Running Node-Red on a Pi 3B and Chromium browser.
I am receiving external serial data from a SERIAL IN node and doing some arithmetic on the payload. Everything works flawlessly according to the debug nodes in the flow and it works fine when I initially switch to the dashboard to view the results.
But almost exactly every 30 seconds the dashboard view flashes the error "CONNECTION LOST". Everything reconnects in a second or two and all is well until after another 30 seconds when the behavior repeats.
Can anyone help me fix this?