I'm a newbie with electrical engineering. I found out that EE might be the place to take questions about modifying Android hardware; however, much emphasis has been placed on "background research."
What kind of background research do I need to do?
In case it makes a difference, I'm trying to figure out if/how I can put a GPS locator into my $20 tablet that didn't come with one.
@Shokhet Buy an external GPS receiver, although that doesn't qualify as "modifying by EE.SE" standards.
The person who have sent you to EE.SE doesn't seem like an avid EE.SE member himself. I'm not sure he knew what he was talking about when he have sent you here.
@NickAlexeev Oh? ....you should probably leave a comment, then, if this is really the wrong place to ask. Helping other users and all that.....and saving yourself from a whole bunch of off-topic questions, coming from that post.
@Shokhet For future reference, the questions about electronics use are off-topic on EE.SE . Taking a consumer tablet and sticking a consumer GPS receiver onto it is use, not "modifying". I'll add it to that meta discussion too.
@jippie, interesting to know the latter works what did you mean by removing empty values, making the array dimensions smaller? While I could see how it could for a static I didn't think most compilers would be smart enough to optmise and compact the array otherwise. P.S. guessing from the values couldn't it be a uint16_t to halve the size?
I am using a Zener diode along with a flyback diode with a relay in order to speed it up a bit. This works very well but I am currently using a rather over-sized zener from the inventory.
For proper design, I'm trying to determine what the power (or current rating) of the zener diode in the ab...
@jippie, about to head off but not sure for a Cortex / Stellaris off the top of my head but guess it wouldn't make much practical difference, just might be an idea and if 16-bits would fit in RAM that will probably make it faster if an issue.
@jippie the zener? yes. It speeds up the disengagement. Using just a diode would result in an exponential decay but adding a Zener fixes the decay voltage and thus can be faster (if the zener is like 1v... it probably wouldn't be). The V in V = Ldi/dt is now "fixed" rather than exponential
This may fall in the weekend-amusement category to a certain extent, but what exactly is going in this 20 sec. video? As far as I can tell they trigger a phase-to-ground and a phase-to-phase short. Is it some kind of legitimate test or someone goofing around? I don't speak Russian, so I can't tel...