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 do I read Bluetooth Low Energy transmitted data programmatically on Mac OS X 10.9.5? [migrated]

I'm trying to read Bluetooth Low Energy transmitted data programtically using Ruby. Bluetooth Low Energy technology provides no support for the Serial Port Profile (SPP) in the standard Specification ...
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392 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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How can you test communication on a COM/Serial port?

We have a OHAUAS defender 5000 series model T51P Weighting scales with a COM port. if we connect this to a PC we should be able to get the weight on the computer by sending a command to it. Is there ...
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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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1answer
8 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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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 ...
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2answers
20 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
38 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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3answers
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File transfer over a serial line

I have 2 linux computers, and a serial line between them, one of them is only accessible through a serial line that has shell on it. How can I transfer files between the 2 computers? I've heard that ...
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Number of terminal rows in Kermit after closing editor

I am connected to an embedded computer target through its RS232, I am using kermit in a terminal. When I use ls, less, and other command line programs, the whole vertical size of my terminal is used. ...
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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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51 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
98 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 ...
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1answer
89 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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1answer
35 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
26 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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3answers
497 views

Setting up a Digital VT100 as a terminal to OS X Lion

I have followed this guide: http://www.club.cc.cmu.edu/~mdille3/doc/mac_osx_serial_console.html And I installed the closed-source Prolific driver (the open source one and the FTDI ones always gave ...
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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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145 views

Configure UART GPS module for Friendlyarm nanopc-t1 on Android

I have a NanoPC-t1 device and I'm running Android 4.2.2 on it. I want to install my gy-gps6MV2 module and make it work as the device GPS. Do I need root access? (I already tried to root device with ...
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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
52 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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42 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 ...
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Modbus Communication not Working

https://code.google.com/p/stm32modbus/source/browse/#svn%2Ftrunk%2F%20stm32modbus%20--username%20ickingdom%40gmail.com%253Fstate%253Dclosed I have debug and compile this program successfully but ...
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33 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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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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USB modem on OS X doesn't respond to Python modules

My goal is to communicate with my USB modem on my iMac with Python so I can send commands and read the results and responses. I have a USB modem hooked up to my iMac and I can communicate with it ...
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1answer
88 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. ...
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2answers
27k views

How do I know which /dev/ttyS* is my serial port?

I have a laptop which has only one serial port. I went into: /dev directory, and I found: ttyS0 ttyS1 ttyS2 ttyS3 How do I know which of those "ttyS" refers to my serial port?
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1answer
1k views

Creating virtual serial port in Fedora

I want to create a virtual serial port in Fedora. I'm using Java code to communicate over a serial port. I want to test this code with out any serial devices connected.
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3answers
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Dell Optiplex 755 - serial port driver for windows 7 64bit

I have a dell optiplex 755 (tower), it was shipped originally with vista but was recently reinstalled using Windows 7, 64 bit. THe serial port driver, and something else called "PCI Simple ...
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My USB doesn't detect peripherals until restart

I have a vaio s series laptop,running windows 7. it has 3 usb ports. with flash memory and storage devices I have no problem with them. but with peripherals like mouse and USB2Serial I have problem ...
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50 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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1answer
561 views

Wrong newline character over serial port (CR instead of LF)

I'm trying to talk to a device using a usb-to-serial converter on linux. Drivers are working, the device exists at /dev/ttyUSB0. There is a strange problem (checked with a null-modem cable to another ...
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1answer
333 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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113 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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121 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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libftdi disconnects ttyUSB0

After rebooting, my USB device connects fine. $ dmesg -T | grep tty [Sun May 25 10:14:43 2014] console [tty0] enabled [Sun May 25 10:14:43 2014] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = ...
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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 ...
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1answer
60 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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852 views

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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277 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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0answers
115 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 ...
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117 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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2answers
486 views

NetBSD Networking

I have an old Toshiba Satellite 4015CDT, with Pentium II MMX, 32MB RAM, 4GB HDD. It also has one USB 1.0 port, parallel and serial ports, a 3.5" floppy drive and a CD-ROM drive (probably almost dead). ...
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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 ...
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1answer
25 views

how to skip Hyperterminal splash page (spinning globe)

Is there a secret trick to skipping the 5 second animated splash screen when Hilgraeve HYPERTERMINAL starts? When I open HyperTerminal (HyperTrm.exe), I want it to open immediately, and not show me ...
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42 views

Avoid USB/Serial adapter port change in Windows enviroment

I would like to know if there is some way to "fix" a serial port to common usb/serial adapters. Many times I saw that changing usb port of adapter it takes a new serial port number. It happends also ...
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1answer
315 views

Usb to Serial RS232 adapter with full handshake/flowcontrol support

I need a usb to serial RS232 DB9 adapter to connect a printer. I bought an adapter with a very common-used Prolific PL2303XHD chip, but I have many many troubles with flowcontrol. I tried to switch to ...
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2answers
209 views

Is there a device with multiple serial ports to configure multiple devices

Is there a device that has multiple serial ports that I can connect to my computer so that I can connect other networking devices that can be configured from the serial port to this device and then ...