hi,
Are there 4 wires from your USB to RS232 adaptor.? +5V, 0V, TXD, RXD [+D, -D]
If you are not drawing current from the PC's USB port to power your project, the +5V can be left disconnected from the project.
The USB/RS232 0V must be connected to your project.
E
Are there 4 wires from your USB to RS232 adaptor.? +5V, 0V, TXD, RXD [+D, -D]
If you are not drawing current from the PC's USB port to power your project, the +5V can be left disconnected from the project.
The USB/RS232 0V must be connected to your project.
E