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46  Forum 2005-2010 (read only) / Interfacing / Re: Arduino and Bluetooth on: December 13, 2007, 03:08:04 am
what's the name of your bluetooth serial port? just maybe it's a naming issue ($%_*...) if this only affects serproxy (rxtx package).
if the name is just "COM x", maybe "x" is out of range (i think there was an issue with COM ports above COM 8 or similar).

Did you try to connect to another bluetooth device like a mobile phone or whatever supports the bluetooth serial profile?

if this didn't help you should tell us which version of windows you are using, as well as serproxy.
47  Forum 2005-2010 (read only) / Development / Re:  Libary to allow SMS and emailing via mob on: July 13, 2008, 08:15:18 am
yes. cool. thanks  smiley
48  Forum 2005-2010 (read only) / Development / Re: Midi Protocol on: February 20, 2008, 10:48:44 am
as i mentioned, i'm pretty sure there is no "public" library yet. Don't know what other people are working on though. i put the basic midi in on the playground, but have a more complex version inside a synth project using pitch bend and modulation messages.it mostly just grew wild, so i've yet to find the time to write proper handlers for the different types of messages. (unfortunately i'm really busy putting up a website, which hopefully will help me to get things organised)

Another thing that kept me from starting on the libary was the difficulty to debug programs with the uncommon midi baud rate. i always felt that it might be cleverer to implement something like "software serial" on other pins than RX/TX.

you're absolutely right about the nice to have. but as i mentioned, i suggest two seperate libaries for IN and OUT. they should be compatible though for midi-through and effects. i guess most projects will either be controllers or synths, so splitting the libraries may make things clearer and easier to fork. i think of a synth-lib or a midi-controller-lib.




49  Forum 2005-2010 (read only) / Development / Re: Midi Protocol on: February 20, 2008, 09:20:31 am
Hi Taiya ,
what do you mean by protocol? there are both basic examples for midi-in and -out in the wiki playground. a library does not exist yet as far as i know. if you plan doing one, please let us know. i'd appreciate one too, but wasn't sure about the needed features (channels, event calls etc) , and whether it should be 2 seperate libraries for in an out (probably yes).

best, kuk

50  Forum 2005-2010 (read only) / Development / (test) on: December 18, 2007, 12:46:41 pm
i wanted to know if it's possible to include swf files here.
EDIT: done. no, not possible
51  Forum 2005-2010 (read only) / Development / Re: audio input and output on: November 18, 2007, 07:05:54 pm
hey tr909,

if you don't need recording seacrh the forum for "resistor ladder". if got satisfying 4-bit audio thruput using 4 arduino pins hooked to 4 digital pins. i amplify the mic input with a single transistor. I tried doing audio recording but paul is totally right: 1k is nothing.
i didn't get very far doing any kind of "real-time" manipulation, but  something should be possible.

kuk
52  Forum 2005-2010 (read only) / Development / Re: __inline__ setup and loop? on: October 06, 2007, 06:51:49 am
ok, excuse me for asking stupid questions :-)... i had a short reading here: http://gcc.gnu.org/onlinedocs/gcc/Inline.html


[edit]
(i'm still reading but found this in the meantime)
Code:
Note that certain usages in a function definition can make it unsuitable for inline substitution.
Among these usages are: use of varargs, use of alloca, use of variable sized data types (see Variable Length), use of computed goto (see Labels as Values), use of nonlocal goto, and nested functions (see Nested Functions).


[/edit]
53  Forum 2005-2010 (read only) / Development / Re: __inline__ setup and loop? on: October 06, 2007, 06:40:18 am
hi cheater,
could you explain what you mean? this sounds like something i want to understand but i don't. what do you mean by __inline__ and how would that make things faster?

54  Forum 2005-2010 (read only) / Development / Re: I'm building a code sharing library on: September 02, 2007, 06:33:40 am
i was thinking something similar. i don't even use the existing wiki/playground, i totally prefer the atmosphere of a forum to share code, ideas and small talk. A code/hardware library and versioning still is something that fascinates me, but i think, that this would be more a private thing for me, like a weblog. maybe that's a little egocentric  8-) but without the social components of a forum you take away the fun from sharing. and since i don't think that this place here gets overcrowded yet, i don't think that there's much need for such a platform.

but i want to encourage you to go on with your project! there is definitely a need for simple/intuitive (and free) project-versioning tools. the more the better (not kidding here, i mean it) i'm working on something similar for my school's website. it has nothing to do with electronics. it's just updateable project-documentation with slides. the decision to code it myself rather than picking up an existing solution was to be able to expand it later with similar features.

