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Accidental Science
Registrace 1. 12. 2014
Projects and experiments in physics, electronics, mechatronics/machines, software, instruments and tools, crafts, woodworking and metalworking.
I mainly show things that I make (or have made) and tips from my experience. So this channel is kind of a video blog.
I have a long experience in designing electronic devices, machines, and in particular software and firmware development for embedded systems.
Also see my site/blog AccidentalScience.com where I put articles, often related to the video published in this channel.
This channel started with documentaries, that I almost no longer make, and are collected in a specific playlist.
While I'll try to upload videos approximately once every 15 days or less, actually this will happens as the videos will become available, so I recommend you to subscribe and click the bell icon to get notified when new videos are available.
I am not a native English speaker, however my videos are in English for people from all over the Europe, and beyond.
I mainly show things that I make (or have made) and tips from my experience. So this channel is kind of a video blog.
I have a long experience in designing electronic devices, machines, and in particular software and firmware development for embedded systems.
Also see my site/blog AccidentalScience.com where I put articles, often related to the video published in this channel.
This channel started with documentaries, that I almost no longer make, and are collected in a specific playlist.
While I'll try to upload videos approximately once every 15 days or less, actually this will happens as the videos will become available, so I recommend you to subscribe and click the bell icon to get notified when new videos are available.
I am not a native English speaker, however my videos are in English for people from all over the Europe, and beyond.
#ADC and Oversampling in 14 minutes: How to get more bits out of Analog to Digital Converters
How to squeeze more bits of those physically available from an Analog to Digital Converter? #Microcontrollers such as the ATmega328 on Arduino boards often are equipped with an #ADC, but usually the on board ADC has a limited resolution.
For example the one available on the Mega32A or the Mega328 has 10 bits, which is not bad but it could be a problem if you want more precision.
In this presentation I show how Analog to Digital Converters work, what is the technique known as Oversampling and Decimation, what are the trade-offs, and a practical example that I made on a board similat to an #Arduino Nano and a network display.
It is a combination of electronics and computer engineering.
Complementary information, code and a web-app simulator is also available on my website.
Try the simulator: accidentalscience.com/samplersimulator.html
How to program a network display and a microcontroller board featured in this video using the NSC event driven framework: accidentalscience.com/17/Remotely%20displaying%208%20Analog%20inputs.html
Full series of #Electronics: czcams.com/play/PLwbCeSU2Kq_zORt4un2iQ3JUYxzWF3cTJ.html
For example the one available on the Mega32A or the Mega328 has 10 bits, which is not bad but it could be a problem if you want more precision.
In this presentation I show how Analog to Digital Converters work, what is the technique known as Oversampling and Decimation, what are the trade-offs, and a practical example that I made on a board similat to an #Arduino Nano and a network display.
It is a combination of electronics and computer engineering.
Complementary information, code and a web-app simulator is also available on my website.
Try the simulator: accidentalscience.com/samplersimulator.html
How to program a network display and a microcontroller board featured in this video using the NSC event driven framework: accidentalscience.com/17/Remotely%20displaying%208%20Analog%20inputs.html
Full series of #Electronics: czcams.com/play/PLwbCeSU2Kq_zORt4un2iQ3JUYxzWF3cTJ.html
zhlédnutí: 715
Video
Why grounding solar panels could be problematic?
zhlédnutí 1,2KPřed 3 měsíci
Undestand what's inside a solar inverter, how it works and its critical elements that may severely affect your whole photovoltaic and electrical installation of your home. This is a two-parts video, previous one is about photovoltaic systems, link below. Two years ago I installed a solar system on my house, and because of shortage of available technicians (and even materials!) I had to do every...
What are the #MPP, topology and configuration in #Photovoltaic systems?
zhlédnutí 139Před 3 měsíci
All about Photovoltaic systems and Max Power Point of #solar panels. In this presentation I share what I've learnt from my experience in installing myself a solar (photovoltaic) system. This is a two-parts video, next is about how solar inverters work, link below. Two years ago I installed a solar system on my house, and because of shortage of available technicians (and even materials!) I had t...
In 7 steps when NO schematic is available: How to #faultfinding and #troubleshooting #electronics
zhlédnutí 1,4KPřed 3 měsíci
How to spot a fault on an electronic board following a methodological approach in 7 steps. Stop blinding guessing what a fault could be, follow the path and a method to spot faults with awareness. This video is inspired by the several comments on my previous video on this topic that you can find here: czcams.com/video/ye9dguKy_Cs/video.html With this presentation my hope is to provide an answer...
