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rockets4kids

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Everything posted by rockets4kids

  1. If you want to build a creature on the cheap, forget about the steppers and go with servos. 9 gram servos are three bucks a pop, they are dead simple to drive, provide absolute positioning, and only require one I/O pin each.
  2. Of course there are houses that specialize in this work. Needless to say you are going to have to pay for their experience, time, and test equipment. This is exactly why so many hobbyists just getting their feet wet with commercial products sell modules rather than complete products.
  3. Windows only is deal-killer #1 for me. Not being able to export is deal-killer #2 for me.
  4. Yup, those are just rumors along with everything else so far. Regardless, as with all things that are vaporware, I'm still going to assume they are crap until proven otherwise.
  5. I've heard that the "free" version of Altium (1) won't be Altium at all, but something else (2) will only save to the cloud and (3) will only run under Windows.
  6. Personally, I've never had any problems just using a straight edge. Make the first cut light and then apply more pressure with each subsequent cut. The blade will track the groove this way and after the first two scores you won't need the straight edge any more.
  7. http://forum.43oh.com/topic/799-using-the-launchpad-with-a-breadboard/
  8. As Spirilis points out, there is no hard limit but you do need to be aware of voltage droop under loads greater than a few mA.
  9. Something with good connections at a price that doesn't break the bank.
  10. The *simplest* way to do this is to just put your scope on the output and measure the signals.
  11. Can it? Absolutely! Will it? Only if you volunteer to make it happen!
  12. The LaunchPads (even with Energia) are not something you can just throw at most 8-10 year olds. They are only a viable option if you are willing to learn yourself and then teach them.
  13. The math you really need to worry about will be in the digital filter that you will need, but a 2553 should still be plenty fast enough.
  14. I came to make a quip about LEDs and low power, but 0.5 mA is pretty darn impressive! Having to use a power cord does sort of spoil the whole "tiny clock" thing. Have you considered solar and a supercap?
  15. The first is a simple average and the second is a weighted average. Which is preferred depends on what your goals are.
  16. I'll point out that we're at 22 messages discussing two posts.
  17. Personally I don't see anything wrong with job advertisements so long as they are specifically focused on the MSP430.
  18. Here is a list of devices that are exempt: http://www.emcfastpass.com/could-your-product-be-exempt-from-emc-testing-altogether/ This is a good introduction to designing for EMC compliance: http://www.emcfastpass.com/rightfirsttime/ If your device is going to require compliance, the first thing you are going to need to do is read about what is involved in the process.
  19. The first thing you are going to need to qualify is whether you are intenting to sell a component or a finished product. If you are selling a component you (generally) do not need to worry about FCC approval. If you are selling a product, you do. This makes a world of difference in your overall costs.
  20. I have that problem with only 4 TB of storage.
  21. Why did you choose this route over the internal BSL?
  22. What tools have you used for ASM development in the past? Personally, I am a huge fan of the GNU toolchain (emacs+gcc/gas+gdb+make) having using it almost exclusively for countless host and target platforms for nearly 30 years now.
  23. The problem with the MSP430 line is that there is nothing between DIP and fine pitch SMD. Sure, a few of the parts can be had in 0.65mm pitch but most are .5mm. Sadly there are no 0.8mm pitch parts which are much more easy to solder. There was talk a while back of a DIP-40 part in the value line, and I even saw a picture of one, but I have not heard anything about that since.
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