Arduino Onewire library if your Atmel328p is running at 4Mhz
Running the processor lower than 4 Mhz gives timing issues in Arduino.
This library allows you to run at 4Mhz.
ginodecock/OneWire4Mhz-ArduinoLibrary
Arduino Onewire library if your Atmel328p is running at 4Mhz
C++