Self contained vehicle door warning strobe lights.
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- เผยแพร่เมื่อ 7 ก.ย. 2024
- These are an odd little thing. You stick them on the end of your car or truck door and when opened they start strobing as a warning to other traffic.
At first I wondered how they would fit in between the side of a door and the frame, but it turns out that on most cars there is a reasonable gap.
The devices use double sided pads to attach in place and use a magnet as a sensing device for when the door is closed. Each unit contains a single easily replaced CR2032 lithium cell and quiescent current is very low.
The units are available in a wide variety of colours. Here's a generic eBay search link for them. Target price is around $3.
www.ebay.com/s...
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
www.bigclive.co...
This also keeps the channel independent of TH-cam's advertising algorithms allowing it to be a bit more dangerous and naughty.
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After 30 seconds, the flash mode changes. Install it, close the door, wait 60 seconds, open the door, and if it's the FAST pattern, then yes, it turned off. If it's the SLOW pattern then no, it didn't, you need to move the magnet.
Ahh, that's a clever idea. I was wondering how you'd know if it was misaligned... Otherwise it would drain the battery in a couple of days.
I keep forgetting to tell you how much I like the blown up pictures of the circuits that you often put up, and to thank you for them. Makes it one hell of a lot easier to see what it is. On your drawing, I almost wondered why you were drawing the passenger side door, but before the full thought was done, I remembered that you were on the other side of the big pond.
I sat there like: 'I wonder if this fits on my car'
And in the exact moment you went: 'I saw that it fits on a skoda fabia (my car)'
I was a bit scared not gonna lie.
But then again the Skoda's tolerances might be a bit wider than the norm, a couple of inches of wiggle room here 'n there, no problem. You can even stack two strobe lights in there just fine... jk he-he
Me too 🙂
@@BillAnt since 2010 they are made with the same quality as most of the cars in the VW group 🙂 Skoda Fabia are 98% the same as VW Polo 😉
sismofytter - beat me to it
Had to look that up. That’s a small car for a (big)clive.
One of our old cars had these built into the interior door trim with actual bulbs. If you were sitting in the back seat when the door closed, you could see the lights fading out.
Perhaps 3M have moved from Minnesota and given up Mining?
Well, since there are three separate letter M's in that pack of stickers, collectively it's 3M, they've just spread it out.. ;)
And Manufacturing as well! This trinket is trash. Great video.
Knowing for many years what 3M stands for , this just made me laugh.
@nowtrytv < I remember reading that a while ago 3M = "Minnesota Mining and Manufacturing" company. :D
3M gave up on mining almost immediately. Turns out their mine didn’t have anything worth mining in it.
Instead of slamming the door and looking for broken red plastic, make a cone of plasticine/blue tac, stick it to where you'd like to mount the light, cover it with a bit of cling film and shut the door on that - It'll get squashed and you can measure the thickness of the squashed blue tac
Plastigauge wants a word with you.
@@bills6093 this guy clearances
@@bills6093 you got me - but blue tac is cheaper :D
“The shattered red plastic test”, that creased me! 😂😂😂
Technically there is 3 complete M's on the stickers.
You beat me to it creamy moose !!!
Smart cookie ey?! :D
Car makers should include a similar light built right into the door and could charge an extra $50usd more for the car... just sayin'
Bill A I though most modern cars had that already. My 2007 Outback does.
Hmm not sure my 2018 Honda doesn't have it here in the US. It's not mandated by law, so maybe they wanna save a few bucks.
It's actually 3 W's. ;)
I bet that void in the car door sill is for a light or reflector that is put on either previous models, or higher end models.
Funny, my ‘01 bug had lights in the door like that, but my ‘13 one just has a reflector. 🤗
I am already using these in my Maruti Suzuki Alto 2009 car for the last 3 - 4 months & they are working good till now.
