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Soclt

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Everything posted by Soclt

  1. Many of knobs offered here are for round shaft. I see that ALPS pots usually are D-shaft. What about these knobs? Anyone knows good?
  2. How much for pots? Are they 10k linear?
  3. I have ordered some samples too. Not only in serial interface. There are some with normal interface for quadrature outputs.
  4. Hello, it seems like it is hard to buy ALPS or other good quality potentiometer here in Lithuania in a fair price. Maybe someone have 10k linear slide potentiometers. I need 2 simple linear potentiometers and one with middle position. Also if You have rotary pots, I am also interested for about 8 pcs.
  5. Tell me how to make it better :) P.S. All round holes are pots/encoders. All small round holes are 5mm LEDs All bigger squares in series of 4 are illuminated buttons from sparkfun. All bigger squares in Loop section are illuminated buttons samples from omron afaik. All smaller squares are simple buttons.
  6. Hello, here is my new design. I was making it using autocad for panel drills etc, but I thought it would be good to share my design and wait for comments for it. Anyway, HERE IT IS. I was inspired by Traktorizer midibox and Allen & Heath Xone D series controllers, so my design will be like these I mentioned. Any comments welcome :)
  7. I have a spare USB-PIC device working. PM me if interested.
  8. Well I have built USB PIC and GM5, but its interesting what chip could be inside that converter :)
  9. Hello, maybe anyone tried these devices ? Works?
  10. Soclt

    Lithuania

    Yra jau ir ipusejusiu :) kas ka papostinsit gero? :) P.S. Jei ka domina - turiu USB PIC moduli :)
  11. Hehe, mine midibox should be like this one, but I need all effects available :)
  12. Well it may be true, but that operation costs alot. As I have heard, engineers etches the top of the chip, connects wires to special places near the crystal and reads the code, sometimes they use laser, sometimes removes unuseful parts of the chip to get information. As I said, this information is not confirmed :) Only head that it costs around 1000EU for simple locked mcu.
  13. It could be, but it could be a lie. Chinese electronics engineers are able to copy chips using special chemistry and electronics devices. I have seen many exact copies of controllers with the same program, when engineers had no source files. So if these are made in China - it could be unique, not repainted ones.
  14. Hello, I got GM5 chip from one user here (thanks rosch) and saw that it is Atmel at90usb162. Why doesn't anyone try to read hex from it and make a clone? I have tried to do this, but I don't know how to push this chip into programming mode and use Atmel Flip to read the source.
  15. Sorry, removed mistake :) Well yes, I made DC-DC changer because it was interesting to test and do it first time.
  16. I have built +15/-15 from +12 using two MC34063A. Inductors are a little bit noisy and I can hear sound, when they have load, but this DC-DC changer works perfectly. Online calculator that also draws schematic can be found here: http://www.nomad.ee/micros/mc34063a/index.shtml Used these values: Vin:12V Vout:-15V Iout:200mA Vripple:5mV Fmin:30kHz Sorry for mistakes :)
  17. Any cheaper buttons? :) I am also thinking about Omron B3W-9000 (posted here before), for about 2USD. Any other alternatives?
  18. Hello, I am interested in buying GM5 chip as I see it wasn't sold already. How much would it cost to ship it to Lithuania? It should be the same price in the whole Europe Union I think..? Thanks.
  19. I am thinking to order illuminated switches from NKK. Photo can be found here: http://rocky.digikey.com/weblib/NKK%20Switches/Web%20Photos/JB15LPF-JB,%20JB15LPF-JF.jpg Since I can't lasercut button cap, these buttons have removeable cap, so I think it is possible to place a transparent film under it with printed symbol. Not beautiful, but should be OK. Anyone tried these? Farnell offers them for about 2-3EU.
  20. I have made 3 different power supplies (+5V, +15V, -15V) using MC34063A. -15V from +12V gives up to 150mA current. Read datasheet for more information, the schematic is really small, I could draw it later if someone needs.
  21. Image taken from www.elektronika.lt Those parts starting KP... are 7812 and 7912. Diodes can be replaced with common ones. According to this schematic, you can get +/-15V easily.
  22. Really nice design. Keep this thread updated!
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