# Ping Sonar Altimeter udp port overlap in blue os

**URL:** <https://discuss.bluerobotics.com/t/ping-sonar-altimeter-udp-port-overlap-in-blue-os/14506>\
**Category:** Blue Robotics Software\
**Tags:** ping\
**Created:** [June 17, 2023, 6:44am UTC](https://discuss.bluerobotics.com/t/ping-sonar-altimeter-udp-port-overlap-in-blue-os/14506 "2023-06-17T06:44:09Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![gcelec](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/gcelec/32/2038_2.png) [@gcelec](https://discuss.bluerobotics.com/u/gcelec)\
**Post date:** [January 28, 2024, 9:57pm UTC](https://discuss.bluerobotics.com/t/ping-sonar-altimeter-udp-port-overlap-in-blue-os/14506/5 "2024-01-28T21:57:08Z")

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I have two Ping Altimeters connected to a vehicle running BlueOS 1.2.0-beta.2  
One Ping Altimeter is connected to serial 5 on the Navigator and the other is connected to a Pi USB port via a BLUART converter. How do I change the UDP port for one of the Ping’s? At the moment both of them use the same UDP port 9090.  
I can see one of the Ping 1D’s when I open Ping Viewer. I tried creating a bridge from the USB serial port to port 9091 but then I couldn’t see either of them in Ping Viewer.  
What is the best way to run 2 altimeters?

![image](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/8/8082904ac3e640ba245a0e382c988614cf590343.png)

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