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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How to share via TCP serial port CAT

I want to connect my amateur radio transceiver to a linux (Ubuntu) computer with USB cable (serial port (in windows should be COM3 or COM4) like /dev/??? ) and share it locally with TCP, Is it ...
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332 views

Get minicom to behave like PuTTY

I'm bootstrapping some servers over serial. I've been using PuTTY on Windows, but I'd really rather use Linux. In PuTTY, I can simply select serial and enter the baud rate. A serial window pops up ...
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116 views

Where to set advanced settings for serial port on linux

I use a special USB to serial adapter to get data from legacy hardware. Under Windows i have to set some advanced settings in order to start sending data in a way the devices can "understand" and ...
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2answers
376 views

Can I use an UART (serial port) as a MIDI device in Linux?

Can I convince Linux (kernel/ALSA/Jack) to use an arbitrary UART or serial port (usually /dev/ttyS* or /dev/ttyUSB* or /dev/ttyACM*) to output the MIDI messages? This is the way MIDI was done on the ...
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330 views

Setting up a virtual Com Port?

What I need to get to work together: A USB barcode scanner A Windows (7) Machine A piece of software that listens for data over a COM port So I believe I need a way to make USB device appear to be ...
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332 views

Does socat connects two rs232/COM1/serial ports with null modem cable

I have box A under which two virtual machines B and C are running. Each one of this virtual machines exposes it's COM1/rs232/serial port to machine A as TCP port. The virtual machines are Xen HVM ...
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2answers
244 views

Why I have /dev/ttyS* on Linux when my laptop have no serial/RS232/COM1 port?

I am running Debian Wheezy and my laptop does not have serial port. Why do I have /dev/ttyS*, and what will happen when I try to read/write to them? My config: └──> ll /dev/ttyS* crw-rw---T 1 ...
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193 views

Serial connection to Cisco C40 not taking input

I have a cisco c40 video codec that is not accepting the admin credentials that I established for it over SSH/HTTPS. I suspect that the config file is corrupt as there are other erroneous behaviors in ...
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1answer
3k views

How can I test my serial port in Windows 7?

I installed Windows 7 in my system. I want to test my external serial port. But I can't find Hyper Terminal to test the serial port myself. Is there any alternate method to test it?
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1answer
20 views

Cannot use COM ports under my Linux

I am trying to obtain the COM port for a device but after I connect it, it is suddenly disconnected. I got the minicom package installed, and when I execute dmesg | grep tty I obatin this output: [ ...
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270 views

Receive a file using runscript (minicom scripting language)?

With runscript one can script minicom serial line sessions. I try to script the reception of a file transferred with ymodem. Minicom uses external programs for file transmission. I tried runscript's ...
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243 views

“cannot open port!” in a DLL project [closed]

I made a C Console Application in Visual Studio in order to access one of the COM ports with the following code and all went well. #include <windows.h> #include <stdio.h> #include ...
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61 views

Make serial gnu-screen send a line at once

Is it possible to send lines at once in linux screen utility, if used as serial terminal, like for example screen /dev/ttyACM0 9600? By default, every character typed is sent immediately, but my ...
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1answer
441 views

RS232 serial Y splitter to Raspberry Pi (USB) and thermal printer sometimes blocks flow to printer

We are sniffing data from a restaurant point of sale system (RJ45 to DB9) to its thermal printer by using an RS232 splitter and a Raspberry Pi (DB9 to USB on the Pi). This has worked great 99% of the ...
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199 views

How to get the IMEI of an usb dongle? [closed]

I'm wondering if there is any open/universal method to get the IMEI of a 3g usb dongle programmatically.
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1answer
310 views

Why would I be unable to type input when using a using serial console in Linux? [closed]

I have a Slackware machine with an RJ45 serial port and I'd like to have a serial console on it. So I have connected it up to another machine running Hyperterminal. I can only get output on the ...
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1answer
514 views

Unable to communicate with peripheral over Serial USB from Linux

I am struggling with establishing comunications with a peripheral over USB serial on my Linux here (fedora 20/64bit), and I am probably missing some step: I connect the device, a /dev/ttyUSBx port ...
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1answer
727 views

