author
9Instructables95,440Views103CommentsBratislava, Slovakia
I am an eight grade student and I just love making cool (sometimes maybe even useful) devices.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable ESP32 Weathercloud Weather Station2 days ago
    ESP32 Weathercloud Weather Station

    Right. The Arduino is only for rain counting. The rain sensor outputs data only for about 60ms so if the ESP32 processor is doing anything else for more than 60ms (which is probable) it won't detect it. Sure it could be done with interrupts but there could be some crashes and errors happening. I also experimented with a flip flop circuit but it wasn't perfect.You could absolutely do that. I actually coded it and it worked pretty good. But just in case it would not work I designed the PCBs with the RTC. After I got them I just used the RTC. It costs just 1€ so it's fine.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable ESP32 Weathercloud Weather Station5 days ago
    ESP32 Weathercloud Weather Station

    Awesome! Yes it should be corrected but I didn't test it. But the I2C part seems flipped compared to mine (which is good). Anyway, mount the RTC with the battery side up, IC side down. Awesome mount! I honestly really like your design. Good luck with the project!

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  • Jakub_Nagy commented on Jakub_Nagy's instructable ESP32 Weathercloud Weather Station12 days ago
    ESP32 Weathercloud Weather Station

    Awesome! Last week? You either live in China or you had very expensive shipping. Either way, I'm really happy to hear that and hope that the project goes well.There have been some issues at the I2C line in my PCB. I corrected them but I didn't order and test the corrected PCB so it isn't 100%. Just let me know when something is wrong.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable ESP32 Weathercloud Weather Station18 days ago
    ESP32 Weathercloud Weather Station

    Thanks for the "tip"!

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  • Jakub_Nagy's entry ESP32 Weathercloud Weather Station is a winner in the Sensors Contest contest 18 days ago
  • Jakub_Nagy's entry ESP32 Weathercloud Weather Station is a finalist in the Sensors Contest contest 19 days ago
  • Jakub_Nagy's instructable ESP32 Weathercloud Weather Station's weekly stats: 19 days ago
    • ESP32 Weathercloud Weather Station
      12,619 views
      205 favorites
      24 comments
  • Jakub_Nagy commented on Jakub_Nagy's instructable ESP32 Weathercloud Weather Station22 days ago
    ESP32 Weathercloud Weather Station

    Thanks! Oh that's exactly what I've been looking for. I'll add that ASAP to my station and Instructable as well.

    Thanks. I did purchase both of the wind sensors from Britain. You can find the links in the BOM or right here: https://www.metcheck.co.uk/collections/spares-accessories/products/climemet-cm2016-ws-replacement-wind-speed-sensor-for-cm2016

    I agree with everything. It is something to think about in the next version.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable ESP32 Weathercloud Weather Station22 days ago
    ESP32 Weathercloud Weather Station

    I'll be happy to see the results!

    Thanks very much!

    Happy to hear that! Let me know when you will start the build.

    Thanks. Sure there is, but I'm not sure why would you want to do that. Do you want your data to be private? Then I would just setup a premium account. Even if I would be doing it with a spreadsheet, I would choose a cloud one such as Google Spreadsheets. Even though the ESP32 can save files on a SD card, I don't think it can handle writing in a spreadsheet format such as .xslx. So you would have the data in a .txt format which would be OK for climatology logging, but absolutely unnecessary and inconvenient when you want real time data. There is a large advantage to the cloud services that's why everything is IoT now. Oh and also, Weathercloud has a function called "Reports" which can basically make you a spreadsheet from data from your station. You can choose any value and any...

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    Thanks. Sure there is, but I'm not sure why would you want to do that. Do you want your data to be private? Then I would just setup a premium account. Even if I would be doing it with a spreadsheet, I would choose a cloud one such as Google Spreadsheets. Even though the ESP32 can save files on a SD card, I don't think it can handle writing in a spreadsheet format such as .xslx. So you would have the data in a .txt format which would be OK for climatology logging, but absolutely unnecessary and inconvenient when you want real time data. There is a large advantage to the cloud services that's why everything is IoT now. Oh and also, Weathercloud has a function called "Reports" which can basically make you a spreadsheet from data from your station. You can choose any value and any time period you want.

