Diff: main.cpp

Revision:

0:df98cf0f64e4

Child:

5:a32148e02ecf

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Jan 20 23:09:57 2015 +0000
@@ -0,0 +1,36 @@
+/* mbed Example Program
+ * Copyright (c) 2006-2015 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.
+ */
+
+#include "mbed.h"
+
+// Initialize a pins to perform analog and digital output fucntions
+AnalogOut  aout(p18);
+DigitalOut dout(LED1);
+
+int main(void)
+{
+    while (1) {
+        // change the voltage on the digital output pin by 0.1 * VCC
+        //  and print what the measured voltage should be (assuming VCC = 3.3v)
+        for (float i = 0.0f; i < 1.0f; i += 0.1f) {
+            aout = i;
+            printf("aout = %1.2f volts\n", aout.read() * 3.3f);
+            // turn on the led if the voltage is greater than 0.5f * VCC
+            dout = (aout > 0.5f) ? 1 : 0;
+            wait(1.0f);
+        }
+    }
+}