Differences

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--- ezeio2:scriptref:pid_new [2022-03-30 23:25] – andreh
+++ ezeio2:scriptref:pid_new [2022-03-30 23:44] (current) – andreh
@@ Line 5: / Line 5: @@
 === Description ===
-<code>PID_new( pid[], Float:in, Float:out )</code>
+<code>PID_new( pid[], Float:set, Float:out ) // set up new PID</code>
-<code>PID_dir( pid[], direction )</code>
+<code>PID_dir( pid[], direction ) // set direction of control</code>
-<code>PID_set( pid[], Float:set )</code>
+<code>PID_set( pid[], Float:set ) // adjust the target value</code>
-<code>PID_tune( pid[], Float:Kp, Float:Ki, Float:Kd )</code>
+<code>PID_tune( pid[], Float:Kp, Float:Ki, Float:Kd ) // set the P, I, D parameters</code>
-<code>PID_limits( pid[], Float:min, Float:max )</code>
+<code>PID_limits( pid[], Float:min, Float:max ) // set the control range</code>
-<code>PID_update( pid[], Float:in )</code>
+<code>PID_update( pid[], Float:in ) // update PID with feedback, and return new control value</code>
 === Parameters ===
-| ''in'' | Feedback value |
+| ''set'' | setpoint / target |
 | ''out'' | Initial output value |
 | ''direction'' | 1 (normal) or -1 (reverse) |
-| ''set'' | setpoint / target |
 | ''Kp'' | Proportional component |
 | ''Ki'' | Integral response component |
@@ Line 36: / Line 35: @@
    main()
    {
-      // Initialize the PID with mid range input and no output
+      // Initialize the PID with target and no output
       PID_new(p, 50.0, 0.0);
@@ Line 44: / Line 43: @@
       // Set the tuning parameters
       PID_tune(p, 0.2, 0.04, 0.01);
-      // Set setpoint (target pressure)
-      PID_set(p, 40.0);
       // Set update speed to 100ms