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Gerrit

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About Gerrit

  • Birthday 01/01/1

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MIDIbox Newbie

MIDIbox Newbie (1/4)

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  1. Z.B. Microchip http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=2695 oder Cypress (nach Cypress und CapSense suchen)
  2. Eine "spacige" Alternative wäre, diese kapazitiven Touchlösungen zu nehmen, mit denen mitlerweile einige IC-Hersteller hausieren gehen. Damit sind angeblich Slider recht einfach über ein passendes PCB-Layout machbar. Das jeweils kombiniert mit einer LED-Kette und der Star-Trek Controller für den Transporter ist fertig.
  3. Do you have any information, when the PCB's will arrive? In our company we have even for special flexible circuit boards shorter delivery times. And chinese new year is also over. Gerrit
  4. I can find the one change from "Edis", but we can only go back to the "external edit" from 127.0.0.1 on Oct. 20th. Is more history reproducable?
  5. uh,oh Someone increased the order above me. As far as I remember I was above the 250 chips mark. Now I'm just below.... Let's hope, that we reach 500 pieces.
  6. Is it multilayer board? In the layout drawing I can't see any GND connection?
  7. Hello friends, something new with the group-buy? As we have currently 132 boards on the list, that should be enough to go on with the procedure? I'm very keen to get this 5x5 interface running....
  8. USB2 can also be 1.5Mbps. ;) USB2.0 simply adds the 480Mbps mode to the 1.5 and 12 Mbps (and does some minor enhancements). Since the 480Mbps mode works completely different to both others device and host must negotiate about the protocol at a lower datarate and then switch over to 480Mbps. For a good coverage about that topic see http://www.lvr.com/usb.htm Gerrit
  9. Does somebody know a good looking, easy to handle and cheap housing for such a 5x version? I'm looking for some days, but haven't found the perfect solution yet.
  10. As far as I remember every conform USB device must start with a maximum current of 100mA. After initialization the host can allow the device to drain more current - up to 500mA. I had to fight with it when designing an USB connected infrared emitter for remote control. The maximum requested value has to be put into the device descriptor. So work bus-powered 4-fold hubs: 4*100mA for the devices, 100mA for the hub itself = 500 mA from the host. If you put a high-power device in a bus-powerd hub the device will recognized, but shows up the exclamation mark and doesn't work. Basically a 5 port MIDI interface should work without problem as high-power since MIDI is a current loop with just around 10mA.
  11. The Sums in the list seems to be wrong. The world famous calculation program told me that we have 585 chips and 459 PCB's at the moment. (Not counting the "?" PCB's.) Any one with other numbers?
  12. So I hope, that we will reach the 750 mark - or it's enough to skip the "n*250" rule ;)
  13. Oh, schade, ich habe diese ganze Aktion wohl verpasst. Falls jemand abspringen will, ich könnte wohl drei Stück gebrauchen.... ;)
  14. Haven't got an information yet. Is it still coming or missed I something? GG
  15. Is this Bulkorder sleeping, or was I too late with my decision?
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