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  • Jakub_Nagy followed Open Green Energy23 days ago
      • Solar Powered WiFi Weather Station V2.0
      • DIY All in One Solar Power Pack
      • ARDUINO SOLAR CHARGE CONTROLLER ( Version 2.0)
  • Jakub_Nagy commented on Jakub_Nagy's instructable Arduino Weathercloud Weather Station5 weeks ago
    Arduino Weathercloud Weather Station

    Lets get right on it then!

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Arduino Weathercloud Weather Station5 weeks ago
    Arduino Weathercloud Weather Station

    Hi Luis,That's a good idea. Because of the structure of the station, it would be hard to add a wind direction sensor now. But I'm currently finishing a brand new station which I've been working on for the past few months. It will measure air temperature, ground temperature, heat index, dew point, humidity, atmospheric pressure, wind chill, rainfall, solar radiation, UV index, wind speed and wind direction as well. The Instructable will be published in about a month so stay tuned!Thanks, I'm glad that you like it.

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  • Jakub_Nagy's entry How to Make a Picoballoon is a winner in the Epilog X Contest contest 4 months ago
  • Jakub_Nagy's entry How to Make a Picoballoon is a finalist in the Epilog X Contest contest 4 months ago
  • Jakub_Nagy's instructable How to Make a Picoballoon's weekly stats: 4 months ago
    • How to Make a Picoballoon
      1,164 views
      10 favorites
      15 comments
  • Jakub_Nagy commented on Jakub_Nagy's instructable How to Make a Picoballoon4 months ago
    How to Make a Picoballoon

    Thanks. Even the Adafruit board is what I would call an overkill. It has too many unnecessary pins. The Lopy board has both wi-fi and bluetooth. That does not only add weight but also power consumption. So it is possible but not exactly the best option. From the specification I think that the range should be simmilar. Also, range on ground does not equal the range up in the air.

    Could be. Don't know. I can do some research. This could be helpful: https://www.link-labs.com/blog/sigfox-vs-lora

    There is a chance. But if the flight takes longer than a couple of weeks the chances are that it will fall in the water. Yeah, that's exactly what's written on the balloon by the manufacturer. It could be dangerous for electric cables. But I wouldn't worry about that especially not regarding the descend.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable How to Make a Picoballoon4 months ago
    How to Make a Picoballoon

    Interesting. I didn't know that.I don't think that it is really possible to just cut off communication for 60 million people. You have satelites, underwater cables, radio towers and amateur radio towers. So it'd be hard to destroy such a large infrastructure. But if someone did, that would probably classify as a war act possibly starting a war so the Eurovision Contest would be the least of your worries.It isn't really possible to send picoballoons from Czech Republic to Britain. This is caused by the planetary wind currents. No matter the weather, the wind in Europe flows more or less to the east.An array of picoballoons could be set up. They would have to be anchored though so they don't fly away. Something like this is already in research to be used mainly in developing countries tha...

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    Interesting. I didn't know that.I don't think that it is really possible to just cut off communication for 60 million people. You have satelites, underwater cables, radio towers and amateur radio towers. So it'd be hard to destroy such a large infrastructure. But if someone did, that would probably classify as a war act possibly starting a war so the Eurovision Contest would be the least of your worries.It isn't really possible to send picoballoons from Czech Republic to Britain. This is caused by the planetary wind currents. No matter the weather, the wind in Europe flows more or less to the east.An array of picoballoons could be set up. They would have to be anchored though so they don't fly away. Something like this is already in research to be used mainly in developing countries that don't have internet access. Also, solar powered drone arrays are an considered option.Lastly since internet is a network of computers, the hard work wouldn't really make sense in the end. In order for this system to work, EU would have to collaborate. If you want to connect with mainland, mainland must want to connect with you. Even if the UK was cut off, internal UK communication systems would still work. Websites with servers in UK would be accessible.Your message got through :).

