hybridfree/eevblog-posts huggingface dataset:
Fastfox smart sensor band? - Page 1
Forum section: electronics / general

author: PioB
author_rank: Regular Contributor
timestamp: December 06, 2014, 01:40:23 pm
content: Hi All,I just came across this:http://www.pozible.com/project/187863which seems to be a sensor band sending fitness data to a watch using bluetooth. I am not sure I believe their specifications of 4-6 months of use, 19 months of standby on a coin cell, nor that an accelerometer, bluetooth chip and various glue can be had for 8 dollars to the end consumer... Should I stay away?

author: aon
author_rank: Contributor
timestamp: December 07, 2014, 08:59:52 am
content: Quote from: PioB on December 06, 2014, 01:40:23 pmYou probably should, as the campaign is just photoshopped images and marketing wank with no actual specs or prototypes to be seen anywhere.
Auzzie robotic kickstarter - Edison - Page 1
Forum section: electronics / general

author: JonnyBoats
author_rank: Regular Contributor
timestamp: August 06, 2014, 04:09:15 pm
content: Here is one from Australia (not Austria ).https://www.kickstarter.com/projects/937295081/edison-fun-robotics-for-tomorrows-inventorsA $35 educational robot that appears to have some nice engineering.

author: Kdog44
author_rank: Contributor
timestamp: August 06, 2014, 09:02:23 pm
content: That is a terrific price point for an educational robot!I really like the simplicity of the robot. Is it just me or do the buttons seem to be at the same level as the Lego block connectors?That could cause some problems if people try and stack the robots like in the video.

author: firewalker
author_rank: Super Contributor
timestamp: August 06, 2014, 10:01:13 pm
content: If only he had used an ATmega328 instead of MC9S08PA8, and had called it Arduino compatible... He could easily triple the amount of money at the end of the campaign.Nice educational toy btw!Alexander.

author: kc0ngu
author_rank: Contributor
timestamp: September 02, 2014, 07:51:25 am
content: Impressive pitch, I hope they deliver it looks like a great educational resource

author: Stonent
author_rank: Super Contributor
timestamp: September 03, 2014, 01:39:11 am
content: Those barcodes didn't look very dense. I wonder how they're getting the data into it?

author: fake-name
author_rank: Regular Contributor
timestamp: September 03, 2014, 04:12:29 am
content: Quote from: Stonent on September 03, 2014, 01:39:11 amSeems pretty obvious to me. The robot drives over them.That way, they get to exploit the fact that they already have line-following photosensors.

author: Stonent
author_rank: Super Contributor
timestamp: September 03, 2014, 07:01:40 am
content: Quote from: fake-name on September 03, 2014, 04:12:29 amI didn't mean electrically, I meant that the bar codes seem way to simple to contain a program.

author: daveatol
author_rank: Regular Contributor
timestamp: September 03, 2014, 10:58:07 am
content: Quote from: Stonent on September 03, 2014, 07:01:40 amThe barcode doesn't contain the program; it merely identifies which pre-programmed function/application to run. The barcode may only represent 8 bits of data - but that is enough to select any of up to 256 preprogrammed applications.

author: Refrigerator
author_rank: Super Contributor
timestamp: September 03, 2014, 03:54:11 pm
content: Seems like a fun toy, i wish my school had these.

author: corrado33
author_rank: Frequent Contributor
timestamp: September 17, 2014, 07:03:33 pm
content: That thing looks incredibly well built! Awesome little toy/educational device. Not to mention the (what looks like) extremely well programmed GUI (and Mac/Windows/Linux compatible too!)The project is funded already, I'd love to see these popping up in schools.
SWAG and YOLO come to crowdfunding - Page 1
Forum section: electronics / general

author: Sigmoid
author_rank: Frequent Contributor
timestamp: September 16, 2014, 04:09:07 pm
content: https://www.kickstarter.com/projects/1706255291/the-money-gunNo comment.

author: ferrix
author_rank: Contributor
timestamp: September 17, 2014, 08:41:16 am
content: So why doesn't he just run the prototype until he's got enough money to make them all?

author: mrflibble
author_rank: Super Contributor
timestamp: September 17, 2014, 08:53:52 am
content: Well, to make it reliably accept a variety of paper and eject a large number of bills at high speed without jamming ... that does bring some nice challenges with it. Certainly more interesting from an engineering point of view than the latest crowdfunded finger paint kit.
Kreyos founder never delivers ($1.5mn); spotted with Ferrari and shopping spree - Page 1
Forum section: electronics / general

author: tom66
author_rank: Super Contributor
timestamp: September 15, 2014, 09:39:20 am
content: https://www.yahoo.com/tech/indiegogo-campaign-never-delivers-product-founder-95369734464.htmlCan this guy be sued for fraud, or something??

