I Designed a Printed Circuit Board (PCB)

[@ChrisElison]

I received my first ever boards (with lovely blue solder mask!) from JLCPCB yesterday, took just 6 days from uploading my design to delivery to the UK, really impressed and highly recommended!

[@CuriousGamer83]

I found that if you print out a copy of the PCB on to paper first before you get it made up you can test fit the components. If something doesn't fit you can reprint it quicker and cheaper than getting a new PCB made. EDIT: Just remember to set the correct DPI when you print out so its right.

[@JulianIlett]

Very sensible - I've learnt my lesson now :)

[@BertGrink]

Another good idea that I'm going to "usurp" :D

[@1_HighDuke]

Great tip!

[@BertGrink]

CuriousGamer You might be interested in these as well: www.ebay.com/itm/25cm-10-Inch-Multifunctional-PCB-Ruler-Measuring-Tool-Resistor-Capacitor-Chip-IC/202077231422?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

[@deangreenhough3479]

Thanks for the link, I have purchased one

[@schwartzenheimer1]

Great job, always exciting bringing up a new board. The layout on a project like this is really great fun, and gives a lot of satisfaction. With the price of prototype-quality pcbs, and the ease of submitting the design, no reason to breadboard any more. A pcb turn used to be a big deal ($100s - $1000s and more); now it's a breeze. Good job.

[@totally_not_a_bot]

At 23:50 the two builds sync up for a moment, and it's quite satisfying.

[@dimtim4298]

great videos, just started making PCB and waiting for my first order to come in from JLCPCB.

[@BogdanSerban]

I suggest that you use ground planes on both sides and adding 0.1uF ceramic caps to each IC (as close as possible to the supply pins; SMD caps would be even better).You can also use IC sockets to easily replace them if they get damaged. Terminal blocks are also quite nice and cheap.

[@JerryEricsson]

Neat for sure! Sure would like one of those boards and wow the cost was ever so reasonable, kind of hard to justify buying the kit to build on your own!

[@wisher21uk]

I can see the ebay listing "Julians night rider, novelty, party, holiday, string bead, disco, pcb, solder, led, car, project "

[@mdijkens]

I really loved how you mixed the build with the design! Please keep doing that! Thanks for all the fun and interesting videos

[@jayer898]

i have been watching your videos for a while now and enjoy every single one including the mailbags please keep them comming.

[@The.Doctor.Venkman]

I've heard so many good things about JLCPCB - I will definately use them in some of my designs.

[@njfulwider5]

I only use these guys for all my printed circuit boards! great quality! Been using them for the past year!

[@electronicsworkshop5580]

Thanks for the video! I am pondering the idea of designing my first PCB but haven't yet started. 5:17 Yes!

[@964tractorboy]

If I had produced such a board in so little time I'd be (quietly) very pleased with myself. Good job. Interesting choice of CAD tool. Perhaps the subject of a future video if this is within your chosen scope?

[@DafyddRoche]

Julian, I too suffer from "try and get it on one layer" sickness! However, I would strongly suggest that you put a copper layer (with gabs for through holes) on the unused side. This has two advantages - (A) Nice big ground plane to avoid noise (B) Much friendlier to mother nature, as the copper doesn't need to be etched away.

[@NetworkXIII]

Dafydd Roche Agree 100%, I couldn't even imagine designing a PCB without a ground plane, or at least filling in as much as possible with ground polys or thieving if it is a single-layer board.

[@shauntronics]

Far be it for me to suggest but when assembling through hole PCB's it is much easier to start with the physically lowest/smallest components first i.e. resistors/diodes then work up to the largest/tallest. Take it from me I have had to assemble 1000's of identical boards for professional analog audio gear such as mixers/outboard and power supplies.

[@matthehat]

I've used JLC a few times for my homebrew computer projects. I am not keen on the EasyEDA software but you can upload standard gerber files so really any PCB package design tool can be used.

