Help with a distance massesurement (ultra sonic).
Hey guys. First i suck at english. Second, i got this project where were "building" a toycar, which needs to be able to follow a white line, and go around obtacles if they are in front of it, and get...
View ArticleNewbie Question: Black Patch on SMD
I'm pretty new to electronics, and I've started tearing apart old toys my kids no longer play with. Often, I see what I think are surface mount ICs attached to circuit boards using a black mound of...
View ArticleHomemade flex sensor?
Ive seen these on sites like instructables, but for my project I want to make a 3 ft long flex sensor. would it be possible to pinpoint where the flex is occurring using an Arduino MCU, and having LEDs...
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Shortwave Radio Circuit Help.
Hello all, I'm new to Reddit and hope this is the right board. I have been wanting to build a shortwave radio and found this schematic. [IMG]http://i.imgur.com/G2jBgx7.jpg[/IMG]After trying for about a...
View ArticleDay 158.. the natives still have not noticed I am not a capacitor ...
submitted by hipcatcoolcap [link][3 comments]
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PCB acting on its own
I've been working on creating a custom arcade stick for casual use (read SNES games) by using a cheap Wii Classic Controller. The layout of the controller is like this.I've deattached the shoulder...
View ArticleHelp please! looking for LCD monitor-- not sure where to look
I need a bunch of 2 x 3 (approx) LCD monitors for a video collage project. They would ideally have a very small border (no buttons or logos on the front) and they would be playing video loops. Does...
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(x-post from /r/photography) Does anyone have any experience with Cam Ranger?
I really have no clue what Subreddit this would go into. This device is meant for photography so I tried /r/photography but it seems better suited for /r/electronics perhaps. I was curious if anyone...
View ArticleOld Baldwin organ.
I picked up an old Baldwin organ. My electronics skills are novice at best, but looking under the hood I can see a number of projects to try. I really like the way the amp in it sounds. Any one willing...
View ArticleDo you think I can connect these two identical power supplies in parallel?
I have two of these:http://www.cui.com/product/power/ac-dc-power-supplies/internal/60~100-w/vgs-100-seriesI want to put them in parallel to get more current capacity but am hesitant to just hook them...
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I'm looking to build an LED array for one of my aquariums. Do you think these...
submitted by EchoLogic [link][11 comments]
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I garnished my Les Paul guitar with LEDs, it runs of a Class 2 Power supply,...
submitted by notadaddy [link][9 comments]
View ArticleStepping down frequency
Hi all, this is probably a very elementary question... But I have a ~38kHz square wave. How can I "step down" this frequency to 4kHz, using basic stock components?Hope someone here can enlighten me....
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Could anybody help me find a datasheet for this speaker :)?
As the title says, could anybody help me find the datasheet for the following speaker:2403 25522004 WR3165 C (all the information i have about it)Pictures :...
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Today I learned that this is a DE-9 connector, and not a DB-9 connector. See:...
submitted by MrRollboto [link][20 comments]
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