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16  Community / Bar Sport / Re: Do I NEED my company's digital adapter? on: September 02, 2013, 12:20:58 am
I have absolute bare bones 15 bucks a month cable which gets me a whole handful of channels cause DTV didnt work in my apartment (believe me I tried, I think there is still some rabbit ears duct taped to the bricks) and one day we got an email saying we needed the little adapter boxes for digital cable

doesnt cost me anything, saved me from buying a universal remote to a goodwill tv, and for the first 9-11 months had the 200 some odd channel digital starter package cause I did not register the devices as instructed   smiley-twist

it does suck that they are leeching power 24/7 but they are still free other than that
17  Community / Website and Forum / Re: Search does not work? on: September 01, 2013, 09:59:33 pm
It used to be a google search on the old forum just cause of the nature of the topic a normal forum search engine tends to fail

I know when they changed to SMF it was probably on the bottom of the list, but it really needs to be switched over cause it does not work very well
18  Using Arduino / Programming Questions / Re: programming language to use on a computer closest to Arduino? on: September 01, 2013, 08:48:38 pm
nothing really ... people like to cite processing thanks to the Firmata libraries, but yea I find it to be a pretty big pain to get anything done

I have written stuff from qbasic on a ms dos machine (qb64 is a modern alt) to C# and there's always a pain somewhere 
19  Using Arduino / LEDs and Multiplexing / Re: Star Trek Computer Help on: September 01, 2013, 12:48:55 am
its not killing anything being there given the application though

PS: to jameskirk, ignore that optional part of the schematic, you wont need it
20  Using Arduino / LEDs and Multiplexing / Re: Star Trek Computer Help on: August 31, 2013, 10:32:43 pm
I found this schematic online, its what you want (ignore the red, green, and blue markings since all yours are white), they have 1k going from 15 to ground which should provide a nice 20ma, the resistors I suggested getting would drive your LED's just a tad bit harder, but since they are going to be switched on and off they should be ok
21  Using Arduino / Microcontrollers / Re: Soft reset on: August 31, 2013, 02:26:24 am
oh its super easy

22  Using Arduino / LEDs and Multiplexing / Re: Star Trek Computer Help on: August 30, 2013, 11:58:09 pm
I will whip up a schematic tomorrow for you

but its between pin 15 and ground of each driver
23  Using Arduino / LEDs and Multiplexing / Re: Star Trek Computer Help on: August 30, 2013, 11:44:12 pm
no, like I said power one up using a 150 ohm resistor behind a gel and take a test shot on camera, see how it looks under your lighting (not room lighting, camera lighting)

if you want to see what it looks like more to what I am calcing you need ~60 something ohm resistors, but that is not on your list, and honestly not going to make a HGUE difference

bulk el-cheap-o led's, you can abuse within reason cause, well you got a pile of them for practically nothing

you dont want to get nutty with them cause you need them to last, but generic best guess + common sense, this prop will last till your grand childern throw it away lol

the key is how good they look on camera since that is the goal
24  Using Arduino / LEDs and Multiplexing / Re: Star Trek Computer Help on: August 30, 2013, 11:28:40 pm
yea see my 1 paragrpah blurb (or should I say endless ramble) at the top of my last post

in a nutshell either
25  Using Arduino / LEDs and Multiplexing / Re: Star Trek Computer Help on: August 30, 2013, 11:16:41 pm
either (I can tell you from experience that some serious bulk customer needed something validated slightly out of spec, so after a bunch of testing everything coming off the line NOW  is validated to that detail, but everything else already out in the wild, though the exact same part, is not 100% guaranteed to meet the new spec, thus new part number, its kind of cool, like we have an allegro part, speced to us its the blahblahblah-N, N being the first letter of our company with one little minor diode change internal to the part)  

grab some (like 4-5) 523 (ish) ohm resistors

5 volts 2a is enough, I am calcing for 5 volts so keep around that, but with a 5 amp supply you should be able to run an entire bridge of these things and just keep it under the table during production
26  Using Arduino / LEDs and Multiplexing / Re: Star Trek Computer Help on: August 30, 2013, 10:18:02 pm
ok so it seems like you gotta buy some supplies, you got the stuff to deal with one or two LED's but not a pile of them, so you are going to have to buy some parts to make this possible, as there are limits on what the arduino can provide

my vote is the TLC5916 (*3 = 24 led's under control, so if you wanted to make a 80's style red alert you could) at about 1.65 each + 2-3 bucks postage its the least amount of wiring and external parts to get hooked up wrong

you may have to get some resistors, but still total with shipping less than 10 bucks, and digikey can get it to our part of the country (we are in the same shipping zone)  3 days after the order is filled (keep in mind the 3 day weekend) with the cheap arse option

there is still the question of the power supply, cause at 5 volts your sucking close to an amp (worst case all LED's get stuck on) and the little bitty regulator on board is not going to handle that for long

whats the voltage output of the supply, whats the current rating of the supply, even if you dont have it in hand it should list it on the ebay posting, thats really the last piece of the puzzle to get this working, then we can start showing wiring, and tackle code, which honestly is cake over selecting parts
27  Using Arduino / LEDs and Multiplexing / Re: Star Trek Computer Help on: August 30, 2013, 08:49:43 pm
how many amps can that power supply provide?

do you have any technical documentation on the LED's?

how many transistors do you have?

do you have spare "raw" wire laying around (heck at the currents we are talking about a old floppy disk or IDE cable is more than enough to scrap for wire)

do you have resistors?

whats your budget, do you want to spend more, or do you want to wire more crap up, keep in mind spending more is within a 10$ range, so whats your time worth to you?

and its no problem, I herd up electrical engineers for a living, I can handle a new guy wanting to get something done, EE's are scatterbrained on good days and they know what they are doing lol
28  Using Arduino / Microcontrollers / Re: Need some advice on a multi-chip project on: August 30, 2013, 08:42:27 pm
Too much baggage for my taste in a "real" project.

I flip flop personally, if I can do it in arduino I will, its syntax is so much simpler, if I need hard core raw bit twiddin then yea arduino is the first to go.

oddly enough I have rarely really needed the speed to ditch arduino's simpleness(A I be lazy, B I dont have the time when its already there and I can pass a framework off to an intern!) , but its good to know multiple paths, including other systems like TI's msp or PIC's, FPGA, or a cypress PSoC (which is a mcu and a clpd in a single chip in 8 bit, 16 bit 8051, and 32 bit ARM flavors)

let you pick your tools, rather than your tools pick your brain
29  Using Arduino / Project Guidance / Re: Make the Serial.print(); send the info to a application other than Arduino on: August 30, 2013, 08:37:07 pm
Serial.print just sends stuff to the serial port on the board, what you read it with is really your choice, it could be a custom app, the serial monitor, or a terminal program
30  Using Arduino / LEDs and Multiplexing / Re: Star Trek Computer Help on: August 30, 2013, 07:59:12 pm
gotta work with me man, I dont know what you have already  smiley-grin

I got you have an arduino, based on that last post I assume you have a breadboard?

do you have LED's?

what other hardware do you have?

what kind of power supplies do you have available, wall warts, old phone chargers, laptop bricks whatever

wire, soldering irons, hot glue, lucky rabbits foot, 45,000$ laser cutter(you suck if you do)?


whatever you think you have that you think you might need, we can fill in the blanks, and get you setup
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