Introduction

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Introduction: Introduction

About: All about science and its modifications

introduction

Step 1:

Step 2:

Step 3: Requirements

Step 4:

Step 5:

Step 6:

Step 7:

Step 8:

Creative Misuse Contest

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Creative Misuse Contest

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    21 Comments

    0
    ins_rakesh
    ins_rakesh

    Reply 3 years ago

    thank you sir...its my first instructable...wil try my best on next...nd i also made Arduino control CNC plotter using Old DVD stepper motor

    0
    GordonM19
    GordonM19

    3 years ago

    Nice attempt , but I have 2 observations here.

    1) Assuming that this is indeed USB bus powered , how many milliamps are you pulling from the bus powering the camera and the LEDs ?

    2) You do not control LED brightness this way. The way you have done it gives you very little control. You need to control the input voltage to them by using a PWM input signal. You can use a simple 555 to give a fixed frequency variable duty cycle waveform to adjust the brightness.This can also reduce the amount of current draw on the USB bus..

    Good Job!

    0
    Chico da Rave
    Chico da Rave

    Reply 3 years ago

    The ideia here is to keep it simple and (almost) free, I dont see why to put an Arduino, this is like a cannon shot in a fly.
    Ins_rakesh, nice work bro, your project can be done without spending a single penny but still a marvelous science device for who cant buy one.

    The issue about the power and the LED brightness is a real question.
    1. Make sure you is not drawing too much current from the USB port (just measure it).
    2. Maybe try another way to dimm the LEDs, but a simple way, not Arduino.

    0
    charles543
    charles543

    Reply 3 years ago

    Ohm's law states that the Induced current through a conductor between two points is directly proportional to the Electromotive force across the two points, and is inversely proportional to the Resistance. That's the way George Ohm said it.

    0
    charles543
    charles543

    Reply 3 years ago

    The best way to control led brightness is to power it with a current source. led brightness is controlled by the current flowing through it. A current source is not hard. You simply put a resistor in series with the load, and use a voltage regulator to control the voltage across the resistor. I=E/R

    0
    ins_rakesh
    ins_rakesh

    Reply 3 years ago

    thank you so much sir...your commt wil help me to make this project improve...i'm beginner here nd its my first instructable...

    0
    GordonM19
    GordonM19

    Reply 3 years ago

    Super , im glad I can help.. Whatever you do , dont forget , enjoy it!

    Just a an idea for you , an Arduino will do the PWM for you , and then you can also control the focus motor as well , as its a stepper motor i believe.. That would be a good upgrade for you!

    0
    Mr. E
    Mr. E

    3 years ago

    Nicely done. Can you put up some image or video captures from the Camera?

    0
    ins_rakesh
    ins_rakesh

    Reply 3 years ago

    find attachment

    IMG_20180704_151302.jpg
    0
    JohnC430
    JohnC430

    3 years ago

    Great idea! Thanks for sharing.

    0
    bcarpenter1
    bcarpenter1

    3 years ago

    I caution builders to make sure your old webcam works with your OS first. I have an old webcam (Logitech V-UM14) that won't work beyond Windows 7. I hate to have someone build this only find out there aren't any drivers for it.

    Other than that I think your instructable is pretty concise... I built one somewhat like this for a USB Microscope, but I used a wood frame.

    0
    ins_rakesh
    ins_rakesh

    Reply 3 years ago

    go for driver updates on device manager...hope it wil work

    0
    ins_rakesh
    ins_rakesh

    Reply 3 years ago

    thank u

    0
    cobourgdave
    cobourgdave

    3 years ago

    Very nice project! As you said, "don't throw any electronic device away." Great ingenuity here and nicely carried out. Good luck in the contest

    0
    ins_rakesh
    ins_rakesh

    Reply 3 years ago

    pls vote for me

    0
    ins_rakesh
    ins_rakesh

    Reply 3 years ago

    ...thank you

    0
    seamster
    seamster

    3 years ago

    Very interesting project - and a great 'creative misuse' idea. Good luck in the contest! :)

    0
    ins_rakesh
    ins_rakesh

    Reply 3 years ago

    thank you...pls vote for me

    0
    bionicbenjy
    bionicbenjy

    3 years ago

    What If... you had 2 drives... mounted the camera head on the second drive mech, you could have an all singing X Y Z moveable scope, save fiddling with the slide to move another area into view... still a good idea in first place