Data Logger using Raspberry Pi Scott Cairns 1817523

Appendix D User guide

1. 
   Log in using any account.
   

2. 
   Enter ‘sudo nano /etc/inittab’.
   

3. 
   Scroll down until ‘1:2345:respawn:/sbin/getty –noclear 38400 tty1’ is visible.
   

4. 
   After /sbin/getty type ‘—autologin root’.
   

5. 
   It should now read ‘1:2345:respawn:/sbin/getty –autologin root –noclear 38400 tty1’.
   

6. 
   Press Ctrl + X, a message should appear ‘Save modified buffer’.
   

7. 
   Type ‘Y’, another message will show ‘file name to write’.
   

8. 
   Press enter.
   

9. 
   Restart the Raspberry Pi and it should automatically log in using ‘root’.
   

1. 
   Log in using any account.
   

2. 
   Enter ‘sudo nano /etc/profile’.
   

3. 
   Scroll down to the bottom of the page.
   

4. 
   At the end enter ‘python /home/pi/Desktop/logger.py’.
   

5. 
   Press Ctrl + X, a message should appear ‘Save modified buffer’.
   

6. 
   Type ‘Y’, another message will show ‘file name to write’.
   

7. 
   Press enter.
   

8. 
   Restart the Raspberry Pi and the script should automatically start after logging in (if not using the auto login).
   

1. 
   Log in using root user (‘root’)
   
   1. 
      If the root password has not been set log into the default user (default user: pi default password: raspberry).
      
   2. 
      Enter ‘sudo passwd’ in terminal the user should receive a prompt asking for the new password then confirmation.
      

2. 
   Run the graphical desktop using command ‘startx’.
   

3. 
   Open the file manager (Menu > Accessories > File manager).
   

4. 
   Locate /home/pi/Desktop.
   

5. 
   Right click on the ‘logger.py’ file and go to Properties.
   

6. 
   Under the Permissions tab tick the ‘Make the file executable’ box and click Ok.
   

7. 
   Double click the logger.py file and execute in terminal.
   

8. 
   The python script should now have loaded.
   

1. 
   Log in using root user (‘root’)
   
   1. 
      If the root password has not been set, log into the default user (user: pi password: raspberry).
      
   2. 
      Enter ‘sudo passwd’ in terminal the user should receive a prompt asking for the new password then confirmation.
      

2. 
   Run the command “cd /home/pi/Desktop”
   

3. 
   Run “python logger.py”.
   

4. 
   The python script should now have loaded within the terminal.
   

1. 
   Locate the middle button (indicated by S2) on the Gertboard and press it (or press 2 on a keyboard if remotely connected).
   

2. 
   A message in the terminal should state that the Recording method has changed to ‘stream’.
   

3. 
   Locate the left button (indicated by S3) on the Gertboard and press it (or press 1 on a keyboard if remotely connected).
   

4. 
   A warning will appear followed by sensor information (temperature and optical).
   

5. 
   The red LED will disable and the green LED will now be showing.
   

6. 
   Open a media player such as VLC and load the stream http://ip-address-of-pi:8001/webcam.mjpeg
   

7. 
   The sensor information is sent to COSM and can be viewed on;
   
   1. 
      https://cosm.com/users/scottrpi# - Overview
      
   2. 
      https://cosm.com/feeds/117510 - Optical
      
   3. 
      https://cosm.com/feeds/117505 - Temperature
      

8. 
   Within the ‘logger’ folder (home/pi/Desktop/logger) a file will be created/updated named ‘light.txt’ and ‘temperatures.txt’ which contain information from the sensors.
   

9. 
   Press the left button again (or press 1 on keyboard) to end the sensor data logging.
   

10. 
    The green LED will disable and the red LED will again be showing.
    

11. 
    (If remotely connected) press Q to end the webcam stream.
    

1. 
   The default method when the script is loaded sets it to store data to the SD card (if it has been changed press 2 or middle button/S2).
   

2. 
   Locate the left button (indicated by S3) on the Gertboard and press it (or press 1 on a keyboard if remotely connected).
   

3. 
   A warning will appear followed by sensor information (temperature and optical).
   

4. 
   The red LED will disable and the green LED will now be showing.
   

5. 
   Again the sensor information is sent to COSM and can be viewed on;
   
   1. 
      https://cosm.com/users/scottrpi# - Overview
      
   2. 
      https://cosm.com/feeds/117510 - Optical
      
   3. 
      https://cosm.com/feeds/117505 - Temperature
      

6. 
   Within the ‘logger’ folder (home/pi/Desktop/logger) a file will be created/updated named ‘light.txt’ and ‘temperatures.txt’ which will contain information from the sensors as well as a ‘webcam-XXXX-XX-XX~XX:XX:XX.mpeg’ file containing the webcam footage and the timestamp from when it was taken (in the filename).
   

7. 
   Press the left button again (or press 1 on keyboard) to end the sensor data logging.
   

8. 
   The green LED will disable and the red LED will again be showing.
   

9. 
   (If remotely connected) press Q to end the webcam storing.
   

1. 
   Locate the right button (indicated by S1) on the Gertboard and press it (or press 3 on a keyboard if remotely connected).
   

2. 
   The yellow LED will flash on for a second and off again.
   

3. 
   A message in terminal should state ‘Writing JPEG image to …’.
   

4. 
   Within the ‘logger’ folder (home/pi/Desktop/logger) a file will be created named ‘image-XXXX-XX-XX~XX:XX:XX.jpg’ which will contain the single image and the timestamp from when it was taken (in the filename).