Added robot_util.py

robot_util.py

@@ -0,0 +1,53 @@
+import os
+import time
+import traceback
+import ssl
+import urllib2
+import getpass
+import json
+
+
+
+ConfigFilename = "/home/pi/config_" + getpass.getuser() + ".json"
+
+
+def getWithRetry(url, secure=True):
+
+    for retryNumber in range(2000):
+        try:
+            print "GET", url
+            if secure:
+                response = urllib2.urlopen(url).read()
+            else:
+                ctx = ssl.create_default_context()
+                ctx.check_hostname = False
+                ctx.verify_mode = ssl.CERT_NONE
+                response = urllib2.urlopen(url, context=ctx).read()
+            break
+        except:
+            print "could not open url", url
+            traceback.print_exc()
+            time.sleep(2)
+
+    return response
+
+
+
+def sendSerialCommand(ser, command):
+
+
+    print(ser.name)         # check which port was really used
+    ser.nonblocking()
+
+    # loop to collect input
+    #s = "f"
+    #print "string:", s
+    print str(command.lower())
+    ser.write(command.lower().encode("utf8") + "\r\n") # write a string
+    #ser.write(s)
+    ser.flush()
+
+    #while ser.in_waiting > 0:
+    #    print "read:", ser.read()
+
+    #ser.close()