EEVblog

[@flymypg]

I once worked at a small (and extremely ambitious) aviation instrument company, and most of our toughest problems weren't on the development side, but were on the test side. For every hour spent developing hardware and software, three hours were spent in system testing. And that excludes component-level testing for hardware and software, which is part of development. Beyond that, an equal amount of testing is needed for the separate certification effort, where the testing is focused on more than just the instrument, but on its integration with the aircraft as a whole (including Type Certification). If you've ever wondered why FAA-certified flight instruments costs 10x-100x the cost of uncertified gear, that's the reason: 90%-99% of the cost is in the testing and certification. It's not just the paperwork (which is merely the proof it was done): It's the endless hours of patient and thorough testing and analysis, and the racks of equipment needed to make that happen (which also needs to be tested and calibrated). Every engineer was also expected to be a testing expert, and (unlike Boeing) we worked closely with our DERs to ensure we were doing all the right things the right way. One of the greatest difficulties was simulating real-world inputs, and we put extensive effort into developing our test infrastructure. Some signals could be modeled mathematically and simulated in software, but others had to start from recordings of real-world systems in flight. As Rod explained so well, there is a vast multitude of ways signals are encoded within aircraft (in both the analog and digital domains) using a chaotic mess of "unstandardized standards", many examples of which exist merely to link two or three specific instruments. Even things one would expect to be "bog standard", such as GNSS links, have a perverse plethora of permutations. So, not surprisingly, there is a significant market for test equipment able to generate and receive/analyze these specialized signals. Many of these are no longer made, others are built-to-order at exorbitant cost, and some (a surprising number) simply don't work for their intended use. Which means we generally had to make our own simulation and acquisition equipment. We took a brute-force approach. For example, rather than directly digitize the sinusoidal multi-phase synchro/servo signals, we simply bolted high-resolution digital quadrature encoders and geared stepper motors to the shafts. We made fantastic use of Ebay to get old equipment we'd re-engineer to become test equipment. We even got some WW2-era test systems whose signaling methods are still used today! We had to verify our test systems were faithful to the real-world environment, which meant sampling real signals in flight. Being of the brute-force mindset, rather than build specialized signal recording systems, we took multi-channel GHz-bandwidth o'scopes with extremely deep trace depths into the aircraft. We also became expert at making Hall-effect sensors to non-invasively measure current-mode signals within operating aircraft. We then flew the aircraft to its limits, both in terms of maneuvers, but also the environment, including flying into storms. Of course, almost nobody would rent you their airplane for such testing. Even NASA wouldn't let us piggy-back on their storm-chaser planes. So we had to purchase, operate and maintain our own small fleet of test aircraft. Those were, by far, our most expensive pieces of test equipment! Yet another reason why FAA-certified instruments cost so much. This was for a company with under 100 employees, including the staff for our in-house manufacturing lines. When we took our cockpit instruments and sensors to trade shows, we also took some of our simulator equipment to drive them. At one very large aviation trade show we received many more inquiries about our simulator equipment than for our flight instruments! Those requests came from other instrument makers, and we realized we had a significant competitive advantage in our test systems, else they wouldn't have asked about them. From then on, our test gear was kept in locked and sealed racks that were never opened in the presence of others. I'm wondering if Rod and Simulator Solutions have explored the aircraft instrument test market? Unlike the flight instruments themselves, the test equipment hardware/software is not FAA-certified at all, other than ensuring the signals they generate meet the applicable aviation signal standards (more of a specialized calibration/verification than a certification), and that the test equipment will not damage the instruments to which they are connected (per industry-standard safety and EMI/EMC specs).

[@EEVblog]

I've been there!

[@k1mgy]

Instrumentation test is a particular application of engineering I would enjoy learning more about. Perhaps Dave can take us into this aspect in some depth? 1,000 questions including why are the test systems not under FAA type certification? It seems that if there's a flaw in the test equipment, problems with the instrument under test could go undetected. So, how is this mitigated?

[@davidpalmer9780]

I enjoyed reading this post as much as I did watching this video.

