Full installation instructions: Difference between revisions

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[[Install on raspberry]] first section (prerequisites).
[[Install on raspberry]] first section (prerequisites).
===Opencv 3.4===
It should be OK just to install libopencv-dev - in December 2020 this installs version 3.2.0
sudo apt install libopencv-dev
To find the installed version of OpenCV try
pkg-config --modversion opencv
To install newer OpenCV version 3.4  (as of Jan 2020 it is version 3.4.9)
cd
mkdir -p git
cd git
# this method will install version 4.2 - that is not fully compatible (jan 2020)
# git clone https://github.com/opencv/opencv.git
# git clone https://github.com/opencv/opencv_contrib.git
# use this to get a version compatible with opencv 3.4
# get source (jan 2020)
wget -O opencv-3.4.zip https://github.com/Itseez/opencv/archive/3.4.zip
unzip opencv-3.4.zip
wget -O opencv_contrib-3.4.zip https://github.com/Itseez/opencv_contrib/archive/3.4.zip
unzip opencv_contrib-3.4.zip
# compile the lot, but ommit python3 support, as the compile will fail (as of jan 2020)
cd opencv
mkdir build
cd build
# create makefiles, also for all modules in the opencv_contrib (e.g. ArUco code detect)
# cmake -D CMAKE_BUILD_TYPE=RELEASE -D BUILD_opencv_python3=OFF -D OPENCV_EXTRA_MODULES_PATH=~/git/opencv_contrib/modules ..
cmake -D CMAKE_BUILD_TYPE=RELEASE -D BUILD_opencv_python3=OFF -D OPENCV_EXTRA_MODULES_PATH=~/git/opencv_contrib-3.4/modules ..
# inspect printout to see if needed features are enabled
# use -j2 option not to overload or overheat the processor (j2 means use 2 cores only)
# this probably takes more than an hour.
# if the compilation crashes about halfway or so, it is probably due to lack of memory
#    then just start the compile again, and it is likely to continue (at least for a while)
make -j2
# install into /usr/local
sudo make install
# load environment settings
sudo ldconfig


===Raspicam===
===Raspicam===
NB! this should not be needed


A rather short raspberry pi camera API is available from https://www.uco.es/investiga/grupos/ava/node/40.
A rather short raspberry pi camera API is available from https://www.uco.es/investiga/grupos/ava/node/40.
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or get the file from sourceforge with no GUI, with:
or get the file from sourceforge with no GUI, with:


  wget --no-check-certificate -O raspicam-0.1.6.zip https://downloads.sourceforge.net/project/raspicam/raspicam-0.1.6.zip?r=https%3A%2F%2Fsourceforge.net%2Fprojects%2Fraspicam%2F%3Fsource%3Dtyp_redirect&ts=1486483484&use_mirror=netix
cd ~/Downloads
 
  wget --no-check-certificate -O raspicam-0.1.9.zip https://downloads.sourceforge.net/project/raspicam/raspicam-0.1.9.zip?r=https%3A%2F%2Fsourceforge.net%2Fprojects%2Fraspicam%2F%3Fsource%3Dtyp_redirect&ts=1486483484&use_mirror=netix
or part of mission files on SVN (version 0.1.6)


Once fetched and available on the raspberry, then
Once fetched and available on the raspberry, then
Unpack and install:
Unpack and install:
  unzip raspicam-0.1.6.zip
  unzip raspicam-0.1.9.zip
  cd raspicam-0.1.6
  cd raspicam-0.1.9
  mkdir build
  mkdir build
  cd build
  cd build
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(needs a re-logon to be activated, or repeat on the command line)
(needs a re-logon to be activated, or repeat on the command line)
===Userland-master===
To be able to install mobotware (not used pt on ROBOBOT)
Follow the guide under REGBOT for userland-master install - [[Install on raspberry]]


===DNSMASQ===
===DNSMASQ===
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===Sound===
===Sound===


To use the sound system install
====festival====


sudo apt install espeak
Easy understandable voice, but takes time to generate
sudo apt-get install sox libsox-fmt-all
and require two intermediate files


The first speaks english using a command like
sudo apt install festival
echo "The brown fox jumps over lazy dog" > aaa.txt
text2wave aaa.txt -o aaa.wav
aplay aaa.wav


espeak -s120 -ven+f3 -a30 "This robot speaks English with a female voice and amplitude 30, at speed 120."
====Music files====


