Hi,

I used multiple DS18B20's in two ways: multidrop (all sensors on one pin, must know address of each sensor) and single (4 sensors, each on its own pin - you can skip addressing)

Since I have short cable and 20 DS18b20's on it, I just connected them to +5V, GND and I/O pin. I also used pull up (8kohm) on data line.

If you want some source code in C, write.

I am also interester in driver that can drive 20 DS's on a 50-100 meter UTP cable.


regards, Damjan Lapuh