- #Laserdrw add tasks bug how to
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To drive my motor I borrowed a code example using the Stepper library (credits in my code file) which I tuned and changed during the project, according to what I needed. What I needed for my project was just to continuously rotate the stepper motor in a counter clockwise direction (in order to crank the music box clockwise, as both axes are facing opposite each other) and also vary and control its speed. By letting the current flow through the coils, in a particular order, they will create magnetic fields respectively, which repulse or attract the shaft's magnets causing it to rotate at one or more steps.
#Laserdrw add tasks bug how to
It was the first time I used a stepper motor and given that there was not a particular example in the arduino book, I had to research on how to wire, drive and program them, as well as how they work. Bipolar stepper motors contain two electromagnetic coils, with two leads per phase and the central shaft which has magnets mounted on it. The main hardware components used in this project are an arduino Uno, a bipolar stepper motor as an output, a 10k Ohm potentiometer controlling the motor speed and an On/Off toggle switch, as my two inputs and a L293D H-Bridge to drive the motor. The whole circuit was powered by both arduino Uno and an external 9V power supply. In my case, I decided to leave the melody as it is on the record, as these gaps between the notes of the melody will be filled in the future by the scaled up version of the multiple music boxes.
This is the main reason that almost all the well known tunes we hear on music boxes, are re-arranged to fill the melody gaps with arpeggios and other clichés, thus making those melodies "music box friendly". One of the musical issues I came across, was that in the original record, the melody has long lasting notes and is played by instruments with sustained sounds. On the contrary, music boxes are capable of playnig only staccato and can't follow these aspects. This is a process that may take hours and requires that you are very well focused and accurate.
#Laserdrw add tasks bug software
As the paper with the holes is pulled by the music box mechanism, it triggers the appropriate tine that corresponds to the note I’d already programmed. To reach that stage, I initially had to use a music software to transcribe the melody in MIDI, in order to be straight forward and easy enough to punch the holes on the paper. That could also be seen as a paper version of the MIDI editor somehow. The type of music box I’m using can be fed with a roll of musical grid card paper on which, I had to punch holes which represent the notes of my melody. Moreover, its deep symbolism and the inner emotional interaction it creates (to me at least) , as it can evoke a memory, an experience or a feeling. What I liked on my project and motivated me, is the overall physicality in form and the variety of tasks required. This idea is part of a bigger conception of having multiple instances of music boxes, playing the same melody as here and gradually getting them out of phase. The whole concept was finalised, when I recently came across Quadrature's project, where they used motors to control music boxes, but in a different fashion. In a symbolic manner, it could be like a flight back to our childhood, a connection with the child within us. Additionally, the "Music for Airports" album's quiet and contemplative atmosphere, as well as the variety of emotions I feel every time I listen to it and the sense of slipping in and out of it. A year ago, I believed it could be a very good match, combining what a music box and this tune represent, both musically and emotionally.
#Laserdrw add tasks bug plus
The inspiration on that came from my love for music boxes plus other similar instruments with nostalgic and childlike sounds, which seem to call something from our past and where we seem to be very emotionally responsive when we hear them.
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