Added demos, renamed examples

examples/motorkit_dc_test.py

@@ -0,0 +1,43 @@
+import time
+from adafruit_motorkit import MotorKit
+
+kit = MotorKit()
+
+kit.motor1.throttle = 0
+
+while True:
+    print("Forward!")
+    kit.motor1.throttle = 0.5
+    time.sleep(1)
+
+    print("Speed up...")
+    for i in range(0, 100):
+        speed = i * 0.01
+        kit.motor1.throttle = speed
+        time.sleep(0.01)
+
+    print("Slow down...")
+    for i in reversed(range(0, 100)):
+        speed = i * 0.01
+        kit.motor1.throttle = speed
+        time.sleep(0.01)
+
+    print("Backward!")
+    kit.motor1.throttle = -0.5
+    time.sleep(1)
+
+    print("Speed up...")
+    for i in range(-100, 0):
+        speed = i * 0.01
+        kit.motor1.throttle = speed
+        time.sleep(0.01)
+
+    print("Slow down...")
+    for i in reversed(range(-100, 0)):
+        speed = i * 0.01
+        kit.motor1.throttle = speed
+        time.sleep(0.01)
+
+    print("Stop!")
+    kit.motor1.throttle = 0
+    time.sleep(1)

examples/DualStepperTest.py → examples/motorkit_dual_stepper_test.py

@@ -16,21 +16,25 @@
 st1 = threading.Thread()
 st2 = threading.Thread()
 
+
 # recommended for auto-disabling motors on shutdown!
 def turnOffMotors():
     kit.stepper1.release()
     kit.stepper2.release()
 
+
 atexit.register(turnOffMotors)
 
 stepstyles = [STEPPER.SINGLE, STEPPER.DOUBLE, STEPPER.INTERLEAVE, STEPPER.MICROSTEP]
 
+
 def stepper_worker(stepper, numsteps, direction, style):
     #print("Steppin!")
     for _ in range(numsteps):
         stepper.onestep(direction=direction, style=style)
     #print("Done")
 
+
 while True:
     if not st1.isAlive():
         randomdir = random.randint(0, 1)
@@ -41,12 +45,12 @@ def stepper_worker(stepper, numsteps, direction, style):
         else:
             move_dir = STEPPER.BACKWARD
             print("backward")
-        randomsteps = random.randint(10,50)
+        randomsteps = random.randint(10, 50)
         print("%d steps" % randomsteps)
         st1 = threading.Thread(target=stepper_worker, args=(kit.stepper1,
                                                             randomsteps,
                                                             move_dir,
-                                                            stepstyles[random.randint(0,3)],))
+                                                            stepstyles[random.randint(0, 3)],))
         st1.start()
 
     if not st2.isAlive():
@@ -58,12 +62,12 @@ def stepper_worker(stepper, numsteps, direction, style):
         else:
             move_dir = STEPPER.BACKWARD
             print("backward")
-        randomsteps = random.randint(10,50)
+        randomsteps = random.randint(10, 50)
         print("%d steps" % randomsteps)
         st2 = threading.Thread(target=stepper_worker, args=(kit.stepper2,
                                                             randomsteps,
                                                             move_dir,
-                                                            stepstyles[random.randint(0,3)],))
+                                                            stepstyles[random.randint(0, 3)],))
         st2.start()
 
     time.sleep(0.1) # Small delay to stop from constantly polling threads

examples/Robot.py → examples/motorkit_robot.py

@@ -15,7 +15,8 @@
 
 kit = MotorKit()
 
-class Robot(object):
+
+class Robot:
     def __init__(self, left_trim=0, right_trim=0, stop_at_exit=True):
         """Create an instance of the robot.  Can specify the following optional
         parameter
@@ -91,7 +92,6 @@ def backward(self, speed, seconds=None):
             time.sleep(seconds)
             self.stop()
 
-
     def right(self, speed, seconds=None):
         """Spin to the right at the specified speed.  Will start spinning and
         return unless a seconds value is specified, in which case the robot will

examples/RobotTest.py → examples/motorkit_robot_test.py

@@ -18,8 +18,8 @@
 # motor.  Likewise if it veers right then adjust the _left_ motor trim to a small
 # negative value.  Increase or decrease the trim value until the bot moves
 # straight forward/backward.
-LEFT_TRIM   = 0
-RIGHT_TRIM  = 0
+LEFT_TRIM = 0
+RIGHT_TRIM = 0
 
 
 # Create an instance of the robot with the specified trim values.
@@ -36,9 +36,9 @@
 #                     is optional and if not specified the robot will start moving
 #                     forever.
 
-robot.left(0.5,1)
-robot.right(0.5,1)
-robot.steer(0.5,0.2)
+robot.left(0.5, 1)
+robot.right(0.5, 1)
+robot.steer(0.5, 0.2)
 time.sleep(3)
 robot.stop()      # Stop the robot from moving.
 

examples/motorkit_stepper_test.py

@@ -0,0 +1,31 @@
+from adafruit_motor import stepper
+from adafruit_motorkit import MotorKit
+
+kit = MotorKit()
+
+kit.stepper1.release()
+
+while True:
+    print("Single coil steps")
+    for i in range(100):
+        kit.stepper1.onestep(direction=stepper.FORWARD, style=stepper.SINGLE)
+    for i in range(100):
+        kit.stepper1.onestep(direction=stepper.BACKWARD, style=stepper.SINGLE)
+
+    print("Double coil steps")
+    for i in range(100):
+        kit.stepper1.onestep(direction=stepper.FORWARD, style=stepper.DOUBLE)
+    for i in range(100):
+        kit.stepper1.onestep(direction=stepper.BACKWARD, style=stepper.DOUBLE)
+
+    print("Interleaved coil steps")
+    for i in range(100):
+        kit.stepper1.onestep(direction=stepper.FORWARD, style=stepper.INTERLEAVE)
+    for i in range(100):
+        kit.stepper1.onestep(direction=stepper.BACKWARD, style=stepper.INTERLEAVE)
+
+    print("Microsteps")
+    for i in range(100):
+        kit.stepper1.onestep(direction=stepper.FORWARD, style=stepper.MICROSTEP)
+    for i in range(100):
+        kit.stepper1.onestep(direction=stepper.BACKWARD, style=stepper.MICROSTEP)