I'm still trying to figure out what to do with this channel. Making something with this much animation and synchronized video clips took ages but I'm happy with how it turned out. Please let me know if this is interesting, if it's too much (or too little!) detail, or what sorts of things you might be interested in hearing about from me. Thanks!

I love engineers because theyll legitimately design a whole sensor from scratch to turn the machine on and off instead of just securely mounting the device to something heavy on concrete

The weight, the platform, the knobs, the LED and the proper connectors.The attention to doing things properly is really amazing. I think this detector alone could be a standalone part/product.

Now this is a real-world problem solving with better explanation than a college

I literally never write comments but you deserve some praise, I watched through the ENTIRE thing and you made all of your points so abundantly clear it was INSANE. I was in shock when I scrolled down to see, what, 4 comments and 1k subscribers? I wish you the best! Please, more little easily integrable projects like this

As an electrical engineer, this video does a tremendous job showing off various aspects of the craft in an easy to follow format. Amazing work!

Being fresh from all those electronics class and watch a video that covers all these subjects feel like a joy to see them in practice in such a simple and problem solving way.

Honest to god, this video has gave me back the courage to continue my studies as an EE. Really amazing video, please keep up the good work, KZfaq needs more channels like this!

Put the whole contraption on a spring uncoupling table. A heavy slab floating over the table on some soft springs

GREAT VIDEO!!! When I saw the title, my first thought was, He's gonna use an accelerometer, secondly, a piezo device. The video was of MUCH higher quality than I expected...I related to it instantly from decades of design and PCB-making. The video had much more value, in addition to design of a device. THANKS MUCH!!!....thumbs up and a sub. --dalE

For a channel with only 5 videos, your production quality and cadence were great. It feels like the result of many years of experience producing educational content. Keep up the good work and best of luck to you!

This is one of the best made DIY electronics videos I have seen. Dude, you have got the talent for videos like this. The amount of information was not too much to get boring yet enough to keep me interested and watching. You have found a good balance - great video! Keep doing these type of videos and you WILL grow big.

As someone who is studying electrical engineering (first year) this video was sooo incredibly fun and interesting to watch. It's really satisfying to see the whole process from the idea to the finished product. And I love the intuitive problem-solution based approach to explaining the electronics! Thanks a lot!

This is probably the best electronics video I've ever seen. As a student in electronic engineering it always give me so much anxiety picking parts, the part where you explain how to select an OP Amp is outstanding!

I am a student studying electronics, this video really helpful. Please, make more videos like this

The amount of followers and subs does not make justice to this channel's quality, nor the engineering behind it. Simply put: Brilliant! Writing to hopefully bump something in the algorythm.

You did an amazing job explaining each step of the process of designing and problem solving. You must be a teacher. I particularly liked the diagram in the upper right that kept growing as you addressed each incremental challenge. Great job! I would watch more.

This is a fantastic and well-thought-out project. I like that you explained your whole thought process instead of dumping SMD parts on board without explaining why, as most electronic channels do. This was really refreshing. Please keep making more of these!

This video is a masterclass in engineering education. Your pinned comment mentions that the animations and synchronized video clips took a while, but I think it was absolutely worth it. Seeing the signal conditioning happening live over 4 scope traces synced with the video really drove home the principles you explained. Awesome video!

I love how you actually highlight, color, and label the various parts of the circuits to explain easily why they exist in teh circuit at all. this is the superior method of teaching circuits compared to anything I've seen thus far. Please keep doing this. It will prove incredibly valuable to people learning.

I work as a full time EE and I LOVE this so much. You solve the problem in a real a straightforward way while reminding us we have to use real world parts that do real world things. Can’t wait for more content!

Great video format, seeing the thought process behind circuit design is always enjoyable and good editing made it that much better. It also makes it easy to comment about where I'd use a different approach, which is at 7:30 - if the problem is that your signal goes below ground by a bit too much, just shift it - still have the op amp's Vee connected to your power ground, but add a forward biased diode between "signal ground" and real ground, use that for everything up to and including the op amp - piezo, resistor, two diodes, cap, and potentiometer (leave the digital part connected to real ground). A resistor is also needed to bias that offset diode, from the "signal ground" to Vcc, and maybe a capacitor across the diode for decoupling, so three additional components in total. Again, it's just a different approach, not strictly better - you trade off the lower component count of your solution for the ability to use a jellybean op amp. I see that someone in the comments already suggested biasing the piezo to half-rail using a buffered resistor divider, but not only do you need a dual op amp then, your zero vibration output level is also Vcc/2, which the SN74LVC1G123 won't really consider a proper logic low, nor should it. With my solution it's around 0.6V, well within the allowable range (0.8V for 3.0V < Vcc < 3.6V and 0.3*Vcc for 4.5V < Vcc < 5.5V). Again, great video, I subscribed without a second thought!

Seeing the actual electric signals and all the circuit diagrams make it so much interesting and cool to watch. Please make more of these types of videos.

I'm absolutely in love with how precise and compact everything you did was, I've got literally no experience with anything you were doing here and I was able to understand every word.