[@DrGreenGiant]

Awesome PCB buddy! I've never used a 555 before, always used micros, would be fun to go back to the old days and try it! Wonder if you could run it from a joule thief?

[@willofirony]

Great video, Julian. I am curious, given the problems with smd and solder paste, how useful the stencils are. They are not cheap (compared to $2 for ten boards), but if they reduce the faffing about, it only adds 70c to the price of each board. Soooo, if you do use JLCPCB for your solar power controller, could you also get the stencil and demonstrate whether they are worth it?

[@bennyboi0115]

On EasyEda you can modify the silk layer which has the "r1, d1" by double clicking on the text and changing it to what you like love the channel, keep up the good work :)

[@ChrisElison]

Nice video! I've also been playing with EasyEDA, nice and user-friendly web-based schematic/PCB editor, considering using it to design my very first PCB project, a little ATMEGA-based RGB strip controller.

[@Landrew0]

The original KITT car lights were a nod to the Cylon helmet lights from Battlestar Galactica. I doubt it was run from a 555 timer circuit, because the lights were the much brighter incandescent bulbs necessary for the cameras of the time. It was probably a series of simple "blinker" relays, with an inherent delay, whereby one relay energized, illuminated the bulb, then energized the next, and so on. When it got to the end, it flipped another relay, to reverse the circuit to send it back the other direction.

[@MrBBea4]

As a true follower of you and your escapades with spreading solder paste, not sure if you know but, when designing and ordering your boards on JLCPCB you can order a solder mask. Which you place over your board then squeegee the paste across leaving the perfect amount of paste ready to place the smc components. perfect every time.

[@JulianIlett]

When I re-design the solar charge controller (which will have SMD components on it), I'll order the stencil too :)

[@MrBBea4]

Yes SMD....sorry for my typo..

[@MrBBea4]

Looking fwd to that video...Note: dont forget to add alignment holes in the stencil. they are not automatically drilled. The stencils are designed for a machine which does the aligning, but for DIYers adding the holes simplifies the correct placement of the stencil over the PCB.

[@demoncloud6147]

Congrats, mate ! You are the man .

[@Roy_Tellason]

The first thing that jumped out at me when I saw those boards was the orientation of the LEDs. That makes it exceedingly difficult to properly bend the leads 90 degrees so that you can have an edge-on orientation. I have here some LM3915 audio level indicator boards that allow this, your design doesn't, or it at least doesn't make it easy. The other thing that jumped out at me was when you were placing chips in your schematic. The first thing I saw there was that the 555 was laid out according to the pins on the chip being in order, like you'd see it on a board. I absolutely detest that sort of schematic! A chip should have inputs on the left, outputs on the right, Vcc on top, ground on the bottom, etc. *THAT* is a schematic. What you had there was more of a board layout diagram... I've seen some magazine articles that follwed this convention, and it sure makes it difficult following the typical rats nest of interconnections so you can understand what's going on.

[@kjur18]

Instead of clicking icons you can use shortcuts, W for wire/track, T for top tracks, B for bottom. Currently I''m making small single cell li-ion charger with protection and boost circuit, everything on single loaded 20x36mm board. All 0805 pasives. I wonder if it will really work. Only one way to find out!

[@tobortine]

Excellent video. I felt previously that your content was getting a little jaded but the way that you mixed the board build with the board design was spot on. Really enjoyed it, well done.

[@deangreenhough3479]

tobortine Me too. Julian’s back🤫 Maybe you should take us through the easyEDA software at of the build. Looks like after this, I’m going to have to start designing my own PCB’s Cheers Julian, grateful you shared

[@MrMikeEdie]

Very therapeutic watching this.

[@paulcollins664]

I'm just learning the pcb software at the moment one step forward and six back, like you I used to make my own boards ,but would like to get into this method, and not dealing with those nasty chemicals would be nice. Paul

[@TeslaFactory]

Hello from New Zealand! @JulianIlet what is the purpose of your clippings pot? Just for recycling, or...?

