Search Results

Search found 28 results on 2 pages for 'hyperterminal'.

Page 2/2 | < Previous Page | 1 2 

• Datareceived Serialport event stops raising after some seconds

  - by Mario

  Hi, I was hoping someone could help me out with this problem. I have a system (VB .NET) where I must read a person's weight (RS232 Sluice) and id (Fingerprint - 2 biometric reader, rs232) and compare it to a database. I have 3 serialports in my app, one for the sluice and the other 2 are to receive the id from the fingerprint readers, both of which call the same sub to get the id from the reader. I've been testing just one reader and it seemed to work fine, I got data from the datareceived and joined it together to get the id. The problem comes at this moment: I put a finger, sends the id, if it's ok sends a message, otherwise, writes the id to a textbox. But in-between reads, if I let 5 or 10 seconds pass without putting a finger on the reader it seems like I get no data at all anymore, the datareceived event nevers gets raised but if I keep putting a finger constantly it works pretty good, this is really weird to me. I was thinking of some things: **Maybe the port gets closed somehow after some time? I never call the CLose() method **The fact both datareceived eventhandlers call the same method and delegate **Maybe the connection settings are missing something? I tested with hyperterminal and the port keeps getting info even after time without activity and I use the same config with my application, maybe I need to change more settings like DTEenable and RTSenable? Please I need some help with this issue, it's to control access so it needs to be running 24/7 thanks in advance!

  Read the article

• How would you start automating my job?

  - by Jurily

  At my new job, we sell imported stuff. In order to be able to sell said stuff, currently the following things need to happen for every incoming shipment: Invoice arrives, in the form of an email attachment, Excel spreadsheet Monkey opens invoice, copy-pastes the relevant part of three columns into the relevant parts of a spreadsheet template, where extremely complex calculations happen, like =B2*550 Monkey sends this new spreadsheet to boss (email if lucky, printer otherwise), who sets the retail price Monkey opens the reply, then proceeds to input the data into the production database using a client program that is unusable on so many levels it's not even worth detailing Monkey fires up HyperTerminal, types in "AT", disconnect Monkey sends text messages and emails to customers using another part of the horrible client program, one at a time I want to change Monkey from myself to software wherever possible. I've never written anything that interfaces with email, Excel, databases or SMS before, but I'd be more than happy to learn if it saves me from this. Here's my uneducated wishlist: Monkey asks Thunderbird (mail server perhaps?) for the attachment Monkey tells Excel to dump the spreadsheet into a more Jurily-friendly format, like CSV or something Monkey parses the output, does the complex calculations // TODO: find a way to get the boss-generated prices with minimal manual labor involved Monkey connects to the database, inserts data Monkey spams costumers Is all this feasible? If yes, where do I start reading? How would you improve it? What language/framework do you think would be ideal for this? What would you do about the boss?

  Read the article

• Qt Serial Port Errors - Data not getting read

  - by user2970546

  I'm trying to read a serial port with the Qt SerialPort library. I can read the data using HyperTerminal. In Qt I used the following code to try and do the same thing. Qt says the the port has been opened correctly, but for some reason, the bytesAvailable from the serial port is always 0. serial.setPortName("COM20"); if (serial.open(QIODevice::ReadOnly)) qDebug() << "Opened port " << endl; else qDebug() << "Unable to open port" << endl; serial.setDataBits(QSerialPort::Data8); serial.setParity(QSerialPort::EvenParity); serial.setBaudRate(QSerialPort::Baud115200); qDebug() << "Is open?? " << serial.isOpen(); // Wait unit serial port data is ready while (!serial.bytesAvailable()) { //qDebug() << serial.bytesAvailable()<<endl; continue; } QByteArray data = serial.read(100); qDebug() << "This is the data -" << data << endl; serial.close(); In comparison, MATLAB code with the same structure as the above code, successfully manages to read the serial port data %Serial Port Grapher - Shurjo Banerjee s = serial('COM20'); s.BaudRate = 460800; s.Parity = 'even'; try input('Ready to begin?'); catch end fopen(s); fh = figure(); hold on; t = 1; while (s.BytesAvailable <= 0) continue end a = fread(s, 1) old_t = 1; old_a = a; while true if (s.BytesAvailable > 0) a = fread(s, 1) figure(fh) t = t + 1; plot([old_t t], [old_a a]); old_t = t; old_a = a; end end fclose(s);

  Read the article

< Previous Page | 1 2