How to make a stylus for capacitive touch screens, with what we find around the house - video tutorial

This morning my little girl asked me to draw a little tablet, after she started playing she told me that she also wants a "pencil" like mine, I was working on a Galaxy Note with the digitizer (stylus Galaxy Note), unfortunately the Note digitizer does not work on capacitive screens, it has another principle of operation (a special panel behind the display that communicates with the stylus). To please them (and not to take any beating) I decided to quickly build a stylus for capacitive screens, in 5 minutes it was ready and my little girl was extremely happy that she could draw and color in applications. her favorites (and I got rid of her mouth).
When they started to disappear resistive screens, many believed that the stylus will disappear, unfortunately in drawing programs you can not handle too well with your finger (it's kind of weird to draw with your finger) so he felt the need for stylus even for drawing applications. How stylus for resistive capacitive screen goes, accessories manufacturers quickly invented several types, all the simple use of body conductivity, so the stylus will be a kind of extension of the body, it leads on properties Power of the human body.
A stylus can be built quickly with "nothing" that we find in any junk drawer, we need a metal object (thin pipe) that will be the base, it can be a metal pen, it has the role of taking electricity from the human body and forward it to the top, which will be constructed of a sponge wrapped in a thin foil (a piece of bag). The sponge must be slightly moistened in water, for good results we can even add a few particles of salt, the saline solution has a better conductivity than clear water.
As you will see in the tutorial, the logic behind the "machine" is quite simple, from one end to the other the stylus must be a good conductor of electricity, the tip must be protected with foil so as not to wet the screen, so we keep and moisture in the sponge for longer. If you do not have a metal tube, you can use a plastic one that you will wrap in aluminum foil (the one for food).
Our "super sophisticated" gear does not need a battery, it is made quickly, it never breaks and most importantly, it costs us nothing. The only thing we need to do from time to time is moisturize the sponge when we feel it is not working properly.
Good luck with that!

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by Cristian Cismaru



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About Cristian Cismaru

I like everything related to IT&C, I like to share the experience and information I accumulate every day.
Learn as you learn!

Comments

  1. Interesting!

  2. Good and interesting tutorial Cristi… creativity to the maximum;)… continue the series of hardware tutorials that are quite interesting… it would be better on socket 1155 as it is the most widespread

  3. Interesting!

  4. very loud very good idea: D

  5. So what I understand:
    - resistive touch screens work on the basis of heat (once on my phone (which is of course with resistive touch) I tried to use a pen, a pencil, etc.)
    - capacitive touch screens work on the basis of electricity
    I understood it better?
    without comments like:
    -derulezi tutorial
    -you are stupid
    -You a call ***** too obsolete, etc.

  6. Cool thing. Il evidence and I

  7. It works very well thanks

  8. bad Dog:
    So what I understand:
    - resistive touch screens work on the basis of heat (once on my phone (which is of course with resistive touch) I tried to use a pen, a pencil, etc.)
    - capacitive touch screens work on the basis of electricity
    I understood it better?
    without comments like:
    -derulezi tutorial
    -you are stupid
    -You a call ***** too obsolete, etc.

    The screen is based on resistive heat not pressure but, under the first layer of the screen is another layer that senses pressure on the display. You can use anything in the post resistive stylus, even a pencil instead have to be careful not to scratch it usually resistive screens are easily scratched because they are covered with plastic.

  9. bordi21 said

    I tried going great with a simple wet sponge and plastic headlights battery.
    The only problem is that the battery does not spoil because he's sensitive screen caurent anyone has any opinions,

    • You think I put that crazy sponge, trying not to metal ala screen that is scratch, it can be done and the mother lu gorilla glass, everything gets scratched.

  10. cristi welcome
    I have a question that you or your tablet tablet recomanzi.nu I want to have android e nus ce.ideea whatever version

  11. AdrianGudus said

    Paul Balan:
    cristi welcome
    I have a question that you or your tablet tablet recomanzi.nu I want to have android e nus ce.ideea whatever version

    I will allow myself to answer you in the place of Christ. Asus Transformer has a TF101. And I would buy something like this: http://www.huaweidevice.com/worldwide/productFeatures.do?pinfoId=3135&treeId=3290&directoryId=5011&tab=0

  12. Thank you very much adrian

  13. Useful tutorial, thanks.

  14. can you please send the link to drawing application used?

  15. So tablets and phones running on electricity rather than heat sensors

  16. samuel curpas said

    Ok, but put a picture with the finished product… ..

  17. Innagann said

    A question! Would go any sponge or only one in the helmet?

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