Code for other languages can be found at http://espeak.sourceforge.net/languages.html
This part works


The second line allows to play sound files, like
Play sound files, like


sudo apt-get install sox libsox-fmt-all
  play -v0.1 music.mp3
  play -v0.1 music.mp3


This line plays the a mp3 file with volume reduced by a factor 0.1.
This line plays an mp3 file with volume reduced by a factor 0.1.
The at startup the blue button on the gamepad playes the file in /home/local/Music/music.mp3.<br>
The at startup the blue button on the gamepad plays the file in /home/local/Music/music.mp3.<br>
This is a symbolic link to some real music (Radetzky marsch in this case):
This is a symbolic link to some real music (Radetzky Marsch in this case):


  ls ~/Music
  ls ~/Music
Line 110: Line 150:
  ln -s radetzky-marsch_Schloss-Schoenbrunn-Konzerte_Wien_full-length.mp3 music.mp3
  ln -s radetzky-marsch_Schloss-Schoenbrunn-Konzerte_Wien_full-length.mp3 music.mp3


====Sound level====
===Sound level===


On a Raspberry pi version 3+ (not tested on other versions)
On a Raspberry pi version 3+ (not tested on other versions)
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  amixer set PCM 100% unmute
  amixer set PCM 100% unmute


====Regbot GUI====
===Regbot GUI===


To run the regbot gui on the raspberry the following package is needed
To run the regbot gui on the raspberry the following package is needed


sudo apt get install python-pyqtgraph
Additional python packages used
 
To start the GUI


cd ~/regbot/qtgui
* python-pyqtgraph
python regbot.py
* python-qt4-gl
* python-serial
* python-scipy


Connect to network localhost or kill the bridge and connect directly to "/dev/ttyACM0" (not com5 as is the default serial connection).
sudo apt install python-pyqtgraph python-qt4-gl python-serial python-scipy


=== ROBOBOT bridge ===


This software connects and combines access to REGBOT, gamepad and the small o-led display.
=====* no python-pyqtgraph =====


Get the software - if not there already.
On my 14.04 32 bit ubuntu the python-pyqtgraph package was not found using apt-get, so I


svn checkout svn://repos.gbar.dtu.dk/jcan/regbot/robobot_bridge robobot_bridge
downloaded from http://www.pyqtgraph.org/
the debian package ''python-pyqtgraph_0.9.10-1_all.deb'' and installed using:


To update - if there is a newer version
sudo dpkg -i python-pyqtgraph_0.9.10-1_all.deb


  cd ~/robobot_bridge
  sudo apt install python-pyqtgraph
svn up


Go to the build directory to build. "make" and "sudo make install" will maybe do.
To start the GUI


  cd ~/robobot_bridge
  cd ~/regbot/qtgui
  mkdir -p build
  python regbot.py
cd build
cmake ..
make
sudo make install


To make the bridge start at reboot, then add
Connect to network localhost or kill the bridge and connect directly to "/dev/ttyACM0" (not com5 as is the default serial connection).
 
sudo nano /etc/rc.local
 
add the line just before "exit 0", or everything if empty (make rc.local executable - probably is)
 
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
# Print the IP address
_IP=$(hostname -I) || true
if [ "$_IP" ]; then
  printf "My IP address is %s\n" "$_IP"
fi
# this line is needed if on DTU internal network do get decent date and time
# as this channel otherwise is blocked
htpdate -q www.linux.org www.freebsd.org
# start bridge
cd /home/local/robobot_bridge/build && ./robobot_bridge -a &
exit 0
 
The bridge may be running already, to test use pgrep
 
pgrep bridge
 
If a process number is shown, then it is running.
To stop the bridge (if not needed or changed)
 
sudo pkill bridge
 
You may then run the bridge from the console
 
cd ~/robobot_bridge/build
sudo ./robobot_bridge
 
It will then show status on the console.
 
