Diff: main.cpp

Revision:

3:abab0082e271

Parent:

2:5f564266c94f

Child:

4:46410fc301ea

--- a/main.cpp	Thu Jul 02 06:32:51 2015 +0000
+++ b/main.cpp	Thu Jul 02 07:34:56 2015 +0000
@@ -1,40 +1,35 @@
-/* mbed Example Program
- * Copyright (c) 2006-2014 ARM Limited
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+/* Analog Input Example Program */
  
 #include "mbed.h"
 
 // Initialize a pins to perform analog input and digital output fucntions
-AnalogIn   ain(A0);
-DigitalOut dout(LED1);
+AnalogIn   ain(A0);     
+DigitalOut myled(LED1);     // on-board LED_RED
 
 int main(void)
 {
     while (1) {
         // test the voltage on the initialized analog pin
-        //  and if greater than 0.3 * VCC set the digital pin
+        //  and if greater than 0.4 * VCC set the digital pin
         //  to a logic 1 otherwise a logic 0
-        if(ain > 0.5f) {
-            dout = 1;
+        if(ain > 0.4f) {
+            myled = 1;      // Red LED Off
         } else {
-            dout = 0;
+            myled = 0;      // Red LED On
         }
         
-        // print the percentage and 16 bit normalized values
+        // print the percentage and normalized values
         printf("percentage: %3.3f%%\r\n", ain.read()*100.0f);
         printf("analog value : %3.3f\r\n", ain.read());
         wait(1.0);
     }
 }
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