Add demo.py

demo.py

@@ -0,0 +1,19 @@
+from datetime import datetime
+from display import DisplayBuffer, Font
+from time import sleep
+import serial, sys
+port = serial.serial_for_url("/dev/ttyUSB0", baudrate=4800)
+disp = DisplayBuffer(0x06, 128, 16)
+while True:
+#  i = datetime.strftime(datetime.now(), "             %H:%M:%S")
+#  j = datetime.strftime(datetime.now(), "  %Y-%m-%d %A")
+  i = datetime.strftime(datetime.now(), "     BSides TLL 2023")
+  j = " K-Space.ee LAN"
+  disp.put_text(i.encode("ascii"),0, 0, Font.F6)
+# Font.64 is smol fat
+# Font.F6 is light
+  disp.put_text(j.encode("ascii"),0, 15, Font.F64)
+  buf = disp.finalize_buffer()
+  port.write(buf)
+  sleep(1)
+port.close()