To list the message database, then press 's' and return. For full functionality see help (h) and "help".
 
bridge >> s
Regbot bridge: regbot OK=1, Joy OK=1, Oled OK=1, socket=1 (port 24001 on thit), clients=0
#recorded 7 items:
  item 0 is  servo, upds=  0, dt=0.000s, valid=0, time=1.023s ''
                            Servo control for robot 'servo n p' n:servo, p:position.
  item 1 is    pse, upds=5077, dt=0.026s, valid=1, time=135.344s '0.00160638 -1.66499e-05 -0.020729 0.0016065 1.8485'
                            Robot pose [x [m], y [m], h [rad], tilt [rad]].
  item 2 is    hbt, upds=213, dt=0.626s, valid=1, time=135.231s '3142.04 11.8582 0 0 0 289'
                            Heartbeat [time [sec], battery voltage [V].
  item 3 is    joy, upds=  6, dt=0.000s, valid=1, time=1.101s '1 0 8 11 0 0 -32767 0 0 -32767 0 0 0 0 0 0 0 0 0 0 0 0 0'
                            0 Joystick position, running, manual override, Axis count, Button count, A1, A2 ... An, B1, B2 ... Bn
  item 4 is    rc=, upds=  0, dt=0.000s, valid=0, time=1.025s ''
                            Remote control for robot 'rc=m v t'  m:manual override, v:velocity, t:turn velocity.
  item 5 is      #, upds=  0, dt=0.000s, valid=0, time=2.026s ''
                          (no description)
  item 6 is <alive, upds=133, dt=1.002s, valid=1, time=135.192s 'last="0.00028"/>'
                          (no description)
UServerPort::printStatus: running=1, clientsCnt=0, activeCnt=0, loops=0
 
bridge >> h
Bridge between a Regbot robot and joystick and socket clients
Runs on Linux PC and raspberry (preferably in rc.local - runs here an oled display too if available).
After start console has a cmd. line with following commands:
    q: quit
    s: status of data items etc
    h: this help
    help: help for the bridge
Longer lines are send to handler as message.
 
bridge >> help
UBridge::responder: key=help get responder=3
# Robobot_bridge help:
# Commands are all single line text staring with a keyword
#    (up to 6 characters) followed by text or numbers:
# Main topics:
#    robot      Sends all rest of the line to the robot, see 'robot help' for options
#    bridge      See 'bridge help' for options
#    oled L xxx  Prints xxx (up to 20 chars) on line L (2..7) on oled
#    client      See 'client help' for options
#    q          quit
#    h          Console help
#    help        This help
# All lines starting with '#' are assumed to be comments
# All commands are stored as a data item with keyword as ID
# All data items has reserved subcommands, see:
#    item h      Help for data item 'item'
bridge >>
 
===ROBOBOT mission demo C++===
 
This is an example software in C++ to access both raspberry camera and REGBOT, and with an example mission controlled from the raspberry.
 
Get the ROBOBOT software from the svn repository:
 
svn checkout svn://repos.gbar.dtu.dk/jcan/regbot/mission mission
 
or just update if there already
 
svn up
 
To be able to compile the demo software CMAKE needs also to use the user installed library (raspicam installed above),
so add the following line to ~/.bashrc:
 
export CMAKE_PREFIX_PATH=/usr/local/lib
 
Then build Makefiles and compile:
 
cd ~/mission
mkdir -p build
cd build
cmake ..
make
 
Then test-run the application:
 
./mission
 
It should print that the camera is open and connected to the robot (bidge).
 
====Software structure====
 
The software is structures as shown in figure 1 below.
 
[[file:mission-software.png | 500px]]
 
Figure 1. The example mission software intended as basis for full mission control. In the main.cpp file, three objects are created: bridge (UBridge reg(127.0.0.1)), camera (UCamera cam()) and mission (UMission mission(&reg, &cam)). The bridge handles communication and stores all data from the robot and the gamepad. The camera can capture images and image processing is intended here. The mission object is intended for splitting long missions into mission snippets that the REGBOT can execute.
 
The mission class has access to robot data and the camera at all times using the pointers "bot->" and "cam->". e.g. the heading (relative to the start position) and if the yellow gamepad button is pressed, can be fetched as:
 
float heading = bot->pose->h;
bool yellowButton = bot->joy->button[3];
 
Details about the data code may be found in the upose.cpp, uinfo.cpp, ujoy.cpp, umotor.cpp ... files.
 
The sound system can be used for debugging, e.g. add a C++ line like:
 
system("espeak \"bettina reached point 3\" -ven+f4 -a30 -s130");
 
This line makes the robot say "bettina reached point 3" the parameters "-a30" turns amplitude down to 30%, "-ven+f4" sets language to english with female voice 4 and "-s130" makes the speech a little slower and easier to understand.
It requires that espeak is installed (sudo apt install espeak).
 