[@willproctor7301]

Is it my bad memory, but didn't kitt's scanner have a noticable pause between pulses. Like back and forth then a delay.

[@scroobyx7790]

Great video, more like this please.

[@gwkdad]

So, how would one make a game of "Stop the powered LED on this spot"? Momentary button to "freeze" the sequence???

[@Davedarko]

that's where my pen went?! gosh jlcpbc, you had one job!

[@oldtimeengineer26]

Is the easycda really free? Back when I was working I used Pads Powerpcb and the largest board I laid out was 8 layers. Good job

[@roidroid]

The pin holes for the cap are so close together, you may be able to solder an SMD tantalum cap onto it, instead of through-hole.

[@MaxGoddur]

Just created and ordered some boards and was a bit confused. The boards were only 2.00 dollars. Then when it came to shipping it stated the first order was shipping=free. When I got to the check out it stated two methods of shipping 12 and 18 dollars. Is this the regular shipping charge? I live in the US.

[@DatBlueHusky]

couldn't you just run one resistor on the ground side than having that many? its not like the leds are on all at the same time

[@1_HighDuke]

He doesn't have a ground plane. It's a one-sided board. Come to think of it, you can take his circuit design and adapt it into an etch-able board.

[@JasonMasters]

Only if he switched 8 of the resistors for diodes, otherwise he'd be shorting a high output to a low output and probably blow the 4017.

[@sej7278]

Did the $2 include shipping, as the other videos I've seen JLCPCB sponsor say it does but I can't figure out how to get it, don't really want to add $10-25 shipping on top, might as well go with OSHpark at those rates

[@Michele_Montesi]

it was interesting to see some moments of the designing part

[@nicnl255]

I really like you're being sponsored by companies that would actually trigger your viewers interest. There's too many tech youtubers accepting shaving companies as sponsors.

[@km5405]

you should check out the free circuit and pcb design web editor that goes along with their partner and allows you to go straight from schematic to pcb to a jlpcb order and order the components with it too.

[@sa3270]

The ad I got was stupid nothing to do with electronics.

[@DavidScheiber]

EasyEda

[@suryaraju2827]

If you look at it another way, it's better to be sponsored to create a video than not being sponsored at all.

[@amicklich6729]

I agree. These kind of sponsors I'm totally on board with. It has to be very utilitarian and specific for it to not annoy me. : )

[@Yotanido]

Could've just made the topside into a ground or power plane. You still don't see any tracks and you could have avoided that (unpopulated) bridge. Still, pretty neat how you managed to fit it all on one side. Also: What's your problem with bending the leads? I always do it, since you get a good connection between the lead and the plating - otherwise you risk the component only being connected by solder, which is not ideal.

[@Ziplock9000]

Those metal claws you're using to hold the PCB can break or strip traces. You can get a half decent PCB holder for 15 quid

[@_Mackan]

I got some PCBs from JLCPCB and I somehow got free shipping too, worked great for my first project on actual PCBs!

[@tinygriffy]

save the environment ! put filled copper zones / ground planes ! less copper to etch, less chemicals used !

[@RespawnRestricted]

Could this be done with less resistors?

[@repje2010]

Yeahhhh Julian! i can use this nice nightrider for my home made balanced Robot that im building atm. and all with nice 3D printed parts as well :-)

[@DavidWatts]

The kit creation competition is heating up!

[@1_HighDuke]

You and Julian are in my top 3 of electronics youtubers. Thank you both for creating awesome content! :D

[@masterbrown2002]

Crap Clock vs Night Rider sounds like the best competition ever xD

[@tonybrock5288]

Is that kit or KITT?

[@electronash]

David Watts You really seem to get around. ;) (bit of a "meta" joke there, and sadly nobody else will get it.)

[@DavidWatts]

:-)

[@JN.0_o]

Nice to know about another PCB house, but the absence of power and ground planes in your design is triggering my OCD bigtime. I can see why the web browser design tool might be useful in some situations, but I don't think I'd want to be without the 3D modelling tool in KiCAD. It's so useful for getting your PCB to look exactly how you want before you send off the gerbers.

