fix serial

raspberry/roberto/Serial.py

@@ -10,13 +10,13 @@ class Serial(object):
         try:
             self.serialport = serial.Serial(devicename, baudrate, timeout=3.0)
             self.serialport.flushInput()
-            self.serialport.write("\n")
+            self.serialport.write(b'\n')
             self.alive = True
             print("Arduino connection established..")
         except serial.SerialException as e:
             print('could not open port {!r}: {}\n'.format(devicename, e))
-        except:
-            print("Failed to open serial device: " + self.serialport.name)
+#        except:
+#            print("Failed to open serial device: " + self.serialport.name)
 
         self.receiver_thread = threading.Thread(target=self.reader, name='rx')
         self.receiver_thread.daemon = True
@@ -34,7 +34,8 @@ class Serial(object):
             if isinstance(buf, str):
                 buf = bytes(buf, "utf8")
             self.serialport.flushInput()
-            self.serialport.write(buf+"\n")  # or "\r\n" ?
+            self.serialport.write(buf)
+            #self.serialport.write(b'\n')  # or "\r\n" ?
             print("sent " + str(buf))
         except:
             print("Error writing to: " + self.serialport.name + " Data: " + str(buf))
@@ -46,5 +47,6 @@ class Serial(object):
                 if data:
                     print(data)
         except serial.SerialException:
-            self.alive = False
-            raise
+            pass
+            #self.alive = False
+            #raise