Difference between revisions of "Timelapse Camera"

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Raspberry Pi Time Lapse Camera
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[[Category: RaspberryPi]]
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== Raspberry Pi Time Lapse Camera ==
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The following Python script will capture a picture from the Raspberry Pi camera every time it is called. The filename of the picture will be date and time stamped and saved to the '/home/pi/pictures' folder.
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<pre>
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#!/usr/bin/env python
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import os
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import time
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import commands
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from datetime import datetime
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d = datetime.now()
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initYear = "%04d" % (d.year)
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initMonth = "%02d" % (d.month)
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initDate = "%02d" % (d.day)
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initHour = "%02d" % (d.hour)
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initMins = "%02d" % (d.minute)
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filePath = '/home/pi/pictures/'
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fileName = time.strftime("%Y-%m-%d_%H%M.jpg");
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fullPath = filePath + fileName
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cameraCommand = 'raspistill -o '
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fullCommand = cameraCommand + fullPath
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os.system(fullCommand)
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</pre>
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To capture images at regular intervals the script can be loaded as a cron job.
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To edit the cron table type:
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<pre> crontab -e </pre>
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The format of the cron table is:
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<pre> m h dom mon dow command </pre>
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where m = minute past the hour, h = hour of the day, dom = day of the month, mon = month of the year and dow = day of week. So to run a script every day at 0735 hours would look like this
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<pre>35 7 * * * script_name.py </pre>
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For the timelapse camera the crontab was configured to run the script every 10 minutes.
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<pre>
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crontab -e
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</pre>
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Add the following line to the bottom of the text file.
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<pre>
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0,10,20,30,40,50 * * * * python scripname.py
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</pre>
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Save the file.
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To check the contents of the cron table type.
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<pre>
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crontab -l
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</pre>
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You should see the script in the table.

Latest revision as of 04:27, 16 May 2015


Raspberry Pi Time Lapse Camera

The following Python script will capture a picture from the Raspberry Pi camera every time it is called. The filename of the picture will be date and time stamped and saved to the '/home/pi/pictures' folder.

#!/usr/bin/env python

import os
import time
import commands
from datetime import datetime

d = datetime.now()

initYear = "%04d" % (d.year)
initMonth = "%02d" % (d.month)
initDate = "%02d" % (d.day)
initHour = "%02d" % (d.hour)
initMins = "%02d" % (d.minute)

filePath = '/home/pi/pictures/'
fileName = time.strftime("%Y-%m-%d_%H%M.jpg");
fullPath = filePath + fileName
cameraCommand = 'raspistill -o '
fullCommand = cameraCommand + fullPath

os.system(fullCommand)

To capture images at regular intervals the script can be loaded as a cron job.

To edit the cron table type:

 crontab -e 

The format of the cron table is:

 m h dom mon dow command 

where m = minute past the hour, h = hour of the day, dom = day of the month, mon = month of the year and dow = day of week. So to run a script every day at 0735 hours would look like this

35 7 * * * script_name.py 

For the timelapse camera the crontab was configured to run the script every 10 minutes.

crontab -e

Add the following line to the bottom of the text file.

0,10,20,30,40,50 * * * * python scripname.py

Save the file.

To check the contents of the cron table type.

crontab -l

You should see the script in the table.