[Brewpi]

- reset between at oven state changes
- PID: Y_max is 500

git-svn-id: http://moon:8086/svn/projects/HendiControl@235 fda53097-d464-4ada-af97-ba876c37ca34

Control/brewpi/pid.py

@@ -11,7 +11,7 @@ class Pid():
 
         # Auto windup
         self.y_min = 0.0
-        self.y_max = 100.0
+        self.y_max = 500.0
         self.diff_aw = 0.0
 
         # Output
@@ -23,6 +23,10 @@ class Pid():
         p = dict(kp=kp, ki=ki, kd=kd, rho=rho)
         return p
 
+    def reset(self):
+        self.yi = 0
+        self.xd = 0
+
     def process(self, dt, params, err, derr=None):
         kp = params['kp']
         ki = params['ki']