Do these still exist?? Had one like that in 1995-ish
Fitted similar units last week to my wife's car and assumed reed switches,. Will now investigate with learned knowledge. She said 'hope Clive thinks they are OK' but did not get excited about the low quiescent current!! thanks.
car manufactures cutting corners. your car should have these lights factory
Some have
No shiat, for the last 20 years they should have been standard
Agreed, but these are for the door edge, not the panel face
I wonder if the recess at the bottom of the door is for a factory-fitted optional one of these. That's exactly where they were on a Mazda I once had.
Different position...
About the HMRC (well, sort of, from a German perspective): It is much easier to go after the local warehouses of chinese sellers than it is to go about getting taxes or tariffs from goods sent from China/Hong-Kong/Singapure/Malaysia to private individuals in GB/Germany/EU. At least that is the case for German law. The person who is responsible for paying the needed taxes and tariffs is the importer. If a private person imports, they often don't do it the "legal" way. Customs often let it go through, depending on the size and the shipping service used and just dumb luck. I personally don't order stuff for more than 22€ since that is the limit after which I have to pay VAT (Einfuhrumsatzsteuer, 19%) and since DHL started charging for their "loan" of that payment (about 10 or 15€ per order I think), it is way too costly to import from China in most instances if you go above 22€. I can declare it myself but it is a hassle, I need an ID for the customs office and have to keep track of more paper work etc. But if the seller has a warehouse in your country, he is (in theory) the importer and thus has to pay VAT/tariffs on the items in his warehouse, like any other British/EU based importer (like Apple importing iPhones from China). That cost is then usually passed on to the consumer, thus why EU goods of the same Chinese origin but sold by lawful businesses are more expensive. I guess some sellers get around that somehow and HMRC is miffed about that. Amazon has some sort of issue with that as well (in Germany at least). They handle some (obviously) Chinese items for Chinese sellers via their shipping and handling business (very convenient for me), but somehow no one pays VAT for it and the German gov't is sorta pissed. These days, a lot of warehouses from Chinese sellers are in the EU and I tend to buy middle-priced items from them (they sometimes still come from outside, but instead of 4 to 6 weeks, it takes 7 to 10 days or so to arrive). It's a bit more costly (TH6600 stepper drivers for 7€ instead of 4.5€) but I don't have to watch the 22€ limit and it comes earlier. Bremen, Flensburg and Frankfurt seem to be liked by them.
1M adhesive
I've got that beat with the adhesive on a LED strip that I bought. It's ƎM adhesive.
This is actually a brilliant idea, I deliver newspapers and I'm constantly in and out of the car. Sometimes if there's no traffic, I'll leave the door open to save the wear and tear on my plastic door handles (it's a Toyota, door handles are a common failure point, and I'm only out of the car 20-30 seconds at most each time) but there's always that chance someone is going to come speeding through... These would be (hopefully) more noticeable than reflective dots! My car doesn't have a rubber "doink" if I remember correctly. LOL But it's worth tossing a couple bucks at to see if I can find a way to make it work.
The Bad Dragon brick really needs to make more cameo appearances.
I think the idea is great but the issue I see with this is it isn't very bright and from a distance behind a vehicle may not be visible or may appear to be a light on something further down the road because it is a lot dimmer than other lights on the vehicle. This could actually fool someone into thinking there is no open door if they can see a light further down the road. Also, with the door wide open it won't be facing towards the back where traffic is most likely to be coming from. Cars I have seen with warning lights on the door have had it placed on the inside, not on the end, of the door to be seen from behind when the door is wide open but I imagine some may have it on the end too. Of course each country has their idea of what is required or allowed. Lit up like a fire truck is your best bet, right? LOL Just my opinion but I think really good retro reflective tape put inside the door AND on the end would work well. One advantage of this is it works even with dead battery or power failure after an accident. Likely most people would go "ewww that's ugly so I'm not doing that." Having been rear ended by someone texting while I was on the side of the road I'd vote for saving my ass over aesthetics anytime although if someone doesn't have their eyes on the road your best bet is super @#$%!ing bright strobes that they actually see lighting up the inside of their car and make them look up.
