Full installation instructions
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).
Raspicam
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/?
Unpack and install:
unzip raspicam-0.1.3.zip cd raspicam-0.1.3 mkdir build cd build cmake .. make sudo make install
Userland-master
To be able to install mobotware
Follow the guide under REGBOT for userland-master install - Install on raspberry
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 (for eth0)
dhcp-range=eth0,192.168.0.100,192.168.0.150,12h
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
Add the following lines at the end of /etc/dhcpcd.conf to have a fall back behaviour for eth0 and eth1.
# define static profile profile static_eth0 static ip_address=192.168.0.2/24 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 # define static profile profile static_eth1 static ip_address=192.168.1.2/24 static routers=192.168.1.1 #static domain_name_servers=192.168.0.1 # fallback to static profile on eth1 interface eth1 fallback static_eth1
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@192.168.0.2
should work
ROBOBOT demo C++
This is an examplesoftware 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/robobot robobot
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 robobot cd build cmake .. make
Then testrun the application:
./robobot
It should print that the camera is open, save an image and print some data from the robot (e.g. position).
USB as SOCKET for REGBOT client
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.
This is good for configuring the REGBOT (in REGBOT client connect wifi to IP of robot, e.g. 192.168.0.2).
To share files on all windows computers (without need for administrator) configure a samba share (or follow Simon on http://simonthepiman.com/how_to_setup_windows_file_server.php)
First install samba
sudo apt install samba samba-common-bin
then edit /etc/samba/smb.conf
sudo nano /etc/samba/smb.conf
comment out all lines under the headlines:
[homes] [printers] [print$] [cdrom]
Add the following section at the end:
[robobot] comment = Raspberry Pi user LOCAL home directory path = /home/local writeable = Yes only guest = Yes create mask = 0777 directory mask = 0777 browseable = Yes public = yes
Add "local" and "pi" as a samba user (and set password, for user pi it should be "raspberry"):
sudo smbpasswd -a local sudo smbpasswd -a pi
Reboot to implement
sudo reboot
Windows map drive
On the windows computer, connect a network cable directly between the robobot and the computer, e.g. using a USB to Ethernet converter. Robobot should now be available with network address 192.168.0.2 (you could try a ping if in doubt).
In the file browser:
- select "map network drive" (menu tools, or right-click on "my computer").
- select drive R: (for robobot) - or another if R is used already.
- in the folder field write: \\192.168.0.2\robobot, and select "Connect using different credentials", then OK.
- Type in username (local or pi) and the appropriate password (and OK).
Now the code and other files can be accessed and manipulated from windows, e.g. using an IDE.
- But the code still needs to be compiled on the raspberry (install and use putty for a ssh terminal access)
On the Linux PC use sshfs for sharing rather than samba. 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"