Copyright (c) 2018 Paul van Haastrecht [email protected]

As part of a larger project I am looking at analyzing and understanding the air quality. The aim of this project was to better understand the kind of gas-types that are in the air.

I have ported the library to CPP on a Raspberry PI running Raspbian Jessie release an PI-OS (Buster). It has been adjusted and extended for stable working.

Make your self superuser : sudo bash 3.1 BCM2835 library Install latest from BCM2835 from : http://www.airspayce.com/mikem/bcm2835/

1. wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.56.tar.gz
2. tar -zxf bcm2835-1.56.tar.gz // 1.56 was version number at the time of writing
3. cd bcm2835-1.56
4. ./configure
5. sudo make check
6. sudo make install

In order for this software to run you should NOT enable i2C in raspi-config to load the kernel drivers. It works directly on the hardware, but you’ll have to run program as root.

twowire library Obtain the latest version from : https://github.com/paulvha/twowire

1. download the zip-file (clone or download / download zip-file) in the wanted directory
2. unzip twowire-master.zip (*1)
3. cd twowire-master
4. make install

*1) if you do not have unzip : sudo apt-get install zip unzip

BME280 software Obtain the latest version from : https://github.com/paulvha/bme280

1. Download the zip-file (clone or download / download zip-file) in the wanted directory
2. unzip bme280-master.zip (*1)
3. cd bme280-master
4. create the executable : make
5. To run you have to be as sudo ./bme280 -h ….

(detailed description of the many options in bme280.odt in the documents directory)

• initial release

• fix compile error on Pi-OS (Buster)