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I finished up my first Energia project, a template library for the Bosch BMP085 temperature and pressure sensor. It uses I2C and supports temperature in Celsius and pressure in Pascal. https://github.com/astuder/BMP085-template-library-Energia I connected the GY-80 breakout commonly found on eBay, but it should also work with most other BMP085 breakouts, like the ones from Adafruit or Sparkfun. Note that I had to patch Energia to make 1-byte read work on MSP430G2553 with Rev1.5 LaunchPad. I also had to remove the LED2 jumper, probably due to too weak I2C pull-up. Update: Tested on LaunchPad 1.5 with MSP430G2553, StellarPad Rev A and Arduino R3. Energia requires patches 226 and 235 in twi.c for I2C to work properly on MSP430G2553 https://github.com/energia/Energia/pull/226/files https://github.com/energia/Energia/pull/235/files Updates: - Tested with Energia 0101E0010 with MSP430G2553 and F5529, no more I2C patches needed. - Tested with BMP180 and Software I2C http://forum.43oh.com/topic/3777-energia-library-bosch-bmp085-template-library/?p=44410 - Fixed I2C for Energia 0101E0016 by removing ugly hacks from the past from the library code. Tested only with MSP430G2553