@tom
Thank you for the quick response.
However,
it doesn't explain why the same board with the same doodle lab nano radio works with the VOXL 2 previously ( just suddenly doesn't work anymore ) and work with other VOXL 2.
And
we are using
https://techlibrary.doodlelabs.com/doodle-labs-nano-oem-mesh-rider-radio-24002482-mhz
It doesn't require that much power
8b15be7c-1e6c-4c43-ab08-6131d478a5ac-image.png
please let me know if any misunderstanding, any suggestion, or any command/method we can use to verify the J port
Thank you.