Robobot B

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This page is is for development nodes and user description of the simplified version of Robobot
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Robobot B is a simplified (2024) version of the old Robobot
  
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=Robobot B description=
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=Robobot=
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This section is intended for users.
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[[File:robobot-in-blocks-2024.png | 600px]]
 
[[File:robobot-in-blocks-2024.png | 600px]]
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==Overview==
 
==Overview==
  
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* [[Robobot architecture]] module description
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This section is intended for users.
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* Hardware
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* Electronics
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* [[Robobot architecture | Software overview]] and blocks description.
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* Software on Raspberry
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* [[Robobot software description | Software description]] and examples.
 
* [[Raspberry Pi directory structure for Robobot]]
 
* [[Raspberry Pi directory structure for Robobot]]
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* [[Robobot and MATLAB]] use of logfiles.
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* [[Robobot hardware]] items.
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* [[Robobot circuits]]
  
 
==Development notes==
 
==Development notes==
  
 
This section is for development notes.
 
This section is for development notes.
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==Software installation Raspberry Pi==
 
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* [[Robobot install on Raspberry]]
 
* [[Robobot install on Raspberry]]
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* DTU network and time setup: [[Network setup]]
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* [[Enable autostart]] and IP display
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===User and network (WiFi)===
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* [[Robobot base software installation]]
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* Setup of [[Robobot webcam server]]
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Connect to DTU Wifi
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* Old [[robobot]], instructions are mostly depricated
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* use NTP (network time protocol) with DTU network (require ntp and ntpdate packages)
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* connect to DTU network without showing secret password
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Instructions here [[Network setup]]
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===Enable autostart===
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====Display of IP====
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Start app to display IP on Regbot display, log CPU temperature and synchronize hostname
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Make an on-rebbot script in the home directory
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cp ~/svn/robobot/setup/on_reboot.bash ~/
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This file is something like:
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#!/bin/bash
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# script to start applications after a reboot
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#
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# run the app to show IP of raspberry on the Teensy display.
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mkdir -p /home/local/svn/log
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cd /home/local/svn/log
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# save the last reboot date
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echo "Rebooted" >> rebootinfo.txt
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date >> rebootinfo.txt
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../robobot/ip_disp/build/ip_disp &
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# save PID for debugging
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echo "ip_disp started with PID:" >> rebootinfo.txt
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pgrep -l ip_disp >> rebootinfo.txt
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exit 0
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Use crontab to run this script at reboot
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crontab -e
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If asked, select the preferred editor (suggesting nano).
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Add this line at the end:
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@reboot /home/local/on_reboot.bash
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====Hostname update====
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A script updates the Raspberry Pi hostname, with the name in ''~/svn/log/robotname''.
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The script ''rename_host.bash'' is:
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#!/bin/bash
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hn=`hostname`
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f="/home/local/svn/log/robotname"
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if [ -f $f ];
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then
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  nn=`cat $f`
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  yy= $(expr length $nn)
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  if [ $yy -gt 2 ];
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  then
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    if [ $hn != $nn ];
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    then
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      hostnamectl set-hostname $nn
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      # seems like /etc/hosts is not updated, but /etc/hostname is
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      sed -i "s/$hn/$nn/g" /etc/hosts
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    else
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      echo Same hostname, all is fine.
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    fi
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  fi
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else
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  echo "File >" $f "< not found."
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fi
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The script needs to be run as root, it is therefore set to run as part of the boot process.
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Create the script in /etc/init.d
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sudo nano /etc/init.d/host_rename.sh
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Enter the following lines into the new file
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#!/bin/bash
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bash /home/local/svn/robobot/setup/rename_host.bash
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Make the file executable and add it to run-level 2 (before networking is started)
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sudo chmod +x /etc/init.d/host_rename.sh
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sudo ln -s /etc/init.d/host_rename.sh /etc/rc2.d/S99host_rename
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The script is then executed when the Raspberry boots, and if the hostname does not match that of the Teensy, then the hostname is modified.
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===Robobot base software===
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To make the initial copy from the repository
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cd
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cd svn
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svn checkout svn://repos.gbar.dtu.dk/jcan/robobot
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To update with a new version
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cd
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cd svn/robobot
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svn update
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==Teensy==
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Software tool chain installation
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==Old Robobot pages==
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[[robobot]] an extension to Regbot with a raspberry pi for more extended missions, but uses mission code in Teensy, like Regbot.
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Latest revision as of 15:39, 9 January 2024

Robobot B is a simplified (2024) version of the old Robobot

[edit] Robobot

Robobot-in-blocks-2024.png Robobot-design-2024.png

[edit] Overview

This section is intended for users.

[edit] Development notes

This section is for development notes.

Retrieved from "http://rsewiki.elektro.dtu.dk/index.php?title=Robobot_B&oldid=6786"
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