2019-12-02 04:24:25 +01:00
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.. _install:
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============
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Installation
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============
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2019-12-06 19:24:03 +01:00
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.. _raspbian_install:
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2019-12-02 04:24:25 +01:00
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2019-12-06 19:24:03 +01:00
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Python Installation of MotorKit Library
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=======================================
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https://learn.adafruit.com/adafruit-dc-and-stepper-motor-hat-for-raspberry-pi/installing-software
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2019-12-02 04:24:25 +01:00
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2019-12-06 19:42:02 +01:00
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Adafruit Ultimate GPS HAT Installation
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======================================
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2019-12-06 19:24:03 +01:00
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https://learn.adafruit.com/adafruit-ultimate-gps-hat-for-raspberry-pi?view=all
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2019-12-02 04:24:25 +01:00
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2019-12-06 19:42:02 +01:00
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MorphoCut Installation
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======================
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https://morphocut.readthedocs.io/en/stable/installation.html
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RPi Cam Web Interface Installation
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==================================
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https://elinux.org/RPi-Cam-Web-Interface
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2019-12-02 04:24:25 +01:00
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Raspbian installation
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=====================
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If you are using the `Raspbian`_ distro, it is best to install picamera using
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the system's package manager: apt. This will ensure that picamera is easy to
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keep up to date, and easy to remove should you wish to do so. It will also make
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picamera available for all users on the system. To install picamera using apt
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simply::
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$ sudo apt-get update
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$ sudo apt-get install python-picamera python3-picamera
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To upgrade your installation when new releases are made you can simply use
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apt's normal upgrade procedure::
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$ sudo apt-get update
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$ sudo apt-get upgrade
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If you ever need to remove your installation::
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$ sudo apt-get remove python-picamera python3-picamera
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.. note::
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If you are using a recent installation of Raspbian, you may find that the
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python-picamera package is already installed (it is included by default
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in recent versions).
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.. _Raspbian: http://www.raspbian.org/
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.. _non_raspbian_install:
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Alternate distro installation
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=============================
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On distributions other than Raspbian, it is probably simplest to install system
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wide using Python's ``pip`` tool::
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$ sudo pip install picamera
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If you wish to use the classes in the :mod:`picamera.array` module then specify
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the "array" option which will pull in numpy as a dependency (be warned that
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building numpy takes a *long* time on a Pi)::
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$ sudo pip install "picamera[array]"
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To upgrade your installation when new releases are made::
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$ sudo pip install -U picamera
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If you ever need to remove your installation::
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$ sudo pip uninstall picamera
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.. _firmware:
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Firmware upgrades
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=================
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The behaviour of the Pi's camera module is dictated by the Pi's firmware. Over
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time, considerable work has gone into fixing bugs and extending the
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functionality of the Pi's camera module through new firmware releases. Whilst
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the picamera library attempts to maintain backward compatibility with older Pi
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firmwares, it is only tested against the latest firmware at the time of
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release, and not all functionality may be available if you are running an older
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firmware. As an example, the :attr:`~PiCamera.annotate_text` attribute relies
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on a recent firmware; older firmwares lacked the functionality.
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You can determine the revision of your current firmware with the following
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command::
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$ uname -a
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The firmware revision is the number after the ``#``::
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Linux kermit 3.12.26+ #707 PREEMPT Sat Aug 30 17:39:19 BST 2014 armv6l GNU/Linux
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/
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/
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firmware revision --+
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On Raspbian, the standard upgrade procedure should keep your firmware
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up to date::
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$ sudo apt-get update
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$ sudo apt-get upgrade
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.. warning::
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Previously, these documents have suggested using the ``rpi-update`` utility
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to update the Pi's firmware; this is now discouraged. If you have
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previously used the ``rpi-update`` utility to update your firmware, you can
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switch back to using ``apt`` to manage it with the following commands::
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$ sudo apt-get update
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$ sudo apt-get install --reinstall libraspberrypi0 libraspberrypi-{bin,dev,doc} raspberrypi-bootloader
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$ sudo rm /boot/.firmware_revision
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You will need to reboot after doing so.
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.. note::
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Please note that the `PiTFT`_ screen (and similar GPIO-driven screens)
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requires a custom firmware for operation. This firmware lags behind the
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official firmware and at the time of writing lacks several features
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including long exposures and text overlays.
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.. _PiTFT: http://www.adafruit.com/product/1601
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.. _dev_install:
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Development installation
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========================
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If you wish to develop picamera itself, it is easiest to obtain the source by
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cloning the GitHub repository and then use the “develop” target of the Makefile
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which will install the package as a link to the cloned repository allowing
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in-place development (it also builds a tags file for use with vim/emacs with
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Exuberant’s ctags utility). The following example demonstrates this method
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within a virtual Python environment::
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$ sudo apt-get install lsb-release build-essential git git-core \
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exuberant-ctags python-virtualenv python3-virtualenv python-dev \
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python3-dev libjpeg8-dev zlib1g-dev libav-tools \
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texlive-latex-recommended texlive-latex-extra texlive-fonts-recommended
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$ virtualenv -p /usr/bin/python3 sandbox
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$ source sandbox/bin/activate
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(sandbox) $ git clone https://github.com/waveform80/picamera.git
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(sandbox) $ cd picamera
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(sandbox) $ make develop
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To pull the latest changes from git into your clone and update your
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installation::
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$ source sandbox/bin/activate
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(sandbox) $ cd picamera
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(sandbox) $ git pull
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(sandbox) $ make develop
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To remove your installation blow away the sandbox and the clone::
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$ rm -fr ~/sandbox/ ~/picamera/
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For anybody wishing to hack on the project, I would strongly recommend reading
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through the :class:`PiCamera` class' source, to get a handle on using the
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``mmalobj`` layer. This is a layer introduced in picamera 1.11 to ease the
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usage of ``libmmal`` (the underlying library that picamera, ``raspistill``,
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and ``raspivid`` all rely upon).
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Beneath ``mmalobj`` is a :mod:`ctypes` translation of the ``libmmal`` headers
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but my hope is that most developers will never need to deal with this
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directly (thus, a working knowledge of C is hopefully no longer necessary to
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hack on picamera).
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Various classes for specialized applications also exist
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(:class:`PiCameraCircularIO`, :class:`~array.PiBayerArray`, etc.)
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Even if you don’t feel up to hacking on the code, I’d love to hear suggestions
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from people of what you’d like the API to look like (even if the code itself
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isn’t particularly pythonic, the interface should be)!
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.. _test_suite:
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Test suite
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==========
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If you wish to run the picamera test suite, follow the instructions in
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:ref:`dev_install` above and then make the "test" target within the sandbox::
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$ source sandbox/bin/activate
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(sandbox) $ cd picamera
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(sandbox) $ make test
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.. warning::
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The test suite takes a *very* long time to execute (at least 1 hour on an
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overclocked Pi 3). Depending on configuration, it can also lockup the
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camera requiring a reboot to reset, so ensure you are familiar with SSH or
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using alternate TTYs to access a command line in the event you need to
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reboot.
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