Microcontroller Driven Safety Socket w/Remote Control for Your Lab
zhlédnutí 616Před 5 měsíci
A safety socket is a hazard preventing feature for your lab bench when testing devices connected to mains. This project started simple but, hey why doing this simple when I can do it much more complex? :) So I used a microcontroller in place of a single relay to manage all the cool features this remotely controlled safety socket sports. A blinking pilot light indicates when the socket is on, an...
How vinyl discs are made, part II: pressing music with silver
zhlédnutí 559Před 7 měsíci
In this second part we will see how the delicate lacquer disc is transformed to be used to mass produce vinyl discs. In the first part of this two parts video, we've seen how music is mechanically machined into a lacquer disc using a very sophisticated lathe. If you missed that part, I recommend you to pause and go to watch that first following this link: czcams.com/video/kViGfE9-f44/video.html...
How vinyl discs are made, part I: cutting music on a lathe
zhlédnutí 1,4KPřed 7 měsíci
Discover the art of making #vinyl discs. In spite of digital encoded music, vinyl #records are still loved by many people. Making a vinyl record is a sort of art that blends with both electronic and mechanical technology to store sound mechanically. A fascinating story that will make you fall in love with these old media. This is the first part of two parts video. The second part is available a...
Is making a luminaire a nonsense DIY?
zhlédnutí 910Před 7 měsíci
Making a luminaire is rather a nonsense but it could make sense if seen under the prospect of art and craft expression. This is why I went into this build, using common materials that you can buy at any hardware store and household store. I used four nice plastic bowls cone trunk shaped, a copper pipe, some copper fixtures, four metal lamp sockets, and some more recycled material that I had at ...
What's inside an encoder and how it works? | electronics automation
zhlédnutí 4,3KPřed rokem
Encoders are widely used in machines tool and robots to provide positional information for the CNC. But what's inside an encoder? Are you curious to see it? Encoders are important devices used in machines, robots, vehicles, laboratory instrumentations and more, to gauge linear or angular positions. In this video a couple of encoders are opened to see what's inside, and learn how they work. Enco...
Learn the PID control in 12 minutes | electronics
zhlédnutí 2,5KPřed rokem
From washing machines to CNC axes the PID control is a fundamental part of all controlled systems. The Proportional Integral Derivative provides tight control loop and stability. In this video you will learn why we do use PID controls, what they are and how they works. Also as a bonus you will see a conceptual electronic schematic of a possible implementation of a #PID control. Also watch this ...
You won't believe what can be reclaimed from old equipments
zhlédnutí 964Před rokem
You can find a trove in equipments that are destined to the dumpster. Not only in useful and sometimes valuable parts but also by learning. Dismantling a machine or another device opens up information about the engineering choices behind the design of the apparatus. In this case the protection against voltage surges from EMC or induced by EMP (discussed in a previous video, link to the video be...
An #electromagnetic pulse may ruins your day: can your #electronicproject withstand it?
zhlédnutí 582Před rokem
Electro Magnetic Pulses, or EMP, are powerful pulses of energy that come from several sources and could harm electronic circuits and equipments. We will explore what EMP are, where they come from, and how to protect your circuit from them. #Electromagnetic pulses, or #EMP for short, can be a source of serious problems in eletronic equipments. While the most "spectacular" EMP comes from the deto...
DIY Active Differential Probe for your oscilloscope | Do-it-yourself electronics
zhlédnutí 13KPřed rokem
An active #differential #probe designed for the measurement and visualization of waveforms of mains voltage (or at mains' voltage level) on a common #oscilloscope without running the risk of frying the scope, the probe, or worst yourself! In a previous video (here: czcams.com/video/XGW_aqE4PVc/video.html) I've showcased a passive probe, unlike that one this active probe uses only one input chan...
Easy DIY passive #probe to measure #mains with the #oscilloscope
zhlédnutí 9KPřed rokem
Do you have to measure mains voltage waveform just once in your whole life? Differential probes are too expensive? Here it is a simple, cheap, DIY solution. CAUTION: Working on mains voltage is dangerous, you MUST know what you do. Directly using the probes of the oscilloscope to measure the mains is hazardous, it could lead to from destroying your probes to melting the traces of the PCB inside...
Buck Converters tip and tricks - Electronics
zhlédnutí 1KPřed rokem
Buck converters have interesting characteristics but they could be also a source of troubles for electronic designers. Despite their high efficiency and the possibility of bidirectional power management, buck converters pose challenges because of the switching technique upon which they are based. But don't be afraid, in this video I provide some tips and tricks to avoid common pitfalls, besides...
