This library set the values o f sp, kp, ki and kd and can increase, decrease or change position by push-button. This is the first part of a PID controler design

Dependencies:   Debounced TextLCD mbed

Revision:
0:9aa80672eb3d
diff -r 000000000000 -r 9aa80672eb3d main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Oct 16 17:10:11 2013 +0000
@@ -0,0 +1,165 @@
+#include "mbed.h"
+#include "DebouncedIn.h"
+#include "TextLCD.h"
+
+AnalogIn Vin(PTC2);
+TextLCD lcd(PTB10, PTB11, PTE2, PTE3, PTE4, PTE5); // rs, e, d4-d7
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DebouncedIn button1(PTC12);
+DebouncedIn button2(PTC13);
+DebouncedIn button3(PTC16);
+
+int C1=0x0F;
+int sp=0,kp=0,kd=0,ki=0,p=1;
+int main()
+{
+    lcd.cls();
+    lcd.writeCommand(C1);//escribimos un comando segun el manual del modulo LCD
+    lcd.locate(8,0);
+    lcd.printf("kp=%d", kp);
+    lcd.locate(0,1);
+    lcd.printf("Ki=%d", ki);
+    lcd.locate(8,1);
+    lcd.printf("Kd=%d", kd);
+    lcd.locate(0,0);
+    lcd.printf("Sp=%d", sp);
+
+    while(1)
+    {
+        if (button1.falling())
+        {
+            led1 =!led1;
+            if (p==1)
+            {
+                ++sp;
+                lcd.locate(3,0);
+                lcd.printf("   ");
+                lcd.locate(3,0);
+                lcd.printf("%d", sp);
+            }
+            else if (p==2)
+            {
+                ++kp;
+                lcd.locate(11,0);
+                lcd.printf("   ");
+                lcd.locate(11,0);
+                lcd.printf("%d", kp);
+            }
+            else if (p==3)
+            {
+                ++ki;
+                lcd.locate(3,1);
+                lcd.printf("   ");
+                lcd.locate(3,1);
+                lcd.printf("%d", ki);
+            }
+            else if (p==4)
+            {
+                ++kd;
+                lcd.locate(11,1);
+                lcd.printf("   ");
+                lcd.locate(11,1);
+                lcd.printf("%d", kd);
+            }
+        }
+        if (button2.falling())
+        {
+            led2 =!led2;
+            if (p==1)
+            {
+                if (sp==0)  // no mostrar nada
+                {
+                }
+                else
+                {
+                    --sp;
+                    lcd.locate(3,0);
+                    lcd.printf("   ");
+                    lcd.locate(3,0);
+                    lcd.printf("%d", sp);
+                }
+            }
+            if (p==2)
+            {
+                if (kp==0)  // no mostrar nada
+                {
+                }
+                else
+                {
+                    --kp;
+                    lcd.locate(11,0);
+                    lcd.printf("   ");
+                    lcd.locate(11,0);
+                    lcd.printf("%d", kp);
+                }
+            }
+            if (p==3)
+            {
+                if (ki==0)  // no mostrar nada
+                {
+                }
+                else
+                {
+                    --ki;
+                    lcd.locate(3,1);
+                    lcd.printf("   ");
+                    lcd.locate(3,1);
+                    lcd.printf("%d", ki);
+                }
+            }
+            if (p==4)
+            {
+                if (kd==0)  // no mostrar nada
+                {
+                }
+                else
+                {
+                    --kd;
+                    lcd.locate(11,1);
+                    lcd.printf("   ");
+                    lcd.locate(11,1);
+                    lcd.printf("%d", kd);
+                }
+            }
+        }
+        if (button3.falling())
+        {
+            led3 =!led3;
+            if (p==1)
+            {
+                ++p;
+                lcd.locate(11,0);
+                lcd.printf("%d", kp);
+                
+                
+            }
+            else if (p==2)
+            {
+                ++p;
+                lcd.locate(3,1);
+                lcd.printf("%d", ki);
+                lcd.locate(3,1);
+                
+            }
+            else if (p==3)
+            {
+                ++p;
+                lcd.locate(11,1);
+                lcd.printf("%d", kd);
+                
+                
+            }
+            else if (p==4)
+            {
+                p=1;
+                lcd.locate(3,0);
+                lcd.printf("%d", sp);
+                
+                
+            }
+        }
+    }
+}