OTA from Core2 to many Atom Lite

  • I have an system containing multiple Atom Lite connected via EspNow with an central "Core2". They are not connected to the internet and the Atom Lite devices are built in unreachable "corners".

    Is it possible, that I save new - via UIflow generated - programs on the SD card, insert this card into the Core2 and distribute these files to the Atom devices for an update?