Lockdown Pinhole Photography

Keeping making during lockdown is important, so time to do some pinhole photography, which we’ve done before at TOG. It’s incredible what you can do with almost nothing….. just a can, a few bits and some photo paper. You can take amazing long exposure photos, like this 3 month long exposure complete with sun tracks.

If you’d like to have a go, we have a limited amount of photo paper available. Get in touch with us and we can post you a sheet.

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Raspberry Pi outdoor Camera

The project is to create an outdoor stop motion camera that can be powered over one cable and we can connect to remotely to monitor building site.

  • Shopping list:
  • Raspberry Pi 3 or 3. I bought Raspberry Pi 3 Model B+
  • MakerHawk Raspberry Pi Camera IR Fisheye Wide-angle 150-160 Degree 5MP OV5647 Webcam Automatically Switching between Day-Vision and Night-Vision Shooing Mode for Raspberry Pi 2B/ 2B+/3B/3B+/4B
  • Active PoE Splitter Adapter Power Over Ethernet 48V to 12V
  • POE switch 48V (already had)
  • 6.2″x3.5″x2.5″(158mmx90mmx64mm) ABS Junction Box Universal Project Enclosure w PC Transparent Cover
  • Nylon Cable Gland with Locknut
  • CAT5 cable (internal or external)
  • AmazonBasics Circular Polarizer Filter – 77 mm

Software we are running on on Pi is Raspberry and the image capture is imgcomp by Matthias-Wandel https://github.com/Matthias-Wandel/imgcomp (very easy and well documented how to setup)

Things left to do:
Mount camera on off stands so camera is closer to camera filter.
Setup backup fo images nightly to google drive (rclone) https://rclone.org/

Polarisation Box

A few weeks ago we ran Ealaín Solas (Light Art) a workshop where visitors got to learn about polarisation and made their own polarisation box. It was a great workshop with lots of good feedback. People loved their little boxes. With Dublin Maker only a few weeks away Jeffrey decided to make a scaled-up version.

The box follows the same design as the one created by the phablabs project. Two polarizer sheets, one being static and the other mounted on a turntable that can spin around. In this model, the turntable comes from a lazy susan. A device used for cake displays.

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Particulate matter alert!

A few weeks ago on twitter, our friends from 57North Hacklab put is touch with people who were interested in buidling a DIY air quality monitoring system. We were pointed to the great work being done by luftdaten project.

Luftdaten is a citizen science project to collect data of particular matter from homemade monitoring units. All the data is open and available to all to use and used to gain insights into the effect our on environment. They provide a parts list, step by step guide and all the code needed to build your very own sensor to contribute to environmental monitoring in your locality.

A full guide can be found on their website https://luftdaten.info/en/construction-manual/. 

So got stuck in making one to get Ireland started on the map.

The sensor
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