Follow mercenarymind on Twitter
Washing Machine to Hydroplant
Written by Administrator   
Tuesday, 18 October 2011 00:00


I Hope they do a how to on the DIY solenoid. That could be useful for a number of things.
Last Updated on Tuesday, 18 October 2011 20:06
 
PC Fan Repair
Written by Hacked Gadgets   
Monday, 17 October 2011 00:00
Authors: Hacked Gadgets

PC Fan Repair

I have changed out quite a few fans over the years, you know the ones that I’m talking about, they make your PC sound like it’s a jet engine on takeoff. A few times I blew the dust out of the fan, pried the fan blade off and dropped a few drops of oil into the fan shaft. This seemed to always fix the problem but in my case it always turned out to be a temporary fix since the squeal usually came back after a few weeks of operation and when I opened it there was a bunch of black gunk in the shaft. I think I see what my problem was after reading this PC Fan Repair post from hacklordsniper. I should have used bearing grease and perhaps cleaned the fan assembly better. Seems that he is quite a bit more invasive than I have ever been since he utilizes the bath tub to clean fans and other electronic parts.

Via: EEVblog Forum

“You will need it later. Remove the rubber seal, then use tweezers to remove white lock and a small rubber seal again. At this moment the fan will fall apart and you will see why it does not work. Clean all parts, apply ball bearing grease (not regular one, but the one designed for small bearings) to axle and top and bottom of fan. Reassemble and test”


 

via: http://feedproxy.google.com/~r/HackedGadgets/~3/h797kh77vJQ/

Last Updated on Monday, 17 October 2011 00:55
 
When music meets Arduino
Written by Arduino Blog   
Wednesday, 05 October 2011 00:00
A beautiful project by [Leigh Davis]. It is a brilliant proof of how Arduino fits into virtually any sphere of thought and is the shortest path for a creator realizing his idea in reality.

He writes:

I began the first few days by developing a stand alone application build in MaxMSP that understands the notes that a play on my (recently purchased second-hand) flute. I set the range from low C right up to the 3rd octave D. Each note of the chromatic scale triggers a bang, which is coloured uniquely to the other notes bang messages.

The bang message then sets the corresponding color to the display screen on the application. Which will in turn send a signal to the arduino to dispense the corresponding oil color on water according to the different notes. (Something like a physical Milkdrop!)He further plans to control different LEDs, motors and the likes using the Rayne application.


Read more http://arduino.cc/blog/2011/08/29/when-music-meets-arduino/

Last Updated on Wednesday, 05 October 2011 02:51
 
DIY DSLR Shoulder mount
Written by Administrator   
Tuesday, 04 October 2011 00:00
Ever since the hand cams palm sized video cameras have been on the mark i have missed the stability of old shoulder resting cameras. Here is a cool how to video  on making a mount for a dslr that could be used for any camera with a tripod mount.


 
Regular diode used as a photo-element
Written by Administrator   
Friday, 30 September 2011 00:00

robertgawron.blogspot.com writes:

There are special diodes, that are designed to measure light intensity, also regular LED can be used for this, but I was wondering, if any diode is suitable here? In this post I will share results of those experiments.

Theoretical background of this is well described in Wikipedia: “A photodiode is a PN junction or PIN structure. When a photon of sufficient energy strikes the diode, it excites an electron, thereby creating a free electron (and a positively charged electron hole). This mechanism is also known as the photoelectric effect. [...] Since transistors and ICs are made of semiconductors, and contain P-N junctions, almost every active component is potentially a photodiode.” [source]

Regular diode used as a photo-element –[Link]

Last Updated on Friday, 30 September 2011 01:19
 
<< Start < Prev 1 2 3 4 5 6 7 8 9 10 Next > End >>

Page 2 of 138