[project]Laser Harp

[tschosef]

hmm.. hast du dein Lautsprecher aus? ich höre da Puplikum grinssssssss...

tja.. shit happens

[ChrissOnline]

Weil auch alle so neumodisches Zeug brauchen....
Früher haben wir mit Stöcken und Steinen Musik gemacht!

[xp30]

hello laserharp - fans

i am also working on such a project. i am using an arduino and a DAC to generate the voltage for a x - galvo
to deflect the laserbeam. i have only a 20mW laser - but basically the scanner shows me a fan with 9 separate
beams on an angle of 40 degrees ( i see the green dots on the ceiling )

ok - 20 mW is not enough to get a reflection which can be detectet by the fotodiode (BPW34).
So what is your recommended minimum laser power to realize a good detection ?

i will upload my circuit diagramm and also some pics from the scope in next days ...

have fun
thomas

@genesis: could you also send aftertouch midi-signals by moving up and down your hand ?
the idea is to detect the distance of the hand to the buttom via a sensor. so you can change
the pitch of the midi-tone ...

[genesis]

hello
i'm working too on a V2 laser harp

you have some informations here from the original post:

Hello All
after some work on others projects i'm working on V2 laser Harp
the first one was here:
http://www.laserfreak.net/forum/viewtop ... 07&t=37151

like the V1 the project is open and schematics + code are open
But please, thank you not to use anything like diagrams and/or codes without my consent for commercial use (even parts of it) ..... like someone did 2 years ago !!!
But if you're dumb enough to spend money while you can get it for free ... Well so go on. Anyway, I'm here if you want any information or help, just let me know.

Also, my own website is under construction and will come out nextly =o)

this version use
- open and closed frame system
- ATmega 644PA controller or arduino nano board )
- SPI DAC converter
- ILDA compatible output with color channel + intensity control
- two sensor analog input (one trig and one pitch)
- Midi In and Midi out with live programming
- LCD in front panel to control the harp
- remote control with two buttons
- separate sensor box with connector to build and tests different sensors
- you can use free cross compiler for AVR like GCCAVR to make some code


you just need to have a laser with scanners and some electronic knowledge to make the PCB and build the PCB

at this point i've made the diagrams and i'm working on the PCB route.

all the plans will be available by mail to know wich use the system at the end of the development.

here you can find some V1 tests
http://www.youtube.com/watch?v=56Os82IEktw

pictures of the V1 prototype used on the video:



for the closed frame mode i think to use an acrylic tube used in "light pipe" mode with a single ptotodiode at the end. the beams are received along the tube and collected by the photodiode
in this mode the harp is surely less sensitive to ambiant light.

some news about the boards:
just 3D models from Eagle3D and PovRay

the sensor one with OPT101 photodiode


and the mainboard in 3d:

[genesis]

for the minimum laser power i think 200-300mw is a good value except if you are using a closed frame system.

[xp30]

hi !
ok - 200...300mW is a lot of fun - and it is also not cheap and too dangerous for me. so i think that i will use a closed frame system.
here are my circuit for the arduino to create the laserbeams with a x-scanner - i am using 8 pins in parallel mode to send values
to the dac. you have to use a special code for the arduino to send the information simultaneous to the dac.

ideas to improve the circuit are welcome !

[genesis]

hello
sorry for the delay but i'm very busy
for the closed loop i've teh idea to use an acrylic light guide with one photodiode at the end.

for your schematic i think the best way is to use SPI DAC with your arduino.
if your project is not urgent you can wait for schematics because i've allready added an arduino nano on my laser harp schematic.
the website is on the way @ http://www.harpelaser.com

franck.

[genesis]

i'm waiting to have one working prototype before to create the part list and other.
the boards are in manufacturing step and normally shipped the 10 march.

