Видео

Spent less than 5 minutes in ocean on Kaui, Hawaii thinking that it was waterproof to a reasonable depth! Bad move on my part! Very salty water got in...now it's toast! Wife warned me...I didn't listen!

Nice 🙂 Waiting for the simulation video 😊❤

My station from 40 years ago used the same circuit, but the digital voltmeter used two ICs, One the ADC and another was the BCD to 7-segment decoder/demultiplexer. It was, and still is, an analogue device at its heart...

All these chinesium companies change their name every few years to avoid honoring warranties. they all sell the same exact products and act as cutouts.

👍 great job 🎉

Good refresher, very nice explanations

Keeping Notepad++ alive. LOL. After 40+ years of writing code, my old eyes can't do "light mode" anymore. Dark mode everything FTW. Thanks for the excellent video!

Took my charger 5 to the pool for the first time ever about 3 weeks ago, first time ever. The pool isn't even 2m and I only swam surface level. When I got home the screen started blinking white. So yep, they are such a failure when it comes to water. Thankfully my warranty covered it and I got a refurbished one from them.

Excellent Job. Thanks! I am a Principal FPGA designer/digital EE. But, I was just forced onto a project where I needed to miraculously become an Analog EE. This helped out immensely for the project. Thanks.

My Fitbit Charge 5 also got slightly wet while submerged in water (hot tub) for about a couple of minutes. I had it for 1 year-10 months. Working with customer service was frustrating. I never received the email they were supposed to send me to offer a discount on a future purchase.

Thank you sir! Your videos have made learning CircuitMaker so much easier - I was struggling until I found your tutorials - I really do appreciate all the effort you have put into your videos.

I also had my fitbit charge 5 for 1 year 6 months. After this time period, I thought it would work in a pool. I found out after my short time in the water, that the watch died. I did everything to dry it out - Used a rice bag to dry it out with no luck for 2 days. I tried to charge it and no screen picture. After waiting several more days and caller the help center and listening to many videos on how to dry it out. I decided then to try to open it and dry it out. Not a good idea. It took several days to just try to open the screen and still didn't work at all. Now I just have a broken watch in pieces. You are correct. NEVER EVER PUT A FITBIT IN WATER. Yet I also read a fitbit life is about 2 years.

Your assessment is 100 percent correct! Two fit bit charge 5 models in my family. Never been used for swimming. Both got wet when they were submerged in a foot of water for a few seconds. Both failed due to water entering the units. Thanks for the video. I am going to take apart the one that just failed and look inside.

Some of the "crusty stuff" youre seeing is flux residue from the soldering process, which is normal, but I agree that the stuff not on a solder joint is likely corrosion. Here to say me too, mine just failed 2 weeks out of warranty. I've never taken it in a pool. Saw moisture in the little sensor windows after it started boot-looping. Other than that it was a great device in life. RIP.

Happened to my wifes, she was just floating in a lazy river for one lap before she noticed it doing funky stuff. Unacceptable Fitbit/Google.

HSPICE came from MetaSoft. The founders are Hailey brothers (hence the letter "H"). Meta was acquired by Avanti, who later bought by Synopsys. Spectre was developed by Ken Kundert from Cadence. There are several other commercial circuit simulators in the market. But you are right, let's focus on the free and open source SPICE simulators for education and self-learning.

Thanks for including QSPICE in this comparison!

I want something that runs unit tests in GoogleTest against a spice simulator. I have realized though that QSpice needs to be the thing that "invokes" the C++, but I would like it the other way around. I want GTest to be able to load my test fixture (whatever simulated hardware that looks like in spice) and connect it to my source code and run scripted simulations. So far I have not been able to find anything like what I want. Can this do that? Does QSpice have a command line interface?

Michael Thomas Engelhardt was born in June 1953 so ... He's ... 71 years old !!! Well well

Awesome tutorial !.....cheers.

Very true. Same thing happened to my Charge 5. It's not water resistant at all. (((

Thank you for making this, The small details you mention saves my day, Again thanks ........

