18-07-2015, 14:43
I've just been looking into these and noticed this in the ebay description in the top one:
Since the bottom one is 3.3v only it might be a good idea to give bottom a miss.
Quote:Such a lovely chip - so we spun up a breakout board that includes the Filtered version (the white bit of plastic which is a PTFE filter to keep the sensor clean), a 3.3V regulator and I2C level shifting circuitry. This lets you use it safely with any kind of microcontroller with 3.3V-5V power or logic
Since the bottom one is 3.3v only it might be a good idea to give bottom a miss.