debug battery powered node

[carleki]

Hello !

I have sometimes tempertures nodes, powered by batteries, which are freezing ... If I reboot the node, all is working correctly ...

How can I debug it ? If I connect the node to my computer, it will change the power input, so if it's a power related issue, I will not see it ...

Do you have any idea ?

Thanks !

[gloob]

Why not just connect the rx and tx pins and ground?

This is how I debug my battery based sensors and run them from the battery. You even dont need the rx pin if you don't want to send commands to the node.

[carleki]

I didn't know it was possible !

So : Vcc and GND from the battery, and TX, RX and GND to my usb serial adapter ?

[gloob]

Correct.

[carleki]

@gloob said:

Correct.

thanks