I'm working on an application where I use specific protocol to send packet over COM port to a hardware. I have the protocol specifications document available. I'm able to send the packets using WriteFile(). Going through the protocol specs, I…
I want to establish a serial connection with a esp32 (connected via USB to my PC) and a test website on chromium (version 118.0.5993.88, Ubuntu 20.04) but the list of serial connections is empty on chromium (on google chrome the…
The problem consists of two parts, one is to upload the data which is an 8*8 numpy array to the mysql database, the other one is to retrieve and update the data with seaborn and matplotlib. For the first part,…
I cannot get PHP dio to work on linux. I receive no error messages, but nothing is output to the serial device when I use dio_write nand reads are always null. I initiate the serial port with $bbSerialPort = dio_open($portName,…
In windows 10 I am trying to read the output of an attached serial device. Using hterm I am able to see the data on serial port COM5. So the serial port works fine. Now using WSL2 (Ubuntu 20.04.3) I…
I bought a china usb 8 relay switch board. It shows up in ubuntu server as a serial device. I figured out the commands to get it to work. *Set Baud Rate of relay board stty -F /dev/ttyUSB0 9600 -parity…
(linux, nginx) Im using ajax go get info from /dev/ttyUSB0 serial port @fgets() is reading port until result !BUT! if the AJAX receives a 504 error from NGINX then the stream does not terminate properly via fclose func. Can i…
From inside of a development container for VSCode (Debian Linux) I'd like to use a COM port for communication via an USB device connnected to the Windows host machine (via WSL2). How can I make the COM port available insie…
I'm trying to establish a connection with a device on my network and have 2 Modbus Protocol related questions: Is the protocol used by this controller "Modbus RTU over TCP" or "Modbus TCP"? Here is the device manufacturer's description describing…
I would like to use an application under Debian, that is written in .net appearantly. I don't have the source, only the .exe file. I installed mono from the Debian repositories. The program starts and runs fine. The program is…