forked from fmueller/esp8266-led-marquee-sign-controller
43 lines
1.0 KiB
Python
43 lines
1.0 KiB
Python
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"""
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Simple socket server used to reverse engineer the messaging protocol the bundled software uses to send data to the
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LED sign.
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The server just dumps incoming messages in a hexdump-like format as well as an easy to read Python bytestring.
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"""
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import asyncio
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import string
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async def handle_client(reader, writer):
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message = await reader.read(255)
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hex_chars = [hex(j)[2:].zfill(2) for j in message]
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ascii_chars = []
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for j in message:
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char = chr(j)
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if char in (string.ascii_letters + string.digits + string.punctuation):
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ascii_chars.append(char)
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else:
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ascii_chars.append(".")
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print("Message received: ", end="")
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print(" ".join(hex_chars), end=" | ")
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print("".join(ascii_chars), end=" | ")
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print("".join(repr(message)))
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writer.close()
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async def run_server():
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server = await asyncio.start_server(handle_client, '', 3000)
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async with server:
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await server.serve_forever()
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if __name__ == "__main__":
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asyncio.run(run_server())
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