    Super. Ďakujem. Pokračujem po anglicky lebo je to tu medzinárodná komunita.We didn't have to deal with that. The balloon is so small that it doesn't mean any harm to a large aircraft. Everything with the balloon and probe weight less than 100 grams. That's the size of a larger party balloon. If a kid accidentally launches a party balloon he doesn't get a penalty. You absolutely don't need any permission at all. I don't know how it works in USA but I think it is the same.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable How to Make a Picoballoon4 months ago
    How to Make a Picoballoon

    Thanks! Yeah I tried explaining everything in a more relatable and less technical way but I also included the specific info.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable How to Make a Picoballoon4 months ago
  • Jakub_Nagy entered How to Make a Picoballoon in the Epilog X Contest contest 4 months ago
  • Jakub_Nagy made the instructable Valentine's Day Papercraft - Robot Cupid 6 months ago
    Valentine's Day Papercraft - Robot Cupid

    A very EPIC paper robot.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Acoustic Levitator Case6 months ago
    Acoustic Levitator Case

    I'm very happy to hear that!Hmmmm. I experimented with various programs and file types in order to keep the scaling correct.The dimensions you have should be less than 0.5mm off. It was drawn in vector with no stroke so if you set the stroke in your program to zero, you should get the part with the right dimmensions.OK, the dimensions are really very rounded and nice numbers:back part = 126x186bottom = 195x126control panel = 126x67left side = right side = 195x186middle part = 120x123part with hole = 144x126small part = 126x33upper part = 150x126Everything is in mm. I hope this helps.

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  • Jakub_Nagy's instructable Hyperspectral Flashlight's weekly stats: 7 months ago
    • Hyperspectral Flashlight
      1,420 views
      5 favorites
      0 comments
  • Christmas Ornament That 3D Prints Christmas Ornaments

    Like, whaaaat? This is just awesome. You got my vote.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable RGB LED Cube8 months ago
    RGB LED Cube

    Here: https://youtu.be/m5avtCDGUJs

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  • Jakub_Nagy commented on Jakub_Nagy's instructable RGB LED Cube8 months ago
    RGB LED Cube

    Well, sure it does. I did think that the photos are enough. You see, taking pictures of this thing is very hard because the bottom part needs to be photographed with a flash in order for you to see it, but the top part needs to be photographed in complete darkness. That's why the thumbnail for this instructable is made from two photos, one with a flash, and one without flash. And I can't do that with a video. So the video quality is poor. But sure, here is your viedo:

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  • Jakub_Nagy commented on Jakub_Nagy's instructable RGB LED Cube8 months ago
    RGB LED Cube

    Oh, I forgot. Thanks for letting me know. It should be here now.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable RGB LED Cube8 months ago
    RGB LED Cube

    Thanks! Well, sure but I prefer the acrylic. You could also cut the acrylic with a handsaw.

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  • Jakub_Nagy entered RGB LED Cube in the Make it Glow Contest 2018 contest 8 months ago
  • Jakub_Nagy commented on Jakub_Nagy's instructable RGB LED Cube8 months ago
  • Jakub_Nagy posted an instructable RGB LED Cube8 months ago
  • Jakub_Nagy commented on Penolopy Bulnick's instructable Molecule Ornaments8 months ago
    Molecule Ornaments

    Printed all of them yesterday. I will use them on my christmass tree. I like it very much, thanks for sharing!

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Arduino Weathercloud Weather Station9 months ago
    Arduino Weathercloud Weather Station

    That's a really long comment. Thanks for all of the tips. I'll try to use them while building my second station. I'll try to reposition the temperature sensor. I have a wind speed sensor already (it's the one from Adafruit), I'm working on it. It should be added to this page in about a week. There should be some lightning rods on the roof, I'll check it. The UV sensor is already south. I know nothing about how UV rays affect cable insulation. Could you explain? I'm using a shielded data cable with PVC insulation. WOW, that's a really nice station. The page looks nice too. Again, thanks for your time and all the tips.

    Thank you for the information.

    Cool. I'm happy that someone already used it.