[@nikonissinen6772]

Why do you have a bucket of offcuts?

[@BernhardHofmann]

I watched this yesterday on my TV where it's impossible to comment so I'm back to comment. Firstly thank you very much for the video, it's almost as rewarding for us to see your prototype make it to a PCB. I've tried the online designer as well and had similar issues to you (which component to choose, where to find one, etc.). I think a video dedicated to using EasyEDA would be welcome. Certainly by me if nobody else. As a complete novice to PCBs I tried to use the auto routing and found that their server was often busy and setting up a local routing service was a right PITA. Persistence paid off and auto routing was quite impressive to be honest. One idea I had for my PCB was to place a QR code (yes, images can be placed on the board) or a URL from a URL shortening service like goo.gl or bitly.com on the board that was a hyperlink to a web page that described what the board does, what components are used, and maybe how to assemble and use it. In your case, it could've been a link to a page that redirected to this video. Cool idea or just silly, I don't know. What would be nice is if there was some directory or database where we could see the parts for sale from various sites (like Google Shopping) alongside the components in EasyEDA, and from that, produce a BOM (bill of materials) and even place orders. Whilst I'm at it (writing ideas for EasyEDA - hope they read the comments after sponsoring the video), it would be nice if we could order the board and components as a kit from a designer like yourself. You could have a link to the project, share it, and we could simply hit a button to order the board, with or without the components. What a service that would be! My novel is almost complete! All's that's left is for me to say thank you again for keeping it relatively simple for us noobs trying to make sense of electronics.

[@BernhardHofmann]

Correction: running the routing server locally isn't difficult, it's just a lot larger than I expected (337MB).

[@mewintle]

It must have been a lot of editing work, but I *love* the cuts back and forth from the s/w and h/w!

[@rimmersbryggeri]

Resistor array? Or are they too short?

[@TheLightningStalker]

How much was the shipping?

[@iamdarkyoshi]

Congrats on the sponsor!

[@gartmorn]

Julian how about a video about the projects you created for Everyday Electronics. It was a great periodical and nothing that followed covered the range of projects it used to cater for. It was especially good for beginners with lots of wee projects like the 'Knight Rider'!

[@gartmorn]

I'd love one of your pcb's but assume they'll be going like the proverbial 'hot cakes'!

[@erlendse]

Looks like a good start. But please for the sake of stability, add a supply filtering capacitor to the design!

[@Inquire98]

"Thank GOD", and thank you very much for your support and time 😉 I would like a copy of the board in this video, if it's still available 🙄 Let me know 😎🙏🏾😎

[@AndrewWalsh43]

Hi Julian, Love the video, would it be possible to have one of those pcb's ?

[@robluiten5845]

hi julian wondering if i could get night rider pcb or a link to .or a jlpcb file to make this great project..... ps i made it on bread board it works great love ya work....aussierob

[@RandyDarkshade2]

Nice circuit! Will you be giving anyway as you suggested in the early part of the video?

[@albertcarpentercats]

The best way is to bend two leads in parallel corner of the ic to hold it.but do the way you do.everybody does differently.

[@DundeeRoad]

neat little project

[@jamest.5001]

how fast can you get it to chase? so fast they all look to be on?

[@subigirlawd_7307]

Awesome julian! I bet it was fun designing this project...

[@JulianIlett]

Yeah, it was fun. Trying to leave no tracks on the topside was a real challenge :)

[@marcus_w0]

still a heap waste of resistors. 1 single on the ground line would do it's purpose, too.

[@sjm4306]

Marcus Wiedner Depends. For this scenario yes a single one will do ya fine. However for something where even lighting non-bin matched leds is important (backlighting, etc) then having only one resistor isn't gonna cut it as the led with the lowest forward voltage is gonna suck up more current and could even damage itself. Of course backlights don't require sequencing so driving them in series works just fine.

