TexZK

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Thanks mate! I've already seen them on YouTube, and their work is "TERRIFICALLY AWESOME" :o :o :o 8)

Hi all! I'm developing my own USB interface based on MBHP_USB using PIC18F4550. I know there are issues when loopbacking and overloading with many SysEx messages, but my project doesn't rely on them, and is basically a modified keyboard (a "Bontempi System 5" for kids). Anyway, the most annoying thing is that each USB module made with MBHP_USB, shows the "USB Speakers" label when plugged (I'm using WinXP Pro), and I cannot distinguish which module I'm going to use in software. Is there a way to change the device name under the MIDI devices list? Is it related to USB desciptors or to WinXP .INF driver installers? I'm sure it's something related to USB descriptors, because when plugging in a M-Audio X-Session Pro, it shows a customized name, without requiring any host driver. I hope someone sould help, because I'm going to build more than one prototyping board/device, and showing only "USB Speakers" is very confusing when configuring the software!!!

Hi all! I've had an idea about getting rid of (almost) all those rotary encoders and their design "troubles" for big jog wheels: using optical mouse encoders. I don't know if they're fast enough to handle such "hi-speed" data, but I think their design solution would be much easier than with encoders. Just place the sensor under the wheel, then sample data via, say, a SPI bus from the main MCU. With even 400 dpi, you would get MUCH more accurate measurements than with a, for example, 256-steps optical rotary encoder. Interfacing such chips trough a high-speed MCU/DSP (PIC18K or dsPIC33, both available also as 28-pin DIP), it would be possible to get VERY high performance wheels. Can anyone try this out? I'm not an experienced hardware designer/programmer, even if I'm not a "totally n00b", so if someone could support this idea the WHOLE community would be happy ;) I've found some interesting chips at Avago Tech laser/optical mouse sensors page such as: http://www.avagotech.com/pages/en/navigation_interface_solutions/navigation_sensors/laserstream/adns-6010/ which already includes a SPI port for direct reading. The datasheet also looks very complete and with good design examples. I hope there will be an official MIDIbox module using this technology!!!