I hope people will not use this as a replacement for looking before opening doors. It will not come on soon enough to prevent dooring, or in avoiding the door the cyclist will still end up falling, or under the car following them (likely to close). I suggest always open the door with the hand furthest from the door, this tends to turn your head making it easer to see oncoming road users. But a good idea if used correctly.
People should get into the habit of opening the door with the hand furthest away from the door, it forces you to turn which makes looking for bikes much easier.
Charles Puffer - surely a driver should look in his/her mirrors (rear view and wing) before opening his/her vehicle door?
Yes, it also to get that last look in, also if becomes a habit. It is a practice promoted by the Dutch safety people.
On crowded streets there can be a lot of obstruction and blind spots.
Motor cyclists call that the life saver especially before turning right, as a biker I've saved at least three that way over the years
@@Mark1024MAK we would hope, but dooring is the deadly outcome of drivers not looking, or not seeing.
I've ordered a pack of 4, in amber.
I decided on amber because, in the UK, amber is the colour of hazard lights.
Quite a neat idea so much so I have ordered 4. Thanks Clive I really enjoy your video's.
If you remove your car doors there is no need to purchase these. 👍🏻
#justjeepthings
Genius
Or, just stay in the car forever.
I don't want the car, I just want the doors with the blinking lights on them. LOL.
Although I have a Wrangler and that is an option, I seriously doubt that I'll ever do it since around here, that would just mean water, road grime, and mud in the vehicle. Plus, it's so hot and humid here, I'll never remove the hard top either. If you live somewhere with little rain, humidity, and not excessive heat, removing the doors and top would be nice.
One way to check whether suitable space exists around a car door for these is to put a large blob of blu-tac in the desired area and close the door to flatten it to fit the space. Then just either measure the compressed thickness of the blu-tac or compare it directly to one of the modules. Simples!
Volvos used to come with lights (powered off the car battery) on the door edges, as a standard feature, which I always thought was a good idea.
Then Ford bought Volvo cars in 1999 and did some cost reduction.... by 2000 they were no longer fitted! They must have saved a fortune..... not.
If you save $2 per car and make 500.000 cars annually, you save $1.000.000 per year
@@pervariant Straight into the CEO's pocket!
My 1975 Toyota celica had them too.
I think that a lot of car manufacturers figured out that reflectors work just as well as the lights. If it is daylight, then the lights might not be that visible, but since you can see the door itself opening, that is probably not that big of a deal. At night, you're driving a car with headlights, so a reflector works well enough.
Ive got a Skoda Felicia. its done over 214 thousand miles. This year is its last. it will be an EVL Just ordered a set of these for it though. They have 5 LEds.
Your tear downs are always excellent. Thanks,
That 'odd' effect is 3 LED's switching, each with the same duty cycle. Try blocking off each one in turn, with your thumb or finger, and you’ll see it clearly. Nice idea, but useless in daylight, or when a cyclist or driver is not looking where they're going. There was something similar, on various cars, decades ago: It used 12V filament lamps mounted in the door, wired in parallel to the cabin courtesy light, and operated by the door switch. Simple and reliable. Another, even more reliable, option is to use one or more flashing LED's, with resistors, and a door-mounted micro switch or reed relay. No need for a PIC, capacitors, resistors, or other semiconductor devices. Again, it can be wired to the door switch.
1:56 - The first generation of Škoda Fabia had two types of these - reflective glass (if it was car with basic equipment) and light with 12V bulb.
I had first generation of Škoda Fabia (with basic equipment) as company car and there was only reflective glass on each door.
Now i have third generation of Škofa Fabia (with medium equipment) and there's absolutely no lights on doors.
"Progress"
These would be great for making working SiFi and Star Trek hand props that light up or model flying saucers and fantasy spaceships!
The spot you shown is going to be fairly common but some cars it's occupied. The one control I can think of off the top of my head that's roughly in that spot is a child safety lock. The factory very likely punched those sheets identical for front and rear doors but only punched out the hole on the rear doors, possibly even shared that particular sheet with other car's rear doors. If you don't have a spot and are determined, could always find someone good at shaping metal to hammer an indent into the door for it, something that size wouldn't be too difficult to accommodate without changing the shape of the door in the process.