[@JasonMasters]

No, it wouldn't. Because he's driving 4 out of the 6 LEDs from two different outputs of the 4017, trying to turn on one of those LEDs would cause a short-circuit between the high output and the low output and probably blow up the 4017. The only way out of that would be to use diodes, and you'd need 8 of those plus the current limiting resistor. You may as well just use the 10 resistors as Julian did here. The difference in complexity and cost isn't significant.

[@marcus_w0]

And these aditional resistors form a needed diode? Bullshit. a LED IS a DIODE. And the 4017 has a protection diode at the output built in - so you only need the LEDs, a single resistor within the right range and everything is fine. Damn you guys make a simple 6-year-old-wants-to-learn-electronics curcuit seem like rocketscience. This curcuit is 40+ years old. it was old even when I was a kid. have a look at a german Elector from the late seventies.

[@sjm4306]

Marcus Wiedner It isn't rocket science, but ignoring device variance and assuming ideal conditions in all situations is a quick way to release magic smoke. I agree in this situation it isn't critical but there are cases where trying to cheap out can be one's downfall.

[@marcus_w0]

Oh c'mon - this isn't a very packet ASIC or FPGA with 0.7V lines - it's a CMOS 4017. To kill this beast you'll gonna want to kill it.

[@andreaseldblom1459]

I realy would like one of those pcb's! :D perfect for a newbie to start there solder journey! :)

[@AlexFallin]

I might have to order some PCBs just to get one of those cool pens

[@AtomkeySinclair]

Neat man. Add header for your clock signal on next design too perhaps.

[@jamest.5001]

yes I'd like one. I was thinking about building one! I love kitt! I always watched the show. even now days. if it were on. and I love your channel!

[@bridgendesar]

It's on "Forces tv" and Airwolf too! (assuming your in the UK)

[@maicod]

would it be possible to let the circuit design sofware figure out the optimal spacing and placement of the traces ?

[@imjeff88]

some times and some times not most the time you can do it better your self

[@maicod]

right

[@edevans118]

How can I order this board

[@darthvader8433]

I'd get into the habit of leaving the component IDs on the PCB Julian, makes fault finding much easier on more complex ccts...

[@josephf151]

How do they compare to OSH park? I am sure they are cheaper, and if they are good enough quality then perhaps I'll give them some business.

[@delboy1727]

Personally I prefer OSH Park for the simple reason that you don't need to mess about creating Gerber files. Just upload your brd design and they sort it out from there. It's the main reason why I didn't use one of the PCB manufacturers in the UK that I found. I'm a beginner when it comes to electronics and PCBs, and when I looked at what the UK company were asking before they could make your board - board thickness, material, drill sizes etc - I had no idea and went with the simple option. I'm sure that sort of versatility is great when you know what you are doing, but for a beginner like me, simpler is better.

[@RobTheSquire]

I bet that off-cut pot comes in handy for some improvised jumpers

[@1over137]

JLCPCB, ALLPCB, PCBWAY All appear to be part of the same group with different pricing strategies. ALLPCB currently offer free TNT international shipping and the boards are still only $15 for 5. I tried to get a quote from JLCPCB but I couldn't get a shipping quote without uploading the gerbers. :(

[@steveparkes]

Paul Campbell 100mm x 100mm up to two layers always comes out at two dollars. I was messing around yesterday trying to pack as much in for the 2 dollars and free shipping first order deal.

[@1over137]

Free shipping first order with JLCPCB? Do you know who they ship with?

[@YourMotherSucksCocksInHell]

I don't get free shipping, they charge $12.50 for 10 pcs.

[@steveparkes]

No idea, my boards are quite small so I'm going to add a couple of little things I can cut off at home to get the most bang for my £1.41 before I order. I'm that cheap ;)

[@1over137]

Careful. They aren't that stupid, if you note they ask you how many designs in the gerbers. When they review it and find you have stuffed a bunch of stuff onto one "board" they will charge you extra. Unless you make it look good, like putting a track between them.

