Author Archives: daveh

Pi-Rex – Bark Activated Door Opening System with Raspberry Pi

By daveh | Published May 12, 2013

Sleep deprivation has been driving me mad recently. And it’s all down to a new member of the family (kind of), our new dog. She barks at night when she’s left out. She barks early in the morning when she’s left in. So once I recognized the patterns of her barking, I realized that all [...]

Posted in Computer Stuff, Tutorial | Tagged , , , | 9 Comments

Using a DSLR as a Digital Microscope

By daveh | Published April 30, 2013

I’ve recently had the need to solder some small components at home, but don’t have a microscope, or even a decent magnifying glass. But then I thought that I’d a rather expensive DSLR and a pretty good macro lens, along with some extension tubes (allows closer focussing). Now I know that the camera has a [...]

Posted in Computer Stuff, Photoshop, Tutorial | 4 Comments

Add a 9-pin Serial Port to your Raspberry Pi in 10 Minutes

By daveh | Published April 16, 2013

Here’s how to add a 9-pin serial port to your Raspberry Pi, and it’ll only take you 10 mins. Well, maybe a couple of weeks to wait for the part to arrive from Hong Kong, but once it arrives, it’s only 10 minutes! Here’s the part you’ll need. It’s an RS232 to TTL converter module [...]

Posted in Computer Stuff, Tutorial | 4 Comments

Lapse Pi – Motorised Time-lapse Rail with Raspberry Pi

By daveh | Published March 7, 2013

Here’s another article in the series of photography related DIY projects using the Raspberry Pi single board computer. This time it’s a Time Lapse rail.

Posted in Computer Stuff, Photography, Tutorial | 36 Comments

“The Burren” time lapse video locations

By daveh | Published March 4, 2013

Since the release of my new video “The Burren”, I’ve had a few queries as to where the locations are that I used in it. Well, here they are. The names are those used on the Ordinance Survey Ireland maps, which I’ve loaded on my phone using the ViewRanger app.

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RAID Pi – Raspberry Pi as a RAID file server

By daveh | Published January 31, 2013

This mini-project uses a Raspberry Pi as a RAID array controller.  Now it won’t be the fastest raid controller on the planet, but if you’re only doing a bit of streaming, and a bit of backup, and would like a bit of redundancy, then this solution might be for you. OK, maybe not. The performance [...]

Posted in Computer Stuff, Tutorial | 6 Comments

Macro Pi – Focus Stacking using Raspberry Pi

By daveh | Published January 17, 2013

Here’s another in the series of articles of photographic uses for the Raspberry Pi SBC (Single Board Computer). This time, it’s re-purposing an old flatbed scanner as a macro rail for focus stacking images in macro photography.

Posted in Computer Stuff, Photography, Tutorial | Tagged | 67 Comments

Drop Pi – Water Droplet Photography with Raspberry Pi

By daveh | Published January 2, 2013

Here’s how to build a Water Drop kit using a Raspberry Pi as a controller for a solenoid valve and camera trigger.

Posted in Computer Stuff, Photography, Tutorial | Tagged | 87 Comments

Tethering CameraPi to Adobe Lightroom via FTP

By daveh | Published September 10, 2012

This article shows howto send images to Adobe Lightroom from a wireless connected device.

Posted in Computer Stuff, Photography, Tutorial | 7 Comments

HOWTO – Switching on/off a DC motor with a Raspberry Pi

By daveh | Published August 26, 2012

Here’s a very basic howto on switching a DC motor on/off with a Raspberry Pi using a transistor.

Posted in Computer Stuff, Tutorial | 6 Comments