User Manual

Similarly the LPS33HW is ensconced in a protective gel that protects it from harsh environments. Additionally it is called

out by the manufacturer (ST) in the datasheet as being suitable for applications such as weather station equipment or a

moist, mouth-adjacent activity that we don't encourage. Let's just say it seems well suited for things like sip-and-puff

switches.

Along with not being afraid of getting wet, the LPS35HW and LPS33HW have 24bit pressure data and 16 bit

temperature data, allowing it to deliver pressure readings with +/- 0.1% hPa accuracy. It can measure from 260 to 1260

hPa and is able to withstand pressure up to 20 times their measurement range.

To help you take measurements to your requirements, the sensors also offer an adjustable data rate, as well as a low

pass filter to remove noise from the signal. Finally, the onboard temperature compensation makes sure that your

readings are always good and won't vary as the temperature changes.

We placed these sensors on a breakout board with a 3.3V regulator and level shifting circuitry so it can be used by 3V

or 5V power/logic devices. A small piece of header is also included, so you can solder it in for use with a breadboard.

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