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shobley

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Posts posted by shobley

  4. Ooh! Does this mean it's working...?

    in Testing/Troubleshooting

    Posted

    I checked the wiring on the cable - I am using the standard 2x20 VK2220 module. Conductivity is good, and all the pins are wired correctly.

    I do have a rev3 board but I took the jumper pins from the latest rev documentation. The brightness/contrast dials work OK so I assume I have these the right way round.

    The midibox seems to work - I have uploaded MIOS without error, and the Midibox64 application and all the checksums are OK. I did have an issue originally when I uploaded the wrong hex file.

    Now when I start the board I get a single request to upload, and then a whole bunch of messages (blue in MIOS studio) from the Midibox64 app - basically a set of controller data.

    I have not wired up the AIN or DIN module yet - but I don't think this would stop the display from working.

    Not sure what else to do...

  9. Looking for the 'definitive' dBeam/GP2D12 - GP2D120 circuit...

    in MIDIbox HUIs

    Posted

    OK I apologize in advance if I'm re-inventing the wheel, if so then please point me to where I need to go.

    I'm looking for the definitive circuit for interfacing the GP2D12 - GP2D120 sensor to the AIN module. I've read a lot of the posts and there is a great deal of speculative info out there, but no circuit diagrams that I can see.

    [i need circuit diagrams to work from - I'm a visual learner! :) ]

    The ACSensorizer is cool, but I bit more than I need - so is there a simple interface circuit with something like a trim pot for calibration, and a cap or two for smoothing, that gives us the 0-5V we really need for the AIN?

    Thanks in advance.

    Steve

  11. Testing CORE Rev3 - not sure if it's OK

    in Testing/Troubleshooting

    Posted

    Hi,

    I've only just got around to assembling my MIDIBOX CORE Rev3 I bought in 2005.

    I've put it together and I've completed the ground tests - checks out OK.

    I've tested +Ve and with a 9V battery on J1 I get 5.06V on all test pins apart from pin 11 on the MIDIBOX PIC (Bootstrap V 1.01B)

    On my PCB this pin is only connected to one of the jumper pins in J5 - so I don't know where it's going to get +5V from.

    Any help with what I should do next would be appreciated.

    Thanks,

    Steve

  13. Help needed building MIDIBox64

    in Parts Questions

    Posted

    Hi,

    I've been studying the MIDIOS system, so far I'm a bit confused... ???

    I think I want to build a midi box64 - I say think because I either need that or the MIDI0128 - to process MIDI data for this project:

    http://www.stephenhobley.com/Site/content/view/36/55/

    It seems that all the parts for a MID box 64 are available from

    http://www.avishowtech.com/mbhp/buy.html

    So I need to buy a core module, and the DIN module?

    I think I'll order the DOUT and AIN as well in case I ever decide to use them.

    Do I need the PIC programmed with the bootstrap loader - it appears that I do. Also what should I put in the PIC header ID field when ordering? I don't know what this means.

    If someone wiser could help me out it would be appreciated.

    Thanks!

    Steve

  14. Looking for a MIDI device to drive my laser harp

    in Design Concepts

    Posted

    Hi,

    I recently constructed a laser harp - see  http://www.stephenhobley.com/Site/content/view/36/55/.

    At the moment it's being driven by a computer, I would like to add a PIC based component to drive MIDI on/off messages from the hi/lo inputs from the beam detectors.

    I found this site - it looks like you have everything I might need, but there's so many different things to choose from...

    Which one is best?

    Thanks,

    Steve

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