Change COM Port Number programmatically

In Device Manager, I can right click on a serial device, navigate to the Port Settings tab, click Advanced, and change the COM Port Number via a drop-down menu. I need to automate this step across a ...
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2k views

Can't access SerialPort on virtual machine

I'm using VMware Workstation 10.0.4 with a Windows 8.1 64bit as OS on the virtual machine (and the host system). Now I am facing the problem that though the serial port is mapped into the virtual ...
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2answers
2k views

How can I wire RS232 to RS485? [closed]

I've got a wiring diagram but the notes on the side are confusing me. Can someone explain how this pin out should look?
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2answers
569 views

Echo/Pipe command output to Serial line

I have a serial device running on 115200 baud at /dev/ttyUSB0. I need to Pipe the output of a command to it. I Need somthing like: command-that-gives-stdout | command-that-puts-stdin-to-serial --baud ...
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2answers
5k views

How to view serial COM ports but not through Device Manager

How would I go about viewing a list of COM ports in use without the use of Device Manager? I don't want to install any software either. Is there a possible way to do this through the command line?
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42 views

serial port settings for scale model 240878

Has anyone ever have configured the serial port settings for a globalindustrial scale model 240878? I have tried some many configuration already using BC-Wedge but can't get the right value from the ...
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2answers
123 views

Mapping a virtual serial port to a remote serial port

I'm trying to start a multiplayer match on an old game (runs on Dosbox), which uses serial communication. So what I need to do is define virtual comports on both computers running the game, and ...
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1answer
2k views

How to send AT commands to HuaweiE3276 using Putty

i am trying to connect with COM port of Huawei LTE modem E3276 with a java program. To test AT commands i am using Putty as terminal application. Once i give COM port and all other parameters (Baud ...
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Serial TTA0: connection to Virtual machine | Weird characters and no input

I have setup a serial TTA0: connection to an OpenVMS Emulator running in virtual windows. The console serial port is configured as follows: TTA0.type="socket" TTA0.port=":20000" ...
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119 views

How to install Windows 95 from CD-ROM on laptop with no CD drive

I have a old Toshiba T4700CT laptop which I'd like to install Windows 95 on. However I own't Windows 95 on CD-ROM and this laptop only has floppy. I'd prefer not to have to hunt down and pay for a ...
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1answer
307 views

If I plug a two serial devices into usb adapters both into a single USB hub will my computer see two different COM ports?

Hopefully a simple question but I couldn't quite find the answer myself. I'm writing a program in C++ that will, among other things, need to control two devices that are run by serial port. This ...
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1answer
1k views

How to read infrared signals from a IrDA FIR port on Windows 7 (Acer Travelmate 8200)?

I have an Acer Travelmate 8200 notebook with Windows 7. The notebook has a built-in IrDA Fast Infrared Port (on the front panel) which is activated in the BIOS. Windows did auto-detect the IrDA port ...
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2answers
6k views

How can I set the parity bits when using screen to access a serial port

I typically use screen(1) to open a serial port with the command: sudo screen /dev/ttyUSB2 115200 I've tried setting parenb (and a number of other things) using the following command: sudo screen ...
0
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1answer
2k views

Unable to find PORT name in ubuntu 12.04

I am writing a code for serial programming in ubuntu 12.04. I have connected a usb to serial converter with my usb port. Now I want to know On which port I have connected my usb ( for example COM12 ...
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139 views

serial port over tcp without terminal server

Using pandboard, i would like to forward the ttyO2 port where first login comes up and gives a bash. Without using a terminal server (intermediate PC or serial-server) as pandaboard support eth0 how ...
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1answer
112 views

Is there a way to identify the device data is being received from? (python)

Summary I have an MT4000 device connected to my computer using the serial port ttyS0. This is broadcasting data which is being received and read by a udp listener written in Python. I am also sending ...
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115 views