[@AdamWelchUK]

I had jlcpcb do some boards for the esp8266 solar charge controller RS485 adapter I made. I found easyeda pretty intuitive too. Recently though I’ve been using allpcb.com - more expensive but far far quicker delivery. Had some arrive last week, produced and delivered to the UK in seven days. Will competition winners have to provide their own components? :-)

[@JulianIlett]

Yes, and an amusing slogan ;) Nice thing about a PCB is I can post it worldwide at a reasonable cost.

[@maicod]

slogan: I'm a Cylon and I'd like one for my visor

[@deangreenhough3479]

Adam Welch thanks Adam for the heads up

[@frankalvarez7387]

Damn this video inspired me to create PCB for my NRF24L01 project i have it on perfboard and its such a mess plus i gotta get thoese nice pens :)

[@Telboy-fv8ke]

I am 60 today , does that qualify me for a board??

[@trickyrat483]

I guess it depends on whether they allow soldering irons in the nursing home? :)

[@afr1221]

Wayne Turner Hahaha

[@HainjeDAF]

Yes, I'd like one of those

[@tonybrock5288]

I hate using breadboards because you often get dodgy connections that trip you up and waste a lot of debugging time. So invariably I do my own home PCB's. They're quick and easy. For simple circuits I'll just use Fritzing. I print the layout onto tracing paper with a laser printer. Expose onto photo sensitive copper using a home made UV light box , develop and etch. In less than half an hour I can have a couple of PCBs to play with. Very satisfying and much neater than breadboards and so much more reliable.

[@ikbendusan]

why did you choose easyEDA over something like kicad?

[@ikbendusan]

ohh i see, easyeda is also from the same guys

[@abecoulter18]

Can I get a copy of your Gerber file used so I can make my own at work. We have our own PCB machine and wave soldering machine

[@NetworkXIII]

Abe Coulter Is it a milling station?

[@zaqway]

I have actually been toying with the idea to design and order couple of prototype boards for this circuit, after your video. It would be great to get one from you, if you can spare some :)

[@Vinyl-Sloth]

Do you live in the UK?

[@LemoUtan]

you could probably redesign with tiny surface mounters and fit everything onto a board small enough to fit a pair of 'em behind your sunglasses.

[@BertGrink]

+Julian Ilett It's a nice PCB you got there, but i think you missed an opportunity when you decided to go for round LEDs - i would have chosen rectangular ones, and placed them side by side as close as possible in order to get as close as possible to the original design from the TV show. Perhaps a V2.0 of the board in the future? ;) Greetings from Denmark.

[@1_HighDuke]

Right, like the ones he used for the LM3915 Audio Level Kit.

[@BertGrink]

1_HighDuke I don't think i've seen that episode yet...

[@BertGrink]

...but now i have. ;)

[@keithcrain]

Hell yeah I'll take one!

[@kardeef33317]

One trick is to print your pcb layout on paper , the they your components on it to make sure everything fits in its footprint. Hope that helps.

[@neilquarrell7551]

Nice work.

[@MrBBea4]

Hey Julian, Great work..as usual. I have become a PCB maker junkie. In fact almost all of my breadboard creations end up on these easy and fun to design boards. It is so cheap, why wouldn't you. I bring them out at parties and impress my friends. I use Easy-Eda which I believe is the parent company to JLCPBB. They are great and YES there is a bit of a learning curve, but they have a great on-line help and a community of geeks like us who want to help. Also there is a huge community forum where you can share your designs for others to order. I don't know if you have come across yet, put there is a magic button on Easy-Eda which does the auto-trace for you. Drag all the components onto the board place them wherever you want as tight as you want, click..and presto. It runs all the traces for you, quite magical really. You said you were gonna to give some of your boards away, I may be the first to ask, but I would be honoured to be the recipient of one. In return I will send you one of my first boards, the “Super Siren” A double 555 circuit for creating an adjustable siren alarm. Let me know. Looking forward to more of your designs. Cheers from Canada.

