I've made my own library for this sensor on Ruby. It's a stand-alone library, it doesn't need any other gems to work. The code is available here: bme280.rb: https://gist.github.com/jvalrog/c515302 ... 2989ab1df8 i2cdev.rb: https://gist.github.com/jvalrog/1f8a730 ... 4af7df1193 [updated with source code] [updated scripts with BSD licenses]