I want to report success using OneWire on an ATtiny84a.
My ATtiny is configured as clockwise pin mapping.
The data pin of a OneWire component (e.g. temperature sensor DS18B20) shall be physical pin 11 which is PA2, ADC2.
It is important to instantiate with
The pin mapping of ATtiny84a allows 2 or A2 for physical pin 11. But OneWire software will not drive pin 11 with