Easy to make portable metal sheet braker bender
zhlédnutí 1,6KPřed rokem
Easy to make portable metal sheet braker bender
How to make experimental circuit boards
zhlédnutí 1,7KPřed 2 lety
How to make experimental circuit boards
Understanding Voltage Regulators | electronics
zhlédnutí 1,7KPřed 2 lety
Understanding Voltage Regulators | electronics
5 things to know about #Conparators Vs #OPAMP - #electronics
zhlédnutí 792Před 2 lety
5 things to know about #Conparators Vs #OPAMP - #electronics
Fighting spurious #oscillations in #operationalamplifier - #electronics
zhlédnutí 956Před 2 lety
Fighting spurious #oscillations in #operationalamplifier - #electronics
Sawtooth Generator for your Electronics lab feat. Current Source and Comparator
zhlédnutí 1,5KPřed 2 lety
Sawtooth Generator for your Electronics lab feat. Current Source and Comparator
Automatic Gain Control with your own LDR #electronics
zhlédnutí 6KPřed 2 lety
Automatic Gain Control with your own LDR #electronics
Triangle to sine with a #wave-shaper #electronic #circuit
zhlédnutí 6KPřed 2 lety
Triangle to sine with a #wave-shaper #electronic #circuit
A Voltage Controlled Oscillator for your lab #electronics #VFO
zhlédnutí 2,3KPřed 2 lety
A Voltage Controlled Oscillator for your lab #electronics #VFO
Experiment: is that metallic shade iron? (quickvideo)
zhlédnutí 493Před 2 lety
Experiment: is that metallic shade iron? (quickvideo)
Rust removal & protection with a reinvented old recipe
zhlédnutí 2,3KPřed 2 lety
Rust removal & protection with a reinvented old recipe
DIY composite pulley for the home made lathe [part 11]
zhlédnutí 13KPřed 2 lety
DIY composite pulley for the home made lathe [part 11]
Multimeter or oscilloscope? Mistakes to avoid before you buy. Hands-on electronics #2
zhlédnutí 3,8KPřed 2 lety
Multimeter or oscilloscope? Mistakes to avoid before you buy. Hands-on electronics #2
Don't be fooled with DIY lathes: the toolpost - DIY mini lathe part 10
zhlédnutí 17KPřed 2 lety
Don't be fooled with DIY lathes: the toolpost - DIY mini lathe part 10
DIY linear scriber you can make for free out of metal waste
zhlédnutí 4,2KPřed 2 lety
DIY linear scriber you can make for free out of metal waste
I got a faster mcu and for DC readings, low pass IIR was a no match (vs averaging). Only a tip for the next video.:-).
Voltafe regulators are great lets remember all voltage regulators have an error amplifier. Therefore you end up with a amplifier modulating tje load amplifier. So. Not perfect. For hi quality audio ypu must be careful with voltage regulators to keep them from modulating your amplification device
Thank you for the education. It is nice to see the trouble shooting approach. Nicely done.
Did you ever finish this lathe?
Gracias por el video,me da buenas ideas para realizar el mío... Saludos desde Argentina.....
@@luisalfredo5885 saludos desde Alpes, EU
Maybe this could be built on a sine bar base, to make calibration simple?
what is the max frequency can be read by this probe?
@@endremurti as you can read from the related article on my website I haven't done a proper bandwidth test but using a known frequency and amplitude of 1 meg I've been able to see no attenuation.
@@AccidentalScience oke 1mhz is more than enough, i need some of such device to develop my smps
@@endremurti actually is not that much if you plan to use it on an SMPS. You'd be better off adding the capacitive compensation provided you purchase the right capacitors (you need almost 1000v to be safe) made in EU or in US.
@@AccidentalScienceok ,you mean like atc capacitor for high power rf?
By the way thanks for share this project ⚡️
Great material, thank you so much!!
Great job, thank you for clarifying a very needed topic.
Hi... ¿How can I find information about that oscillator and pulse generator? Now I know I can simulate it in a computer program or built mine in house but in both cases if I want to model it mathematically I would have to measure... In resume: could somebody tell me where can I see theory about oscillator and pulse generator?
While I don't have a specific answer right now, a good starting point is to understand the theory of operation. Some more information is available on the relative page on my website, but there is literature (I think it should be available online) that covers oscillators and other signal manipulation through logic gates. I have an old book titled "Elettronica Digitale" (don't remember the publisher though and AFAIK it's only in Italian) that provides good coverage on the topic. Maybe searching for a similar title you may find something.
