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nick83ola

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  • Birthday 01/01/1

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  1. Hi, I think that Midibox is a great project (is the one that get me started on pic16 programming) and it deserves to grow/transform more as more affordable and capable boards are getting available. In particular the esp32 seems to be a good platform for doing some cool usb/bluetooth experimentation, and the stm32 is also promising. But the licensing of the project doesn't allow easily for other people to contribute and create new projects, and I think this has "stopped" the project a bit. Also contributing on a platform like github, maybe implementing automatic builds pipeline, would make everything easier. @TK. would you be open to move the project to a more open source model, with a license such as MIT/Apache or LGPL that will allows also commercial/other derivatives? Would you be open to move the development to some platform like Github? I can volunteer some times to make the transition happen. Thanks, Nick
  2. Hello!!! I have buyed this LCD http://www.artronic.pl/o_produkcie.php?id=618? Mios display the charachter on the wrong position (f ex print correctly carachter only if I set an offset of 14 in mios studio!!!) I need to develop a custom LCD driver?? Thanks Nicola Lunghi
  3. ecco lo schema semplificato del bus...
  4. I have opened the case and traced the schematic of the two board. The board 1 and 2 use a flat cable to connect to the main board. all the led on the two boards are connected to SN74HC374 octal D-latch. the microprocessor put the data on all the devices simultaneusly and then activate the clock pin only to the selected devices or the bus structure is this: 8 bits shared between all 5 HC374 5 bits connected each to 1 HC374 clock bit. this for led displaying. (i think that the led are always on or off... no strobing) ah all of the bus bit are tied with a 10k pullup to +5V for the switch, all the switches are grouped by group of eight and are connected like this 1K diode switch +5V ----\/\/\/\/\---->|-----------/___--------- common "read enable" bit of the bus with a 10k pullup to +5V | bit of the bus-----| there are 3 of these "array", one in the board 2 for the foot switches, 1 in the board 1 for the footswitches, and 1 in the board 1 for select/save/ etc etc the tiny button below LED Display. For switch reading I think that the micro pull down the "read enable" bit, read from the bus and check the bit that have a 0 so the bus have another 3 bit for enable the 3 read switch array. I was wondering if the ucapps main module have the required pin for all of this... Is needed an 8 bit port another 8 bit for control (maybe an encoder?? 3 bit to 8????) 5 adc channel for 5 foot controller Serial In/out perhaps.... USB?? I think that I need to develop a custom board that have all "on board and fit the case with all the opening and put midibox inside,,,,, or to leave midios and develop a custom firmware Cheers Nicola Lunghi ps excuse me for my bad english...
  5. Hello!!! I have a yamaha MFC10 midi foot controller that I use with my POD and g-major and to control my pc effects via midi. I was thinking to convert it to midibox.... or I have opened It and this foot controller have 3 board, a microcontroller board that have the power supply and a custom made yamaha microcontroller and the midi in/out, a board that have 1 row of led and 1 row of switch, a second board that have the 2nd row of switch and led, plus LED display and the buttons. the 3 boards are connected with flat cable and all components are PDIP. I was thinking to replace the microprocessor/power supply board with a midibox board with a custom layout and to use the existing board to control the switch/led i was thinking also to add a LCD to the main panel to display information like program name (better than the stock LED 2 char display) and to mantain the existing LED 7 seg display to display program number (more visible on dark stages!!!!) I will keep you informed if anyone is interested with my progress Cheers Nicola Lunghi ps you can see information about this controller on: http://www.yamaha.com/yamahavgn/CDA/ContentDetail/ModelSeriesDetail.html?CNTID=1158&CTID=#
  6. And how about resistive optocoupler? i have see that mesa boogie use this for control the triaxis... but i haven't tried this... for now http://www1.silonex.com/audiohm/levelcontrol.html excuse me for my english
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