SPI slave not working? [x-post from r/arduino]
I'm using an Mbed to communicate with an arduino mega over SPI. The mbed is master and the arduino is slave. I've followed countless pages online trying to get this to work, and I just can't get it....
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Telemetric Input with Arduino - my first electronics project that actually...
submitted by Randomtask3000 [link][9 comments]
View ArticleThere is this great electronics surplus store, in Melbourne, FL, that needs...
I have no affiliation with this store: Astro Too, other than we routinely source things that are 1/10th what you would pay on ebay.Someone with a camera and a little bit of internet knowledge could go...
View ArticleArduino/AVR/AVR32? Which to get started in?
I want to start getting into programming AVRs, it seems like there is a lot of info, tutorials, and books out there for Arduino and the 8 bit AVRs. I have a little bit of experience in programming...
View ArticleQuestion regarding wireless communication.
~ Backstory and reason for asking the question(s) ~I'm on my first semester in electrical engineering and I love it. I do little learning projects at home to better myself (mostly on bootloader-free...
View ArticleElectronics starter kit? Tools needed to build a digital clock?
I'm a sophomore in Electrical Engineering and I was wondering if there are any good (quality/price) electronics kits out there. I want to start designing small electronics with the knowledge that I...
View Articlecan I combine in parallel unlike 12v lead acid batteries?
I'm building an array of 12 volt batteries, but I can no longer get the same exact 12v lead acid batteries. the new ones I can get are smaller and cheaper but more of them. They also cannot produce the...
View ArticleHelp me understand regulations for electronics products.
I am a prototyper/DIYer and would like to ask your help in understanding what laws/safety regulations pertain to both R&D/prototype devices as well as what approvals are needed to sell electronics...
View ArticleI have a question about a circuit breaker.
I have the following circuit breaker with this information on it:Merlin GerinMulti 9K60NC32240/415V~60003And I was wondering what would the Amperage total be allowed on it. Google has failed me(for the...
View ArticleI made two TV-B-gone, a classical one and a TV sniper (over 100m).
submitted by schlecky [link][5 comments]
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3LEDs and 0 switch. Can anyone solve this puzzle?
submitted by KAMFlamenco [link][22 comments]
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Tutorial on the Theory, Design and Characterization of Nyquist Digital to...
submitted by Definitive_Prize [link][comment]
View ArticleStellaris Launchpad USB Mouse project works when compiled with Sourcery...
Hey. I got a simple USB mouse project running on the Stellaris Launchpad. It compiles fine both with the Sourcery Codebench and the Summon Arm toolchains. However, it only enumerates correctly if...
View ArticleLoad resistance of a standard 1.5V lightbulb?
Anyone happen to know the load resistance of a standard 1.5V lightbulb? Trying to send high signals from my Arduino through it and I need to drop the voltage from 5V to 1.5V so the lightbulb doesn't...
View ArticleElectronic challenge! Well not really, but I do have a goal for a backup...
Here we go!I recently picked up a nice portable battery for USB charged devices. It holds 12,000mAh and has four outputs of power through a USB connections (0.5, 1.0, 1.3, 2.1A at 5V). I would like to...
View ArticleQuestion on Servo Driving for Microcontroller Prototypes
I don't completely understand why to use a specialized servo/motor controller shield with a microcontroller. I've always used H-bridges or other amplifier circuitry to control the motors in my robotics...
View ArticleElectronics For Sale Advice
My company is moving operations and I have literally thousands of random electronic components for sale. But I am completely in the dark as to where to unload them. Most sites seem to have contracts...
View ArticleLooking to get started with some basic Audio DSP stuff. Any suggestions?
Hi, I am incredibly interested in audio devices, particularly guitar pedals and things like that. I was wondering if anyone could give me some suggestions on where to start with a Programmable DSP...
View ArticleDual bulb florescent ceiling light question.
Both bulb drastically reduced their light output at the same time. To save me another trip to home depot should I be replacing the ballast or the bulbs? submitted by fakesamurai [link][3 comments]
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