Difference between revisions of "Install Hivetool on the A+ Pi"

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(Created page with "For a system overview and software flow diagrams see the Software page. ==Get the latest operating system image== Raspbian Wheezy is currently used, although others shoul...")
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Revision as of 18:47, 10 January 2015

For a system overview and software flow diagrams see the Software page.

Get the latest operating system image

Raspbian Wheezy is currently used, although others should work.

The latest image available from http://www.raspberrypi.org/downloads is: 2014-09-09-wheezy-raspbian.zip

  1. Download the zipped image (approximately 900 MB)
  2. Calculate the SHA-1 checksum. On Linux, the command line is:
    sha1sum 2014-09-09-wheezy-raspbian.zip
    This will print out a long hex number which should match the "SHA-1 Checksum" line for the SD image you have downloaded
  3. Extract (unzip) the image. On Linux the command line is:
    unzip 2014-09-09-wheezy-raspbian.zip

When unzipped, 2014-09-09-wheezy-raspbian.img is about 3.3 GB.

Copy the image to the SD card

Make SD card on Unix/Linux system

Detailed instructions: http://elinux.org/RPi_Easy_SD_Card_Setup#Flashing_the_SD_Card_using_Linux_.28including_on_a_Pi.21.29

  1. Determine the device for the card reader (/dev/mmcblk0 on my laptop).
  2. Copy the image to the SD card:
    dd bs=4M if=2014-09-09-wheezy-raspbian.img of=/dev/mmcblk0

Make SD card on Windows system

raspberrypi.org recommends using: http://sourceforge.net/projects/win32diskimager/ But be careful. REMOVE any other USB memory devices from your computer. Detailed instructions: http://elinux.org/RPi_Easy_SD_Card_Setup#Flashing_the_SD_Card_using_Windows

Boot Pi, expand file system, set locale, timezone and host name

Access to the Pi's console is needed. A USB keyboard and either a HDMI or composite video monitor can be used. I prefer to use a USB to TTL Serial conversion cable that is connected to pins 4,6,8,10 on P1. The other end is plugged into a USB port on my laptop. A terminal emulator is required(on Linux I use MiniCom, on Microsoft Windows hyperterm or PuTTY can be used.) The advantage of connecting this way is the command lines can be cut from the instructions below and pasted into the terminal.

  1. Boot Pi and login
  2. Expand file system, set locale, timezone and hostname using the Raspberry Pi Software Configuration Tool (raspi-config)
    sudo raspi-config
  3. Reboot the Pi
1 Expand Filesystem              Ensures that all of the SD card s
4 Internationalisation Options   Set up language and regional sett 
I1 Change Locale                 Set up language and regional sett  (See Note 1)
I2 Change Timezone                Set up timezone to match your loc 
8 Advanced Options                Configure advanced settings
A2 Hostname                       Set the visible name for this Pi (See Note 2)

Note 1: down arrow to: [*] en_GB.UTF-8 UTF-8 Press the space bar to uncheck. Down arrow to: [ ] en_US.UTF-8 UTF-8 and press the space bar to check. Press Tab to move to [OK] and press Enter. Set the default locale for the system environment to en_US.UTF-8 UTF-8 and select OK. This will take a few minutes.

Note 2: Set the hostname to what you want to call your hive.

Note 3: When you exit the Raspberry Pi Software Configuration Tool after expanding the file system, it will ask you if you want to reboot. You will need to reboot for the expanded file system to take effect, so reboot now.

Install required packages

Note the obvious:
1. The Pi must be connected to the internet to update or add packages!
 2. Always update before trying to add packages 

sudo apt-get -y update

Note: Running apt-get update does not fix the shellshock bash vulnerability. 
      Test by running: env x='() { :;}; echo vulnerable' bash -c "echo this is a test"
      If it prints "vulnerable", you should also run:
      sudo apt-get -y dist-upgrade
  1. Get gawk, bc for shell scripts, apache for webserver, libusb to read TEMPerHUMs, graphics library for GD::Graph, expat library for XML::Simple, mySQL if desired.
    sudo apt-get -y install gawk bc apache2 libusb-dev libgd-graph-perl libexpat1-dev mysql-server
    Note: You will be prompted for the MySQL root password. Do not forget it. You will need it later.
  2. Now get Graphics for perl.
    sudo cpan GD::Text GD::Graph Date::Format XML::Simple


Install Hivetool programs

  1. Make two directories: /home/hivetool and /home/downloads.
    sudo mkdir /home/hivetool /home/downloads
  2. Get the perl code, the shtml files and the patched pm and copy it to the perl module directory
    cd /home/downloads
    sudo git clone https://github.com/hivetools/perl
    sudo cp perl/axestype.pm /usr/local/share/perl/5.14.2/GD/Graph/axestype.pm
    sudo cp perl/*.pl perl/*.shtml /var/www/
  3. Get the hivetool bash scripts and copy them to their proper directory
    sudo git clone https://github.com/hivetools/bash
    sudo cp bash/*.sh /home/hivetool/
  4. get the crontab file
    sudo git clone https://github.com/hivetools/cron

Done installing hivetool files

Set the ethernet parameters and DNS servers

If you do not intend to open a hole in the firewall to allow public access to the web server, skip this step and let the Pi obtain an IP from the DHCP server in the router. Even if you configure port forwarding in the router (for WAN access to the web server, or to secure shell (SSH) in) a static IP may not be required.

