Merge pull request #31 from kattni/i2c-update

Updating I2C instantiation to be more obvious.

Author: ladyada

adafruit_motorkit.py

@@ -62,7 +62,10 @@
 class MotorKit:
     """Class representing an Adafruit DC & Stepper Motor FeatherWing, Shield or Pi Hat kit.
 
-       Automatically uses the I2C bus on a Feather, Metro or Raspberry Pi."""
+       Automatically uses the I2C bus on a Feather, Metro or Raspberry Pi if no I2C bus
+       is supplied.
+
+       Alternately, if using with multiple I2C devices, you can specify the I2C bus."""
 
     def __init__(self, address=0x60, i2c=None, steppers_microsteps=16):
         self._motor1 = None

examples/motorkit_dc_motor_simpletest.py

@@ -1,8 +1,9 @@
 """Simple test for using adafruit_motorkit with a DC motor"""
 import time
+import board
 from adafruit_motorkit import MotorKit
 
-kit = MotorKit()
+kit = MotorKit(i2c=board.I2C())
 
 kit.motor1.throttle = 1.0
 time.sleep(0.5)

examples/motorkit_dc_test.py

@@ -1,7 +1,8 @@
 import time
+import board
 from adafruit_motorkit import MotorKit
 
-kit = MotorKit()
+kit = MotorKit(i2c=board.I2C())
 
 kit.motor1.throttle = 0
 

examples/motorkit_dual_stepper_test.py

@@ -6,11 +6,12 @@
 import atexit
 import threading
 import random
+import board
 from adafruit_motor import stepper as STEPPER
 from adafruit_motorkit import MotorKit
 
 # create a default object, no changes to I2C address or frequency
-kit = MotorKit()
+kit = MotorKit(i2c=board.I2C())
 
 # create empty threads (these will hold the stepper 1 and 2 threads)
 st1 = threading.Thread()  # pylint: disable=bad-thread-instantiation

examples/motorkit_robot.py

@@ -14,9 +14,10 @@
 
 import time
 import atexit
+import board
 from adafruit_motorkit import MotorKit
 
-kit = MotorKit()
+kit = MotorKit(i2c=board.I2C())
 
 
 class Robot:

examples/motorkit_stepper_simpletest.py

@@ -1,8 +1,9 @@
 """Simple test for using adafruit_motorkit with a stepper motor"""
 import time
+import board
 from adafruit_motorkit import MotorKit
 
-kit = MotorKit()
+kit = MotorKit(i2c=board.I2C())
 
 for i in range(100):
     kit.stepper1.onestep()

examples/motorkit_stepper_test.py

@@ -1,7 +1,8 @@
+import board
 from adafruit_motor import stepper
 from adafruit_motorkit import MotorKit
 
-kit = MotorKit()
+kit = MotorKit(i2c=board.I2C())
 
 kit.stepper1.release()