Always interesting, always educational, always unexpected. Thanks, Clive!
:-) the door drawing was a little confusing until I remembered right hand steering, left hand driving, that gave me a chuckle. Tootles... Wade N.C. USA
I just had a shock off a capacitor in a camera flash. Wow I'll be double checking them in the future. 😂😂😂
First I thought they are using a reed switch and a 555 for blinking. I am getting too old, I recon.
It's cheaper now to use a microcontroller and solid state sensor. How times have changed.
I thought the exact same thing... that's how I learnt it in school
It is totally insane if you then see stuff like that: th-cam.com/video/sNCqrylNY-0/w-d-xo.html
Probably the power consumption of the classic 555 chip is higher than this more efficient micro's... not because it's activated for long, but in case someone leaves the door cracked longer, the button battery could be depleted. By the way the pattern flashing might be designed as power saving feature especially when it starts blinking each led individually (only one led on at any given moment).
did reed switches first have a metal contact inside in the old days ?
Poundland approves this video. Alibaba has received a large order now.
And Lidl and Aldi.
@Matt Quinn Does the e mark stop them selling junk?
@Matt Quinn Doesn't stop Halfords selling "blue" lamps. As long as the package states they're not legal for road use it seems it's fine. (Of course, all the pikeys ignore that bit and fit them anyway).
"A big rubber doink"???
Can you say that before the watershed?
Setiously though, what's your method/equipment/setup for producing those really high quality photos?
Gotta love a "Big Rubber Doink" 11:57 made me chuckle for some reason...
I wondered that too about the photos. I think you can do it with a dslr camera with macro lense and just print with any inkjet printer on large photo paper.
Next time, try putting it magnet side first, place the adhesive pad on the lamp and Peel off the paper over the adhesive and close the door. Pst Presto, the light should be set on the right place, perfectly aligned. Thanks for another informative video.
Except the adhesive won't actually touch the door. The gap between door and frame will be wider than the exact width of the combined lamp and magnet.
Perhaps 4 separate "M"s on the stickers (albeit one incomplete) might be worth one 3M. Who knows? Actually, when I buy such aftermarket car addons, I usually have to replace their sticky tape, which falls off after a couple of days with a proper 3M one, which simply works every time.
Hey Clive, you should always leave the jaws of your vernier calipers just slightly apart when storing, it saves the faces from any marring.
I guess the fact that it times out might help tell you if the magnet is doing its job properly when the door is closed. Close the door, wait for a while for the time-out to take effect (should the lights still be running unseen) and then open the door. If the lights don't come on, you know they've timed out.
'Adds a touch of class', Panache is the word your looking for Clive.
If a CR2032 lithium cell has a capacity of 235 mAh and the off position current draw is 22 uAh the battery will last 10,682 hours or 445 days, prob ~1 yr at most if used regularly.
I love how they (recycled?) the Captain America shield on the red plastic covering for the circuit board.
I bought a few of these in the summer (with 5 LEDs, several sequences and OFF timer, no case)... my car didn’t have quite enough room resulting in a smashed magnet 😁 Luckily the magnet can sit next-to rather than in-front-of the lamp
This is a great idea. I have been car doored twice on my bike. It is nasty.
It's no substitution for people looking before opening their doors. Get one of those annoyingly bright strobing front lights that gives any epileptic an attack in a 1 mile radius. I've held out so far but with the potential for someone to say "didn't you see my cheap Chinese door flasher" I think I'll now go for it.
How does this help against being doored? Unless you have a problem seeing the door in the first place, in which case I'd say you shouldn'e be on a bike.
superdau true. It might help in the dark a bit if they open it slowly and you are far enough away. Both of my crashes it wouldn't have helped. 20mph and opened just in front of me. Got a new bike and some good cash though so it wasn't all bad.
