Reply To: "Simon Redwood" X-Mailer: ELM [version 2.4ME+ PL37 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 665 What are you writing in ? in C something like this would quite happily write the data in any form. unsigned char data[] = { 0xFF, 0x8E, 0x01, 0xFF, 0xCE, 0x10, 0x00, 0x6F, 0x35, 0x18, 0xCE, 0x10, 0x3F, 0x86, 0x07, 0x8D, 0x40, 0x18, 0xCE, 0xB6, 0x00, 0x86, 0x19, 0x8D }; ... open(com1, O_BINARY|O_RDWR,S_IWUSR); ... write(com1, &data, sizeof(&data)); ... > > Next question: How can I send data as numbers and not ASCII? > > Hmm, guess I beter dust of my Qbasic and write something. > > Thanks > Quentin > -- Regards, Simon { ICQ#: 12229096 } { Email: spredwood@sri-net.demon.co.uk } { Internet: www.sri-net.demon.co.uk }