Offline
germany

hi, i did a how-to-solder-guide for the firestARTer-GP2X-midi-interface:
http://forum.gp2x.de/viewtopic.php?t=8978

as i learned soldering myself through this project, this is really a beginners guide for those, who have never soldered before, but need midi on their GP2X... sorry, that it's in german language only... but i think it's still understandable, if you follow all the links there. and there are english descriptions somewhere, i bet. you can also send me an e-mail, if there's a question...

Last edited by gp2xkid (Nov 14, 2010 12:45 pm)

Offline
Milan, Italy

c'mon translate it in english! smile

Offline
matt's mind

low-gain did these http://store.kitsch-bent.com/product/piggy-midi-diy-kit as well.  for anyone not interested in perfboarding and whatnot...

Offline
germany

@arottenbit: if there's a question, just ask me... i won't make a complete translation. i did the documentation in german, because i stumbled over that forum first before i discovered chiptune.org and the people there were very nice and helpful and there was no other german documentation before as far as i know. building the interface is not that difficult, if you get a little bit into the subject... check this: http://images.kitsch-bent.com/piggy2midi.pdf . most difficult thing for me was finding the right cable. low-gain did a good explanation here http://lowgain-audio.com/GP2Xexp.htm . there is a samsung E810 and E720 cellphone cable, that you'll get at ebay and can use for building the cable. programming the PIC is difficult, if you don't own the tools for that. i asked in the gp2x.de-forum and someone offered to do that for me for free..... so just ask around in electronic forums or somewhere near your place..... there must be some computershop or whatever, that can burn the PIC for you. you also get it here http://store.kitsch-bent.com/product/pre-programmed-pic . anything else can be done by yourself, if you follow the firestARTer-schematic exactly: http://www.firestarter-music.de/gp2x/gp2xmidi_v0_5.jpg . it's also recommended to add a 100nF capacitor to the PICs voltage supply (between points 5 and 14 in the schematic). that's it. it's really easy. just try it. i payed about 12 euro (about 15US$?) or maybe less, don't know all prices anymore, for all material needed for the interface incl. the case etc.

@kitsch: yes, i appreciate a lot, that you offer such a kit. i was close to ordering it. i just didn't do so, because all in all incl. international shipping it was a lot cheaper for me to do it 100% DIY... and i wanted to get deeper into soldering anyway. so i prefered to spend the money on a new soldering iron and tools etc. ...

Last edited by gp2xkid (Nov 17, 2010 12:50 pm)