Update ports.py

ports.py

-
-import subprocess
-import sys
-
-
-try:
-    import serial
-    import serial.tools
-except ImportError:
-    subprocess.check_call([sys.executable, "-m", "pip", "install", 'pyserial'])
-finally:
-    import serial
-    import serial.tools
-
-
+import serial
+import serial.tools
 import sys
 import time
 
@@ -41,7 +28,7 @@ def connect_to_serial(s):
 
     serial.tools.miniterm.TRANSFORMATIONS['ctrlc'] = NoCTRLC
     miniterm = serial.tools.miniterm.Miniterm(
-        s, echo=True, filters=('ctrlc',))
+        s, echo=False, filters=('ctrlc',))
     miniterm.exit_character = chr(0x03)
     miniterm.menu_character = chr(0x0D)
     miniterm.raw = True