Moxa's NPort serial device server and MGate Ethernet gateway Launching an Internet of Things or Industry 4.0 initiative is pretty straightforward with new equipment designed for such applications. But ...

Sending and receiving data over a given distance has grown from a passion in humans to a necessity. In 1810, a German man created a system for sending encoded messages via air bubbles. He crafted a ...

You probably remember serial ports as the ancient nine-pin plugs you once used to hook up your mouse or joystick to your computer in the pre-USB dark ages. But tracking down devices that still use ...

Since the introduction of the USB protocol, you don't see many serial devices anymore. For that reason, most manufacturers no longer include a serial port on desktop or laptop computers. Therefore, if ...

We are now going to examine how to access your computer's serial ports. In order to do this, we need some sort of serial device to talk to. A serial port loopback plug is probably the simplest. These ...

In Part I of this article, I briefly mentioned the generic USB driver in the context of getting a USB device to communicate through it easily, with no custom kernel programming. Unfortunately, I ...

Not knowing what’s going on inside of your electronics projects can make it quite difficult to get the bugs out. [John] was bumping up against this problem when working on wireless communications ...

The circuit shown can be used to interface multiple serial devices to the I2C bus, even if they lack the extended-addressing capability required. Information transfer be-tween I2C devices connected to ...

At some point in the past, Unix — the progenitor of Linux — treated virtually everything as a file, and all files were created more or less equal. Programs didn’t care if a file was local, on the ...

In my last column [see LJ December 2002], we covered the serial layer in the 2.5 (hopefully soon to be 2.6) kernel tree. We mentioned in passing that a USB-to-serial driver layer in the kernel helps ...