    Thanks. I like it more when I look at the data from my computer or phone but sure, it's doable

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Acoustic Levitator Case9 months ago
    Acoustic Levitator Case

    Thanks. I didn't experiment with moving particles. I don't need it. You can change the frequency by applying voltage to the arduino nano pin. The particles then move up and down a bit. There is an instructable called "Ultrasonic Array" which explains how to build a similar levitator that can move the particles according to instructions given to it by a computer simulation. I can't explain it very well. Look it up.Well, I'm working on a second weather station, a hyperspectral flashlight (coming very soon), and a 16x16 RGB matrix T-shirt.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Arduino Weathercloud Weather Station9 months ago
    Arduino Weathercloud Weather Station

    Thanks. They are. Well, I don't know where you got the NiCad battery from. I didn't use that in my station. Yes, I think it's simpler and more stable to have it connected to a inside power source. I didn't realy care about power consumption in this project so it isn't a good idea to power it from a battery whatever the conditons are.

    Thanks for all the tips.- The station was mounted more than a year ago (October 2017) but I couldn't get it working for a long time. That means that the wiring (and everything else) lasted the whole year. Yes, the cable between the middle and the top section is very loose. The only thing that I noticed is that the contacts of the UV sensors were corroded after the year- I didn't know that. I'll try to look into it.- Well, I don't think that I can help it now but thanks for the tip.- This station is very experimental I'm adding/removing/replacing sensors so I'm not confident that I have a finished unit. Also, the circuit board is inside in a server rack so I don't think that I have to wory about weather.Thanks. Sure, you may.

    Thanks so much!

    Thanks. Are you from Slovakia?Ďakujem.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Arduino Weathercloud Weather Station9 months ago
    Arduino Weathercloud Weather Station

    I added the estimated cost (it is 120€/130$) plus I replaced the parts step with a google spreadsheets Bill Of Materials.

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  • Jakub_Nagy's instructable Arduino Weathercloud Weather Station's weekly stats: 9 months ago
    • Arduino Weathercloud Weather Station
      7,864 views
      76 favorites
      11 comments
  • Jakub_Nagy commented on Jakub_Nagy's instructable DS18B20 Radiation Shield9 months ago
    DS18B20 Radiation Shield

    Thanks. I'll try that.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Arduino Weathercloud Weather Station9 months ago
    Arduino Weathercloud Weather Station

    Thanks. Well, that would've been a very nice and HUGE house. It's my school actually. But still, thanks.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Acoustic Levitator Case9 months ago
    Acoustic Levitator Case

    You don't really need to test it. I didn't. Cause I don't have an oscilloscope. And didn't even have to test the transducers, because they were marked corectly. You have to stop worying so much. My levitator worked perfectly on the first try and I'm sure that your will too.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Arduino Weathercloud Weather Station9 months ago
    Arduino Weathercloud Weather Station

    Thanks. Yeah, it took me more than one year to make it work.

    Thanks. I appreciate it very much.

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  • Jakub_Nagy commented on 3DSage's instructable 3D Printed Magnetic Levitation!9 months ago
    3D Printed Magnetic Levitation!

    That isn't an arduino but a variable power supply. I checked the MOSFET I have the right one. Okay, I'll rewind the coil. But could you give me more specific instructions? How many layers should the coil have? Also I couldn't find the 30 gauge wire so instead I used a bit thinner 32 gauge one. I tried smaller and lighter magnets, but that didn't work at all.

    Hi, I built your device, but I have som problems running it. The oscillation frequency seems to be to low. The magnet either oscillates to much and crashes to the coil or if falls. I tried both changing the position of the sensor and changing the input voltage. I also tried sticking some bolts to the magnets in order to change their centre of mass. Could it be the mosfet? My coil is very messily wound up. I wound it with a battery drill. Could you help me? Thanks. Here is slow motion example video of how it works for me: https://youtu.be/PD3NiHXUZXw

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Arduino Weathercloud Weather Station9 months ago
    Arduino Weathercloud Weather Station

    I haven't tried using interrupts, but I'm not sure if that would work. Yeah, it activates mid flight. It's on for just 60 miliseconds. I mean the gauge cost me 10€ and the arduino nano 4€. I don't know if I could've purchased a better one for that price. I tried using a flip flop circuit instead of an arduino, but it didn't work out. But thanks for the tip, I'll try using interrupts on my next station.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Acoustic Levitator Case9 months ago
    Acoustic Levitator Case

    These aren't connectors, those are just soldered wires under a heat shrink tubing.Sure, if you don't wan't two light sources.The DC barrel is the power connector. It's on the side.It's under the user profile.Thanks for the mail.

