User Manual

Python and CircuitPython

It's easy to use the LPS35HW sensor with Python and CircuitPython, and the Adafruit CircuitPython

LPS35HW (https://adafru.it/ERZ) module. This module allows you to easily write Python code that reads the pressure

and temperature from the sensor.

You can use this sensor with any CircuitPython microcontroller board or with a computer that has GPIO and Python

thanks to Adafruit_Blinka, our CircuitPython-for-Python compatibility library (https://adafru.it/BSN).

CircuitPython Microcontroller Wiring

First wire up a LPS35HW to your board exactly for an I2C connection as shown on the previous pages for Arduino.

Here's an example of wiring a Feather M4 to the sensor with I2C:

Board 3V to sensor VIN

Board GND to sensor GND

Board SCL to sensor SCK

Board SDA to sensor SDI

Python Computer Wiring

Since there's

dozens

of Linux computers/boards you can use we will show wiring for Raspberry Pi. For other platforms,

please visit the guide for CircuitPython on Linux to see whether your platform is supported (https://adafru.it/BSN).

Here's the Raspberry Pi wired with I2C:

Pi 3V3 to sensor VIN

Pi GND to sensor GND

Pi SCL to sensor SCK

Pi SDA to sensor SDI

CircuitPython Installation of LPS35HW Library

Next you'll need to install the Adafruit CircuitPython LPS35HW (https://adafru.it/ERZ) library on your CircuitPython

board.

First make sure you are running the latest version of Adafruit CircuitPython (https://adafru.it/Amd) for your board.

Next you'll need to install the necessary libraries to use the hardware--carefully follow the steps to find and install these

libraries from Adafruit's CircuitPython library bundle (https://adafru.it/zdx). Our introduction guide has a great page on

how to install the library bundle (https://adafru.it/ABU) for both express and non-express boards.