Timeout in COM communication

I have a device that connect to computer and communicate with the computer via a COM port. I tested it with 2 different computer. It works properly in Windows-Server 2008, but return timeout in ...
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808 views

Linux tells me a serial port is in use, but it isn't

On CrunchBang linux (Debian variant), I have a COM port on ttyS0, which I'm trying to use with an NFC device. libnfc responded that it couldn't see any NFC devices, so I tried directly opening the COM ...
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1answer
170 views

Triggering a server to shutdown in receiving a signal via serial port (RS232)

I'm a fresh graduate (Electronics & Commn) and want to start my career in linux administration. I'm using a Ubunutu 14.04 server machine for R&D (with ups). Now my scenario is whenever main ...
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1answer
96 views

Prevent PuTTY from minimizing

I am using PuTTY to monitor a serial port spewing both binary data and ascii data at 1000000 baud. The binary characters are raw uint32_t bytes from sensor values and are essentially random. When ...
0
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1answer
192 views

Redirect TCP/IP to COM port driver

There are many programs which emulate a COM port and let you redirect it to an ethernet port. I want to do the opposite of that. Create a virtual ethernet port that redirects to a physical COM port. ...
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533 views

How can USB 3G modems reach high speeds through a virtual serial port?

I'm a bit puzzled about the virtual COM ports used by modern high speeds USB devices that creates several serial interfaces, one of which is used for data transfer. A modern 3G/4G USB modem can reach ...
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1answer
300 views

How to send a BREAK on a serial port from command line in Raspbian Linux?

I am looking for a way to send a serial BREAK from a shell script in the Debian Linux that comes default on a Raspberry PI without needing any additional software to be downloaded or compiled. ...
0
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1answer
178 views

Output to Serial Port

I am trying to output to an arduino through the serial port in windows using a program called boblight. Basically, I have to tell it where to output. I have tried "COM3", "dev/com3", and "dev/ttyS3". ...
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2k views

Impersonate a serial device with socat

I am trying to use socat to impersonate an external serial device. If I do this in one terminal: sudo socat -ddd -ddd PTY,raw,link=/dev/ttyS32,echo=0 READLINE and run this simplified version of my ...
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307 views

Unable to send/receive from microcontroller virtual serial port

I have a MSP430 Launchpad (microcontroller) which forms a virtual serial port on my Windows 8.1 rig. Somehow I cannot receive/send any data through this serial port on this rig. I have tried 2 other ...
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1answer
11k views

How to transmit single Hex value serial data in Putty using alt code?

I am trying to sent a specific hex value across a serial COM port using Putty. Specifically, I want to send the hex codes 9C, B6, FC, and 8B. I have looked up the alt codes for these and they are ...
0
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1answer
120 views

FT232 USB-Serial not usable with deamon

I am trying to use an USB-Serial converter with a program (a deamon) that is launched at startup on a embedded board (Odroid-XU). The deamon does not work since it fails to open the serial port ...
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Problems sending data over serial port with PuTTY

I am using version 0.63 on Windows 7 x64 in a corporate domain environment. I have an enduser that is programming a bluetooth module over a serial connection. He is using a USB to Serial and we had ...
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276 views

Configure PL2303-based USB-to-RS232 adapter to stay awake when no active device is present

I am resurrecting some X10 devices with the aid of a USB-to-RS232 adapter. The problem is, that the adapter only works with the Firecracker device when there is another serial device on the line (the ...
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1answer
1k views

Local echo using Screen to connect to a serial terminal

Reading through the book "Building Wireless Sensor Networks" I learned that you can use the Screen utility to attach to a serial console. I tried using it to connect to an XBee module and it seemed ...
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485 views

USB to Serial driver for windows

When I connect ingenico terminal with USB cable to my windows 7 laptop, there is new COM port in device manager and I can use it. Properties show that serial port uses sagem monetel driver. I do not ...
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203 views

Is there any reason to use serial port over parrallel port

Serial Port : Serial communication takes place asynchronously, meaning that no synchronization signal (or clock) is required: the data may be sent at random intervals. In return, the peripheral must ...