As someone who's getting into circuit / PCB design in the past half a year, I appreciate this video so much! You rarely see someone explain the real world problems you encountered or anticipated AND their solutions with such clarity. Thank you!

Amazing sensitivity outta bone stock components, nice. I also quickly discovered how many ways there are to solve the same problem! The 'beyond negative' rail problem could have been avoided by simply having the non-signal leg of the piezo resting on a vcc-to-gnd resistive divider, essentially lifting it 1V or so above gnd, that would enable more op-amps to be used, you will also approach the middle of the op-amp work range for better everything regarding op-amp'ery. Still it was a great experience following your train of thoughts.

Man, I feel like you would be a great professor

Best electronics video I saw after the Ben Eater's 👍, the logical reasoning and the thought process goes into the breadboard is simply gorgeous.

I watch a lot of videos of people making cool projects, but I rarely feel the need to comment. This was awesome start to finish.

Can I give you a high five? There's so much here that I'm learning and still trying to unpack!

This is an excellent video about that cool little circuit you designed! Very nice to see the design process from an idea to a finished board! Would also be cool to learn more about your film scanner!

I can’t remember the last time I learned this much in a KZfaq video. So helpful!

The best videos spark ideas and understanding beyond what the video is about, and after this one my head is buzzing with possibilities. Amazing stuff! 👍🐻

Wow this was exceptionally well done! Awesome job putting this together. Your content is great.

this is a really nice project and a really nice circuit. I have one thing to add if one wanted both the negative and positive peaks of the piezo you could ac couple it into the opamp with a series capacitor and two resistors going to positive and ground rails to dc bias the signal. As you said though not super necessary for this project but it would allow a wider selection of opamps.

you make circuit design sound way less scary, the video is really good, thanks ! Now I want the desk toy...

Please, more of this - Embedded systems (hardware especially) needs more love, both in the field- as well as at home ;) Was a sweet watch, signed myself up for more. Thank you from NLD - Jr. embedded systems engineer

Hey Nicholas! First - thank you, thank you, thank you for such am unbelievably detailed and thought-out video. I went back over this video three times, and I can't believe how much information you packed into less than a couple dozen minutes. Then I went back through your other four, and I was amazed at how succinct and effective you were at explaining each of your projects. You remind me of another KZfaqr I found 8 years ago, who uplifted my entire career path, just by explaining my interests in such an effective manner. Second - you mention "I'm still trying to figure out what to do with this channel." As someone who is walking down the learning path of becoming a "maker", I can say that you are exactly the kind of person who I would like to learn from. Your videos every couple of years will be amazing to learn from, but I feel that one really fruitful path would be to get yourself and your thoughts out there at a more regular cadence. Even if it's just a video of your thoughts about how to tackle a project, I'm sure every one of your viewers would love to learn from how you think and how you tackle the work that you do. Just a few video topics that I would love and that come to mind are: "Here is my current electronics & 3D printing workshop, and here are the things that I am tinkering with", "Here is a face-to-face chat / Q&A of this part of my project (e.x. why you scanned each film frame with RGB, how you set up your film pulley system, the work you did on the camera aperture devices, how you set up your extruded aluminum framing, etc.)", "Here are some things I've realized could be done, but I that I don't have time to complete." I feel that just by hearing more of your day-to-day thought process, a lot of people like me can learn more in their path towards understanding 3D printing and electronics. Third - thank you, again. You have exactly the kind of experience and teaching capacity that can help others learn well. I really, really appreciate all the work that you put into each and every one of your videos.

Honestly Nicholas, I'm completely in the dark about anything electro engineering or computing related. Yet I enjoyed this video a lot, feels like I might've even learned something. Thanks!

Only 3k subs? I thought I was watching like a 400k channel. This is a really good, very entertaining, high-quality video. It really shows you've put a lot of effort into it. You got a new sub for sure and I'm looking forward for more.

This is simply awesome. This is the most detailed circuit explanation I have ever seen.

You have a great talent for didactics - and a great voice to convey it all. Absolutely bewildering to see only like 3.5k subs...

Like everyone is saying, this is a standout video. Real Ben Eater vibes hahaha. Continue educating man, this is terrific

How neat ! I made a vibration sensor also, but not nearly as sensitive as yours. It is just a 3 cm bare wire in parallel with a narrow strip of copper board, with the wire running approximately 0.5 cm away from the board. It works very nicely with a PIC microcontroller being woken from sleep with the change on the input pin. Thank you for showing us your design !

This is an absolutely perfect example of top-tier educational videomaking. Thanks for sharing!

Awesome video, clean concise walkthrough of all challenges,ideas.

Absolutely great. I took a circuits course and this gives me a very good example of putting an actual component together. Great video as well. Very concise. Thanks.

I'm 1.5 years deep into my Electrical Engineering Bachelor's and this video has given me a more intuitive understanding of how circuit components work than any of my courses lol

I love when people share their designs just because someone might need it, humanity feels good again

Explanations are really good. I loved that you went through all steps describing issues you encountered. Really nice video.

Love the detail of rounded corners on the PCB!

