Raspberry Pi Configuration #

In theory your raspberry pi’s should be already configured, if so please do not go through this page. If your pi unfortunately got it’s memory erased, or you were handed one with nothing on it, then read ahead.

Installing the Main Code #

You can install the main code by writing:

To install your main code you will first need to install the git installer, to do this write the following in your pi’s terminal, (following code is for linux):

sudo apt-get install git

once it has finished install, type the following command in the terminal, this will install the repository to your pi:

git clone https://github.com/ocean-perception/mobile_robotics_python

if this does not work, please ask for a member of staff for help.

Chrony Configuration #

Chrony is an implementation of NTP, it allows for the pi’s to synchronize their time even if internet is not connected to one of them. It acts as a daemon in the background. So when setup it should never need to be reconfigured or edited with afterwards.

Server Configuration (Camera system Pi) #

1. Install an editor of your choice (nano, vim, gedit), for example for vim you would write

sudo apt install vim

2. Install chrony with

sudo apt install chrony

3. TBD

Client Configuration (student Raspberry Pi) #

1. Install an editor of your choice (nano, vim, gedit), for example for vim you would write

sudo apt install vim

2. Install chrony with

sudo apt install chrony

4. Find or ask the IP address of the chrony server in the local network (the wifi router network). It should be something like 192.168.0.X, where the last X will change for a number 0-254.
5. Edit chrony configuration, and add the following line at the top of the file

server 192.168.0.X

where X has to be changed for the correct IP. The file is located at /etc/chrony/chrony.conf. To edit it, you will need to use sudo, for example:

sudo vi /etc/chrony/chrony.conf

6. Verify that you can get the updates. First restart chrony with

sudo systemctl restart chrony

and now verify that chrony is using your IP by running the command

chronyc sources