Actually I am connecting a couple of DS18b20 temperature sensors to the 1-Wire Pi with all three pins in external vdd powered mode.
Now I want to connect a new temperature sensor - but I have only a 2-wire cable available. Reading the specs I am not sure how to connect a DS18b20 sensor to the board in parasite mode.
Do I need an additional resistor for this part of line?
Can I mix both operation modes on one 1-wire board?