Made the evil pass_time function private.

examples/blink.py

@@ -32,12 +32,13 @@
 # The "Hello World" demo how to change a digital port synchronously.
 #
 # Warning: this is just an example of how to accesss the digital ports.
-# For precise timing please use timers and not the pass_time command
-# which locks up processing and is not precise.
+# For precise timing please use timers or callback handlers
+# and not the sleep() command which locks up processing
+# and is not precise.
 # 
 
 import pyfirmata2
-
+import time
 
 PIN = 13  # Pin 13 is used
 DELAY = 1  # 1 second delay
@@ -53,6 +54,6 @@
 # Loop for blinking the led
 while True:
     board.digital[PIN].write(1)  # Set the LED pin to 1 (HIGH)
-    board.pass_time(DELAY)
+    time.sleep(1)
     board.digital[PIN].write(0)  # Set the LED pin to 0 (LOW)
-    board.pass_time(DELAY)
+    time.sleep(1)

examples/digital-in.py

@@ -32,7 +32,7 @@
 # delay opertation.
 
 import pyfirmata2
-
+import time
 
 # Adjust that the port match your system, see samples below:
 # On Linux: /dev/tty.usbserial-A6008rIF, /dev/ttyACM0,
@@ -57,6 +57,6 @@
         print("Button not pressed")
     else:
         print("Button has never been pressed")
-    board.pass_time(0.5)
+    time.sleep(0.1)
 
 board.exit()

examples/realtime_scope.py

@@ -26,7 +26,7 @@ def __init__(self):
         # create an empty line
         self.line, = self.ax.plot(self.plotbuffer)
         # axis
-        self.ax.set_ylim(0, 1)
+        self.ax.set_ylim(0, 1.5)
         # That's our ringbuffer which accumluates the samples
         # It's emptied every time when the plot window below
         # does a repaint

pyfirmata2/pyfirmata2.py

@@ -119,7 +119,7 @@ def __init__(self, port, layout=None, baudrate=57600, name=None, timeout=None):
         # Alas, Firmata blinks its version before printing it to serial
         # For 2.3, even 5 seconds might not be enough.
         # TODO Find a more reliable way to wait until the board is ready
-        self.pass_time(BOARD_SETUP_WAIT_TIME)
+        self.__pass_time(BOARD_SETUP_WAIT_TIME)
         self.name = name
         self._layout = layout
         if not self.name:
@@ -213,7 +213,7 @@ def auto_setup(self):
         """
         self.add_cmd_handler(CAPABILITY_RESPONSE, self._handle_report_capability_response)
         self.send_sysex(CAPABILITY_QUERY, [])
-        self.pass_time(0.1)  # Serial SYNC
+        self.__pass_time(0.1)  # Serial SYNC
 
         while self.bytes_available():
             self.iterate()
@@ -282,7 +282,7 @@ def get_pin(self, pin_def):
             pin.enable_reporting()
         return pin
 
-    def pass_time(self, t):
+    def __pass_time(self, t):
         """Non-blocking time-out for ``t`` seconds."""
         cont = time.time() + t
         while time.time() < cont:

setup.py

@@ -7,7 +7,7 @@
 
 setup(
     name='pyFirmata2',
-    version='2.0.1',
+    version='2.1.0',
     description="Use your Arduino as a data acquisition card under Python",
     long_description=long_description,
     author='Bernd Porr',