analog to Midi converter?

Archiver

I have the Board of Education with the BS2-SX.

I am trying to figure out how to program the stamp to
be an analog to MIDI converter -that would translate
sensor data to MIDI -

I was also wondering if anyone had any info on how to
get a wireless MIDI transmitter - the only one I can
find on the internet is - the Aquilla, and it is
discontinued. Do you know if it is possible to convert
a regular wireless radio transmitter or something
similar into a MIDI transmitter?

thanks!

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Archiver

Oddly enough, I've done exactly this - I built an interactive laser / midi
instrument.

MIDI is supposed to be optoisolated, but if you ignore this requirement,
it's farily easy. +5 on one pin (actually, it's more like +3), GND on one
pin, data on the third. Midi pulses can be send using 31.25 kbaud from the
BS2. If you want code, I can give it to you.

In terms of wireless, you may have latency problems, but I'm not sure
since I haven't done it.


On Wed, 26 Sep 2001, Flowers Christina wrote:

>
>
> I have the Board of Education with the BS2-SX.
>
> I am trying to figure out how to program the stamp to
> be an analog to MIDI converter -that would translate
> sensor data to MIDI -
>
> I was also wondering if anyone had any info on how to
> get a wireless MIDI transmitter - the only one I can
> find on the internet is - the Aquilla, and it is
> discontinued. Do you know if it is possible to convert
> a regular wireless radio transmitter or something
> similar into a MIDI transmitter?
>
> thanks!
>
> __________________________________________________
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Sean T. Lamont, CTO / Chief NetNerd, Abstract Software, Inc. (ServNet)
Seattle - Bellingham - Vancouver - Portland - Everett - Tacoma - Bremerton
email: lamont@a... WWW: http://www.serv.net
"...There's no moral, it's just a lot of stuff that happens". - H. Simpson

Archiver

At 16:21 09/26/01, Flowers Christina wrote:

>I have the Board of Education with the BS2-SX.
>
>I am trying to figure out how to program the stamp to
>be an analog to MIDI converter -that would translate
>sensor data to MIDI -
>
>I was also wondering if anyone had any info on how to
>get a wireless MIDI transmitter - the only one I can
>find on the internet is - the Aquilla, and it is
>discontinued. Do you know if it is possible to convert
>a regular wireless radio transmitter or something
>similar into a MIDI transmitter?

MIDI data are transmitted over wires using a 5 ma current loop at a rate of
31.25 kBaud. Any transmission via an RF transmitter will require
converting current loop signals to something that can be transmitted via RF
and then back to current loop signals at the receiver. Check out
http://www.paralaxinc.com digital for transmitter/receivers, but beware
you'll probably need to square up the received signal and convert it to
current loop data.

Some references can be found by searching on appropriate terms at
http://www.google.com. "wireless MIDI transmitter" is a good starting
point. I saw far more than the Aquilla when searching on these
terms. Another good starting point is with the FAQ referenced in my
signature, though it isn't heavy on the hardware end of things. Check out
the Midi Fanatic's Brainwashing Center in the FAQ.


Jim Higgins
alt.music.midi FAQ - http://home.sc.rr.com/cosmogony/ammfaq.html