//ku


55  Forum 2005-2010 (read only) / Development / Re: Arduino interfacing Mac OS X on: October 01, 2006, 01:32:48 pm
that's cool. don't know what to do with it yet, but surely a nice direction to go. i did some cocoa programming about 2 years ago, didn't have arduino back then, so the only useful thing that came to my mind was a fullscreen media-centre like application. i stopped working on it when the first "frontrow" rumors started on the web :-/ ...and when i noticed how complex it would get if i made it customisable with applescripts. which was the main idea.

anyway... thank you for sharing this.

//kuk
56  Forum 2005-2010 (read only) / Deutsch / Re: Arduino-User wohnen.. ?? on: January 17, 2010, 12:33:44 pm
Berlin
57  Forum 2005-2010 (read only) / Deutsch / Re: Suche Sketch für EA DIP204-4 Display on: May 17, 2010, 11:51:06 am
Hallo Jürgen,
Was hast Du denn bisher probiert und damit erreicht?
Der KS0073 ist ja nun kein Hinferungsgrund per se. Hast Du die LiquidCrystal Library mit Beispielen entdeckt? Wird irgendwas angezeigt?

Das hier habe ich auf die schnelle noch im Forum gefunden:
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1249053552

Viel Erfolg erstmal,
kuuk
58  Forum 2005-2010 (read only) / Deutsch / Re: GPSLogger_v2.1 SDLog Problem mit Tempsensor on: December 04, 2009, 01:51:40 pm
kannst du versuchen das phänomen zu isolieren? also mal was anderes an pin3 hängen etc? also nen pull-up oder down mit  nem größeren widerstand (10k +) ?

du benutzt den original SD-code, völlig ohne änderung? oder hast du bereits eine library o.ä. included für den DS1820? Also OneWire-irgendwas?

pin3 ist nen interrupt-fähiger pin. Interrupts konfigurieren sich nicht automatisch, aber ich dachte es zu erwähnen.

ansonsten: habe keine erfahrung mit dem tempsensor, aber mit SD-karten, von denen meine erste sehr sehr empfindlich gegenüber Störungen war. ca. jeder 3 schreib-lese-initalisierungs-vorgang endete im fehler.
habe jetzt keine probleme mehr mit microSD karten von sanDisk (mit und ohne Adapter auf große SD), und eigener 3.3V spannungsversorgung.

viel erfolg








59  Forum 2005-2010 (read only) / Troubleshooting / Re: Strange digital pin behaviour on: November 22, 2007, 07:03:45 am
did you check the voltage on your pins and current through the resistor using your multimeter?
you wrote you declared your pins as outputs using pinMode(pinNumber, OUTPUT), right?
if you got your atmegas blank from atmel, you might try to burn the bootloader again (or try another) and have look on the fuse settings if you don't use arduino to burn the bootloader. some pins have internal pull-up/down resistors. i'm no expert on that. but since there are different bootladers available, i can imagine these a reason for the lost power.

another reason might be some short circuit on your modified NG board. but since your writing it affects all boards...

do the pins behave the same trying one chip across different boards? this would hint at an defective atmega or wrong bootloader.

i hope you can track the problem down before ordering a new board. these things tend to happen again and again.

kuk
60  Forum 2005-2010 (read only) / Troubleshooting / Re: Midi in on: October 14, 2008, 04:03:40 pm
did you try reversing connections on the midi side?
if your korg's signal can drive an LED it should be able to drive the optocoupler as well.

if that direct-to-cable LED is rather dim, maybe reduce the 220[ch937] resistor to something smaller but still large enough for some basic protection. 110 or 50[ch937].

also note how the setup inverts the signal, so with no (midi) input the output is HIGH. (depending on your test LED the current provided through the 3.3k[ch937] might not be enough to prove that optically :-/ )




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