Gunar Kroeger / Mbed OS PID_floating_ball

Receives a measured height of a ping-pong ball from a PC, and uses it to control the PWM of a fan to keep the height as set with the keypad. Information is shown on the LCD

Dependencies:   TextLCD

Fork of mbed-os-example-mbed5-blinky by mbed-os-examples

Files at this revision

API Documentation at this revision

Revision 39:e4f5710b2f31, committed 2017-06-28

Comitter:
gunarthon
Date:
Wed Jun 28 16:36:16 2017 +0000
Parent:
38:b760c09b311c
Child:
40:19d51f6e6800
Commit message:
added serial

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/main.cpp	Thu Jun 15 23:19:38 2017 +0000
+++ b/main.cpp	Wed Jun 28 16:36:16 2017 +0000
@@ -2,6 +2,7 @@
 #include "Queue.h"
 #include "TextLCD.h"
 #include "pid.h"
+#include <Serial.h>
 
 //definitions
 typedef struct {
@@ -9,6 +10,7 @@
 } message_t;
 
 const int heightResolution = 1024;
+const int BAUDRATE = 115200;
 const double setPoint = 0.5;
 const double Kp = 1;
 const double Ki = 0.2;
@@ -34,6 +36,8 @@
 MemoryPool<message_t, 16> mpool;
 Queue<message_t,16> messageQueue;
 
+void SerialCallback(int);
+
 //=============================Thread Methodes==================================
 
 void BlueMethode(void)
@@ -79,16 +83,30 @@
 
 void CommunicationMethode(void)
 {
-    uint32_t input = 0;
+    Serial serial(USBTX, USBRX);
+    serial.baud(BAUDRATE);
+    serial.format(8, SerialBase::None, 1);
+    uint16_t input = 0;
+    
+    //event_callback_t functionpointer;
+    //functionpointer.attach(&SerialCallback);
+    
     while(true)
     {
-        input = input>=1000 ? 0 : input+1;
+        //serial.read(&input, 1, functionpointer);
+        input = serial.getc()+(serial.getc()<<8);
+        //lcd.cls();
+        //lcd.printf("%d", int(input));
         message_t *message = mpool.alloc();
         message->input = input;
         messageQueue.put(message);
-        Thread::wait(100);
     }   
 }
+/*
+void SerialCallback(int)
+{
+   //ut = 
+}*/
 
 //------------------------------------------------------------------------------
 //human-machine interface