car using PID from centre line

Dependencies:   FRDM-TFC mbed CBuffer XBEE mbed_angular_speed motor2 MMA8451Q

Fork of KL25Z_Camera_Test by GDP 4

Revision:
13:4e77264f254a
Parent:
12:da96e2f87465
Child:
17:6ae90788cc2b
diff -r da96e2f87465 -r 4e77264f254a main.h
--- a/main.h	Mon Nov 21 17:19:05 2016 +0000
+++ b/main.h	Tue Nov 29 13:11:20 2016 +0000
@@ -7,7 +7,13 @@
     float p_error;
     float pid_error;
     float integral;
-    float measured_value, desired_value, derivative;
+        
+    //Measured value is a float between -1.0 and 1.0 (from left to right)
+    float measured_value;
+    
+    //Desired value is always 0.0 (as in, car is in the middle of the road)
+    float desired_value;
+    float derivative;
     float output;
 } pid_instance;