[@mecee4516]

Thank you Bob C, the aviation instrumentation verification test world is fascinating!

[@Deipnosophist_the_Gastronomer]

Great post! Thank you .

[@spyderMN]

I spent 20 years as a software engineer in the simulation industry (I am intimately familiar with the AH-64D helicopter sims the US, UK and other govt/military use as well as the F35). I primary worked in the visual system side, but also worked with the hardware and interface side of things. It is super impressive to see a smaller group of individuals take a project like this on. I can tell you that the civil aviation simulators had huge budgets with 100s if not a thousand or more people working to develop these solutions. Will be fun to see how this all turns out when finished.

[@spencebarton2947]

I'm a retired United Airlines Pilot and definitely spent many hours in that cockpit and simulators at United's training center which were indistinguishable from the real thing. It's sad to lean that that beautiful airplane was cut up. BUT... it's a good use of surplus parts. Boeing never "over-engineered" anything. They used appropriate redundancy, strength and reliability. Until recently the greatest airplane manufacturer, ever.

[@Valenorious]

Every pound counts it's weight in fuel.

[@andymouse]

"what constitutes an Arduino ?" the guy sounded a bit embarrassed...he didn't need to be, I've heard it alot from people who have large super complicated projects, and when you say " so it's got an arduino in it ?" they rapidly tell you about their firmware and how much its NOT Arduino...I think its super cool that it has off the shelf jelly bean MCU's with now almost de facto footprints at its heart..go 328PB go !...It looks very much like an Arduino because it IS an Arduino !....great project and what seems like a passionate bunch! I would very much like to see more please Dave.

[@ElectraFlarefire]

Their software stack('simstack loader') is also heavily based on the Arduino IDE(Screenshots and code on their website).. But that is a good thing as the list of libraries is massive and adding more advanced and interesting hardware becomes much quicker and easier. It's the perfect platform for something that has to be as flexible and configurable as this.

[@martinda7446]

I had watched the vids on your other channel, and was blown away with the amazing engineering and effort these guys put in. Wonderful - and something I have dreamt of since I was six...Hmmmm?

[@olivialambert4124]

God I'm jealous. Some people have the most amazing setups. Combat sim pits would possibly be interesting for EEVBlog viewers too. They tend to get a bunch of real world components, but of course not every component is available and the interface to the computer is different so they have to design their own back end. I recall seeing one guy get a real RWR, essentially an electron beam display. But for some strange reason the control plates were mounted at 45 degrees, and of course didn't come with instructions for the connections, so he had to work it out and design the controller to write symbols and letters where and when the computer asked for them. It was a great read. I've spent a few thousand on my setup, but I'm not even on the board compared to what a lot of people have managed to build and the work they have done.

[@SeanDuffyProductions]

Very interesting, do you have any pictures or anything of your own setup? Is it based on a single aircraft?

[@olivialambert4124]

@@SeanDuffyProductions Its nothing particularly interesting. I wouldn't call it a pit or anything like some people have managed. Just a high end stick, throttle and pedals, TrackIR to convert head tracking to pilot movement, and some commercial grade buttons. VKB stick, Virpil throttle, MFG pedals, and buttons from the likes of Thrustmaster. Its not really about realism so much, I've got VR but I forgo it for the unrealistic TrackIR as it performs better in game. The stick is from the PAK FA, the throttle is inspired by that aircraft but also by other 4th gen aircraft and nothing like a real world stick, the pedals look like a WW2 set but are the only good performing pedals on the commercial market, and the other controllers are from assorted aircraft. I'm still in an office chair at a desk and with my mouse and keyboard to hand. I'm just lucky enough to have resources to buy my top choice of equipment and backup equipment to play the assortment of mostly western planes and helicopters in DCS flight sim. A lot of people have managed to make an actual pit at that cost, but I'm happy having an unrealistic setup, playing multiple aircraft, and having my own favourite selection of equipment and my own custom keybinds unlike the real aircraft to go with it.

[@stclairstclair]

I've never thought about traveling to Australia until I got into EEVBlog!

