Differences

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--- doc:appunti:hardware:raspberrypi_air [2017/10/09 12:49] – niccolo
+++ doc:appunti:hardware:raspberrypi_air [2020/08/14 10:17] (current) – [Rapsberry Pi Air Quality Station] niccolo
@@ Line 1: / Line 1: @@
-====== Rapsberry Pi Air Quality Station ======
+====== Raspberry Pi Air Quality Station ======
 This is my second approach to the **[[wp>Internet of things]]**, this time I built a **weather station** to be installed on the balcony. The first one, which was based also on the [[wp>Raspberry Pi]], was a [[raspberrypi_thermostat|programmable thermostat]].
@@ Line 81: / Line 81: @@
 Edit **/etc/nginx/sites-available/default** to enable PHP into the Nginx web server, then reload Nginx.
 ===== DS3231 RTC Clock =====
@@ Line 94: / Line 93: @@
 ===== Python Libraries =====
-The **Adafruit library for the GPIO** lines is required by the Adafruit BME280 library to access I2C bus:
+The **Adafruit library for the GPIO** lines is required by the Adafruit BME280 library to access I2C bus. It is advisable to install also some packages **from the Raspbian distro**, otherwise the python setup will try to download and install a local version:
+<code>
+apt-get install python-dev python-setuptools python-spidev
+</code>
+The Adafruit Python library is installed from the Git repository:
 <code>
@@ Line 103: / Line 108: @@
 </code>
+The setup procedure will download and install also the **Adafruit_PureIO** library. Everything will be installed into the **/usr/local/lib/python2.7/dist-packages/** directory.
 ===== Serial Line =====
@@ Line 255: / Line 261: @@
 <code>
-apt-get install build-essential python-dev python-smbus git
+apt-get install git build-essential python-dev python-smbus python-setuptools python-spidev
 cd /usr/local/src/
 git clone https://github.com/adafruit/Adafruit_Python_GPIO.git
@@ Line 464: / Line 470: @@
 ==== Export to DXF ====
-In OpenSCAD we use the menu //Design// -> //Compile and Render (CGAL)//. If the object is only bi-dimensional it will be rendered with a red outline and cyan filling. Only in this case we will be able to //File// -> //Export// -> //Export as DXF...//.
+In OpenSCAD we use the menu //Design// -> //Render//. If the object is only bi-dimensional it will be rendered with a red outline and cyan filling. Only in this case we will be able to //File// -> //Export// -> //Export as DXF...//.
 ==== Using Inkscape to add writings, logos and to layout the pieces ====