@@AccidentalScience Yeah... Thnx for your answer... Another question I have is: Did you review your book for design that circuit? I can understand how the oscillator part works by seeing connections in NAND, resistors and capacitor because it is the first part but I can understand pulse generator and the other parts by simple inspection 😓
hi there, the motor power suplly is continuous or pulse?
I don't remember but if it was a DC motor then it is *not* pulsating.
2:45 3 spacial dimensions. That's it.
Coooool
I really like it when someone can speak really good english, but get a few little words wrong like cirquit 😁👍 . . Nice video though... ive been wanting to try electroplating for ages but cant afford the chemicals
🎉❤
is it possible to do the same thing but with an analogic tester?
It's much harder.
"It's really out of square...shit...." I can relate with this phrase lol
Very good video! Thanks for sharing ❤
Very clear explanation, thank you.
Thank you.
This video is a great pass to Delta Sigma Converters
Great :) Thanks for commenting.
Very awesome explanation, thank you.
Thank you.
I initially thought about making a sensor like this, but as a level transmitter for my arduino. I planned on using a 555 in a monostable configuration in order to read its actual capacitance value. Then after would have to calibrate it in order to correlate its level to its reading. [Edit] I shared your video to GreatScott. He had a project recently to monitor a water tank level and used an ultrasound sensor in the end. But I wanted him to be aware of your creation :)
Do you by chance have plans or 3d model for this build?
Sorry, no at the moment. I have 2d drawings only and some of them need to be redrawn to include corrections.
@@AccidentalScience ok. Loved the entire build process. Thinking if building a metal lathe myself. Would you say it was cheaper than just buying a metal lathe?
@@Demon_Mx2277 no it's not. But it could be more precise (that depends on your skills and equipment) and could better fit your needs . Certainly you get the chance to learn a lot in the process.
gorgeous.
i like your sense of humor.
@@sergionowa thanks mate.
Cool job❤
YOU SHOULD LOOK CLOSE AT THE BOARD. THEN USE AN STICK CHECK WHAT IS LOOSE.
That was on point, thanks.
Can you send me your blue Prince
And a material list
Non c'è una versione in italiano?
Sorry at the moment it's not available. Maybe I'll do something sooner or later. Mi dispiace al momento non disponibile. Forse fraro' qualche cosa presto o tardi.
Very nice video, but I have to disagree with you on your shift/offset method. The same curvature could exist with each shift.
Well done ,
In the first version it may be intersting to change the BC337 for an opamp led drive. The leds goes in the feedback loop of one non inverting opamp. With this configuration the leds turns on gradually from zero.
the reason you have to turn down your inverter is because it has to sync to the sine wave on the grid and with grid down it has no way to sync
16:40 - I think you came up with quite an elegant solution for the problem. It would greatly reduce the possible errors in the flat surface and the results would be more than suitable for a lathe or similar project.
So your this velog has been on diagrams of highspeed Sine Wave inverters design and working. Thank you.
A hand drawn PCB. It`s been a long time, and that drew some memories. Thank you. Also, this was a good reminder that you can still build something quickly and with components out of the jar.
Exactly you got the point. 💙 Thanks for commenting and greetings from the Alps.
Wonder how to do this same thing BUT without schematic? Watch this video too: czcams.com/video/yjxuMwLN7zI/video.html
Circuit is pronounced sir-kit, not sir-ku-it.
Thank you for sharing all these information with us
Thank you, good job!
Glad it was helpful!
So, my idea to use two orbital sander where two plates attached together to the sander might be plausible.🤔
so basically make a differential probe instead of buying one hehe
How can I remove the speed on it ?
What do you mean?
I have one like the one you have but the one I have doesn't have braces
Burnt board is beyond repair. Indian serviceman: hold my beer!
Woao!!! What a beautiful job. Congratulations Man!!!
Someone stealing electricity the sneaky way “wave clipping”.
Ugh - the awful cringe thumbnails have invaded even the electronics channels. It is just so gross, have dignity man.
I acknowledge your concern. It was meant as kinda joke, but I overestimated my ability to communicate it was a joke. I apologize. So I have replaced the thumbnail with something that I hope is better both at attracting people and to be felt less "awful cringe". Thanks for the feedback.
1:00 Broken solder joint .... or cracked circuit board.
If those were RIFA capacitors, you better replace them. They tend to self-combust after 30 years or so.
Hi Bob, good catch!