diff --git a/100x100.bmp b/100x100.bmp
deleted file mode 100644
index 8d0d675..0000000
Binary files a/100x100.bmp and /dev/null differ
diff --git a/2in13.bmp b/2in13.bmp
deleted file mode 100644
index 5156852..0000000
Binary files a/2in13.bmp and /dev/null differ
diff --git a/main.py b/main.py
index 2d274d7..817a619 100644
--- a/main.py
+++ b/main.py
@@ -6,66 +6,20 @@ import time
 from PIL import Image,ImageDraw,ImageFont
 import traceback
 
-try:
-    epd = epd2in13.EPD()
-    epd.init(epd.FULL_UPDATE)
-    epd.Clear(0xFF)
-    
-    # Drawing on the image
-    image = Image.new('1', (epd2in13.EPD_HEIGHT, epd2in13.EPD_WIDTH), 255)  # 255: clear the frame
-    
-    print("Drawing")    
-    draw = ImageDraw.Draw(image)    
-    # draw.rectangle([(0,0),(50,50)],outline = 0)
-    # draw.rectangle([(55,0),(100,50)],fill = 0)
-    # draw.line([(0,0),(50,50)], fill = 0,width = 1)
-    # draw.line([(0,50),(50,0)], fill = 0,width = 1)
-    # draw.chord((10, 60, 50, 100), 0, 360, fill = 0)
-    # draw.ellipse((55, 60, 95, 100), outline = 0)
-    # draw.pieslice((55, 60, 95, 100), 90, 180, outline = 0)
-    # draw.pieslice((55, 60, 95, 100), 270, 360, fill = 0)
-    # draw.polygon([(110,0),(110,50),(150,25)],outline = 0)
-    # draw.polygon([(190,0),(190,50),(150,25)],fill = 0)
-    message = "testing 123 what is going on\n ahbfuasdfhkgasyudgfuasykgdf"
-    while True:
-        font15 = ImageFont.truetype('wqy-microhei.ttc', 20)
-        draw.text((3, 3), '{}'.format(message), font = font15, fill = 0)
-        epd.display(epd.getbuffer(image))
-        time.sleep(20)
-    
-    # # read bmp file 
-    # print("read bmp file")
-    # epd.Clear(0xFF)
-    # image = Image.open('2in13.bmp')
-    # epd.display(epd.getbuffer(image))
-    # time.sleep(2)
-    
-    # # read bmp file on window
-    # print("read bmp file on window")
-    # epd.Clear(0xFF)
-    # image1 = Image.new('1', (epd2in13.EPD_WIDTH, epd2in13.EPD_HEIGHT), 255)  # 255: clear the frame
-    # bmp = Image.open('100x100.bmp')
-    # image1.paste(bmp, (10,10))    
-    # epd.display(epd.getbuffer(image1))
-    # time.sleep(2)
-    
-    # # # partial update
-    # print("Show time")
-    # epd.init(epd.PART_UPDATE)    
-    # epd.Clear(0xFF)
-    # font24 = ImageFont.truetype('wqy-microhei.ttc', 24)
-    # time_image = Image.new('1', (epd2in13.EPD_HEIGHT, epd2in13.EPD_WIDTH), 255)
-    # time_draw = ImageDraw.Draw(time_image)
-    # while (True):
-    #     time_draw.rectangle((10, 10, 120, 50), fill = 255)
-    #     time_draw.text((10, 10), time.strftime('%H:%M:%S'), font = font24, fill = 0)
-    #     newimage = time_image.crop([10, 10, 120, 50])
-    #     time_image.paste(newimage, (10,10))  
-    #     epd.displayPartial(epd.getbuffer(time_image))
-        
-    # epd.sleep()
-        
-except:
-    print('traceback.format_exc():\n%s',traceback.format_exc())
-    exit()
+
+def sendUpdate():
+        epd = epd2in13.EPD()
+        epd.init(epd.FULL_UPDATE)
+        epd.Clear(0xFF)
+        
+        # Drawing on the image
+        image = Image.new('1', (epd2in13.EPD_HEIGHT, epd2in13.EPD_WIDTH), 255)  # 255: clear the frame
+
+        message = "testing 123 what is going\n on ahbfuasdfhkgasyudgfuasykgdf"
+
+        while True:
+            font15 = ImageFont.truetype('wqy-microhei.ttc', 20)
+            draw.text((3, 3), '{}'.format(message), font = font15, fill = 0)
+            epd.display(epd.getbuffer(image))
+            time.sleep(20)