Bryce Williams / Mbed 2 deprecated ESP8266_pid_mtrSpeed_Webserver_SDcard

Wifi Webserver to control the Speed of a motor using PID

Dependencies:   4DGL-uLCD-SE PID QEI SDFileSystem mbed

Diff: main.cpp

Revision:
1:1490beafb4f7
Parent:
0:7478eabf00eb
Child:
2:f579e98b82de
--- a/main.cpp	Wed Nov 25 02:11:34 2015 +0000
+++ b/main.cpp	Wed Nov 25 02:49:45 2015 +0000
@@ -33,6 +33,8 @@
     TODO: Move debugging printf statements inside of #ifdef DEBUG
     statements, so that serial terminal print statements can be 
     turned on and off easily for debugging.
+    
+    TODO: Implement stop button in webpage
 */
 
 
@@ -71,10 +73,11 @@
 const float output_upper_limit = 1.0;
 const float FEEDBACK_SCALE = 1.0/3000.0;        // Scale feedback to 1rev/3000cnts
                                                 // this is encoder specific.
+// Init Webpage to these values                                                
 const float setpoint_init = 0.0;
 const float kp_init = 0.01;
-const float ki_init = 0.01;
-const float kd_init = 0.0;
+const float ki_init = 0.015;
+const float kd_init = 0.0001;
 const float Ts_init = 0.04;                   // 25Hz Sample Freq (40ms Sample Time)
 
 PID pid(&setpoint, &feedback, &output, output_lower_limit, output_upper_limit,
@@ -97,7 +100,7 @@
     
     /****************** Load Webpage from SD Card***************************************/
     /***********************************************************************************/
-    char file[] = "/sd/pid_pos.html";
+    char file[] = "/sd/pid_spd.html";
     
     // Get file size so we can dynamically allocate buffer size 
     int num_chars = 0;
@@ -506,7 +509,7 @@
             else mtr_pwm = 0.0;
         }                          
     } 
-    float k = Ts/2.0;                        // Discrete time, (Ts/2 because this callback is called
+    float k = Ts_init/2.0;                        // Discrete time, (Ts/2 because this callback is called
                                              // at interval of Ts/2... or twice as fast as pid controller)
     
     /* TODO: Implement a "rolling"/"moving" average */
@@ -535,10 +538,46 @@
 Copy and past text below into a html file and save as the given file name to 
 your SD card.
 
-file name: pid_pos.html
+file name: pid_spd.html
 
 html text:
 
+<!DOCTYPE html>
+<html>
+<head>
+<title>PID Motor Speed Control</title>
+</head>
+<body>
+<h1>PID Motor Speed Control</h1>
+<h2>Motor Status</h2>
+<p>
+<form title="Motor Status">
+<input type="text" value="Some user information" size="25" readonly /><br>
+Current Setpoint:
+<input type="number" name="current_setpoint" value="0000.00" readonly /><br>
+Current Position:
+<input type="number" name="current_position" value="0000.00" readonly /><br>
+</form>
+</p>
+<h2>PID Status</h2>
+<form title="User Input" method="post">
+PID Controls: <br>
+Setpoint (RPM): 
+<input type="number" name="setpoint_input" value="0000.00" step="0.01" size="6"  /><br>
+Proportional Gain:
+<input type="number" name="kp_input" value="000.01" step="0.0001" size="6"  /><br>
+Integral Gain:
+<input type="number" name="ki_input" value="000.01" step="0.0001" size="6"  /><br>
+Derivative Gain:
+<input type="number" name="kd_input" value="000.00" step="0.0001" size="6"  /><br>
+<br>
+<input type="submit" value="Submit" />
+<input type="submit" name="update" value="Update">
+<input type="submit" name="estop" value="STOP">
+</form>
+</body>
+</html>
+
 
 *****************************************************************************/
 /*****************************************************************************/
\ No newline at end of file