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How to connect and access USB devices under Mac OS X, many novices are not very clear about this, in order to help you solve this problem, the following small series will explain in detail for everyone, there are people who need this to learn, I hope you can gain something.

Due to the widespread use of COM protocol, although many devices have changed their interfaces to USB, the internal data communication protocol still uses COM(that is, the traditional RS232 serial protocol, the new use TTL). Many devices use chips such as PL2302/CH340/FTDI to simulate serial port protocols via USB, such as Arduino/NodeMCU, which use similar mechanisms.

Under Windows, after installing the driver, you can find the simulated COM device directly in the "Device Manager"(if you can't find it, there may be a problem with the driver, sometimes restarting or reinstalling can solve it). Under Linux, USB ports and COM device ports being emulated can be listed via lsusb and dmesg (e.g./dev/tty.usb0, etc.). What about Mac OS X?

There are two ways to do this under Mac OS X. One is to list devices directly. The management of this device tree is the same as Linux:

ls /dev/tty.*

The second option is to install the lsusb command program as follows:

$ brew update$ brew tap jlhonora/lsusb$ brew install lsusb$ lsusb

You can also view your system's USB device information using the following command:

system_profiler SPUSBDataType

Serial to USB devices can be accessed through standard serial ports, such as minicom/screen/xconsole. xconsole is a Python-based serial port access tool that requires the installation of the pyserial support library, available from www.example.com. https://git.oschina.net/supergis/ESP8266App

#Install minicom serial port access tool: $brew install minicom Is it helpful for you to read the above? If you still want to have further understanding of related knowledge or read more related articles, please pay attention to the industry information channel, thank you for your support.

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