Diff: main.cpp

Revision:

13:5d689f89d794

Parent:

11:cfc9b8e963db

Child:

14:db46f47b0480

--- a/main.cpp	Fri Apr 02 10:24:30 2021 +0200
+++ b/main.cpp	Tue Apr 06 12:49:57 2021 +0200
@@ -1,61 +1,69 @@
 #include "mbed.h"
 #include "platform/mbed_thread.h"
- 
+
 using namespace std::chrono;
- 
-InterruptIn    user_button(USER_BUTTON);
-DigitalOut     led(LED1);
- 
-bool           executeMainTask = false;
-Timer          user_button_timer, loop_timer;
-int            Ts_ms = 50;
- 
-void           button_fall();
-void           button_rise();
+
+InterruptIn user_button(USER_BUTTON);
+DigitalOut  led(LED1);
+
+bool  executeMainTask = false;
+Timer user_button_timer, loop_timer;
+int   Ts_ms = 50;
 
-/* input your stuff here */
+/* declaration of custom button functions */
+void button_fall();
+void button_rise();
 
- 
+/* create analog input object */
+AnalogIn analogIn(PA_0);
+float    dist = 0.0f;
+
 int main()
 {
     user_button.fall(&button_fall);
     user_button.rise(&button_rise);
     loop_timer.start();
- 
+
     while (true) {
- 
+
         loop_timer.reset();
+
+        /* ------------- start hacking ------------- -------------*/
+
+        if (executeMainTask) {
+
+            /* read analog input */
+            dist = analogIn.read()*3.3f;
  
-        /* ------------- start hacking ------------- -------------*/
- 
-        if(executeMainTask) {
-
-
+            /* do only output what's really necessary, outputting "Measured value in mV: "" within the loop is no good solution */
+            printf("Measured value in mV: %d\r\n", (static_cast<int>(dist * 1e3)));
 
             /* visual feedback that the main task is executed */
             led = !led;
- 
+
         } else {
             led = 0;
         }
- 
+
         /* ------------- stop hacking ------------- -------------*/
- 
+
         int T_loop_ms = duration_cast<milliseconds>(loop_timer.elapsed_time()).count();
         int dT_loop_ms = Ts_ms - T_loop_ms;
         thread_sleep_for(dT_loop_ms);
     }
 }
- 
+
 void button_fall()
 {
     user_button_timer.reset();
     user_button_timer.start();
 }
- 
+
 void button_rise()
 {
-    int t_button = duration_cast<milliseconds>(user_button_timer.elapsed_time()).count();
+    int t_button_ms = duration_cast<milliseconds>(user_button_timer.elapsed_time()).count();
     user_button_timer.stop();
-    if(t_button > 200) executeMainTask = !executeMainTask;
+    if (t_button_ms > 200) {
+        executeMainTask = !executeMainTask;
+    }
 }
\ No newline at end of file