As a vibration engineer who relies on piezoelectric accelerometers while knowing nothing about electronics, seeing what's involved in making the black box people call "signal conditioning" is really educational! Thanks!

This video was easy to follow despite never touching circuits in my life really hope you continue this channel. Glad subscribing because of that stl file conversion video has paid off

this is super awesome. ive always wanted to see the electrical design process and the transformation from ideal to real world, this explains everything very succinctly.

What a video. I genuinely wish this was part of every circuits class. Turning theory into practice and in such an easy to understand format. Wow. What a great video. I'm definitely sharing this!

This is such a cool video! Having a niche problem and showing how it can be solved with basic circuit skills

I was just about to go to bed when youtube recommended this video, I was just gonna watch the start to see what it was about but the excellent structure, narration and production quality had me glued me to the screen through to the end. Great job, earned a subscribe

Must be an educator, this video is just too good. Hope we get to see more of this electronics projects. Definetly subbing, thanks.

I don't comment on videos often, but this one deserves the praise! Thank you for the thorough explanations at every step. One of the best project videos I've seen in a while. Really hope to see more from you in the future.

Lovely video. Amazing to see the step by step engineering of this thing, and such an amazing end design! You made an outstanding work!

It's inspiring to see such creativity in problem-solving, opting to craft a unique solution rather than relying on off-the-shelf components like accelerometers. Subscription earned.

This video is incredibly well made and you very skillfully pieced together the process and kept me hopelessly engaged throughout the video! Thank you for the content and I hope to see more videos from you in the future!

Just enough motivation to start my own engineering channel, great!

Great video! I am starting a project very soon, where I need to detect when a valve starts to oscillate, and this video gave me some good information about the problems I potentially will run into.

This video is a wonderful tutorial for electrical engineers everything in it RESPECT

Loved the way you stepped through your design process. Great work, hope the scans turn out great!

Nice video mate. This was very interesting - the breakdown of the full engineering process and explaining each part of the circuit as it popped into relevance was a great learning experience.

Wow, I learned so much from this video. Thank you for posting!

I don't have a need for one of these, but there are a few bits you used that will help me out with a hardware design. Thank you! Also, I really like how cleanly this came out, very nice design.

This video is amazing. So good to see you come back to this channel. Looking forward to more in the future

Fascinating video! I hope you'll continue making them.

You have an incredible talent for clearly presenting information

awesome work, explaining, building, editing - perfect

Great inspiration! The detailed engineering process and clear explanations are outstanding examples of how to do it right!

The final product is beautiful!

This was fascinating! As someone studying this subject in college I love to see the flexibility all this knowledge gives you to truly create from scratch a solution to a problem you can call your own

this was an amazing video! thanks for your time and diligence. ive never seen how SMD's are solder to board in a DIY way so that clip of that was awesome and a great teaching moment

Excellent visuals, well executed and explained. Thank you for this level of production.

Hey Nicholas! Amazing work! This is the first video I have I seen of yours and learned a lot from this.

To avoid the op amp issues, I’d have tied the piezo to Vcc/2 instead of ground. Use a dual op-amp IC and you get to buffer a 50/50 voltage divider for free with your spare op-amp. Thanks to the signal being nowhere near the rails, you could get away with a non-rrio op-amp like an LM358, though having a wider output range would be handy. Being able to use 3.3V on all your parts would also be pretty handy. As for the 555, I believe you can make both conventional and retriggerable monostable circuits, depending on whether you use the trigger/threshold pins, or whether you use reset as the input instead. Putting a Schmitt buffer between the amplifier and the latch might be a nice feature, that’s also something you can make with a spare op-amp if it can handle being used with positive feedback.

Great video. Explains what each thing does in a clear and understandable manner.

Realy great Video! I love the animation and the narration style a lot. And I love the internet for giving creators the opportunity to share such videos.

Interesting project! I love the way you explained every single decision you made. Knowledge has been shared!

This is an incredible video and you made the design process really clear and accessible.

Im an ME guy. Electronics and circuits are like magice to me. This was a great vid. Koodos!

As someone studing all this electronic problem and component, this made my day

Wow, the quality of this video is phenomenal! Everything was explained perfectly. Definitely curious what this channel could bring next

I like your editing and storytelling style. Keep it coming man!

this is one of the best videos on electronics design I've seen

Very well explained... This design can help me to realize a MIDI trigger that I had in mind.

Awesome video! Wish you can continue to share your curent project to the world!

Great video! I found your method of introducing each hurdle you encountered, describing it, and then working out the solution to be very informative and also a bit inspiring as well. I have subscribed 👍

As an electronic engineering student Im so excited to know about the existence of this channel

I had a family member doing old film scanning recently and this is exactly what they needed! Love the walk through of the design process and it looks like it turned out great

First video of yours I've seen, and you earned yourself an immediate sub, sir.

This is incredible. I loved every minute of this video.

Very cool project, and exceptionally clear and interesting explanations!

Very nicely done! And, thank you for sharing the design with us 😊

Love the step through of the engineering process

I don't even know what I'm doing here because this isn't useful for me right now, but I love it!