Merge pull request adafruit#1257 from adafruit/pb-moon-clock

Minor Moon Clock changes and bug fixlets

Author: PaintYourDragon

Matrix_Portal_Moon_Clock/code.py

@@ -175,6 +175,8 @@ def __init__(self, datetime, hours_ahead, utc_offset):
 DISPLAY = MATRIX.display
 ACCEL = adafruit_lis3dh.LIS3DH_I2C(busio.I2C(board.SCL, board.SDA),
                                    address=0x19)
+_ = ACCEL.acceleration # Dummy reading to blow out any startup residue
+time.sleep(0.1)
 DISPLAY.rotation = (int(((math.atan2(-ACCEL.acceleration.y,
                                      -ACCEL.acceleration.x) + math.pi) /
                          (math.pi * 2) + 0.875) * 4) % 4) * 90
@@ -368,7 +370,7 @@ def __init__(self, datetime, hours_ahead, utc_offset):
     GROUP[0] = TILE_GRID
 
     # Update percent value (5 labels: GROUP[1-4] for outline, [5] for text)
-    if PERCENT >= 100:
+    if PERCENT >= 99.95:
         STRING = '100%'
     else:
         STRING = '{:.1f}'.format(PERCENT + 0.05) + '%'
@@ -421,4 +423,5 @@ def __init__(self, datetime, hours_ahead, utc_offset):
     GROUP[7].x = CENTER_X - GROUP[7].bounding_box[2] // 2
     GROUP[7].y = TIME_Y + 10
 
+    DISPLAY.refresh() # Force full repaint (splash screen sometimes sticks)
     time.sleep(5)