I2C regression in esp-idf master as of 2017-12-28 (7d0d2854d34844c7cfc49fc0604287c5e033f00b)
Posted: Thu Dec 28, 2017 2:05 pm
A regression has been introduced into the I2C driver making it unusable. A PR to fix this is available here: https://github.com/espressif/esp-idf/pull/1443