@@Wheel333 There's no substitute for giving vehicles a car-door's width clearance. In the UK the Highway Code's Rule 67 applies: "You should...Leave plenty of room when passing parked vehicles and watch out for doors being opened or pedestrians stepping into your path" www.gov.uk/guidance/the-highway-code/rules-for-cyclists-59-to-82
@@PhillipBicknell Leaving plenty of room is often not an option here in the Netherlands. Especially on busy streets. A car just parked ahead on your right, and cars zooming by from behind on your left. With anywhere from 1 to 2 meters of space in between them for you to ride trough.
*It's not a good idea* to give a car-door's width of clearance if you have to suddenly swerve into the path of heavy traffic to do so.
Plus it's hard to estimate if they want to exit the vehicle immediately or are they stalling and checking their phone still.
It actually looks like they took the time to scuff off the markings on the 8 pin chip, as you can see them slightly on the blown up hard copy
I don’t know what intrigued me more, these nifty door lights, or your Skoda Fabia, which I had to look up. We just don’t get these in the States. They look like neat little cars. (Not ready to trade in my F-150)
I guess it does the individual flashing to reduce the peak current so it doesn't kill the cell too fast as they are only rated for 5-10ma or similar.
If I had to build this I would just use a 555 and a reed contact. BTW I like the Skoda Fabia. I had one until about 1 year ago but it had to go because I got a lot of discount for a new golf. The Fabia never hade any problems in its 13 years I was driving it.
I was actually thinking tachometer for electric motors.. 9/10 when you get a treadmill motor the rpm / mph/ kph sensor is broken.. there is usually a pully with a magnet attached and a reed or a typical pull on switch deal that communicates an i/o with the main cpu on the board that im assuming has an algorithm that equates the size of the pully and magnet spacing to ticks the switch pings back to speed.. i have gotten several over the years and only had one actually work, until i poked it and it just stuck open like the rest. I’ve found that the security system window or door open sensors work great for a tach on that set up.
Maybe worth scoping the 3 LEDs...
They could reduce peak consumption by sequencing the LEDs within each ‘on’ period... so it’s only ever driving one LED at a time. Say 10mA on, vs 30mA on.
Small saving, but may help the battery life?
I wouldn't actually worry so much about whether it fits into a car door, but more about whether the magnet is close enough to turn it off, when the door is closed, since there will be a space of several mm to bridge between the hall effect sensor on the door and the magnet on the car body. Clive, could you somehow test that? I know, it's a riddle just like how to know whether the light in the refrigerator goes off when the door is closed, but I'm sure you'll find a way!
There's a little man who lives inside the fridge who turns the light on and off. As long as you make sure there's enough food and drink inside the fridge to keep him fed and watered, he'll continue to operate the light for you.
foxy likes the little box !
You can find out where it might fit using a bit of modeling clay (or a flour dough-ball). Stick it to the car where you want to test, and put a bit of talc/flour on the high spot so it won't stick to the both sides. Use a ball that is a bit larger than the device/magnet combo, and then close the door. It will be smashed down to the available-space size.
LEDs do not seem brute enough to be seen from a safe distance. Maybe they are to stick on the doors so you can find them after a car has ripped them off on a dark night.
Your sensor chip is a CC6207ST by "Cross chip." Datasheet is available in Chinese. LCSC.
I found the 6207 at LCSC.com the price is 1.8 Australian cents each.
Sorry that's 18 Australian cents each.
Link to product
lcsc.com/product-detail/Sensors_CrossChip-CC6207ST_C286001.html
Schematic does show a 0.1μF capacitor across it's power supply.
@@webchimp Thank you for the purchase link (Chinese language data sheet is also there).
What a BIG pcb you have there... ;-)
Or maybe he's just pleased to see it???
It's meant to be a joke... this is a specific case of comment, i call it "humor"... cheers...
if your interested in a fun little kit this one i just bought and built lots of fun and cool shapes and designs if you get this please post a video on how to program it. It has programing header on it just clueless how to use it.
Skoda was yesterday. Today it's Dacia. Get the barebones cheapest one, you wont be disappointed.