[genesis]

Hi all
i've received the boards!
very good quality with HASL finish.
now i need to solder the components ^ ^

[olive13]

Salut Genesis ton projet est grandiose est très professionnel...Franchement chapeau...
Cependant je me pose tjrs la question a savoir comment les capteurs fonctionnent t'ils ?
sans doute par effet de reflexion?
je connais le principe de reflectometrie mais seulement dans un guide tel une fibre optique (c'est d'ailleurs ce qu'on utilise en transmission laser pour determiner precisement une coupure) mais j'ai du mal a comprendre comment un tel systeme fait il pour fonctionner dans l'air...
pour cela j'ai vu que JM utilise des gants pour se proteger des brulures eventuelles...
Ayant vu la patate du dpss 532 constituant sa harpe je suppose que la puissance est de l'ordre du watt...mais peut etre egalement ses gants sont aussi reflechissants...et contribuant ainsi au bon fonctionnement du système....
Sans doute cette question a été posée précedement mais j'ai du louper un épisode...

Amitiés

Olivier

Tiens un tite photo de son dernier concert @ Marseille "Le Dome"

[genesis]

merki
j'étais à son concert de bercy la semaine derniere
voila quelques photos que j'ai faites (pas évident de nuit, sans trépied, sans flash donc en mode manuel etc....):









c'était super bien mais je suis déçu de ne pas avoir pu avoir un autographe

je pense qu'un morceau de la harpe etait en playback et d autres en live...

pour le principe du capteur, il reçoit juste l'echo du laser réfléchis par la main.
apres sur ma nouvelle version, on va essayer un autre systeme pour voir

[nohoe]

Hallo

Does anyone know which Lasersystem Jean Michel Jarre uses on his actual Tour.
I saw 7 Projector's + the Harp. Two of them where singlecolor Yellow and 5 RGB.
I saw the Concert in Liege last sunday.

Greets
Norbert

[genesis]

i don't know but here in paris he used 9 "white light" dpss laser. each with 2 watts of output power i think.

[genesis]

hi all
some news of the project!

i've worked all the week end on the harp (and more important thing > the coffee )
some pictures:
me with the solder paste:


soldering a component:


first step (passive components):


second step (active components)


last step (connectors and transformer):


and the crucial moment! the first test!

no smoke! and all things seems to be good

after some mechanical adjustments


the front panel PCB:


the mainboard:


and few C lines after:




there is some mistakes on the pcb like switch clearance, mechanical assembly issue and some signal routing error but this is not so bad for a V1 prototype
now this prototype is ready for my friend who work on the code

i keep you in touch

[genesis]

hello all
first tests of the beast
a video is coming

[genesis]

here is a video of the tests
http://www.youtube.com/watch?v=0MKqisjIkRA

and with a musician friend
http://www.youtube.com/watch?v=Fm-3EQFdAgE

[yaRincewind]

Hi genesis,

I just wanted to say "thank you" for sharing this great project


Can´t wait until you continue with your web page.




Cheers,

Rince

[genesis]

thank you for this support.
the project is actually in standby because i've got a heart attack and i'm currently at the hospital after an aortic valve replacement (bentall) since one month today.
but don't worry i'm ok now and i'm waiting to continue the developpment.
greetings

[tschosef]

verry nice laser harp
http://www.youtube.com/watch?v=PyqBegLi ... re=related

[genesis]

verry nice laser harp
http://www.youtube.com/watch?v=PyqBegLi ... re=related

lol!

[genesis]

Hi All some news of this project can be found on our facebook page
http://www.facebook.com/harpelaser
or soon on the official website:
http://www.harpelaser.com

we don't have choosen between selling the boards/files or not because lot of our work was used by others to make it as commercial product and even winning an ILDA award....but we don't earn money for our work...
who said Apple/Microsoft? XD

[genesis]

more information where added
facebook
https://www.facebook.com/harpelaser

website:
http://www.harpelaser.com/

it's free (only the components to buy) and the boards are under quote if you want the "bare PCB"
control a color ILDA laser
open or closed frame use
easy programming (midi in so you play the beam you play the note and it's done!)
other things in the FAQ here:
http://www.harpelaser.com/forum/viewtopic.php?f=19&t=16

and some videos:
how to choose the colors
http://www.dailymotion.com/video/k7JkfbW5FE3QRv3vdpc

how to use it:
http://www.dailymotion.com/video/k1d5nZh59vYJrL3vdeU

USB programming
http://www.dailymotion.com/video/k3YBvcBLinVZCp3Apiq

in use
http://www.dailymotion.com/video/k7xVxSgT0ljowx3z5N1

in pattern mode with a sampler:
http://www.dailymotion.com/video/k4oiQj7Wq3U0kE3vl7Q

enjoy \o/

[genesis]

hello guys!
here is a new video!
http://www.dailymotion.com/video/k1MLvc35LQAgry3JUrx

we have the first laser harp with hand height detection!

