DokuWiki

• http://wannabe.guru.org/scott/hobbies/temperature/
• http://www.technotes.se/?p=26
• https://bitbucket.org/hadara/koduvana/
• http://www.langmaier.com/post/Reading-a-DS18B20-temperature-sensor-using-a-DS9097-adapter-with-CPP-on-Linux

vi /etc/init.d/led_aging.sh

#!/bin/sh -e
### BEGIN INIT INFO
# Provides:          led_aging.sh
# Required-Start:    $local_fs
# Required-Stop:     $local_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start LED aging
# Description:       Starts LED aging (whatever that is)
### END INIT INFO

x=$(/bin/ps -ef | /bin/grep "[l]ed_acc")
if [ ! -n "$x" -a -x /usr/bin/led_acc ]; then
    /usr/bin/led_acc &
fi

apt-get install owfs


mkdir /mnt/1wire


vi /etc/owfs.conf
# uncomment:
mountpoint = /mnt/1wire


vi /etc/init.d/owfs
#!/bin/sh
owserver -u -p 4304


chmod 777 /etc/init.d/owfs


# igonre warnings!
update-rc.d owfs defaults


apt-get install rrdtool


apt-get install ow-shell


# start owfs manually
/usr/bin/owfs --allow_other -u /mnt/1wire


# if owSERVER doesn't start at startup
killall owserver
sudo /etc/init.d/owfserver

• Red wire - +5V(100mA max) (not used in parasite setup)
• White wire - +3.3V(10mA max) (not used in any setup)
• Black wire- GND (temp sensor edge pins)
• Green wire- 1-wire data (temp sensor middle pins)

• sudo apt-get install digitemp
• sudo digitemp_DS9097 -s /dev/USB0 -w

• waterproof:
  • white=data; black=gnd; red=V
  • white → solid color extension
  • red+black → halfcolored extension
• barebone:
  • middle leg = data → solid color extension
  • edge legs → halfcolored extension