MicroPython Forum (Archive)

PREFACE
I was finally able to flash microPython on to an ESP-01S using the Thonny IDE. Curiously, although the ESP-01S has 1MB of Flash, I could not susccessfully flash the 512KB version of the firmware. After trying several variations of installing the 512KB version it kept generating an error at startup. However, as soon as I flashed the 1MB version it started in the IDE without out issue. My thought was if I could get the 512KB version to run, I would have more memory space for an application. I would appreciate any thoughts as to why the 512KB version installation failed to run.

QUESTION
Given that the 1MB firmware is the only one that appears to function properly; does anyone know how much memory space is available for an actual application?

Thanks, Mickey

After 40 some views and no replies; I believe I'm ready to answer my own question.
"Given that the 1MB firmware is the only one that appears to function properly; does anyone know how much memory space is available for an actual application?"

As it turns out the actual size of 1MB firmware is about 590KB, which means there should be about 430KB for application.

Mickey