The serial interface or serial port, also known as RS-232 is a communication port used to connect modems, mouses, some printers, scanners and other hardware equipment.
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Legacy software serial port commands
Multiple systems: Windows 7 64bit and Windows XP.
I am working with a piece of legacy software that connects to a barcode scanner on a serial com port and formats the results of the barcode scan. The ...
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21 views
Overheat alert warning on CPU through Serial port
Is there any way to make an external alarm go off if your CPU reaches a certain temperature using your serial port? I over-clocked my processor and I get warnings if it reaches a certain temperature, ...
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2answers
2k views
How can I use my cell phone to establish a dial-up networking connection?
I am using Windows 7 and have a BlackBerry with T-Mobile (U.S.). I have paired the phone with my computer over Bluetooth, which automatically creates a serial port for it. I am able to open the port ...
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16 views
Is there a Windows driver that can masquerade a telnet connection as a serial port?
I've some hardware which works via IP (https://www.sparkfun.com/products/10822 - RN XV WiFly). The device has RX/TX lines, connected to another device I am communicating with (an Arduino) - using ...
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2answers
241 views
Redirecting serial port keeping ability to send signals
I have the following scenario: a laptop running Windows XP, connected to a meter through its serial port.
I need to read/write to this serial port from a remote computer (running windows 7). I also ...
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2answers
225 views
Is there any way to check which baud rates are supported on a serial device?
Is there any way to check which baud rates are supported for a serial device on Linux?
I've poked around the /sys/class/tty/ttyS0 directory, but I can't see anything in there that lists this type of ...
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1answer
39 views
How to read from a .csv file (how to send the file to the uC) [closed]
I am using a 32-bit uC for my project. I have implemented serial communication, so I can communicate with the uC via hyper terminal. Now what I have to do is to read values from a .csv file, interpret ...
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2answers
3k views
How can I login to Ubuntu using a USB serial port?
How can enable remote terminal login into Ubuntu 9.10 using a USB serial port?
I created device /dev/ttyUSB0 and i want to allow logins using Hyper-Terminal.
I found some resources but they are ...
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135 views
How can I log in my alteon2424?
I was given an old alteon 2424.
Pluging a serial cable on the console port allows me to see it booting.
I can choose at boot between 2 images in nvram by pressing ctrl o.
Both images talk about ...
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2answers
130 views
How can I access putty from linux terminal?
I'm trying to configure my cisco 2950 switch and I need to use putty on linux. Im not used to using linux but I've been told that putty is built in to linux terminal. I have my serial console cable ...
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44 views
How can I set the power on default state of serial port on Windows 7?
How can I set the DTR line to high by default when a Windows 7 machine starts up?
Background: My own Windows service sets the condition of the com port lines to indicate its status. One of these is ...
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2answers
1k views
Serial port access errors in WINE
I have a setup in which I use a USB serial adapter + some application which sends and receives data using that serial usb. But this setup which works on a Windows, or even in a VMWare Virtual windows, ...
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3answers
3k views
This device cannot start. (Code 10) - Gigaware USB - Serial Adapter
I'm trying to use a Gigaware USB -> Serial adapter that worked fine on Windows XP on Windows 8. It's not working and I get
This device cannot start. (Code 10)
A device which does not exist was ...
3
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2answers
5k views
Is there a free way to monitor a serial port on Windows 7 x64? [closed]
The title questions pretty much says it all. I've looked around quite a bit, but I have yet to find a free way to monitor a serial port (without opening or blocking it from other applications), that ...
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1answer
30 views
Determining if I need a 32 bit or 64 bit driver for OSX 10.7.2
I'm looking to download an ftdi driver for OSX 10.7.2.
I will be using it for work I'm doing in python 2.7.x, using pySerial.
I have no idea how to determine whether I need to download the 32 or ...
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1answer
23 views
How to quickly determine which process (if any) listens to a serial port
I am looking for a command to see the process listening to a port, e.g. /dev/ttyS0 (with root rights on a Linux system). I can do that with
lsof /dev/ttyS0
but this is really too slow. Also, I ...
