Tagged Questions

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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20 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
22 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
52 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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0answers
31 views

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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5 views

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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0answers
37 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
11 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
62 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
124 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
117 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
37 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
27 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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0answers
22 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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0answers
148 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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0answers
33 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
57 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
46 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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0answers
9 views

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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1answer
42 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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2answers
115 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
94 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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68 views

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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0answers
18 views

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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1answer
56 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
384 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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0answers
122 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
1k 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 ...
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0answers
146 views

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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1answer
62 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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0answers
878 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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0answers
123 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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0answers
286 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
120 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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1answer
83 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 ...
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0answers
45 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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0answers
164 views

serial port communication with epson tm-t88iv ubuntu

I am trying to establish low level communication with an Epson tm-t88iv thermal printer via shell but I can't figure it out. I'm working on ubuntu 13.10 64 bit with a Dell vostro 1510. I have it ...
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2answers
212 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 ...
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1answer
92 views

Can COM ports be used as RS232 serial ports?

Appologies if I am misusing/abusing specifications. Question: Is it possible to send serial signals via the PC's COM port? Is it further possible to split this port somehow and send signals to two ...
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1answer
582 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
109 views

Piping from serial port on Mac OS X

I have a USB to RS232 adapter with which I'm connecting my MacBook Pro (OS X 10.9) to an EVK1100 board from Atmel. The program on the board outputs a lot of information on the serial port and I'd like ...
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1answer
207 views

How to send characters to a virtual serial port in Windows 8.1

Microsoft is very unhelpful, as per this link. However one method is the command: echo abcdefghijklmnopqrstuvwxyz > COM3 And as per a question here here, another option is: SerialSend ...
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2answers
1k views

Ubuntu: Write to serial port: permission denied

I've connected a USB to Serial bridge dongle, and running dmesg | grep tty outputted the following: [ 0.000000] console [tty0] enabled [603199.380677] usb 2-2: cp210x converter now attached to ...
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0answers
96 views

PL2303 board with USB to UART bridge doesn't show in Device Manager, why not?

The board works b/c if I plug in a mouse and use it the built-in way then it works fine. However, if I attach a USB male on each end from the board to the pc it doesn't recognize that the hardware is ...
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2answers
447 views

Serial PCIE not detected?

I have a "Moschip PCIe 9922 Multi-I/O Controller" 2x serial PCI-E card that I'm trying to get working on Ubuntu 13.04. lspci shows the controllers fine, but "dmesg | grep tty" isn't showing them. $ ...
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0answers
100 views

Check which com port my device uses?

I have a device hooked up to the USB connector and within it's software i have to choose which com port it uses. With Windows XP i would go to the device manager and go to com devices/ports where it ...
0
votes
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 ...
1
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1answer
279 views

Sending Linux commands over serial connection to an Android device

I have a question about being able to send Linux commands over a serial connection to an Android device. I have heard of PuTTY and tried to use it, but I am ultimately lost with it. I was in the ...
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3answers
49 views

Serial Terminal with custom colors

Looked around but I can't seem to find a serial terminal program that has ability to custom color lines according to certain symbols found in received lines. For example I would like to see 'ERROR: ...
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0answers
50 views

Serial Port not able to communicate with device with all versions of windows

I have a piece of hardware that communicates over a serial connection. On a windows 7 machine everything works fine. When I try from a windows XP or Server 2008 R2 I am unable to get any response. ...