Do you plan to add flow control to the play store version as well? Unfortunately, my doesn't device doesn't allow third party store installations.
I'm getting the PIPE_FULL error quite often
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Is it the app from the play store, or the F-droid nightlies? I think the Play Store one still doesn't have flow control enabled