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38 views
Custom USB Device to COM Port
I have a controller board plugged in my USB. I've installed the correct drivers and it's now detected. In my Device Manager however, it shows up under Custom USB Devices. I'd like to see this device ...
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3answers
261 views
PCIe x1 serial card suddenly stops working
The Perpetrating PC...
MB:MSI Z77A-GD65
OS:Windows 7 Pro
CPU:Intel Core i5-3570k Ivy Bridge
Memory:16gig G.Skill Ripjaw
PSU:Cooler Master Silent Pro 700w
HD:1TB WD Cavier black
Rosewill rc-300e ...
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44 views
Serial Communication from Arduino to PC [closed]
I want to make applications (with GUI) which can communicate with my Arduino. As a beginner to this, which language would the most useful and and functional. It would be nice if languages can be ...
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2answers
143 views
Is there free software that can convert serial input messages to TCP/IP packets?
There is a serial port that can receive text messages from the external device. Now I want to pass these messages to a special software. But that software can only receive TCP/IP packet. For example, ...
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2answers
3k views
Cleaning up Windows XP serial ports
I have been using USB-to-serial port converters and have not been careful to plug them into -exactly- the same USB port every time. What is the best (and safest) method to clean up the giant mess of ...
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2answers
1k views
What (traditional) modems work with Windows Vista 64-bit or Windows 7 64-bit?
I have a US Robotics v.Everything modem that I occasionally used for fax and Internet dial-in backup access. However, that modem connected to my previous PC using a plain RS-232 9-pin serial port. ...
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1answer
1k views
Serial connection between 2 computers
I recently purchased a USB to serial cable to connect to other desktop computers (reason is for headless servers), and I don't know if it is working right or I am just doing something wrong. The USB ...
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1answer
2k views
How can I send data to the serial port from a Linux shell?
I need to find the linux way of running the following DOS commands:
MODE COM1: 9600,N,8,1,P
COPY FIRMWARE.COD COM1
Is this possible? I know COM1 in Linux is /dev/ttyS0 but that's about it.
How do ...
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163 views
Virtual COM Port Using usbser.sys Keeps Dropping
I have a C# wpf application that is communicating with a device via a virtual com port over USB. This device is using the usbser.sys driver.
Everything works normally as expected and communication is ...
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1answer
45 views
IrDA adapter - how to enable speeds less than 9600
I need to use infrared usb adapter tekram IR-410W under win8.
unfortunately it doesnt create virtual com ports.
another trouble is IrCOMM driver doesnt work under win7/8
i need to communicate to ...
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36 views
How to connect a linksys SRW2048 to rPath Linux
I get a used Linksys SRW2048 and connect it with serial (0-modem) cable to a linux machine with rPath. Now I try to connect to the Switch with following command:
agetty -L -f /etc/issue 19200 ttyS0
...
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147 views
How to use ‘setserial’ before setting up a null modem connection with ‘pppd’?
I'm going to set up a TCP/IP connection between two Linux boxes via serial ports. I found something useful at http://tldp.org/HOWTO/PPP-HOWTO/direct.html. It says that we can use pppd to set up a ...
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1answer
532 views
Gigaware USB to serial adapter not working on Windows 8
I'm trying to use a Gigaware USB to serial adapter on my new computer. It worked fine with Windows Vista and XP, but not on Windows 8. It's not working and I get this message under device properties ...
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1answer
161 views
Mount serial port through ssh connection (Mac/Linux)
I'm working on a MacBook Pro under mountain lion and I would like to mount serial device connected (/dev/ttyUSBx) on a Linux PC under Ubuntu 12.10 through SSH.
I tried with sshfs to mount /dev ...
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2answers
161 views
Terminal emulator in windows which can store commands
Is there any good terminal emulator program which will help me save commands so I dont have to type them again and again . It is for communicating with a serial port (COM port) in windows and I have ...
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1answer
93 views
Displaying / Setting USB BlueTooth Buffer Size
In Windows 7 there is a sequence of mouse clicks on various icons which will display the buffer size of a given Com Port.
I can't remember that sequence at this moment.
I know I did it once before. ...
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2answers
143 views
Is DB-25 port Serial or Parallel?
I would like to know whether the DB-25 port is a serial or parallel port. These ports are otherwise known as printer ports, aka LPT port.
