Diff: main.cpp

Revision:

2:f63cdb6f8a44

Parent:

1:ee571cefc13b

Child:

3:35d45c4dd5d2

--- a/main.cpp	Thu Aug 27 10:14:27 2020 +0000
+++ b/main.cpp	Tue Sep 29 09:55:47 2020 +0000
@@ -1,23 +1,28 @@
-
 #include "mbed.h"
 
 int main()
 {
-    // Initialise the digital pin USER_BUTTON (the blue button) as an input
-    DigitalIn button(USER_BUTTON);
+    // Initialise the digital pins D2 and D3 as outputs
+    DigitalOut green(D2);
+    DigitalOut red(D3);
+
+    // Initialise the digital pins D4 and D5 as inputs with pullup resistors
+    DigitalIn PB1(D4, PullUp);
+    DigitalIn PB2(D5, PullUp);
     
-    // Initialise the serial connection with the PC
-    Serial pc(USBTX, USBRX);
-
     // Loop forever...
     while (true) {
-        // Is the button being pressed?
-        if (button) {
-            pc.printf("Button is up\n");
-        } else {
-            pc.printf("Button is down\n");
-        }    
-        // Wait for 500ms
-        thread_sleep_for(500);
+        // Is PB1 being pressed?
+        if (PB1 == false) {
+            // Light the red LED, extinguish the green
+            red = true;
+            green = false;
+        }
+        // Is PB2 being pressed?
+        if (PB2 == false) {
+            // Extinguish the red LED, light the green
+            red = false;
+            green = true;
+        }
     }
 }