Update examples with umount

Help avoid data corruption by unmounting SD card after use

Author: DJDevon3

examples/bitmapsaver_screenshot_simpletest.py

@@ -12,13 +12,18 @@
 import storage
 from adafruit_bitmapsaver import save_pixels
 
+TAKE_SCREENSHOT = False  # Set to True to take a screenshot
 
 spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
 cs = digitalio.DigitalInOut(board.SD_CS)
 sdcard = adafruit_sdcard.SDCard(spi, cs)
 vfs = storage.VfsFat(sdcard)
 storage.mount(vfs, "/sd")
 
-print("Taking Screenshot...")
-save_pixels("/sd/screenshot.bmp")
-print("Screenshot taken")
+if TAKE_SCREENSHOT:
+    print("Taking Screenshot... ")
+    save_pixels("/sd/screenshot.bmp")
+    print("Screenshot Saved")
+    storage.umount(vfs)
+    print("SD Card Unmounted")  # Do not remove SD card until unmounted
+    

examples/bitmapsaver_screenshot_tft_featherwing.py

@@ -16,6 +16,8 @@
 DISPLAY_WIDTH = 480
 DISPLAY_HEIGHT = 320
 
+TAKE_SCREENSHOT = False  # Set to True to take a screenshot
+
 # Initialize Protocol Busses and SD Card
 spi = board.SPI()
 cs = digitalio.DigitalInOut(board.D5)
@@ -33,6 +35,10 @@
 virtual_root = "/sd"
 storage.mount(vfs, virtual_root)
 
-print("Taking Screenshot... ")
-save_pixels("/sd/screenshot.bmp", display)
-print("Screenshot taken")
+if TAKE_SCREENSHOT:
+    print("Taking Screenshot... ")
+    save_pixels("/sd/screenshot.bmp", display)
+    print("Screenshot Saved")
+    storage.umount(vfs)
+    print("SD Card Unmounted")  # Do not remove SD card until unmounted
+    

examples/bitmapsaver_simpletest.py

@@ -14,6 +14,8 @@
 
 # pylint:disable=invalid-name
 
+TAKE_SCREENSHOT = False  # Set to True to take a screenshot
+
 print("Setting up SD card")
 spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
 cs = digitalio.DigitalInOut(board.SD_CS)
@@ -50,5 +52,10 @@
         else:
             bitmap[x, y] = 0
 
-print("Saving bitmap")
-save_pixels("/sd/test.bmp", bitmap, palette)
+if TAKE_SCREENSHOT:
+    print("Taking Screenshot... ")
+    save_pixels("/sd/screenshot.bmp", bitmap, palette)
+    print("Screenshot Saved")
+    storage.umount(vfs)
+    print("SD Card Unmounted")  # Do not remove SD card until unmounted
+