Diff: main.cpp

Revision:

0:800b74bff4d2

Child:

1:d725cda6f61b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Apr 03 05:48:04 2017 +0000
@@ -0,0 +1,42 @@
+/* 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.
+ */
+ 
+#include "mbed.h"
+
+// Initialize a pins to perform analog input and digital output fucntions
+AnalogIn   ain(P30);
+DigitalOut dout(LED1);
+
+int main(void)
+{
+    Serial pc(USBTX,USBRX);
+    pc.baud(115200);
+    while (1) {
+        // test the voltage on the initialized analog pin
+        //  and if greater than 0.3 * VCC set the digital pin
+        //  to a logic 1 otherwise a logic 0
+        if(ain > 0.3f) {
+            dout = 1;
+        } else {
+            dout = 0;
+        }
+        
+        // print the percentage and 16 bit normalized values
+        printf("percentage: %3.3f%%\n", ain.read()*100.0f);
+        printf("normalized: 0x%04X \n", ain.read_u16());
+        wait(0.2f);
+    }
+}