[@MrBBea4]

Quick addendum, next time try the "Panel" option when ordering boards. It is cheaper in the long run Your boards are made on a big sheet side by side and they come as a sheet with score lines engraved. They just snap apart. I always order mine this way, it can work out to pennies per board. Also, you can order boards any shape! they don't have to be square. Yes I am excited about this company, as one who has struggled with all the different ways of making your own boards at home.

[@Ohm7111]

I used JLCPCB once. Very good quality of PCBs and fast delivery. Only thing I don't like is shipping price. 2$ for PCBs and 9$ for cheapest shipping. We all know shipping costs in China are close to nothing, so they obviously make money on shipping. Price is still good for me, but far away from 2$. Somebody says there is free shipping, but maybe only for some countries? I also didn't recieved any free gifts.

[@tripy75]

meh, my 8$ "express" shipping took 15 days to be delivered to the carrier. Then only 2 days to arrive my place, but what's the point then.

[@MrBBea4]

I'm in Canada and shipping is $18. What I do is order several board at the same time. Either many of the same or different designs. The best thing is they are using DHL so they come fast within a week usually. I look at the cost and hassle of doing it the old fashion way. Even if i only need one board at $5 for the board and $20 for the shipping it is still cheaper, quicker and much better quality that DIY.

[@MisterIndeciso]

Don't they have free shipping?

[@Ohm7111]

Unfortunately no. 9$ was cheapest shipping.

[@MrBBea4]

But we all know "free shipping" from china is a bit of a gamble...great if in no hurry. most stuff I order takes 30-45 days to come...As i said above. paying for shipping (which is going to DHL, and not the PCB company) is worth it just for the turn around in getting the boards.. I too order tons of "useless" stuff from China on ebay, (sorry about that Mr. Trump, but I'm in Canada we are good with our GDP) and when the black bags do finally arrive its like Christmas...You never know what is in them. The trick is to order consistently. So every few days you get a package. Sorry this has nothing to do with PCB shipping charges, but still a comment.

[@Lasseu]

i would like to get one Knight Rider PCB as well, i had just ordered shift register few weeks ago, i had a go with 555 timer as well earlier. Im no expert :D

[@sanlyai8287]

Hi Lasse, Welcome you guys to contact us (www.fc-pcb.com) for cheap and fast turn around pcb manufacture . Email [e-mail] and skype fcpcbsales2.

[@iliazark1]

can you give me a link for that blue tac???

[@brocktechnology]

Go to any store in the world that has pens, notepads, and paper clips, the blue tack will be next to them.

[@reeseyme9613]

really??

[@TKomoski]

www.amazon.ca/Elmers-Reusable-Adhesive-2-Ounce-6155061625/dp/B007Z7PJZM/ref=sr_1_3?ie=UTF8&qid=1521991371&sr=8-3&keywords=blue+tac

[@iliazark1]

thanks man...I thought it was an electronics thing

[@1_HighDuke]

Nah, it's the thing you use to hang posters up :P

[@PiratCarribean]

Ofcourse I would like a Knight Rider PCB. Nice video Julian! Not sure why you called it Night Rider though.

[@joinedupjon]

yeah giveaway! Thought it was going to be logic gates based on LDR joule thieves though...

[@patricksweetman3285]

Fabulous. Please put me down for one if you decide to sell them.

[@brocktechnology]

I didn't take in your last video on this circuit but surely some commenter pointed out that it's called a Larson scanner?

[@stevesm2010]

brocktechnology Probably after Glen A. Larson who produced Knightrider :-)

[@SpeccyMan]

Yes, actually I did point it out. He also produced Battlestar Galactica.

[@stephtronix1811]

Great video Julian, can I have one of your boards, please

[@hrnekbezucha]

The packaging looks just like from PCBway. Little box with a vacuum sealed bubble wrap pocket and a rubber band. How funny would it be if they shared the assembly line?