A modification of the Arduino OneWire library maintained by @PaulStoffregen. This modifications supports the ESP32 under the Arduino-esp32 Environment.
No changes are required for compatibility with Arduino coding.
Original Source is Paul's 2.3 version. Forked 28DEC2017
@stickbreaker V2.3.1 30APR2018 add IRAM_ATTR to read_bit() write_bit() to solve ICache miss timing failure. thanks @everslick re: https://github.com/espressif/arduino-esp32/issues/1335 V2.3 28DEC2017 original mods to support ESP32