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Project Background This is my second project with a BBC micro:bit. Normally I wouldn't apply for 2 projects with the same device but in this case the first road test got derailed by delays in releasing the micro:bit. Nine months after “winning” the first road test the device still had not shipped and there was no information about the status of the road test. It looked like they were re-issuing the road test as a big ideas challenge and since I had designed some circuit cards for the ...
dougw

Tech To Do List

Posted by dougw Top Member May 21, 2016
I like to try new technologies and see what there is to learn and get a first hand feel for their potential. When I see some interesting new technology, I immediately start thinking of ways it might be used and often conceptualize little projects in my head. Some of these are so intriguing, I add them to a mental "to do" list. It seems my "to do" list for tech projects is proportional to the pace of technology development, which is exponentially growing, so the list is always in danger of getti ...
dougw

Stylish Stylus (Touch Pen)

Posted by dougw Top Member Mar 29, 2016
I thought I would share a little discovery I made while trying to make a better touch stylus for capacitive screens. I like to use a stylus to achieve more precise control and reduce finger smudges on the screen, however most conductive stylus tips are large and they obscure what you are touching. The following video shows how I made a transparent stylus with excellent performance and it cost nothing - if you happen to deal with electronic components. Features: ultra low cost very good capac ...
This is a quick unboxing and power up of a $9 CHIP computer in case anyone had doubts about the Kickstarter promises.... For some reason I cannot insert a video in a blog since the site upgrade, so you will have to follow this link: CHIP Computer is Shipping ...
I recently published a blog on how to scientifically interpret what different fingerprint patterns indicate in terms of personality traits. You can check that blog out here: Intimate Science A question came up about how to view fingerprints, so here is a demonstration of how to very simply view fingerprints with great contrast. This makes for a great party trick and if you combine it with a little scientific interpretation as in the blog linked above, you should get your 15 minutes of fame. I ...
dougw

Intimate Science

Posted by dougw Top Member Feb 4, 2016
In honour of Valentine's Day If you want a non-threatening but intimate activity, try the science of reading fingerprints. Few people can resist an offer to scientifically "read" their fingerprints. And you get to hold hands. Back in the early days of automated fingerprint recognition, I was heavily into developing fingerprint recognition systems, but I also delved into why fingerprints are the way they are. It turns out fingerprints form in the womb and their patterns are influenced by the e ...
This summary is a quick tribute to element14 and the forum members who have enabled this forum and this year to be most enriching and enjoyable. This review is a reminder of just how much e14 activity I was privileged to participate in. Simple measures I created around 56 technical videos - which is more than 1 per week! I created about 58 blogs - also more than 1 per week! (and yes - I have a day job, and yes - I play multiple sports every week, and yes - I have a great family, but electro ...
dougw

My 2014 Project Collage

Posted by dougw Top Member Jan 1, 2015
These images are quick links to over a dozen projects I worked on in 2014, although some of them are indirect links. Unfortunately I only managed to publish blogs on about half of the circuit boards I designed in 2014, but there is a time trade-off between getting projects working and blogging about them. Some projects involve multiple off-shoot or sub-projects, like the Robox 3D printer road test that actually involved designing more than a dozen separate objects, some of which required circuit ...
dougw

Project Hall of Fame

Posted by dougw Top Member Nov 13, 2014
I like all the efforts to reward individual contribution and participation, but how about also highlighting excellent content? I think everyone would benefit if a Hall of Fame was created for excellent projects. This would be a place that really showcases one of the most valuable aspects of this community and sets it apart from other discussion forums. There could be categories for tutorials, technical achievement, professional quality, riveting delivery, etc. It could also earn a Hall of Fa ...