the new improvements are:
- sensor can work with neon light without problems
- the height detection
- 20 playlists of 20 songs each with up to 20 beams and up to 5 simultaneous notes for each beam

you can also see how it's easy to program the harp @4minutes 15s (i cut the beam, i play the note on the synth and it's done! the instrument + note + velocity are stored )
25 prototypes are in manufacturing process \o/
i'm waiting for the final price but the bare boards will be available too

[genesis]

I've received the PCB batch if some guys are interested.
here are the prices for the bare PCB:

Here are the prices for this first low quantity batch and for the bare PCBs:
Mainboard: 34.99€
Front panel: 18.50€
Remote control: 10€

The prices are without shipping and with VAT (normally...)

TV report for the "week of the sound"
<iframe frameborder="0" width="480" height="272" src="http://www.dailymotion.com/embed/video/ ... iframe><br /><a href="http://www.dailymotion.com/video/xx15fd ... oyes_music" target="_blank">Harpe laser : un concert son et lumi&egrave;re (Troyes)</a> <i>par <a href="http://www.dailymotion.com/canal32-wizdeo" target="_blank">canal32-wizdeo</a></i>

[genesis]

oh the video code doesn't work....

TV report for the "week of the sound"
http://www.dailymotion.com/video/xx15fd ... QpLYmdJdlt

height sensing demonstration:
http://www.dailymotion.com/video/xwzsu9 ... QpLkGdJdls

\o/

[philippe69]

hello
entschuldigen Sie mein Deutsch Ich bin Französisch
Ich teile mein Abenteuer
Behebe ich viele Instrumente seit vielen Jahren

Ich wollte eine Laser-Harfe zu bauen
Nach Recherchen im Internet harpe laser

Ich fand Laser Harfen fertig zu einem Preis von 699 € bis 800 €
archaische Einstellung, Nein LCD,1 MIDI
Null Interesse , prohibitive Preis: lol:
Und ich stieß auch auf der Website der http://www.harpelaser.com/
meine Geschichte in Bildern laser harpe von genesis
und dass für mich mit Abstand die beste


Farnell und RS










verwendeten Geräte





SMD Lotpaste



Panel






Sie heizen ein paar Sekunden










Remote Control






Unterstützung für LED










sensor1
gibt es eine Änderung, ich B-Version






sensor2





Mainboard ankommen



Die Montage beginnt!









Sie sind nicht verpflichtet, den großen Transformator 220V-12V schwarz installieren, wenn Sie das externe Plug 12v verwenden
Ich habe zwei platziert









Start- +12v/-12 ok +5v ok










installieren driver ok



den Vorgang, dass Sie auf der Website der Harfe downloaden können

http://www.harpelaser.com/hl-download.html

driver W98,Xp

http://www.ftdichip.com/Drivers/VCP.htm



Das bedeutet, dass ich gut gearbeitet, und die Harfe und ein Projekt voll funktionsfähig ist, in jedem Detail zu
erklären,http://www.harpelaser.com

Vielen Dank Franck {genesis}
Du bist ein Genie
und er verdient hat zu diesem Titel:!:
Montage und echte Spiele Kinder

[philippe69]

letzten install firmware





FIN

[philippe69]

ich fertig Ich bereue nichts
Ich kann Spaß haben :-)

[philippe69]

Videos schnell gemacht rauchfreien nicht groß mit einer Kamera

http://www.youtube.com/watch?v=aeLooBjUVYU
http://www.youtube.com/watch?v=iz4RwsdfSYI
http://www.youtube.com/watch?v=NVRGrolq0-E

[genesis]

here is the user manual
http://www.harpelaser.com/files/manual/ ... _UM_EN.pdf

[genesis]

and here is a video showing all the features
http://dai.ly/x1wpclm