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Oscar,
VB6 comes with an MSComm control that allows data collection / read / write over serial ports. You'll probably get better help on using it in the VB newsgroups. HTH, Bernie MS Excel MVP "oscar" wrote in message ... Is there any way in VBA to read or write a bit to RS232 port? Just like INP / OUT did in QBASIC. Thanks for anyone could give me a helping hand Oscar |
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