===USB as SOCKET for REGBOT client===
 
This is not compatible with use of ROBOBOT_BRIDGE, so '''don't use it''' here
 
To use the REGBOT client through (not on) the raspberry pi, the serial connection /dev/ttyACM0 on the raspberry can be converted to a network port by SOCAT. So install:
 
sudo apt install socat
 
Add the following line to /etc/rc.local
 
socat TCP-LISTEN:24001,fork,reuseaddr FILE:/dev/ttyACM0,raw,echo=0 &
 
This creates a TCP socket server, listening to port 24001 and piping /dev/ttyACM0 to the socket (with no local echo). This only takes the data from the /dev/ttyACM0 when a client is connected to the socket.


Works after a reboot, or the same line on the command prompt.
== File sharing for development ==


This is good for configuring the REGBOT (in REGBOT client connect wifi to IP of robot, e.g. 192.168.0.2).
Mirror the local disk on the Raspberry to a PC, make all file editing here, and then on a terminal connection to the robot to compile the software.


===Share files from windows===
===Share files from windows===
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===Share files on Linux===
===Share files on Linux===


On the Linux PC use sshfs for sharing.
On a Linux PC use sshfs for sharing.
Make an empty directory for the mapped disk, and then mount
Make an empty directory for the mapped disk, and then mount


Latest revision as of 13:55, 24 December 2020

Back to Robobot


Installation instruction on the raspberry

Install raspberry pi version of Linux on a micro-SD, instructions can be found here:

Install on raspberry first section (prerequisites).

Opencv 3.4

It should be OK just to install libopencv-dev - in December 2020 this installs version 3.2.0 

sudo apt install libopencv-dev

To find the installed version of OpenCV try 

pkg-config --modversion opencv

To install newer OpenCV version 3.4 (as of Jan 2020 it is version 3.4.9) 

cd
mkdir -p git
cd git
# this method will install version 4.2 - that is not fully compatible (jan 2020)
# git clone https://github.com/opencv/opencv.git
# git clone https://github.com/opencv/opencv_contrib.git
# use this to get a version compatible with opencv 3.4
# get source (jan 2020)
wget -O opencv-3.4.zip https://github.com/Itseez/opencv/archive/3.4.zip
unzip opencv-3.4.zip
wget -O opencv_contrib-3.4.zip https://github.com/Itseez/opencv_contrib/archive/3.4.zip
unzip opencv_contrib-3.4.zip
# compile the lot, but ommit python3 support, as the compile will fail (as of jan 2020)
cd opencv
mkdir build
cd build
# create makefiles, also for all modules in the opencv_contrib (e.g. ArUco code detect)
# cmake -D CMAKE_BUILD_TYPE=RELEASE -D BUILD_opencv_python3=OFF -D OPENCV_EXTRA_MODULES_PATH=~/git/opencv_contrib/modules ..
cmake -D CMAKE_BUILD_TYPE=RELEASE -D BUILD_opencv_python3=OFF -D OPENCV_EXTRA_MODULES_PATH=~/git/opencv_contrib-3.4/modules ..
# inspect printout to see if needed features are enabled
# use -j2 option not to overload or overheat the processor (j2 means use 2 cores only)
# this probably takes more than an hour.
# if the compilation crashes about halfway or so, it is probably due to lack of memory
#    then just start the compile again, and it is likely to continue (at least for a while)
make -j2
# install into /usr/local
sudo make install
# load environment settings
sudo ldconfig

Raspicam

NB! this should not be needed

A rather short raspberry pi camera API is available from https://www.uco.es/investiga/grupos/ava/node/40. And can be downloaded from https://sourceforge.net/projects/raspicam/files/,

or get the file from sourceforge with no GUI, with: 

cd ~/Downloads
wget --no-check-certificate -O raspicam-0.1.9.zip https://downloads.sourceforge.net/project/raspicam/raspicam-0.1.9.zip?r=https%3A%2F%2Fsourceforge.net%2Fprojects%2Fraspicam%2F%3Fsource%3Dtyp_redirect&ts=1486483484&use_mirror=netix

Once fetched and available on the raspberry, then Unpack and install: 

unzip raspicam-0.1.9.zip
cd raspicam-0.1.9
mkdir build
cd build
cmake ..
make
sudo make install
sudo ldconfig

The library is installed in /usr/local, and therefore to make cmake find it the path needs to be added to startup configuration, in file ~/.bashrc 

nano ~/.bashrc
add at the end:
export CMAKE_PREFIX_PATH=/usr/local/lib

(needs a re-logon to be activated, or repeat on the command line)

DNSMASQ

To enable the ROBOBOT to be connected directly to a PC, then it is easier if the ROBOBOT provides an IP for the PC.

