Add some example scripts for pyboard (some can run on PC).

examples/ledangle.py

@@ -0,0 +1,22 @@
+def led_angle(seconds_to_run_for):
+    # make LED objects
+    l1 = pyb.Led(1)
+    l2 = pyb.Led(2)
+
+    for i in range(20 * seconds_to_run_for):
+        # get x-axis
+        accel = pyb.accel()[0]
+
+        # turn on LEDs depending on angle
+        if accel < -10:
+            l1.on()
+            l2.off()
+        elif accel > 10:
+            l1.off()
+            l2.on()
+        else:
+            l1.off()
+            l2.off()
+
+        # delay so that loop runs at at 1/50ms = 20Hz
+        pyb.delay(50)