i have Electronic attendence Machine (Bar code reader type)
i want download all the data at the machine through VB Program
how can i do this.
the machine is connet through serial port (com1 or com2)
Printable View
i have Electronic attendence Machine (Bar code reader type)
i want download all the data at the machine through VB Program
how can i do this.
the machine is connet through serial port (com1 or com2)
MSComm control should suffice
Before you get into any heavy coding, you can probably try it out using Hyperterminal ('free' with Windows) and a modem cable.
Most RS232C equipment of this type works by you sending it some ASCII text and it making a reply. You'll need the manual for the machine, to know what code to use.