Same just happened to me it's about 10 months old I swam with it many times prior to this incident blindly believing that is water resistant however it leaked and now it's not working on the bottom sensor screen I can see a significant amount of water droplets so I would say a big amount of water got in how is that even possible i was in a shallow 4' deep pool. Anyway I was lucky it's still under warranty but once I get new one no more swimming with it quite disappointed about quality of it they claim it's water resistant it clearly isn't.

Thank you for this video ! No online DRC ? Good to know

Can you please pinpoint (with a time code) where you answer the title question: "the *best free* simulator"?

What would need to change if the load resistance is much lower? For example, a speaker that is only 5 ohms. Great video!

I’ve also had the same happen to me in very similar circumstances. About to receive the 2nd replacement (within warranty). Was wondering if I can better the factory waterproofing in any way. I can take it apart and put it back together but wondering where the water gets in from in the first place. I took apart the failed units and couldn’t tell.

Thanks a lot! Explained very well and not too long or too short.

can you design pcb from this circuit?

This is very helpful to a complete noob to electronics like myself. Thanks for sharing this!

Just back from the swimming pool and my Fitbit charge 5 isn't working anymore. I guess it's not waterproof!

Great little tutorial. Coming from cad this is an excellent length.

I can confirm that this happened to me too. My Charge 5 failed on me after using it in the shower for 3 times. The screen is now flickering yellow and unresponsive. It just crossed its warranty last month and now it's dead. So much for your waterproof claim, Fitbit.

Excellent intro. However, as of 2/27/24, Qorvo is not responding to download requests.

My fitbit got splashed by a wave in the ocean and hasnt worked since. I found grains of sand under the heart rate part of the watch under the little stretchy plastic barrier. I think thats how the water got in. Before that I swam with it in a pool all summer and it was fine.

Hi, Great video!! Do you know how to add a specific transistor if it is not in the list? I am trying to simulate a circuit using 2n3904 Transistor.

Hey mate, I’m using circuit maker for the first time and following your tutorial has been great. I’m having a problem though. A lot of the components I need aren’t in the list, so I have made my own, it works well on the schematic but when I try to update pcb document it says there are no differences even though the pcb is blank

Hi, new subscriber here! It will be great if you can make a tutorial course with the QSpice, and a little bit of programming with C++, much appreciated! Thanks!

When you import a model, can you save it in the QSpice library?

LTSpice is free, too...

i like the argument names when writing the pulse, i can never remember the order

Thanks for the post. I wore my charge 5 in the ocean in Hawaii last week and it hasn't worked since. Put it in a bag of rice for a couple of days when we got home. Still nothing. I'm researching warranty information now...

Do you know how I can set up the software so I can print a image of the circuit board to size? I would like to make the PCB at home instead of sending it out to a board house.

Seems like yet another simulator designed for more advanced users I'll try it out at some stage but unlikely i'll give up my current easy to use extensive GUI simulator Edit; I'm slow. Just realised this is Windoze. I'll needto check for a linux release, try in wine or a vm

hoping they do a Mac port.

So does that mean I can simulate any processor written in "C++" ????

My Charge 5 also died after cleaning it under the tap. These devices clearly are not water resistant to 50m. Mine isn't under warranty either.

Any SPICE that only runs on Windows cannot be the best. It is a toy, a game, not a professional tool. No good software developer writes a modern application to only run on one platform - it is too easy to use the toolkits to provide cross platform UIs and architectures. Simulation in a professional environment properly integrates within the development flow, allowing for automation and master data management. Qorvo should have had this mindset from the outset of this effort, and that they do not casts shade upon their technical and operational abilities as a company, and if they don’t know how a modern development flow should work, their components will likely reflect their haphazard and amateurish methods.

LTSpice have a way better interface

Terrible quality product. My wife has had 2 replacements within warranty, the first after a swim, the second not. I just got a warranty replacement after swimming for 5 minutes. Her father also had a warranty replacement, no swimming. Will never jug a fitbit again