[@nickkapirnas]

I love these, I've seen a lot of these 1:1 scale sim cockpits and the attention to detail is astonoshing! I personally have built a 1:1 scale virtual pinball machine that's a simulator of the real thing, and though it's not quite a sim cockpit, something about recreating a real word thing as accurately as possible running a PC based sim is just awesome to me, along with how passionate people are when they do stuff like this.

[@Spookieham]

Great video Dave - can't wait for the next one! Great work by this team, very impressive. EEVblog at its best.

[@Digital-Dan]

This is the kind of thing I always wanted to know about these systems. Nice to see they're building their own version of a CAN bus. First thing like that I ever encountered was when we used a variation of Ethernet inside a Xerox copier in about 1978.

[@christopherj3367]

wow he's put a lot of work and effort into those stacks

[@Sixta16]

So basically, it is just an arduino, bunch of shift registers, bunch of random mosfets. Unprotected inputs, unprotected outputs, no controlled switching slew rates, no ESD countermeasures, no EMI compliance etc. I see a lot of work there to be done. But I stay being corrected!

[@frankbuss]

The SOT-23-3 parts might be some BAV99 or similar protection diodes for ESD, and he said that all outputs are fused. And looks like there are resistors before the gates, which would limit the slew rate (but increase the power dissipation at the MOSFET). This would help with EMI compliance as well, which they might have tested, because they are selling these things. I expected it to be more expensive, but price is only US$85: simulatorsolutions.com.au/simstack/output-board/ Pretty good for such a niche custom board with 12 bit PWM capability on each channel.

[@Sixta16]

Well, my issue is, that such designed boards may become dangerous, especially in such large installations. Unprotected outputs may start a fire (You can find a detailed photo of the PCB in question, there are no fuses or protections at all). Just plain P/N mosfet switches. Also, random ESD/surge event may cause the control system to enter unknown states, that can, within a motion-capable sim, cause serious injury to the people around. I am not telling you the board in question shall be CE or UL certified for whatever required standard, but that an industry standard and best practices shall have been used when designing them.Those SOT23 diodes mentioned are clearly just G-S protection zeners. And the PWM is very likely to be a 12bit just per an output bank, not channel-independet. That is what the Q1 and Q48 on the PCB likely does. For the money they have to work with, they at least should be able to do a proper design job.

[@davidpalmer9780]

@@Sixta16 Having used their products, I can assure you that the power outputs are fused - 3A fuses on every Output channel and 10A fuses on each Power Supply input. I should also add that every output channel is individually dimmable. I have spent hours talking with these guys about the work they have done in designing SimStack over the last 5 years. I know that they worked through many of the issues you have raised with some very experienced electrical engineers who completed the design work for them.

[@mikemike7001]

Those nifty gray keyable connectors are Wago series 733, with an ultracompact 2.5mm pin pitch. I've been looking for connectors like these for a long time.

[@Stoney3K]

I wonder if they use genuine Wago's or they ordered 'compatible' imitation connectors from some generic China supplier. Because those terminals would almost cost as much as the rest of the board.

[@mikemike7001]

@@Stoney3K Apparently the real thing. "SimStack boards can be ordered with standard spring connectors, Wago 733 series connectors or a mixture of both. The Wago connectors add approximately US$25 to the cost of each board." See simulatorsolutions.com.au/new-connectors-for-simstack-boards/.

[@BlackEpyon]

LOL! Dave, who walks into a cockpit and says, "Don't turn it on, take it apart"?

[@tomgeorge3726]

Great video Dave, looking forward to CH2. I have opened a topic on the Arduino Forum, highlighting this video, hope it gets you some more well deserved subscribers.

[@Knight8365]

Amazing project; can't wait for part 2 - soon as you can Dave!

[@Vidicon31]

That's a very cool project. Is one of the leds on the pcb labeled L1 ?

[@billh308]

Very cool, I was going to build an L1011 cockpit and bought all the Autopilot controls for it. Ultimately I became an airline pilots and abandoned the idea. Still have the L1011 autopilot controls. Today I fly 747-400's for a living.