Oo, the programmer actually had enough time to design some nice extra feattures in without waiting for the Super DeLuxe model? Talk about overkill!
Very neat idea. I'm ordering some.
One could also modify these into a pair of cheesy techy cufflinks. It already comes with a stylish(?) case...
I never see things like that here in the USA. We must make sure the way is clear and that it is safe before we open the door to get out. If someone opens their door into traffic here in the USA It is their fault if it gets struck by another vehicle.
Just a thought... Basically, can't this be done with a CMOS version of good, old 555 like ICM7555 (TLC555 from TI). As I've heard, some of them work from 2V upward and also have an Iout of around 100mA. Temperature drift does not matter for the application. Of course, no fancy flashing mode changes but purpose is warning not disco dancing...
Thank you for another great video as per usual.
I would expect they would need about 1/2" to allow for the "rubber doink".
I think if the door was slammed hard enough it would still turn one of these to dust.
@@BigClive The way they are requires the door to be narrower by the diameter of them.
@@WilliamWallace14051 Most doors have an irregular shape that may accommodate the lights in specific areas.
they look like checkers/draughts pieces
Any old cop will tell you that that strange effect is called a wig-wag, back in the day our squad cars were set up with a switch that threw our headlights into that (well the bright side at any rate) and many undercover cars here in the US had bright blue and red lights behind the grill that used the wig-wag effect to draw the attention to the folks who were in your way when seconds count in life blood.
You must have no problem using chopsticks the way you manage holding boards & probes.
Found these and a 5led version. Probably a few months. Dozens of vendors on aliexpress
What's with the Soviet Star in the middle? Lol
The recess on you door is for you to mount an extra, reflector with lamp to warn drivers that door is open. No batteries needed
Another good video, thank you. Speaking of autos, Eric O on the SMA channel refers to positive leg switched and negative leg switched dc circuits. If you feel it would be within the scope of this channel, I would appreciate a discussion of the reasoning for chosing a negative leg vs positive leg switch in a given circuit.
Those are pretty spiffy! Now I want to add retro-reflective tape to the ends of my car doors.
That's what I did quite some time ago, and considering that these will only really show at night it's a good maintenance-free alternative.
Reflective tape is good but it probably relies on the vehicle heading towards the door having lights, this way even cyclists without any can see them.
@@nigelanscombe8658 True but riding at night here (California, US) without a front headlight is illegal and dangerous anyway. Me adding retro-reflective tape to my car doors is not at all required; I just want to increase visibility even though my car is white.
Martel DuVigneaud pretty sure it is not legal here in the U.K. either.
You still see some cyclists, or at least their outline, riding at night without lights though.
@@nigelanscombe8658 Not easy to spot though are they?
Surprised they didn't just go for a reed switch and some self flashing LEDs, wouldn't that be cheaper than the 8 pin IC and hall effect sensor combo?
You could use a photoresistor and some thin wires to test the lights while the door it closed
Amazing
The weird strobing mode looks like a robot poking its tongue out while alternately winking its eyes.
0:53 "Oh it's in chinglish" -bigclivedotcom
I would think a N.C tiny reed switch in line with the battery (instead of the Hall sensor) would drop the "OFF" current to Zero.
Probably not as reliable, sadly.
@@TechyBen Perhaps....
I have +20 year old Alarm reed switches on windows and doors that have not yet failed. Alarm detection switches seem to be more critical than blinky lights... IMO
@@lasersbee I don't mean fail. I mean for their use case. Perhaps they could not get it working with one?
@@TechyBen It is a simple sealed Magnetic ON/OFF switch in line with the battery. Only requires 2 connections as compared to the 3 connections of a Hall sensor.
How hard can it be ??
@@lasersbee Distance. I'm not saying it's hard. I'm saying perhaps they found a microcontroller easier to cover the use case they have. It could for example automatically turn off after 5 mins, to prevent it being on all the time etc.
So if you couldn’t tell if it turned off when you closed the door, you could keep it closed for a minute, and if you see the first stage of blinking you could probably be reasonably safe to assume it turned off.
