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Exactly like yours except i used veneer and a nail instead of a pen tube
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Pushan Panda, Is your motor step fast enough?! I'm half-way through this project. I'm not familiar with Arduino Uno controllers, but I did learn that the delay function is in milliseconds. A delay of 3 mS (333 Hz) for the motor pulse sequences was too slow for me. 1 mS delay was also too slow, and at the bottom limit of the delay function. When I took the delay out, the motor would just hum with no shaft movement at all. I'm using the A4988 stepper motor driver, so there may be no comparison. It does however simplify the code to one nested loop for the number of chords and the distance between the chords.Then I discovered another function that uses microseconds, delayMicroseconds (). Now I'm down to 500 uS (2000 Hz) for the motor pulse delay with no loss in performance. https://www.arduino.cc/en/Reference/DelayMicrosecondsI also learned that delays shouldn't be used if you are trying to capture an event during a delay. Using timers allows for multiple events to occur simultaneously. I haven't tried that yet, because I'm still working on the upper limit of my stepper motor.
Correction, the pulse delay is one half the period, so delay(3) becomes 166 Hz, and delayMicroseconds(500) becomes 1000 Hz. It makes me wish I had the money for a 20Kpps galvo engine!!
yes he's using a arduino uno
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hey push panda! can you tell me or this motor is alright?because i want a stepper motor so fast that you can't see that the motor is movingcan you please help me?Thank you!https://www.conrad.nl/nl/velleman-stappenmotor-64-...
hey push pandai bought a stepper motor an an url2003 chip, but the stepper motor was too slowi am looking for a stepper motor that is really fast!is this one alright? https://www.conrad.nl/nl/velleman-stappenmotor-64-stappen-mots1-mots1-12-vdc-fasestroom-max-32-ma-92656.html
hey push pandai bought a stepper motor an an url2003 chip, but the stepper motor was too slowi am looking for a stepper motor that is really fast!is this one allright?
I would LOVE to do this, and I have been for a really long time.... Sadly I don't have as much time on my hands as I wish I did to make this... I'm guessing that would wouldn't build (more like commission) me one, huh? XD
is there any minimum requirements for the stepper motor? would a 4 way Arduino stepper motor work? many thanks,Nick
Does it work well?I'm using the same motor, but it makes a whole round instead of just one step.
Hello.. i'm having 3 big problems: the first is the LDR , infact i don't know how to position it because the harp doesn't give to it the signalsecond i'm using a unipolar stepper motor is it ok or not?third: i connected the midi output and the 13 led turned on , but if i want to connect the input and not the output the led doesn't turn onplease send me some pic or pubblish something that will help us, is very urgent :( - DanieleR13
Please help me!I'm using a motor like this: http://www.ebay.com/itm/DC-5V-Stepper-Motor-ULN200... My problem is that the motor makes a whole circle in small steps instead of just one step. How should I modify the code to fix it? - BertoldH
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The step resolution of the motor I used was 200/ rotation.I do not remember the dark resistance or the response time.Tweak the code and add a pot to control the resistance. Just checked out the new chips, they look good! lots of new features.If I was to redo this, I'd either use an easydriver or the A4988 based stepper driver.
Hi, there is no need for a prism.The light reflected from your hand is scattered and the angular range of standard LDRs are enough to pick up a spike in light.So you can basically put the LDR anywhere around the stepper motor.
Please help me!The stepper goes around in small steps nad after that stops for 1 sec, and the whole thing starts from the begining. And again and again...How should I modify the Arduino code?
Can somebody show me how to connect the MIDI?It would be good if anybody could make a video of the whole making. :)
Change infill density in a specific section on a 3D model for 3D printing.
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