Page 54 - Raspberry Pi as a Foundation for Boosting Computer and Technology Literacy

4 Raspberry Pi accessories
12-megapixel sensor. All cameras are supported by libcamera soft-
ware, connect to the camera serial interface (CSI) socket on Raspber-
ry Pi. Camera Module 3 wide has an expanded 120° field of view and
features an image sensor from Sony (IMX708), which has a pixel den-
sity that produces incredibly detailed images. The latest Raspber-
ry Pi OS also comes with Picamera 2, a Python library that is perfect
for snapping images to building advanced image recognition appli-
cations. Camera Module 3 can be used for home security, time-lapse
photography, wildlife photography, industrial inspection, astropho-
tography, or art projects. Documentation, product brief, and manuals
can be found at  Raspberry Pi Documentation; Accessories; Camera,
 camera-module-3-product-brief.pdf, and  picamera2-manual.pdf.
1 Figure 4.5 shows a set-up with a Raspberry Pi 4 (with Bookworm OS
installed), Raspberry Pi HQ Camera v1 from 2018 with a C/CS mount,
and a 10 megapixels 16 mm lens, to which an old Sony wide conversion
lens (VCL-0637H) has been attached. The photo shown was made after
we:
1. Made all connections
2. Prepared the software
3. Checked if everything was working by typing:

rpicam-hello
after which a preview window opened for about five seconds.

4. Finally, we captured a full resolution JPEG image by typing:

rpicam-jpeg -o test.jpg
in the terminal.
The video capture application for Raspberry Pi is rpicam-vid. For
writing a 20-second video to file, we used:
rpicam-vid -t 20000 -o test.h264
and played the file in VLC application using:

vlc test.h264
Common projects with Raspberry Pi 4 and an HQ camera include
home surveillance systems or remote monitoring, a system for captur-
ing wildlife activity with motion detection features, time-lapse pho-
tography, a set-up for a video streaming server for live streaming or

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