if I want to use ESP-IDF current version from GitHub - espressif/esp-idf: Espressif IoT Development Framework. Official development framework for Espressif SoCs. lastest dev. or lastest stable version( 3.1-beta1), how to config them? Thank you.

PlatformIO does not integrate beta releases of frameworks. And I haven’t seen that Espressif has announced a date when production release of ESP-IDF 4.0 will be ready. So unless you know more about Espressif’s roadmap, it’s probably not possible to give you an ETA, not even a rough estimate.

aussiesusan February 12, 2020, 2:34am 16

Espressif have now released V4 (ESP-IDF V4.0 has been released - ESP32 Forum).
I suppose it is early to ask when this will be supported in PlatformIO but do you have an idea when work might start on porting this?
Susan

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Support for ESP IDF v4

How to use ESP-IDF current version from https://github.com/espressif/esp-idf?