[@davidpalmer9780]

The L-1011 was a beautiful aircraft ahead of its time and capable of Cat IIIc landings in zero visibility. I wonder how it compares with your 744 'LAND 3' capability.

[@billh308]

@@davidpalmer9780 I haven't flown a L1011, one of my coworkers still does for the rocket missions. He would be a good one to ask. The 747-400 auto lands very well

[@pinfarmer]

Doood peel the film off your alupanel! OCD is killing me.

[@martinda7446]

@@Okurka. Ha ha aaaaarrrgghhhhh!!!

[@pinfarmer]

It will yellow eventually and by the time it looks terrible it will be very difficult to remove.

[@tristang444]

I couldn't help but stare at it through the whole video. I wonder if this guy has the plastic covers on all his plastic screens.

[@pinfarmer]

😀tristang444 and plastic on his nice couch in the room no one is allowed in.

[@davidpalmer9780]

Remember guys... It's a protective coating and most likely will be removed when the new sim replaces the old sim on the motion platform but I agree it's a bit 'in your face'.

[@MetallicBlade]

They should bring the 747's back. Cool job this guys been doing.

[@MetallicBlade]

@@RoamingAdhocrat Bring them back into service for passengers.

[@pdrg]

Gold in the windows also reduces UV exposure for pilots. Source: for a brief time I worked with guys making 747 cockpit windows!

[@stargazer7644]

Gold is used in windows because it reflects Infrared, not UV. It limits solar heating in the cockpit. Gold reflects almost nothing at UV. The glass takes care of the UV.

[@onjofilms]

@@stargazer7644 - cool. I knew aluminum did, but wasn't familiar with gold, but makes sense since the lunar lander was blanketed in gold foil. Also via Google > "Gold, silver, aluminum, Plexiglas and hybrid pigments are materials that reflect infrared light."

[@Markle2k]

@@onjofilms That's why the James Webb Telescope has a gold-coated mirror instead of aluminum. It's a special order item for any mirror telescope you might want to work in IR.

[@redsquirrelftw]

That is one hell of an awesome project! Christmas TV commercials be like: "A great stocking stuffer!"

[@Mtaalas]

You definitely need 2 mics for these interviews... can barely hear you at all asking question or commenting.

[@KnightsWithoutATable]

To be fare, there are PLC solutions that will do all of this, including scalability, slaving sets of cards, and Ethernet access to program them. This even includes cards that can handle multiple input and output types with plenty of channels. They are very expensive and there would be WAAAAAAAAAAAAAAYYY more wiring. They are intended for use in industrial automation and as such and come with a requirement of knowing how to use them that is brand specific (the companies that make them will train you, for a large sum) while being highly reliable with a price to match.

[@electronash]

Great vid. Love stuff like this. Can't wait for part 2. (quickly checks Patreon. lol)

[@Stoney3K]

What I'm curious about is how they've handled the cockpit displays since those are generally connected to an outboard computer somewhere in the avionics bay, the monitors are just dumb CRT displays. It would be a considerable challenge to reverse engineer what pins do what on those monitors and try to talk to them without any information on how the protocol works. ARINC429 is basically just a serial bus so it's a lot more straightforward to implement.

[@billr3053]

Not sure why you would cater to the diverse power requirements from 28V DC to 115V 400Hz of the native equipment? Why not reverse engineer the physical switches and the outputs (lights, screens) from the ground up. And backlighting - use whatever - LEDs, electroluminescent panels, etc. "Authentic" - yeah, right. Backlighting - no one cares as long as the brightness and color temperature is the same.

[@EEVblog]

Err, watch part 2. I put my finger on one of the switches and it's so hot I can't keep my finger on it. It's part of the realistic "look'n'feel"

[@NielsHeusinkveld]

@Robert C The servers needed for Google to store all the comments about pollution pollute more than one simulator somewhere in Oz.. ;-)

[@MegaVoltMeister]

What a huge project. Simulator Solutions builds these for sale ?

