Diff: Serial.cpp

Revision:

0:2f8376278c8a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Serial.cpp	Sat Aug 01 15:37:18 2020 +0000
@@ -0,0 +1,27 @@
+#include "mbed.h"
+
+Serial pc(USBTX,USBRX);   //defines an object called pc of serial class, and points it at the usb port
+PwmOut led(LED1);        //pulse width modulation
+float brightness = 0.0; //brightness ia a variable of type float
+
+
+int main()
+{
+    pc.printf ("Press 'u' = brighter, 'd' = dimmer\n\r"); //outputs a message at the start
+
+    while(1) {
+
+        char c = pc.getc ();
+        if (( c =='u') && (brightness < 0.5)) {
+            brightness += 0.01;
+            pc.putc('^');   // when U is pressed ^ is printed to the screen
+            led = brightness;
+        }
+        if (( c =='d') && (brightness > 0.0)) {
+            brightness -= 0.01;
+            pc.putc('V');   // when d is pressed V is printed to the screen
+            led = brightness;
+        }
+
+    }
+}