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I have an ESP32-S3-N16R8 devkit board with two USB ports and I have a device that communicates via Serial USB. I want to read serial data from ESP32 board and process it. So the ESP32 board should act ...
Alex's user avatar
  • 67
0 votes
0 answers
83 views

I'm currently using a SBC (a Raspberry Pi Zero 2W) to receive data from a device (let's call it Sensor). Sensor is connected to the micro USB port on the SBC through an adaptor with FTDI FT232R USB ...
Isaia Ismaele's user avatar
  • 55
1 vote
0 answers
71 views

I have a C# application that uses the USB serial device mounted to /dev/ttyUSB0. I need to send a status request to this device, which I can do very easily with printf "\00\48\ee\ff" > /...
ryansin's user avatar
  • 1,857
2 votes
1 answer
126 views

I'm running some serial commands to test connected devices under test (DUTs), & we have a need to run these in parallel/concurrently to speed up our tests. I would like some feedback on which ...
frimann's user avatar
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1 vote
0 answers
55 views

I’m trying to talk to an EBYTE E32-900T30S LoRa module from a Raspberry Pi 4 using the Pi’s UART and a small Python wrapper. The module’s AUX pin goes HIGH, but I get no response to AT queries (e.g. ...
Dobrawa Rumszewicz's user avatar
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179 votes
13 answers
364k views

I'm trying to get the program to give me a beeping noise. I'm on a windows machine. I've looked at http://docs.python.org/library/winsound.html But not sure how I can program this with a barcode ...
Marc Brigham's user avatar
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0 votes
0 answers
35 views

I’m debugging a strange issue with an RS232 serial device using various terminal applications on both macOS and Windows. The core problem is this: • When I connect to the device using a single ...
demirmehmet0's user avatar
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2 votes
2 answers
182 views

I have built a custom yocto image for my BBB and I'm having trouble with the UART. I have two uarts mapped ttyS1 and ttyS4. But for some reason I'm having trouble with ttyS1 timing out writing data, ...
Thomas Snyman's user avatar
  • 31
2 votes
1 answer
117 views

I am experiencing an issue with a serial port connection on my Seeed Studio reComputer J30 (Jetson Orin Nano Industrial). When I reboot the device, the serial port connection works fine on the first ...
Luc Lagarde's user avatar
  • 117
202 votes
10 answers
298k views

I need to test a serial port application on Linux. However, my test machine only has one serial port. Is there a way to add a virtual serial port to Linux and test my application by emulating a device ...
JeffV's user avatar
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0 votes
3 answers
96 views

Sorry to ask what is probably a simple answer but I've spent a couple of hours looking through documentation and can't seem to get my code working how I think it should work, I've not used C# in years ...
Wes Price's user avatar
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1 vote
0 answers
35 views

I'm working on a project where I use a StarTech USB56KEMH2 modem with Python (PySerial) on Linux to call my building's buzzer (MICROM system) and open the door by sending a DTMF 9 tone. The modem is ...
Colunga_333's user avatar
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0 votes
1 answer
122 views

I am sending 11-byte data with random value from raspberry pi to the computer. I encoded the data with Start Byte ($) and End Byte (#). And when I try to receive and parse the data from my computer ...
Vijayakumar Sargunam's user avatar
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0 votes
0 answers
124 views

I would like to know if there is a reliable way to decode an H.264 NAL stream coming through a serial port using software. So far, I have managed to decode a single frame using a python script. In ...
Peter's user avatar
  • 11
143 votes
15 answers
774k views

What is the proper way to get a list of all available serial ports/devices on a Linux system? In other words, when I iterate over all devices in /dev/, how do I tell which ones are serial ports in ...
Thomas Tempelmann's user avatar
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0 votes
1 answer
84 views

I'm struggling with this one since last 2 days. Would really appetite any pointers. Summary: I am connecting to a system over serial. I can make it do anything I want with putty. For any command I ...
S4nd33p's user avatar
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0 votes
2 answers
234 views

I have been trying to communicate with a I-7000 IO module device that supports Modbus. In general I am able to successfully send commands such as writing to a coil or reading a coil but I face one ...
Angel Hadzhiev's user avatar
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3 votes
0 answers
101 views

I am having a problem with expect (v5.45 on macOS) that I cannot figure out a solution to. No matter what settings I have tried, any data (with value over x7F) is always sent as unicode, adding extra ...
epooch's user avatar
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0 votes
0 answers
253 views

I've set up virtual COM ports with com0com (COM20 and COM21), but I'm having trouble accessing them through Python's pyserial. What I've tried I can successfully create the port pair using com0com's ...
Foad S. Farimani's user avatar
  • 14.4k
0 votes
1 answer
56 views

I would like to access the hardware serial port (tty*) , not the usb serial port(last resort if not possible), via unity, I have no experience in android development and have barely managed to get a ...
Club Unity's user avatar
  • 1
1 vote
5 answers
6k views

I recently bought an esp32c3 supermini as they look really neat and small with slightly better specs over an esp8266. I used the arduino framework to be able to program the board, and installing the ...
Tokens94's user avatar
  • 151
2 votes
0 answers
186 views

I have to use a rs232 serial communication in a C program with a petalinux OS. And I have problem to read data from my serial. As I am not familiar with linux OS I have searched on internet some ...
Remi45's user avatar
  • 41
0 votes
1 answer
499 views

I'm trying to access the UART connected to the standard GPIO pins 14/15. As root, I can access them just fine. As a regular user, I always see a super abstract message: $ minicom -b 115200 -D /dev/...
judepereira's user avatar
  • 1,317
0 votes
1 answer
483 views

I have two ESP32 boards connected back to back through a serial cable, using pin 16 for Rx and 17 for Tx. They exchange simple hello world messages through the serial2 hardware port on the ESP32. The ...
Raja's user avatar
  • 1,319
12 votes
5 answers
43k views

I am using Win10 and Linux Ubuntu on WSL 2.0. For testing purposes of some programs, I would like to use the serial port of my PC in "loopback" with Linux running through WSL. Basically I ...
Claudio La Rosa's user avatar
  • 171

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