[@EEVblog]

Yes, you can buy them. Although you'll likely need help in setting them up, as he said, it's not for Joe Average to just take out of the box and use. Talk to Rod about it.

[@frankbuss]

@mPky1 See their webpage. For example one output board costs US$85: simulatorsolutions.com.au/simstack/output-board/ Looks like all software is free to download. So I guess it wouldn't be too difficult or expensive to build your own system.

[@BlackEpyon]

@@frankbuss Obviously, this would be depending on what kind of hardware you intend to put into it. I can imagine using these boards as solid state lighting controllers for complex Christmas light displays.

[@pocoapoco2]

I actually have a nice set of 3 phase 1.5kva 400hz isolation transformers that I bought from some guy on ebay that didn't know what he had and wouldn't take them back. It would sure be nice if I could get rid of them.

[@peterandersen4676]

Great project. But I still doesn't understand: who makes the simulation software that runs the hole thing including the displays?? like airdatacomputer, sensors, stallwarnings, radios, autopilot etc. etc. all these thing. That is extremely big and complicated project to replica a aircraft in software.

[@davidpalmer9780]

Good question and the answer is... www.aerowinx.com

[@rkan2]

Aaand at 12:25 we have one of the major reasons why things happened with Max... Just because 60s technology / architecture "just works" and is already certified, doesn't mean upgrading to at least 80s architectures isn't a good idea...

[@KnightsWithoutATable]

I do have to ask, does it optical isolation and if so, to what level of protection?

[@christianB1234567891]

Which projectors are they using? Just saw the Optoma Packagin, can you tell me an Model Number? Building a 777 Simulator myself ;)

[@davidpalmer9780]

If you're serious about having good visuals, I suggest a TruVIEW visual system from NatVIS. www.natvis.com.au

[@christianB1234567891]

@@davidpalmer9780 thanks, but this looks like it's not affordable for a private Person ;) I used FlyElise Software to try several 1080p Projectors, it's possible with some Models but an issue is the Pixelsize. Maybe theres an Option with a special Lens for the Curved Screen. Most Projectors are made for Flat Surfaceses, the other are Expensive. Maybe i should just try it out and return them if the Result does not look good.

[@TheEmbeddedHobbyist]

ARINC 429 is a specification not a standard, us a arinc 429 card and it's not too hard to program. built a static simulator based on a C130 cockpit to train test pilots to fly a c130 which was going to be fitted with an engine that was twice as powerful as the other's. all electronic flight instruments were driven by ARINC 429 Mathcad was used to provide the feed back to the pilot controls. it was a shame to see the cockpit being removed from the aircraft. but a fun project to work on.

[@Stoney3K]

And getting your hands on an ARINC429 card if you're not in aviation will probably set you back as much as the entire development cost of these cards.

[@TheEmbeddedHobbyist]

@@Stoney3K hi you hit it on the head, the ARINC card was not cheep, about £1000 or so. but putting that against the cost of cutting off the front of a C130 let alone the cost of the C130 its self. it was sad as the plane had flown in so was not a scrapyard item just yet. we got a few funny looks then they found out that Microsoft flight sim was running in the background and driving all the military flight systems. You could put the flight plan into a state of the art glass cockpit and then fly around in the flight sim. all the real computing power was used in providing control feed back to the pilots. it was great project to work on.

[@Yrouel86]

This is an impressive project I wonder if they will invite actual pilots to basically validate it when it's completed. I was also wondering if they'll plan to mount it on an hydraulic system to move the cabin which would be even more impressive. Watching some documentaries Boeing itself reuses cockpits from scrapped planes to become simulators and it would be interesting to know how do they interface with them

[@davidpalmer9780]

Take a look at Dave's other channel, 'EEVBlog Discover' and view the other 2 videos he has about the DIY simulator. It demonstrates the hydraulic motion platform you mentioned.

[@NicoDsSBCs]

Now that's cool. Hardly to be called non pro. Or this guy must have a lot of free time.

