diff --git a/serial_async_test.py b/serial_async_test.py
deleted file mode 100644
index 09f858e..0000000
--- a/serial_async_test.py
+++ /dev/null
@@ -1,41 +0,0 @@
-import asyncio
-import serial_asyncio
-from rich.console import Console
-from rich import inspect
-from datetime import datetime
-
-import mtrreader
-import mtrlog
-
-class OutputProtocol(asyncio.Protocol):
-    def connection_made(self, transport):
-        self.transport = transport
-        print('port opened', transport)
-        transport.serial.rts = False  # You can manipulate Serial object via transport
-        transport.write(b'Hello, World!\n')  # Write serial data via transport
-
-    def data_received(self, data):
-        print('data received', repr(data))
-        msg = mtrreader.MtrDataMessage(data)
-        inspect(msg)
-        print(mtrlog.MtrLogFormatter.format(self, msg, datetime.now()))
-        if b'\n' in data:
-            self.transport.close()
-
-    def connection_lost(self, exc):
-        print('port closed')
-        self.transport.loop.stop()
-
-    def pause_writing(self):
-        print('pause writing')
-        print(self.transport.get_write_buffer_size())
-
-    def resume_writing(self):
-        print(self.transport.get_write_buffer_size())
-        print('resume writing')
-
-loop = asyncio.get_event_loop()
-coro = serial_asyncio.create_serial_connection(loop, OutputProtocol, '/dev/ttyUSB0', baudrate=9600)
-transport, protocol = loop.run_until_complete(coro)
-loop.run_forever()
-loop.close()
diff --git a/serial_test.py b/serial_test.py
new file mode 100644
index 0000000..449ef91
--- /dev/null
+++ b/serial_test.py
@@ -0,0 +1,19 @@
+import serial
+import mtrreader
+from rich import inspect
+import mtrlog
+from datetime import datetime
+
+mtr = serial.Serial(port='/dev/ttyUSB0', baudrate=9600, timeout=40)
+
+def main():
+    data = mtr.read_until(expected='FFFFFFFFFF', size=230)
+    print('START')
+    msg = mtrreader.MtrDataMessage(data)
+    f = mtrlog.MtrLogFormatter
+    print(f.format(f, msg, datetime.now()))
+    print('END')
+    main()
+
+if __name__ == '__main__':
+    main()