BMP085Logger

Display log of air pressure and temperature using Raspberry PI + Java and BMP085 sensor

Features:

• Jetty based Web UI for showing JFreeChart 2D charts of temperature and pressure
• HSQLDB database for storing temperature and pressure data
• Integration with BMP085 sensor using PI4J library

Required software

• Linux (preferrable Debian Wheezy)
• Java
• Wiring PI library (http://wiringpi.com/download-and-install/) [required by PI4J]

I2C setup on PI

• connect BMP085 sensor
• add "i2c-bcm2708" and "i2c-dev" in /etc/modules
• reboot to get modules loaded
• apt-get install i2c-tools
• run i2cdetect -y 1 (RPI v2) or i2cdetect -y 0 (RPI v1)
• should see 0x77 in i2cdetect output if BMP085 is properly connected

Running service

• export TZ=Europe/Helsinki
• java -cp hsqldb.jar:jcommon-1.0.23.jar:jetty-all-9.0.4.v20130625.jar:jfreechart-1.0.19.jar:pi4j-core.jar:servlet-api-3.1.jar org.noxo.bmp085logger.LoggerServer

Browsing measurements

• hourly: http://aaa.bbb.ccc.ddd:8080/?range=hourly
• daily: http://aaa.bbb.ccc.ddd:8080/