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  1. gorgon

    IC with Interrupts and SPI/I2C

    I would think most of the microcontrollers on the market with >4kb flash, has the rest of your requirements, in abundance. TOK ;)
  2. gorgon

    Am I insane? (and 1 smaller question)

    Yes, and no. I was thinking of differenciating between C and C++. C and assembler would be for the smaller versions. There are some extra overhead for the C++, in my experience, even if the micro in question have a C++ compiler. When tinkering with a microcontroller, you are very close to the...
  3. gorgon

    Parallel Circuit - Fireworks Firing System

    I don't know about these electric matches, but I know that explosive actuators has a tendency to short when fired. If you press more than one button at once, you may end up with one short circuit and the rest not getting fired, before you release the shorting switch. Depending on how safe you...
  4. gorgon

    Using Logic Systems

    Being a much older fart in electronics, I started with it almost before the IC was public known, and microprocessors more or less a bright light in the future. During my first job I started designing special interfaces for the equipment I serviced, with logic. And after that I did many big...
  5. gorgon

    Measuring Current

    No problem, you're welcome ;) Good luck hunting the current leak. TOK ;) BTW You could try to disconnect the dynamo/generator (I don't know what you call it) from the battery and measure again. There could be a leak in one of the diodes in the rectifier bridge. A common fault, and maybe...
  6. gorgon

    Am I insane? (and 1 smaller question)

    If you look at the ICD2 documentation, you'll see how that is connected to the target, just a few lines. I think I used 6 including power. It is 5 years ago since I did my last PIC design, but I did use the debugger and all that with no problems. These days I only just program a new batch now...
  7. gorgon

    DC power supply from AC through bridge rectifier

    The name depends on what you want to show with your graph. A sinus wave graph is a representation of an alternating voltage over time, so the labels should be simple. TOK ;)
  8. gorgon

    DC power supply from AC through bridge rectifier

    If you use a 4700uF capacitor, you'll have 0.62V ripple, maybe you forgot a '0'? TOK ;)
  9. gorgon

    blowing up capacitors

    That brings fond memories from very long ago, black powder filled in empty rifle casings, lit with the silver fuse indicator thread from ceramic mains fuses, and a 4.5V battery. Made excellent 'rockets' in wintertime against a black sky. And the 'pling' it made hitting an ice covered road on the...
  10. gorgon

    Am I insane? (and 1 smaller question)

    VIL - Voltage input low level. (/MCLR input) Defined to be <0.2*VDD. VIHH - Voltage input programming level (still /MCLR input) 12.5V<VIHH<13.5V I have no idea. From what you write, not yet? Seriously, it all come down to what your objective is. Do you want to learn to program and use a...
  11. gorgon

    Measuring Current

    If you suspect the measurement to be more than 400mA even momentarily, do NOT use the mA input on your meter(see below). The Ampere inputs are normally protected with a fuse, and that will break if you load it with much more than the rated current. The reason for this is that your meter has a...
  12. gorgon

    Measuring Current

    As I can read from the picture, the meter say 0.000. This should correspond with the 10A scale (9.999). So your measures, if they are 0830, could be 0.83 A. You said it become steady at 0.137, and this is 137mA. As long as you use the 10Amax lead input on the meter, you are measuring with a 10A...
  13. gorgon

    blowing up capacitors

    9V batteries with crocodile leads is a bit flimsy in the energy way. It could be that you didn't manage to produce enough power to heat the capacitor to bursting point. Depends on the size of the capacitor. TOK ;)
  14. gorgon

    Measuring Current

    From the labeling of the meter, both the uA/A and the mA/A position will measure 10A max if the red lead is plugged into the 10A max hole. If you measured a steady 0.137 in this position I would think we are talking about a 0.137A draw from your battery, or 137mA. This is 3.3 Ah over 24...
  15. gorgon

    DC power supply from AC through bridge rectifier

    No, that is not the point. The ripple voltage you have specified is not unrealistic, it's just the reason that the capacitor needs to be rather big. The main point in what I said was that you should use the basic units of the different values, that should make the computation easier to get a...
  16. gorgon

    DC power supply from AC through bridge rectifier

    The easiest way to get a correct result is to use the basic units when computing the formula. As far as I can see, you are a bit off in yours results. I think you will be surprised, due to the low ripple of 100mV. For the voltage value of the capacitors, use 20 or 25V, for a 12V DC. TOK ;)
  17. gorgon

    Need to find accelerometer and make op amp integrator

    Try to take a look at these parts from Freescale http://www.freescale.com/webapp/sps/site/taxonomy.jsp?nodeId=01126911184209 They are not too expencive, at least. TOK ;)
  18. gorgon

    Need to find accelerometer and make op amp integrator

    He, he, didn't look at the price. Yeah, it's way over the top, sorry about that. I suppose its because its a MEMS part. TOK ;)
  19. gorgon

    Need to find accelerometer and make op amp integrator

    ADXL206 from AD is still active, you should take a look and see if you could get to like it. :D (BTW ADXL05 is listed as obsolete) TOK ;)
  20. gorgon

    Looking for a device or circuitry

    If you can use logic this XOR gat will give you what you want. TOK ;)
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