    Well, if you use just two white LEDs and no UV LEDs then you just have to connect both LEDs negative terminals to the arduino nano GND and the postive terminals to the arduino nano 3V3. I'll try to make a diagram.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Acoustic Levitator Case10 months ago
    Acoustic Levitator Case

    I'm not the maker of the original acoustic levitator, but I'll answer your question. The original polarity marking method didn't work out for me too. I found out that the easiest way to determine the polarity is simply connecting a multimeter to the transducer and blowing into the transducer. All of my transducers were marked correctly from the manufacturer so I didn't have to correct them.Here are step-by-step instructions: 1) Connect a multimeter to the transducer according to the original marking by the manufacturer. 2) Blow into the transducer and watch the voltage on the multimeter. 3) If the voltage rises up, it means that the marking from the manufacturer is correct. 4) If the voltage descends below zero, it means that the marking from the manufacturer is wrong.5) If the marking ...

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    I'm not the maker of the original acoustic levitator, but I'll answer your question. The original polarity marking method didn't work out for me too. I found out that the easiest way to determine the polarity is simply connecting a multimeter to the transducer and blowing into the transducer. All of my transducers were marked correctly from the manufacturer so I didn't have to correct them.Here are step-by-step instructions: 1) Connect a multimeter to the transducer according to the original marking by the manufacturer. 2) Blow into the transducer and watch the voltage on the multimeter. 3) If the voltage rises up, it means that the marking from the manufacturer is correct. 4) If the voltage descends below zero, it means that the marking from the manufacturer is wrong.5) If the marking is wrong, correct it.6) Repeat this process until you've measured all 80 transducers.

    It doesn't really matter in our country but you can call me Jakub. I live in Slovakia. I had to google the term Gastroenterologist. Sure, everyone has to start somewhere. Also, you can use private messaging on instructables.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Acoustic Levitator Case10 months ago
    Acoustic Levitator Case

    Step 6 - Yeah, it's the middle back section.Step 8 - It's in the bottom section. The LM2577 board is glued and both the switches and the potentiometer are screwed to the panel.It's fine. I like that someone shows some interest in this project.

    I don't have a diagram but the middle leg of the potentiometer should be connected to the middle hole on the PCB. I don't know how the other legs should be connected. You can try both combinations. You don't have to worry about destroing the board.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Acoustic Levitator Case10 months ago
    Acoustic Levitator Case

    Sure. The trimmer is marked on the picture. The unit that you found is the right one. It has to have a display. The trimmer has three contacts, and so does a potentiometer. You will have to connect the legs from the potentiometer to the LM2577 board with some wires. The potentiometer can be basically any 10K potentiometer but I strongly reccomend this "3590S-2-103" one.

    Thanks. Wish you luck too.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Acoustic Levitator Case10 months ago
    Acoustic Levitator Case

    Well, I don't see a big demand for it so I'm not planning to sell it online, but I could cut it and send it to you. The problem is that I live in central Europe and the shipping costs for packages beyond Europe are big. If you could give me your location I could give you a better answer.

    I deleted all of the original files and replaced them with a ZIP folder. They should be the right size now. I don't have any experience with manual acrylic cutting but sure, I don't see a reason why not.

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  • Jakub_Nagy commented on Jakub_Nagy's instructable Acoustic Levitator Case1 year ago
    Acoustic Levitator Case

    Thanks. I don't have a schematic. At the time when I was making this instructable I didn't know how to use any circuit design software so I had to draw every schematic manualy and that's hard. Now I'm learning some basics with Autodesk Eagle so I can try to make one. But I don't think it's really necessary. All of the connections are exactly the same as in the original acoustic levitator (which already has a schematic) except for that there is a LM2577 and a switch between DC barrel and the input of L298N. Also, I added four LEDs and a switch and I made I scheme for that.

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