[@EEVblog]

It's Rod's full time job because there are many aviation enthusiasts with a lot of money that want a realistic simulator. The niche of niches.

[@DestructiveBurn]

What kind of camera are you using? The quality is amazing.

[@nixxonnor]

Awesome job

[@unperrier5998]

The interesting bit starts at 25:18

[@Sjaak_PD1SRM]

a big thumg up for this video great ;-)

[@laser-sj]

Just brilliant !

[@frazzleface753]

Fascinating. Thanks!

[@electronic7979]

Super 👍

[@1ytcommenter]

how much is the cost of one of these real B747 simulators if you buy it second hand/used from one of the flight training facilities?

[@DAVIDGREGORYKERR]

Wyhy could you not use Corning USB cables, has anyone even thought about using an UDOO RYZEN Bolt V8 maker board which is compatible with A86,MASM86 or GCC80586

[@bradgriffiths3370]

Very, very cool!

[@HebaruSan]

I'm sure there was a reason they did it that way, but boy howdy flying it to Australia and chopping the head off there would've been so much simpler!

[@davidpalmer9780]

There's an aircraft storage facility at Alice Springs airport but alas... they haven't broken apart a 747-400 as there needs to be the support industries nearby to support the treatment/ recycling effort. It's cheaper to fly aircraft to the USA that have these facilities already in place.

[@joshwoodland4845]

No wire numbers???? Yikes; must be a real pain to troubleshoot.

[@freeman2399]

Pretty cool!

[@justinlynn]

Does anyone know the make/model for those spring/keyed connectors discussed at approx. 19:27?

[@mikemike7001]

Wago series 733

[@MichaelSchwagerPlace]

I dunno Dave, show a little enthusiasm for your subject. :-) seriously though, your joy is infectious! I love this channel.

[@Cmensailing]

Awesome video love ya work

[@onjofilms]

I'd be interested to hear in EEVblog speak how he is uploading the software via Ethernet. Didn't really understand his short description. I'm guessing it is still programming via the program data and clock inputs to the processor, but is there a middle man there?

[@Stoney3K]

My guess is that, because he's talking about 'programming' the simulator I/O logic in there, that you're not actually programming the entire microcontroller flash with new data but there is some kind of VM-like architecture running in the Atmel processors, which can run any code you want to manipulate data in the simulator's memory. Since the boards are only doing I/O and not any complex logic or arithmetic, you can do that with a very simple instruction set which is interpreted by the boards at run time. Completely re-flashing the chips over Ethernet is certainly possible if you have a boot loader that can talk SPI and which will load the new firmware binary off Ethernet, and only flash it when it verifies as being correct. That's how pretty much any embedded controller does it.

[@onjofilms]

@@Stoney3K - Interesting. Thanks.

[@-dazz-]

I'm speechless

[@FindLiberty]

Nice!

[@MrMegaPussyPlayer]

25:30 ... Nice teaser

[@bobster1982]

Argh! Cliffhanger for part 2!!

[@TheDrewker]

If Dave was an animal, he would be one of the CGI wolves in Mowgli

[@k1mgy]

I spied a FDS8447 in there. rDs on of 13milliohms. Pretty cool customer!

[@floodo1]

very cool

[@NivagSwerdna]

Don't know much about avionics... it would be nice to have some basic facts... like common operating voltages, protocols etc. The arduino solution is rather sweet... 328P for the win.

[@EEVblog]

Err, he mentions common voltages and protocols!

[@NivagSwerdna]

@@EEVblog apologises I speed watched it, as I do most KZbin Must have missed that part. @09:30 Voltages. Looks like I was caught out for trying to blag that I had done my homework.

[@davidpalmer9780]

@@NivagSwerdna ...and at 7:50 for the different protocols too. Actually... I recommend watching at normal speed. :-)

[@bloodyl_uk]

USB for serious/commercial avionics sim gear interfacing?. Gah. no wonder you rolled your own networking solution.

[@p_mouse8676]

Very cool project, but I don't really see why you would like to keep the old very inefficient bulbs? The user won't see nor feel the difference, so I don't really see the nostalgic reason in there.

