I have a few questions about programming serial port devices.
1.) I have 2 serial ports on the back of my computer. I need to have more than 2 devices attached to the back of my computer. Can I use splitters to connect more devices to these ports, or do I have to install a PCI card to get more ports. Also, how many serial ports can my computer handle (Windows)
2.) How do I address each individual device (If I have multiple ones plugged in how can I specify which one I want to talk to)?
3.) The devices I'm programming simply use the power from the serial port to work. They have no chips or circut boards in them. Is there a way to identify these devices?
4.) Is there a way to control how much power is sent through the serial port?