I've just connected several waterproof DS18B20 sensors to my Raspberry Pi B+ V1.2 running Jessie Lite.
Working on the command line, why does it take so long to display the contents of the sensor's w1_slave
file? I.e. if I
cat /sys/bus/w1/devices/28-nnnnnnnnnnnnn/w1_slave
why does it seem to take a full second to get my reading?
I understand this is perfectly normal. My guess is there's a relatively slow (maybe 200 bits/sec) serial conversation going on in the background?