C.read() == 1) {
+
+            // writing a 1 turns the LED off, 0 makes it turn on (active-low)
+            blue_led.write(0);  // if it is, turn the red LED on
+        } else {
+            blue_led.write(1);  // if it isn't, turn the red LED on
         }
 
+
         wait(0.1);  // small delay
 
     }