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Application for controlling a Raspberry Pi camera and managing a collection of timelapse image files hosted on Dropbox.
Designed to collect timelapse images from a small garden. The script itself just connects to wifi, takes a photo, and uploads the image to Dropbox. The magic timing is handled by Crontab. A guide to configuring that tool is here.
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This project was built to be run on a Raspberry Pi Zero W. While I do not know how well the project would run on another version of the Pi, as long as you have a WiFi dongle or WiFi enabled device it should work fine, especially on more powerful machines like the 3 or 4.
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The camera used in this build is an Arducam for Raspberry Pi Zero Camera Module Wide Angle 160°, 1/4 Inch 5MP OV5647 Spy Camera with Flex Cable for Pi Zero and Pi Compute Module. Check out Arducam's website for detailed guides on the types of cameras offered for the Pi. The wide (160°) angle made sense for the shape of the room I was trying to cover. The most important spec of the camera for me was the total shutter instead of a rolling shutter.
Image from Arducam Camera Guide
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For the scale of the project, storing a small cache of short video files through Dropbox made the most sense for ease of setup and accessibility.
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Failed uploads due to connection errors should be addressed by storing files locally until the next upload is attempted.
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picamera
pip install picamera -
dropbox
pip install dropbox
- Raspberry Pi Zero W
- USB to micro usb cable
- USB power supply
- Pi Zero Camera (listed in detail above)
- 3D printed case
- If you would like to use the same case shown here (or improve upon it) you can check out the model I 3D printed at my local Makerspace.
- Credentials for the Dropbox API must be available and stored in a "credentials.json" file in the format of the blank file included in the repository.
- I had some initial issues configuring Crontab tool because of issues with relative paths, you may have to adjust your settings depending on directory structure
- Crontab does not relay output anywhere the user can see inless you pipe it into a log file
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