Yes, the previous post was my struggle to start. Now i am on my next stage. I am using Strawberry 32 bit on a 64 bit windows 7. The usb to serial converted is connected to PC , then connect the device which talks on serial. Only tx,Rx and gnd are connected. The following the spec of the device. VCR Get Version number of hardware and software This command is only active always. Example: VCR Get Version numbers Now i use the perl script and try to monitor the response thru serial monitor.We have tried delay the close port till 10 secs.but i have not seen the response on the serial monitor window. I use a serial tool called teraterm and terminal to repeat the issue i found. but it always works fine with it on same settings done on script. thanks, jis

In reply to Re^2: Serial Port win32 module by jismake
in thread Serial Port win32 module by jismake

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