Add example to update ESP32 via SD card#628

Merged

me-no-dev merged 4 commits intoespressif:masterfrom

Curclamas:feature-sd_update

Sep 29, 2017

Commits on Sep 12, 2017

Add example to update ESP32 via SD card
Curclamas
committed

Commits on Sep 13, 2017

Commits on Sep 28, 2017

Check whether update.bin is a file
Curclamas
authored