[@EEVblog]

Err, you are forgetting who this is for, it's for the 747 enthusiast that wants the utmost in reality. See my next video were I put my finger on one of the switches and it's so hot I can't keep my finger on it. That's part of the 100% realistic "look'n'feel"

[@p_mouse8676]

@@EEVblog I understand that, lol Just saying I don't really understand how that would have a negative impact on the whole experience. But maybe my mind works to pragmatic. I really do admire all the effort and commitment that was put into it! Cheers to that!

[@EEVblog]

@@p_mouse8676 You aren't the one paying the million bucks for realism.

[@p_mouse8676]

@@EEVblog don't really understand the comment? But answer it, i would rather spend a million into an education program ans museum around it to get the new generation involved.

[@SoldererOfFortune]

Are the spring loaded headers made by Wago?

[@davidpalmer9780]

That's correct!

[@rsattahip]

There would be good money in fixing those.

[@Sonex1542]

All that and no demo?

[@IgorPshynyk]

For Boeing, dark times began. Recent test 777 confirmation of this, now the company has no confidence

[@davidpalmer9780]

I think it's the engines for the new model 777 that's having the problem.

[@reviveddk]

the audio on his mic is very noisy, rather uncomfortable actually.

[@PplsChampion]

18:10 omg i didnt know spring headers were a thing

[@excitedbox5705]

They are all over Aliexpress. They are gray with orange levers usually. They are really cheap too. I have wanted to buy an assortment kit for a while. Those spring connectors are also popular for speaker wire connections. Those black and red tabs on the back of speakers and receivers.

[@PplsChampion]

@@excitedbox5705 oh yea, come to think of it, i have seen them on speakers. thanks!

[@Stoney3K]

@@excitedbox5705 If you want to have quality terminals, look for brands like Weidmüller or Phoenix-Contact. They have a track record of providing high quality components since they supply industrial automation equipment. Just don't expect the connectors to be $0.50 a pop like on Aliexpress.

[@celiturbo]

Pretty hefty price tag for something set squarly on the shoulders of open source right up to the point of loading a custom bootloader just to close it off. No pitty when aliexpress pumps out thousands of these for next to nothing.

[@Stoney3K]

@Undefined Lastname To be really pedantic, Arduinos, but they just use them as a base chip and nothing more. There is nothing 'open source' about Arduino except the development environment which is ultimately just a fancy Java-based C IDE.

[@MatthewSuffidy]

What else do you want to blow 20 million on? I know, I know it was just 5.6 million. Ooops got the feedback wrong. Half the instruments shattered on simulated crash.

[@Alexander-qz6px]

fucking xyz was „not insignificant“. Tell us the numbers. How much was it to ship a cockpit to Australia etc.

[@rubenafonso]

Funny, it is based on Chinese boards but is for "professionals and high end user". Nice idea, a good looking board but give me a break, an hobiest electronic engineer can work with that.

[@davidpalmer9780]

Hi Ruben, I thought the boards were of bespoke design and it was said the boards were made in Australia.

[@codebeat4192]

14:35 Plenty Arduino Mega (clone) boards! ( 15:44 and press pause - Mega compatible) Arduino for kids? Duh! :-D ;-)

[@Lightning666]

This chips from 2007, The WIZnet W5100 is a single-IC Ethernet solution with a built-in TCP/IP stack. www.i-vis.co.jp/pdf/wiznet/tcpip_chip/w5100/W5100_bootcamp.pdf

[@thekaiser4333]

Isn't this where Al Qaeda trained for 9-11?

[@trickyrat483]

I've just checked me shed.. ..Too small. I'll skip this project. :)

[@EEVblog]

You also checked your bank balance... ...too small.

[@alansmith4734]

Was the 737 Max Simulator crashed?

[@RonsonDenmark]

The dreaded red clickbait-arrows.. Hope this is not where this channel is headed.

[@Mr.Trololo]

waw

[@ryanavery7980]

inside?? lol

[@pnjunction5689]

Nice!