add more status reporting over UART

esp32/main.py

@@ -36,16 +36,19 @@ while rf is not None:
             if c == 4:
                 break
         hash=hashlib.sha256(str("{0:#0{1}x}".format(int(buf),10)+":"+card[6:8]+card[4:6]+card[2:4]+card[0:2])[2:].encode()).digest().hex()
+        print('Card hash: {0}'.format(hash))
         f = open("hashes")
         for user in f:
             if(user.strip() == hash):
                 success = True            
         if(success):
+            print('Known hash, opening door')
             uart.write("FH")
             door.value(1)
             utime.sleep(2)
             door.value(0)
         else:
+            print('Unknown hash, ignoring')
             uart.write("FS")
         utime.sleep(2)
         buf=''