I did some digging, couldn't find anything about hall effect sensors with 6207 on them, just voltage regulators and transistors.
Clive you should do a stream where you read the worst chinglish you have come across over the years/ chinglish in general... its funny and could get some views. Nothing like chinglish read in a scottish accent!
I looked up that car and I’ve got to ask, that looks like a tight fit there Brother. You’re a big guy and that car looks like a size 6 Ladies shoe.
I usually drive a van. This was my mums car. I do fit in OK though.
Though I struggle to envision a scenario where these lights would be the difference between knowing a door was open or closed, I suppose more visibility is never a bad thing.
I'd like to see some sort of product that used "Joule Thief" techniques to suck the dregs out of "spent" AA & AAA cells to charge a small 5v power bank.
At first I thought it was Kamen Rider Black RX's transformation belt buckle; from the thumbnail XD
You need to check local vehicle lighting regulations.
Here in Australia, ANY flashing light HAS to be Amber on a vehicle, other than on an emergency vehicle.
They can be had in amber, as well as blue, red and mixed colours.
www.amazon.co.uk/dp/B07KW4KZNR/ref=twister_B07KW49SZC?_encoding=UTF8&th=1
Tom George - So does that mean that you are risking arrest if you are a dick of a driver and keep repeatedly touching the brake pedal, so causing the brake lights to flash?
@@Mark1024MAK If you want to get really pedantic rear lights show in the infrared spectrum which is classed as a radio frequency so you need a transmitting licence
jos Touw - No, I was rather hoping that a vehicle with flashing brake lights would be pulled over / stopped so that the driver could be warned / educated that his / her driving needed to improve. As it is poor for efficiency and annoying for a driver following them.
I've gotten my fingers closed in a car door a few times. There is obviously space there or my fingers would be gone. The front passenger door is open, I think they are leaving it open so I can use the door frame as leverage to get out of the back seat, and they trap me in the door. I hate that. I hope that I just insist on the front passenger closing the door first before trying to get out of the back in the future, but I'm only human. My poor, poor fingers...
But i wanted to see them installed on your Robin Reliant!
Nice review
Thanks for sharing 😀👍
‘Car door warning light’ turns them up on ebay Australia, priced from $2.60 to $12 or more. In red or blue.
Unfortunately, these things don't seem to be allowed in European cars, and it's probably because of the flickering, so if they were a steady light, I'd feel much more comfortable with them, and I really like the idea of that. One could put one on each door on the left side of the car and would be much safer when parallel parking, especially when riding with passengers on the left side behind you.
Would it be possible to somehow modify these to stay on constantly, maybe by connecting 2 pins together or so?
I think this would make it use much more power, wouldn't it? Anyways, I've ordered a set and see what I'll do with them. Maybe I'll even try that.
I am trying to have it keep blinking after the sequence is over, I located multiple toggle inputs yet none seem to allow a proper restart
well we can assume that they went for open drain gpio pins on the uC but then the 27ohms resistor is the only thing between the led and ground (apart from the tiny channel resistance of the fet inside the uC so i wonder what current these things are running at and how good their lifeexpectancy is. 27ohms is way too little for my taste
Reminds me of some LED cupboard lights I bought from Poundstretcher many years ago that used a similar solid state switching setup with a cheap magnet stuck on a door, though they were quite rubbish, the batteries conked out after a week... :P
I'm surprised the hall sensor works on only μAs. They need a bias current to sense the magnetic field.
Yeah, instead of 3M you get the Chinese knockoff. Single M. 1/3 the sticking power, 1/3 the cost, 1/3 the quality.
Lets probe!!!
Best price! Best price! Best price! That's the only qualification the part suppliers care about. Doesn't matter if the product doesn't work or uses fake defective stolen designs. Best price!
The instruction manual was designed to thwart the frivolous lawsuit loving ambulance chasers xD
Clive, I'm surprised that you can fit into a Škoda Fabia.
he sat in, slammed the door and he did not find any shattered Clive body parts :D