Can I make an LED light up with just a few amazon items? (breadboard,...
breadboard http://www.amazon.com/gp/product/B0040Z1ERO/ref=ox_sc_act_title_3?ie=UTF8&smid=A2RKGEIGG4B1JT leds with resistors...
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Best way to fix cut speaker wires?
I have a pair of speakers that I drive from an amplifier in another room. A service technician recently cut their wires (accidentally), and I'd like to fix those speakers. The wires are pretty long,...
View ArticleWhat's the deal with dimmers and transformers these days? (cross-post from...
So I remember reading a while back that there were issues using "some" dimmers with "some" 12V transformers (for low-voltage AC lighting), because the industry never got together and decided on any...
View ArticleInspired by the Chipophone video, I built my own "Midi SID Synth" using the...
submitted by 0BC [link] [4 comments]
View ArticleBasic question about a potentiometer.
Ok, so I'm dealing with a problem on a 1994 Buick Park avenue. It has a security chip in the key, which is basically a resistor with a specific value that the security computer reads. These have a...
View ArticleTesting electronics of a 3D printer (rapman 3.2) [x-post from /r/3dprinting]
I am part of a project at a University where we are putting together a Rapman 3.2 3Dprinter I am on the "electronics" team and have been tasked with testing the fans/touch screen/motors before the...
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My (Battery Operated) 100 Watt LED Flashlight - YouTube
submitted by cnlohr [link] [3 comments]
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Converting a old PC psu | Student Hobby Electronics
submitted by Mprentice1 [link] [comment]
View Articlehow to convert Audio signal to DC usable for ADC
hello guys. im trying to convert an audio signal to dc voltage i can use with my arduino's ADC, its only capable of +5v and -0.3v max. im going to read the signal with arduino and activate leds....
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Tablets For Kids? Laptops? What Happened To Toys?
submitted by SirPumpkinLongshanks [link] [1 comment]
View ArticleIR remote control volume with motorized POT?
I've got a sweet little Topping T-amp which works great except that it has no remote volume control. I'm trying to build a device to sit inline with the input signal and using an IR reciever, micro...
View ArticleThe archives of Analog Devices "Analog Dialogue" (their technical magazine)...
submitted by Chris_Gammell [link] [1 comment]
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Review: LecCroy WaveAce 1002 – Digital Storage Oscilloscope
submitted by kF5OBS [link] [15 comments]
View ArticleHow do you guys get your custom PCBs?
I really dont want to spend that much money for PCBs, I have an InkJet printer, so I cannot do the at home method. For most online services, pricing only makes sense if you buy 100+. I'm not making...
View ArticleQuestion about frankenstein LVDS setup.
I'm trying to recycle an old laptop, I have an LCD panel with a quality screen that has LVDS input (8 bit, two channel). I have the spec sheet, pinouts everything. I have a Toshiba A200-AH3 that I...
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Help make this a reality: A one-handed soldering iron
submitted by xonk [link] [11 comments]
View ArticleHelp with undergraduate thesis
I'm working on my undergrad thesis (final year project). My project is an embedded system, involving analog (signal acquisition) and digital (sampling) and transmission (bluetooth - implemented by a...
View ArticleI don't know what sort of resistor i would need. Can anyone help?
I have a 6V clock and a 12V DC battery, I guess a resistor would do the job of reducing the voltage. But what sort would i need? Is it as simple as a 6V resistor? Thanks Reddit submitted by biGuy1...
View ArticleSoldering Iron gives small amounts of power to leds?
I bought an LOLShield (led matrix) for my Arduino and the weirdest thing happened when I was soldering. When I touched the soldering iron tip to a lead, it would like up if I had my finger on a lead of...
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