temp sensors and mrtg

Temperature monitoring using openbsd's sensor framework and mrtg.

1. Locate sensors on main board:

   $ dmesg | grep lm
   lm0 at isa0 port 0x290/8: LM79

2. Locate number of CPU temperature sensor:

   $ sysctl hw.sensors | grep temp
   hw.sensors.7=lm0, Temp1, temp, 36.00 degC / 96.80 degF

3. Write a simple script for passing temperature to mrtg:

   #!/bin/sh
   sysctl hw.sensors.7 | awk '{ print $4 }'
   sysctl hw.sensors.7 | awk '{ print $4 }'

4. Add the following lines to your mrtg config:

   Target[Temp1]: `/root/temp.sh`
   MaxBytes[Temp1]: 70
   Options[Temp1]: gauge, noinfo, nopercent
   YLegend[Temp1]: Celsius
   LegendI[Temp1]: Temp
   LegendO[Temp1]: Temp
   Title[Temp1]: CPU temp
   ShortLegend[Temp1]: C
   PageTop[Temp1]: <h1>CPU temp</h1>

5. Have fun!

asus wl-500g premium

i got one wl-500g router for my home:

• 1 wan ethernet
• 4 lan ethernet
• 2 usb
• wi-fi

here is uname string:

Linux 1 2.4.20 #46 Thu May 25 22:40:57 MSD 2006 mips unknown

some of cpuinfo:

system type : Broadcom BCM947XX
cpu model : BCM3302 V0.6
BogoMIPS : 262.96
wait instruction : no
microsecond timers : yes
tlb_entries : 32

many nice features of this router can be used in custom firmware.

palm z22

I was bought new toy: Palm Zire 22. It is a Samsung 200MHz ARM processor based PDA with 32MB RAM (20MB accessible) and color 160×160 touchscreen display. Its weight is only 96g.

Nice PDA for typically tasks of most users.