I'm very confused about this since, according to Wikipedia, ...
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1answer
57 views
Serial cable vs USB-to-serial adapter
I have a device with RS-232 and a control program on PC. It works fine via serial cable but with usb-to-serial some functions don't work correctly.
Why usb-to-serial doesn't work?
I tried to change ...
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1answer
171 views
Emulating a Serial Device on OS X
I have been working with building Microcontroller (mostly Arduino) based devices for the past few months and have been quite surprised by the seeming lack of any form of serial emulation.
I know ...
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2answers
292 views
Is there a limit to the number of USB to RS-232 ports my computer can support?
I am looking to get a whole bunch of digital output pins that I can directly control from my CPU and I am hoping to use a whole bunch of USB to serial ports to achieve this.
Assuming I am using a ...
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1answer
115 views
Serial com issue with virtual box
I have an issue in using the serial port with virtual box.
My host system is Windows, my guest system is ubuntu.
I have setup a serial connection between the local Windows and another distant PC, ...
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Forwarding Data from COM Port via Ad-hHoc Network on Linux
I'm new to Linux and I'm trying to setup an ad-hoc network between two computers in order to send data coming from a COM port on one computer to the other. Currently I'm running Lubuntu 12.04 on both ...
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3answers
545 views
Why do some serial interfaces have many pins?
Various hardware connectors that are dubbed "serial", e.g. USB and PCI-express, have many more than 2 pins/wires. In fact even the good old "serial port" has them.
But since they are serial, not ...
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178 views
RS232 beginner tutorials [closed]
I am really beginner in Linux and in electronics but I want to learn programming hardware using raspberry pi board, since I have one (model B).
I have installed raspbian os, now I want to understand ...
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128 views
Send <esc>a with picocom
I have connect a USB serial adapter to my Linux box. I'm trying to connect to the device with picocom and I have to send an escape sequence like
<esc>-a
(hex: 1B 61)
How to do this,
...
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1answer
100 views
How to make a terminal (running in Atari emulator on Mac) talk to a telnet BBS?
There are a number of Atari ST BBSes still running today, available via telnet. I connect to some of these occasionally using SyncTerm on my Mac.
It would be even better to use an ATARI terminal ...
2
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1answer
322 views
USB-to-Serial showing gibberish at 115200 Baud
I've got a serious problem which drives me crazy because I tried everything I could think of.
First of all, I made a video: http://youtu.be/boghkuq7L_s
but please read the following text for more ...
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2answers
80 views
Serial Communication vs Device Drivers
My understanding is that serial communication is for direct CPU-to-CPU (or microcontroller-to-microcontroller) communication along a serial bus.
My understanding is that a device driver is for ...
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3answers
299 views
What is the minimum delay between two consecutive RS232 frames?
I have been working on creating a UART on an FPGA. I can successfully transmit and receive single characters typed on PuTTY. However, when I set my FPGA to constantly write a large sequences of "A", ...
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6answers
2k views
Multi serial devices on one port
I am developing one software for managing parking lot. System is designed to use four HID RFID devices for authorization clients on gates. Each device should be connected to server by Serial port ...
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1answer
116 views
Again, how can I get the data sent to printer by attaching linux pc to the printer side of the wire, hen print it somewhere else?
The similar question was asked by davidb, however the circumstances are different.
I have a device with the 9-pin RS-232 port and an ancient printer connected to that device. I need to replace the ...
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3answers
147 views
Simulate serial printer on pc
I have an old lab device which prints it's result to a serial printer. I need to replace the serial printer with a computer. I have connected the device's 9 pin serial port to the computer's serial ...
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80 views
Piecing together low-powered hardware for an RS-232 terminal server
I'm working on reconstructing my Cisco lab for training/educational purposes and I found that the actual terminal server I have is dead. I have a couple of 8-port PCI serial cards which would be more ...
2
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1answer
256 views
Sniff data on serial ttyS0 by virtualbox COM
I am running VirtualBox under linux. Gues OS is Windows XP.
I have an IR transmitter connected to serial port, (yes the old kind DE-9), on my box and added the following in VirtualBox "Serial Ports":
...
