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2015
With Christmas almost upon us it’s time for our annual Element 14 Christmas Project. Last year we built a Santa Trap that used a Raspberry Pi and camera to photograph Santa as he delivers presents around the globe. For 2015 we are going to create an IoT (Internet of Things) Christmas tree that will accept commands via Twitter, so we can control our tree from afar.     For this project you will needA Raspberry Pi A+ or B+, this project does not work with Pi 2. The latest ...
Last time I had determined that the long ribbon cable was too long to fit into the box.  So, I ordered a GPIO header with longer pins for the sense hat and a smaller ribbon cable with a 40 pin connector on one end and a 26 pin header on the other to plug into the PermaProto board. In order to make more room for the board and the connector stack, I removed the three screw terminal connector where I had planned to connect the wires from the Fog machine remote.      Usin ...
I finished up my last blog post by installing the relay board on my PermaProto board.   Next, I needed to assemble the level shifter board.  I say assemble, but all that's required is to solder the single row headers to the board.     Here's what it looks like with the connectors added.     I went ahead and soldered the level shifter board on to the PermaProto.  If I were thinking ahead I wouldn't have placed it so close to the connector.  I would ...
Overview Transportation is an essential part of our daily life especially for college students. Going from point A to point B without any hassle is always a must. However, if you are in a university that has over 66,000 students spanning across five different campuses (2,681 acres of land), there would definitely be issues specifically when it comes to scheduling. Having a PDF copy of the bus schedules is not enough to know when the bus is arriving because there would always be issues like traf ...
OpenCV is an amazing piece of software and the newer Pi's are getting the power to run real time image processing tasks, like face detection.           However, OpenCv is not that user friendly, Lets make an attempt to simplify it a little. Most detection scripts need accompanying files that contain the information to identify what we are searching for in the image we just captured. Luckily OpenCv comes pre packed with some of these Haar-Cascaded [The files that te ...
The skull is controlled by three servo's giving it three degree's of freedom, it also has Led's in the eyes to add a dramatic effect [see the later blogs]   Degree's of freedom: >Up/down >Pan [side to side] >Head Tilt     I'm not going to be putting a full wiring diagram because Charles Gantt did it so well in his blog: Trick or Trivia Halloween Candy Dispenser #004 - Building The Candy Dispenser & Servo Coding    Wire it up to these GPIO pins on ...
Unfortunately I couldn't finish the project before Halloween because I moved recently and didn't bring the right tools with me. However, I will continue the build and blogs. Different from my last blog Step by Step Build Trick or Trivia Halloween Candy Dispenser #4 - LED blink test, GUI Interface, today I will blog the build of audio amplifier.     Usually the sequence when I manually solder components is from low profile parts to high profile parts. To get a good sense of the solderi ...
As I went about thinking on how to assemble the circuitry together to make a presentable project, I wasn't too happy with the idea of using the extended pin header for attaching the sensor board.  However, I found that the GPIO connector on the Pi will happily take an old computer disk cable.  Luckily, I had one of these hanging around.    The only gotcha with this technique is that the connector rows end up swapped around if you connect the sensor board with the connecto ...
Wrap up time!   Sadly after cleaning, and testing and checking everything with my old foginator, it started having intermittent problems.  Sometimes it would work, sometimes, nothing. Not having enough time to get a new one I changed over the idea of a relay just for firing the Foginator and built an outlet Relay inside a 4 gang box similar to https://youtu.be/8cPK8lh6oLI , I had seen this video while waiting for parts and liked the idea of being able to remotely power the relay as w ...
severian

My Foginator 2000

Posted by severian Oct 31, 2015
    It all works nicely, as of this afternoon.  I simplified the audio because I did not get my Raspberry Pi audio cable ready.  With as many Raspberry Pi B+ and newer that have been sold, I wonder why someone does not build audio cables.  Ideally, it would be a short cable with the weird Raspberry Pi trrs connector on one end and a female 3.5 stereo audio jack on the other end.  Then, you could plug cheap computer speakers in.  I mount Raspberry Pis on the ba ...
Well, halloween is basically over and it was a successful letdown. It poured rain tonight, we had about 6 kids. The kids liked the candy dispenser but loved the Wishing Hell. The dispencer had to be setup inside our (small) doorway, the Wishing Hell was mostly covered and sitting outside in the rain. The kids said this is what brought them to our home, but due to the rain they didn't want to all try the dispencer. The main reason for this challenge is for the kids to have fun which made it succe ...

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