【CHICHI ETUTOR@ARM/MIPS/PPC】TEMPERATURE MOnitoring _ SHT20 _ HWMON

1. Introduction : Adding temperature monitoring function into boards with SHT20 humidity and temperature sensor.

2. SHT20 : Datasheet

3. SHT20 modules:  (from CYESS)

4.  SHT20 drivers :  compile it to SHT20.ko (modified the original one and could be loaded as a HWMON) 

 Download : sht20_hwmon.c

5. Run in filesystem and  monitoring the temperature : 

//load the driver

root@ubuntu:/home/lawrence# insmod  sht20.ko 

//check if the temperature can be read

root@ubuntu:/home/lawrence# sensors

sht20-i2c-1-40

Adapter: s3c2410-i2c

temp1:         +26.10 C  

6. Graphic monitoring in ubuntu:

root@ubuntu:/home/lawrence# sudo apt-get install hardinfo   , show the temperature in ubuntu "system profiler and benchmark"