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Hello it's Franck
a short movie to show you our Harp operation
with a synthetizer, the note programming
and the beam colors
now we have received the new PCB version
in B version. the new boards that have been recently uploaded
now a new C version is available
because some modification was made on the B prototypes
so now I can show you the installation
here you have the Laser Harp
in the box
here you can see the several boards inside the Harp
the front LCD board with the 3 switches
the mainboard in new version the new prototype
in B revision and now in C
with some modifications like these two caps are too close
I made a mistake and I took the wrong footprint in the library
so it's solved in the new version
this version is powered by the 12v DC input or an
internal power supply module in option
here you have the DC/DC converter to generate
internal symetrical power supplies lines for
the analogue front end, scanner amplifiers, sensor etc...
here you have the midi
the USB connector to program the microcontroller by USB
it's very practical. you only need to set the dip switches
to be in "programming mode". you connect the computer
and you can flash the code inside the microcontroller
after perhaps we can use this system to set the harp by external software
under OS like Windows to save the parameters and memory slots
here you have the sensor
with the lens but it's optional because it works well without
the lens is usefull when you have low power laser
but the disadvantage is the tight angle of the lens
who can ignore far strings on the edge
but this lens is optional...so
here inside the Harp
you can see the boards in place
here the front LCD one connected
to the mainboard with a flat cable
you have the ILDA connector or laser connector
connected to.....you can see
the laser
the footswitch connected to...
the remote connector
next you have the MIDI out
connected to the MIDI IN of the synthetizer
and the MIDI out of the synthetizer
connected to the MIDI in of the Laser Harp
here you have the sensor connector
and the power supply input
all is in place to make a test
here you have the installation
the laser uses a mirror
to reflect the beams to the ceiling
and the sensor get the scattered light from the hand
in the beam
so we can do one test
here you have the synthetizer
connected to the Harp
we can start the Harp
the camera have some focus troubles
it's too bright :)
so we have a "1" on the LCD
because the sensor one is recognized by the Harp
and if I play a note on the synthetizer
you can see the "MIDI in" led is blinking
even if I'm choosing another instrument
each instrument
cause the led to blink
it's important to check this to be sure of the MIDI wiring
if the MIDI in/out are not reversed
and here you have the audio wiring
it's quickly connected to an amplified speaker
here
to do the test
now I'm going to turn off the light
put the white glove to play
it's important to know that this is a prototype
it's working well in dark
you need to have some ceiling height
not too low because the scattered light from the ceiling
is autamatically higher than the one from the glove
but for a prototype it works very well
it's a free version and you will have to do some compromises
and now we can test it. I put the glove
and I turn off the light to make a test