Install DNSMASQ 

sudo apt install dnsmasq

allow dnsmasq to provide IP to pear-to-pear networks Edit the /etc/dnsmasq.conf (nano is a small text editor, fine for editing configuration files owned by Linux root) 

sudo nano /etc/dnsmasq.conf
find and change/add the following line (a bit down, eg to serch use: ctrl-W dhcp-range)
dhcp-range=192.168.17.100,192.168.17.150,12h

To work, the eth0 must have an IP, if noone provides one, change /etc/dhcpcd.conf (dhcp client deamon) to have a default IP, if no DHCP server is available

Edit of /etc/dhcpcd.conf to have a fall back behaviour for eth0 and eth1. 

sudo nano /etc/dhcpcd.conf
Add the following lines at the end (uncomment and modify):
# define static profile
profile static_eth0
static ip_address=192.168.17.1/24
# static routers=192.168.0.1
# static domain_name_servers=192.168.0.1

# fallback to static profile on eth0
interface eth0
fallback static_eth0

This will also give a default IP for an eventual second network (usb-to-cable) if needed

Now, after a reboot, you should be able to connect a PC directly with at network cable to a PC, and the PC should get an IP from the raspberry, so now 

ssh local@192.168.17.1

Sound

festival

Easy understandable voice, but takes time to generate and require two intermediate files 

sudo apt install festival
echo "The brown fox jumps over lazy dog" > aaa.txt
text2wave aaa.txt -o aaa.wav
aplay aaa.wav

Music files

This part works

Play sound files, like 

sudo apt-get install sox libsox-fmt-all
play -v0.1 music.mp3

This line plays an mp3 file with volume reduced by a factor 0.1. The at startup the blue button on the gamepad plays the file in /home/local/Music/music.mp3.
This is a symbolic link to some real music (Radetzky Marsch in this case): 

ls ~/Music
   radetzky-marsch_Schloss-Schoenbrunn-Konzerte_Wien_full-length.mp3
cd ~/Music
ln -s radetzky-marsch_Schloss-Schoenbrunn-Konzerte_Wien_full-length.mp3 music.mp3

Sound level

On a Raspberry pi version 3+ (not tested on other versions) 

$ amixer
 Simple mixer control 'PCM',0
   Capabilities: pvolume pvolume-joined pswitch pswitch-joined
   Playback channels: Mono
   Limits: Playback -10239 - 400
   Mono: Playback 400 [100%] [4.00dB] [on]

An thus:
Setting the sound level can be done by: 

amixer set PCM 0dB unmute

Setting to maximum (100%) is about the same as setting 4dB (may be too much for amplifier). 

amixer set PCM 100% unmute

Regbot GUI

To run the regbot gui on the raspberry the following package is needed

Additional python packages used

  • python-pyqtgraph
  • python-qt4-gl
  • python-serial
  • python-scipy
sudo apt install python-pyqtgraph python-qt4-gl python-serial python-scipy


* no python-pyqtgraph

On my 14.04 32 bit ubuntu the python-pyqtgraph package was not found using apt-get, so I

downloaded from http://www.pyqtgraph.org/ the debian package python-pyqtgraph_0.9.10-1_all.deb and installed using: 

sudo dpkg -i python-pyqtgraph_0.9.10-1_all.deb

sudo apt install python-pyqtgraph

To start the GUI 

cd ~/regbot/qtgui
python regbot.py

Connect to network localhost or kill the bridge and connect directly to "/dev/ttyACM0" (not com5 as is the default serial connection).

File sharing for development

Mirror the local disk on the Raspberry to a PC, make all file editing here, and then on a terminal connection to the robot to compile the software.

Share files from windows

On the windows computer install "winscp" and use it to copy files to and from the raspberry disk as needed.

There are other methods too.

Share files on Linux

On a Linux PC use sshfs for sharing. Make an empty directory for the mapped disk, and then mount 

mkdir robobotdisk
sshfs local@192.168.0.2: robobotdisk

Unmount with 

fusermount -u robobotdisk

Or use "sudo unmount robobotdisk"

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