# Failed to connect to OpenMV’s serial port
**URL:** https://discourse.nodered.org/t/failed-to-connect-to-openmv-s-serial-port/96619
**Category:** General
**Created:** [17 April 2025 13:27 UTC](https://discourse.nodered.org/t/failed-to-connect-to-openmv-s-serial-port/96619 "2025-04-17T13:27:39Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Triman5](https://discourse.nodered.org/u/Triman5)
#### Post date: [17 April 2025 13:27 UTC](https://discourse.nodered.org/t/failed-to-connect-to-openmv-s-serial-port/96619/1 "2025-04-17T13:27:39Z")
Hello,
Has anyone used Node-Red to connect to an OpenMV board?
I could use some help connecting to an OpenMV board.
I’m running Node-Red on windows 10, and using a Python script to connect to the OpenMV board. When Node-Red starts up the serial connection works, but then disconnects over time. When I try to reconnect to the open TCP port I get an error “Failed to connect”. However, when Node-Red is restarted the connection is made and the sensor starts sending data.
What should I look for that may cause the connections to disconnect? Or, is it possible to add something that will reload the udev rules?
Sorry, i forgot to mention in Node-Red the connection is TCP in on port 2113.
Failed to connect to OpenMV’s serial port.
Please install OpenMV’s udev rules first:
sudo cp openmv/udev/50-openmv.rules /etc/udev/rules.d/
sudo udevadm control --reload-rules
Thank you for your help!
---
### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [16 July 2025 13:28 UTC](https://discourse.nodered.org/t/failed-to-connect-to-openmv-s-serial-port/96619/2 "2025-07-16T13:28:43Z")
This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.