AGC error with None values fixed

software/smartwatch.py

@@ -12,8 +12,6 @@ from matplotlib.animation import FuncAnimation
 from types import SimpleNamespace
 from enum import Enum
 
-import threading
-import random
 from threading import Thread
 
 TIME_OUT = 0.5  #Time out used for refreshing the User Interface
@@ -173,10 +171,11 @@ class Application(tk.Frame):
         maxValue = 0
         minValue = 0
         for p in copyOfChartQueue:
-            if p > maxValue:
-                maxValue = p
-            if p < minValue:
-                minValue = p
+            if(type(p) == int):
+                if p > maxValue:
+                    maxValue = p
+                if p < minValue:
+                    minValue = p
 
 
         self.ax.cla()
@@ -207,12 +206,4 @@ if __name__ == '__main__':
     t.daemon = True
     t.start()
 
-    #Test thread (DELETE)
-    def work (): 
-        threading.Timer(0.1, work).start()
-        guiRef.ppgQueue.put(random.randrange(-5,5))
-    
-
-    work()
-
     app.mainloop()