Diff: main.cpp

Revision:

0:9475544275a6

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+++ b/main.cpp	Thu Sep 21 20:11:08 2017 +0000
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+/*
+  Project: ForLoopIteration
+  File: main.cpp
+ 
+ Demonstrates the use of a for() loop. Lights multiple LEDs in sequence, then
+ in reverse.
+ 
+ The circuit:
+ 
+    Bargraph LEDs from pins 2 through 11 to ground via 330 Ohm resistors.
+ 
+ Created 2006
+ by David A. Mellis
+ Modified 30 Aug 2011
+ by Tom Igoe
+ Modified for Nucleo / mbed 12 Aug 2017
+ by Sheila Ross
+ Modified by C. S. Tritt 9/21/17 (v. 1.0)
+ 
+This example code is in the public domain.
+*/
+ 
+#include "mbed.h"
+ 
+float delay = 0.1; // Seconds, the higher the number, the slower the rate.
+ 
+BusOut bar_graph(D2,D3,D4,D5,D6,D7,D8,D9,D10,D11);
+ 
+int main() {
+  
+    while(true) { // Keep the lights going back and forth forever.
+ 
+        // Lighted bar will shift from 0 to 9 places.
+        for(int shift = 0; shift < 10; shift++) {
+            bar_graph = (1<<shift); // A 1 shifted over "shift" places.
+            wait(delay); // Pause
+        }
+
+        // Now shift down from 9 to 0 places.
+        for(int shift = 9; shift >= 0; shift--) {
+            bar_graph = (1 << shift); // A 1 shifted over "shift" places.
+            wait(delay); // Pause
+        }
+    }
+}
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