For someone who isn't familiar with these terms and the context in which they are used, they can be confusing at times. These are all words that get thrown around a lot when working with electronics, especially microcontrollers. Here's the original source where I discovered this.COM ports. To exit, press Control-A, Control-/ (Control-A is the default interrupt sequence so you can give commands to the screen program, and Control-/ exits.)

I think screen emulates a VT100 by default if you need some exotic settings (start/stop bits, etc.) you may need to configure it, which I've never done. You should be talking to it directly.type away, just like you would in HyperTerminal. Start it by typing 'screen /dev/ttyUSB0' (or the appropriate name for your device). The easiest thing is to use the built in 'screen' program. The device name depends on the drivers installed for the device, so consult documentation.)Īnyway, there are some terminal emulators, similar to HyperTerminal, for OS X, but I don't ever bother using them. (If you had a physical serial port on the machine, it would be '/dev/ttys0', and some adapters make different names, like '/dev/tty.KeySerial1', etc. But for many USB-to-serial adapters, like the Keyspan, once you hook them up, a new device is created, usually called '/dev/ttyUSB0'. I don't know how your USB device presents itself to the system - you may need to install a driver in order to get anything to work. Well, since modern Macs are derived from BSD (basically UNIX), they don't have 'COM ports.' Their equivalent are tty devices, stored in /dev.

Hyperterminal mac