die Farbe der Noten(=Saiten -afrob) ist einstellbar MIDI Interface um den Tracker oder andere MIDI Software zum Spielen zu benutzen Jetzt habe ich gute und genaue Scanner und das System kann einfacher werden. Ich habe schon vor sechs Jahren an einer ersten Version gearbeitet, die aber einfacher war. Genesis hat geschrieben:OK, jetzt da mein Laserprojektor fertig ist kann ich an einem anderen Projekt weiterarbeiten eine Laserharfe Now i need to make evolution on code and i have an idea….change the color of the active note I think that was fun… If there is lot of smoke the sytem can see all notes on but this is when there is lot lot of smoke!!Īnd a picture of the laser with the latest firmware revision Now after lot of coding some tests and funĪnd the firsts tests of the harp in video :Īnd now i stop the tests because the automatic cooling of the laser start and thats too loud for my neighbour We see at the top of the scope the position signal for the scanners anda t the bottom the brightness control.Īt each step of the position we see the brightness pulse to turn on the laser. Here are some first tests of the sensors. I have make the cards without smd component to help of the home made copyįirst test no smoke and the microcontroller reply to isp commands good! We see the photodiode amplifier at the top right of the PCB:
The microcontroller pinning with some modifications dues to the PCB routing:Īnd the theorical schematic of the photodiode amplifier….i not sure for this part…. The In System Programming schematic for the P89C664: Voilà en fait les esquisses de schémas que j ai utilisé pour router If this input is active the note drawed at this time is active and the midi “note on” instruction is sended. When the note is drawed the microcontroller test the sensor input. One for the scanners and one for the laser intensity or brightness midi interface to use tracker or other midi software for playingĪll schematic and code are free (open source ) Here are the characteristics of the project Now i have goods and accurate laser scanners and the system can be simplified. I have worked on a first version six years ago but a simple one. Ok now my laser projector is finished i can work on another project a laser harp
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