laser Harp V2 open and free

[Genesis]

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/view...?f=107&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 board if you make some wiring using an onboard connector )
- 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:



franck.

edit: due to use of the schematics as commercial i've modified the project development.
i think the best way is to sell the PCB with or without soldered components at a low price.

[shrad]

hello gen!

ton boulot est exceptionnel

[chad]

That look really neat! Nice build.

chad

[mccarrot]

Wow very nice build, I always wanted to build a laser harp.

Can you also provided a pre programmed microcontroller and a PCB?

[300EVIL]

Very nice work! I would be interested in seeing your Arduino based schematics and code. I want to build one for sure!
Thanks!
Adam

[sugeek]

Very nice work! I would be interested in seeing your Arduino based schematics and code. I want to build one for sure!
Thanks!
Adam

Me too! Although I wouldn't mind a group buy with a set of PCB's so I could be lazy. I have a real harp in the house (yes 2 watts of blue looks cheap after that) but I want a laser harp!

-Adam

[Genesis]

to be clear we started the project last week and the first version use the ATmega 644P microcontroller.
i make the hardware and a friend who works on microcontroller platform will make the firmware.

the arduino (Arduino Duemilanove or Nano directly on top of the PCB) one is the second step but i have added a connector on the board to make the right connections. and if you have some basis on Arduino system you can easily start alone. i prefer a simple microcontroller it's cheaper

i'm working on the PCB route and gerber files to build the board this week end.

be patient

[dave]

i prefer a simple microcontroller it's cheaper

Exactly, Arduino's are for people who cant program in assembler

[300EVIL]

Exactly, Arduino's are for people who cant program in assembler

That would be me!

Genesis,

Does this mean you will be selling the etched PCB's? If so, I'll take one if the price isn't too high.
Thanks!
Adam

[Genesis]

perhaps but i need to build a prototype to know the exact price before
i want to test some sensors with our lexel 85 to know if that work without laser modulation.