# Starling HITL no serial port data or connection made

Source: https://forum.modalai.com/topic/3597/starling-hitl-no-serial-port-data-or-connection-made
Category: Development Drones (https://forum.modalai.com/category/44/development-drones)
Tags: starling
Posted: 2024-07-02 00:05:08 UTC by JoeAR_21
Replies: 3 · Views: 865

## JoeAR_21 · 2024-07-02 00:05:08 UTC

Hi, I've been having issues setting up the HITL simulator using this cable connected to the VOXL2 J18 port on the Starling: https://www.modalai.com/collections/accessories/products/mcbl-00010 
and I've been following this tutorial: https://docs.modalai.com/voxl2-PX4-hitl/ 

When I connect this cable to the host-PC running Ubuntu 20.04 there is no USB-serial connection detected or made other than the existing USB-C port and it is not found in /dev/ttyUSB#  and dmesg -w does not show any connection being made. I am unsure if this is a cable issue (I've tried numerous mini-usb cables) or a problem with the way Linux handles the connection as this tutorial video has a similar setup:  https://youtu.be/ysvpJdXFWaM?si=1ltYazXT03agZOAl

Any help is appreciated, thanks!

## Reply by Eric Katzfey (ModalAI staff) · 2024-07-02 17:15:33 UTC

@JoeAR_21 Sounds like you don't have the right cable then. When you plug in the USB to serial cable then you will see a new `/dev/ttyUSBx` connection show up on the host-PC, regardless of whether it is attached to VOXL 2 or not. If that isn't happening then you don't have the correct cable.

## Reply by JoeAR_21 · 2024-07-02 18:40:17 UTC (in reply to Eric Katzfey)

@Eric-Katzfey Is there a reliable link to a working version we can purchase or exchange it with? Thanks!

## Reply by Eric Katzfey (ModalAI staff) · 2024-07-02 18:43:30 UTC (in reply to JoeAR_21)

@JoeAR_21 I would just buy something like this: https://www.adafruit.com/product/954?gad_source=1&gclid=CjwKCAjwyo60BhBiEiwAHmVLJQuZ-9b9QJJtpK_PN6k5qN0jQMigyLn_nbWc5deXCZ8ZnSInlYXwrhoCxZAQAvD_BwE