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  • gomibakou commented on Nematic!'s instructable How Rotary Encoder Works With Arduino!5 days ago
    How Rotary Encoder Works With Arduino!

    An important tip: Bouncing.Rotary encoders usually have the same issues than switch buttons having bouncing due to how they are made (unless they are magnetic/optical). I don't know if the Arduino library cares about it, but it's a must to remove any bouncing in contact (also the knob switch if the rotary encoder has one).For a single rotary encoder, using an external RC filter is a good option to free the MCU from long delays or using interrupts to manage the bouncing (unless you make a more advanced non-blocking debouncing management, usually involving interrutps and timers).Otherwise you cannot trust the readings and much less hope a correct behaviour of the rotary encoder, because the bouncing could be interpreted as correct transitions between detents.Anyway there are some software...

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    An important tip: Bouncing.Rotary encoders usually have the same issues than switch buttons having bouncing due to how they are made (unless they are magnetic/optical). I don't know if the Arduino library cares about it, but it's a must to remove any bouncing in contact (also the knob switch if the rotary encoder has one).For a single rotary encoder, using an external RC filter is a good option to free the MCU from long delays or using interrupts to manage the bouncing (unless you make a more advanced non-blocking debouncing management, usually involving interrutps and timers).Otherwise you cannot trust the readings and much less hope a correct behaviour of the rotary encoder, because the bouncing could be interpreted as correct transitions between detents.Anyway there are some software solutions normally using finite state machines that have built in an intrinsic debouncing, regardless of the sampling speed of the rotary encoder.And finally, the rotation speed is important, because faster rotations could miss detents depending on the quality of the rotary encoder (and once again, depending of the software).

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  • Reusing Old Laptop Parts to Build Cheap Portable System

    Most of the DIY is not about saving money just show you can Do It Yourself. Not all is money.This gave me a bunch of ideas for some spare monitors I have around...

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  • Easy Way to Smooth PLA | No Sanding | No Chemicals

    Aren't paint and polyurethane chemicals? I'm scratching my head.

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  • gomibakou commented on Waldemar Sha's instructable How to Make Acoustic Pannels2 months ago
    How to Make Acoustic Pannels

    Cheers. I suppose the best way is just trying or hiring a sound engineer :)

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  • gomibakou commented on Waldemar Sha's instructable How to Make Acoustic Pannels2 months ago
    How to Make Acoustic Pannels

    making the pannels bigger will make any difference? they would cover more space with work to make them.

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  • gomibakou commented on sandilya.anisetty's instructable DIY PCB Cutter7 months ago
    DIY PCB Cutter

    Get a saw blade for aluminium, they have more and sharper teeth, much better for cutting fiber PCBs. Moreover the finishinh will be much better. They are more expensive but not much more and they worth it.They look something like this: http://www.sawsandcuttingtoolsdirect.com/images/PI...The blades for plastic (hard) could do the job but I doubt they will last as much as the designed for metals, because the fiber glass is really abrasive.

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  • How to Make Mozzarella Cheese at Home - Simple Homemade Mozzarella Recipe

    Nice video, simple and self-explaining. Steps are well explained as you said.Btw, do you know how to dry-age mozzarella?

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  • gomibakou commented on geotek's instructable Harvesting Electronic Components12 months ago
    Harvesting Electronic Components

    I agree. I cannot understand about the "it's not a problem" followers, why is it so hard to use a simple fan or similar to reduce the fumes? Is it so expensive or requires so much time? is your health less worthy than a fan? it's "just in case", in the same way you use the seat belt of your car to be safer even when normally you won't have accidents (besides your local regulation can force you to use it). Those followers shoudl think that normally you don't have a problem therefore you don't need to use the seat belt. That is the real non sense here.Simple, would you let your kids being exposed to fumes?

    Because you don't have any side effect it doesn't mean it's safe. Surely your body didn't accumulate enough lead. The problem with lead is that, once it's in your body it remains forever and reaching the critical ammount the effects appear. It's well known the lead makes changes in the brain structure and affects the neurogical connectionsI know welding professionals with no problems at all, and others have serious issues in their eyes (due to the welding light/radiation) and lungs, both using the proper safety equipment. The former will say it's not dangerous because they don't have anything... in the same way the politicians say paying more taxes is good for the country, omitting they earn 3/4 times more than average citizen and pay same or less taxes.Fumes are bad, simple. How do the...

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    Because you don't have any side effect it doesn't mean it's safe. Surely your body didn't accumulate enough lead. The problem with lead is that, once it's in your body it remains forever and reaching the critical ammount the effects appear. It's well known the lead makes changes in the brain structure and affects the neurogical connectionsI know welding professionals with no problems at all, and others have serious issues in their eyes (due to the welding light/radiation) and lungs, both using the proper safety equipment. The former will say it's not dangerous because they don't have anything... in the same way the politicians say paying more taxes is good for the country, omitting they earn 3/4 times more than average citizen and pay same or less taxes.Fumes are bad, simple. How do they affect the person, it depends on the person, exposure time, kind of job, etc... but they are bad for you health.

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  • 4x4 Keypad With Arduino and Processing

    It took some time to find the link again, but I think this is the best explanation about masking and ghosting I found, simple and simple:http://www.dribin.org/dave/keyboard/one_html/Anyway it's also possible to reduce or even eliminate some of these effects using software, but it's not trivial.

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  • 4x4 Keypad With Arduino and Processing

    What about the "ghosting" and "masking"? these are usual problems to count when using matrix keypads. Some diodes (check any good source about ghosting or masking) could help.

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  • Easy Project - Bench Power Supply (0 .. 30V, 2 Amp)

    It must be the most complete step-by-step project about supplies I ever saw, and with caculations as well, without going into deep mathematics/physics. This is not very usual, normally you get the schematic and final values, but not intermediate steps. Nice job.

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  • Easiest, fastest and most effective way to clean a copper CPU/GPU water block

    I don't use this kind of systems, but what if you simply boil the water. It won't prevent all, but won't hurt and you'll get some benefits... as killing most of the bacterias, spores, etc. surely not all but mostly all. Then you can add anykind of aditives to it.

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  • gomibakou commented on VigneshR3's instructable Automatic street Light using ldr1 year ago
    Automatic street Light using ldr

    Do not forget to specify that there are two types of LDR: positive and negative. One decreases resistence with light, the other increases resistence with light (perhaps it is the opposite).

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  • gomibakou commented on KushalS24's instructable operators in c++1 year ago
    operators in c++

    Simple and clean, good for beginers :).You should explain the differences between pre and post-increment operators "++a" or "a++" as elements in an expresion.

    Simple and clean, good for beginers :).You should explain the differences between pre and post-increment operators "++a" or "a++" as elements in an expresion.I think the rest of operators should be mentioned even when the instructable is intended for beginers. Operators like << >> , [ ] -> . (cast), etc.

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  • How I Solar Powered My Air Conditioning Unit!

    Looks nice. This would be a nice improvement were I used to live, with high temperatures on average... Which is the price of all your system, roughly ?

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  • gomibakou commented on saul's instructable Rubber Band Shooter2 years ago
    Rubber Band Shooter

    Today I increase my "dangerousity" x100 :D Simple, nice, clear instructable :D My friends will hate you.

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  • gomibakou commented on kalfalfa's instructable Standing Desk for Engineers2 years ago
    Standing Desk for Engineers

    Next time ;) you can use specific software like "Polyboard" (for design) and "Cutmaster" (for cuttings).

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