Try to fix issue #1

Author: hubmartin

client/waveshare_epd/epd7in5_V2.py

@@ -128,14 +128,22 @@ def send_data2(self, data):
         epdconfig.digital_write(self.cs_pin, 1)
 
     def ReadBusy(self):
-        logger.debug("e-Paper busy")
+        logging.debug("e-Paper busy")
         self.send_command(0x71)
-        busy = epdconfig.digital_read(self.busy_pin)
-        while(busy == 0):
+        iter = 0
+        while epdconfig.digital_read(self.busy_pin) == 0:
             self.send_command(0x71)
-            busy = epdconfig.digital_read(self.busy_pin)
-        epdconfig.delay_ms(20)
-        logger.debug("e-Paper busy release")
+            epdconfig.delay_ms(100)
+            iter += 1
+            if iter > 150:
+                logging.debug("Forced e-paper busy release")
+                break
+        logging.debug("e-Paper busy release")
+        #busy = epdconfig.digital_read(self.busy_pin)
+        #while(busy == 0):
+        #    self.send_command(0x71)
+        #    busy = epdconfig.digital_read(self.busy_pin)
+        #epdconfig.delay_ms(200)
 
     def SetLut(self, lut_vcom, lut_ww, lut_bw, lut_wb, lut_bb):
         self.send_command(0x20)