Tagged Questions

A serial port is a physical interface through which data is transferred (uni- or bidirectionally) one bit at a time. Largely superseded in the consumer market by USB, serial connections are still commonly used in many other specialist applications. Typical applications include scientific/medical ...

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3
votes
1answer
26 views

Share Serial Port on Linux

I'm using a Raspberry Pi for a project that that needs to be able to write and read to a serial port, but from different programs. Program A needs to be able to read from the serial port, where ...
0
votes
1answer
33 views

Arduino wireless and Node.js

I'm working on an Arduino project to control motors and read sensors. I decided to use the web view using Node.js as a medium channel to read/write from the serial port to the browser using either ...
0
votes
1answer
31 views

Is that possible to Inject Func<> to an Event

I am using SerialPort_DataReceived event in my project. But I want to have different Strategies of receiving data inside the body of this event. I have googled and I found that one way is to inject ...
1
vote
1answer
19 views

Python IEEE754 from bytearray

I have a IEEE-754 number being sent to a Raspberry-Pi running Python3. Its sent as four serial bytes, but I can't figure out how to assemble this into a floating point number in Python. Tried the ...
0
votes
0answers
25 views

Android Mega ADK 2560 Arduino LED interfacing without shields

I have a Arduino Mega ADK 2560, can I control an LED from an android app without any shields attached to the arduino ie via usb serial cable? I have browsed for this and most of them are using a ...
0
votes
1answer
23 views

Programmatically Correct Serial Port Data to Readable Format

The situation is that at my place of work, we have a call data recorder (CDR) feeding data into a server through a serial port. As I understand it, the good data from this is a record of all the calls ...
0
votes
0answers
11 views

Is there a way to see -serial flag mapping on guest side with QEMU?

In QEMU 1.4.0 emulating beaglexm with a Linux 3.2.8 Image This is the invoke QEMU cmd: `$ sudo qemu-system-arm -M beaglexm -m 1024 -sd ./test.img -clock unix -serial stdio -device usb-mouse -device ...
0
votes
2answers
151 views

ttys0 misses/garbles data while ttyusb0 does not

A program in c using termios works well if the port is ttyusb0, but misses/garbles data if got through ttys0 i.e comport com1. proogram runs under ubuntu 9.04 & 10.04 Please suggest the remedies ...
-1
votes
1answer
61 views

C# Error the type or namespace

I get this error Error 2 The type or namespace name 'StringList' could not be found (are you missing a using directive or an assembly reference?) This is my source code: try { ...
0
votes
1answer
30 views

USB Barcode reader in C#

I want to read a barcode from a USB scanner. I am getting code like héà&"à')&'_h or qà&é"'(èq when using SerialPort connection. Is there a way to decode this value? private ...
0
votes
0answers
11 views

Do I need special udev rules do make ttyO serial ports work with QEMU -M beaglexm?

This question is related to one that I already posted and want to discart a possiblity of malfunction. question related: ttyO ports do not have the good port address on QEMU 1.4.0 running image for ...
1
vote
0answers
28 views

ttyO ports do not have the good port address on QEMU 1.4.0 running image for beagleboard-xm

I'm running an Linux Image (kernel 3.2.8) for beagleboard-xm on QEMU's 1.4.0 emulator Ubuntu distribution for 13.04. My image is created using Buildroot beagle_defconfig. I added some pkgs to be able ...
-2
votes
1answer
55 views

C# sending 2 files through COM port CLOSED

I have a project and in that project i have to send Files over the COMport. In this case COMport1. I already have the function to send 1 file. Im using Writetobyte for that. But here's my problem. I ...
1
vote
2answers
18 views

How to view properties of an open serial connection?

How can I view which properties an open serial connection has? So the baud, start and stop bits, the parity, the number of data bits and especially how the to be transmitted string is terminated (line ...
0
votes
0answers
9 views

Java COM port app: I see the COM ports in Eclipse, but not from executable JAR

I have a strange problem with my Java app. I need to list the available COM ports on my computer (later I'm connecting to some devices for communication purposes). When I run my program in Eclipse ...

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