To set a static IP if needed for port forwarding through the firewall.

  1. set static ip for port forwarding
    sudo vi /etc/network/interfaces:
    iface eth0 inet dhcp
    iface eth0 inet static
    address 192.168.254.31
    netmask 255.255.255.0
    gateway 192.168.254.254
  2. Set the dns Servers
    /etc/network/interfaces
    /etc/dhcp/dhclient.conf

Configure mySQL

  1. Running an SQL database locally on the Pi is optional. However, it is necessary to run the latest graphing software.

This configuration was taken from ducky-pond's how to install and optimize mysql on raspberry pi

  1. sudo mv /etc/mysql/my.cnf /etc/mysql/my.cnf.bak
    sudo cp /usr/share/doc/mysql-server-5.5/examples/my-small.cnf /etc/mysql/my.cnf

Configure apache

  1. Set up apache to listen on port 8080 if using port forwarding:
    sudo vi /etc/apache2/ports.conf
    add Listen 8080
  2. Add .pl to AddHandler cgi-script
    sudo vi /etc/apache2/mods-enabled/mime.conf
    uncomment #AddHandler cgi-script .cgi (around line 219) and add .pl so it looks like:
    AddHandler cgi-script .cgi .pl
  3. add Includes and +ExecCGI to Options:
    sudo vi /etc/apache2/sites-enabled/000-default
    In stanza <Directory /var/www/>
    change
    Options Indexes FollowSymLinks MultiViews
    to
    Options Indexes FollowSymLinks MultiViews Includes +ExecCGI
  4. Add index.shtml to DirectoryIndex:
    sudo vi /etc/apache2/mods-enabled/dir.conf
    Change
    DirectoryIndex index.html index.cgi index.pl index.php index.xhtml index.htm
    to
    DirectoryIndex index.html index.cgi index.pl index.php index.xhtml index.htm index.shtml
  5. Copy the include.load module to enable it
    sudo cp /etc/apache2/mods-available/include.load /etc/apache2/mods-enabled/
  6. Restart Apache
sudo apachectl restart   or      sudo/etc/rc4.d/S02apache2 restart

Install the HX711 scale software

  1. Download the software from gitHub
    cd /home/downloads
    sudo git clone https://github.com/ggurov/hx711
  2. Change the GPIO pins in hx711.c from 30 and 31
    cd hx711
    vi hx711.c
  3. Select the proper GPIO pins on lines 13 and 14:
    1. If using P5 on the Model A or B (NOT A+ or B+), change to 28 and 30. This way they are all on one side of P5:
      #define CLOCK_PIN 30
      #define DATA_PIN 28
    2. If using P1, pick two unused GPIO pins such as:
      #define CLOCK_PIN 24
      #define DATA_PIN 23
  4. Compile:
    gcc -o hx711 hx711.c gb_common.o
  5. Copy hx711 command to /usr/local/bin:
    sudo cp hx711 /usr/local/bin

Install the TEMPerHUM software

tempered can be installed with just the binaries (quicker) or from source (you have the source code to fix bugs)

Install binaries

  1. get the binaries and libraries
    cd /home/downloads
    sudo git clone https://github.com/hivetools/tempered_pi
  2. copy the files to their directories
    cd tempered_pi
    sudo cp hid-query tempered /usr/local/bin/
    sudo cp libtempered-util.so libtempered-util.so.0 libtempered.so libtempered.so.0 /usr/lib/arm-linux-gnueabihf/
    sudo cp libhidapi-hidraw.so.0 /usr/local/lib/
    sudo cp tempered-util.h tempered.h /usr/local/include/
  3. run ldconfig (or reboot) to load the new library
    sudo ldconfig
  4. Test by plugging in a TEMPerHUM and running:
    sudo tempered
  5. It should return something like:
    /dev/hidraw1 0: temperature 20.69 °C, relative humidity 46.0%, dew point 8.6 °C

Install from source

Install from source: http://hivetool.net/node/59

Edit the cron table

The scripts that read the sensors, log the data, and send it off site (if enabled) are run periodically by the scheduler, cron. Cron setup can be done from the command line with crontab. For cron setup and examples, see Sample contab entries 

sudo crontab -e

Set or change hostname

If the hostname was not set above using raspi-config, set the hostname:

  1. Set the local host name
    sudo vi /etc/hostname
  2. and edit the local host name here, too:
    sudo vi /etc/hosts
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