author: Sionyn
author_rank: Frequent Contributor
timestamp: September 15, 2014, 11:13:18 am
content: more herehttps://medium.com/@stevekreyos/the-rise-and-fall-of-kreyos-new-ac4e2d847964

author: Kjelt
author_rank: Super Contributor
timestamp: September 15, 2014, 11:25:24 am
content: Sad that a startup falls victim to ruthless scamartists.

author: Rasz
author_rank: Super Contributor
timestamp: September 16, 2014, 02:57:54 pm
content: wah wah wah>Viewcooper sold us the LCDs at $15 USD each when the actual cost was only $5USDnooo, YOU RETARDS PAID some dude 3x the price of LCD.Actually no, there was no "us", there is only this Steve Tan guy running indiegogo campaign. He calls himself "us" to somehow appear as he is just a part of a company, and that company made all the mistakes, while in reality HE made those mistakes personally.He is the one to blame because he is an effing idiot and a fraud just like his subcontractor.>Our agreement we entered with Viewcooper/Pro Yang, is for us to buy a complete ODM solution smartwatches from himoh, so Steve Tan, guy running scampaign admits openly he ran whole thing just to resell chinese product. No design, no innovation, just find someone in china to make them one.I sure hope he gets sued.

author: tszaboo
author_rank: Super Contributor
timestamp: September 16, 2014, 03:38:32 pm
content: Ruthless people using gullible people for their benefit, nothing new here. If you pay for something based in some pencil drawing and 3D rendering made by someone from freelancer, because some 21 year old chinese guy in america calls himself the CEO of Mikkamakka technology LTD, you deserve what you get.
UP: Lighted Orientation Device - Page 1
Forum section: electronics / general

author: rthorntn
author_rank: Frequent Contributor
timestamp: July 02, 2014, 11:57:30 am
content: Brilliant, this guy wants $200K to build a lit spirit level bubble:https://www.kickstarter.com/projects/1205141447/up-lighted-orientation-deviceThe video is a classic.

author: MacAttak
author_rank: Unknown
timestamp: July 02, 2014, 07:09:50 pm
content: Heh. I really want to believe that this one is intended to be a playful commentary on the fact that damn near any stupid idea can get accepted by Kickstarter and possibly get funded. So I refuse to watch the video. I'm worried that he might actually be serious.

author: PointyOintment
author_rank: Frequent Contributor
timestamp: September 07, 2014, 04:09:48 am
content: I watched the video. Ithinkit's supposed to be a parody.

author: sleemanj
author_rank: Super Contributor
timestamp: September 07, 2014, 05:59:54 am
content: Maybe you don't remember your school lessons about mountain safety... maybe that's just an NZ thing.Being buried under snow can (so I was taught) be completely disorienting, you can mistake up for down, which if you are trying to get out, might be a bad thing.So the idea is not entirely as silly as the presenter sounds.

author: PointyOintment
author_rank: Frequent Contributor
timestamp: September 07, 2014, 06:41:28 am
content: Quote from: sleemanj on September 07, 2014, 05:59:54 amTrue, but I believe what you're supposed to do in that case is wave your head around while the avalanche slows down and stops, to make some space to breathe, and then spit and see which way it falls. You wouldn't be able to easily get the UP out and in front of your face while buried.

author: hlokk
author_rank: Contributor
timestamp: September 10, 2014, 01:50:27 am
content: Unless you're covered in a small amount of snow, you're not going to dig your way out anyways. What you need is an avy beacon and buddies with a shovel and snow probes. Although, some of the airbag or avalung technologies aren't bad, I don't think there's much point in knowing which way is up if you're not going to be able to get out of the situation by yourself anyways.
AirVR - VR Headset for iPhone and iPad - Page 1
Forum section: electronics / general

author: Stonent
author_rank: Super Contributor
timestamp: October 07, 2014, 01:02:35 pm
content: I saw this mentioned briefly in another thread but didn't find a separate thread for it.http://getairvr.com/The Kickstarter page has a video but the product to me looks like just a 3D printed case with a strap on it. There's lots of references to websites that indicate some kind of endorsement but clicking on any of them takes you to their home page.I'm not getting a warm fuzzy about this. Unless there's something special about that headset, China will be selling them for 5 dollars a piece in no time.Some of the features they list in their video are things like "Touch screen, retina display, 3g" those are all features of the iPhone, not the plastic strap...

author: janoc
author_rank: Super Contributor
timestamp: October 07, 2014, 01:53:32 pm
content: That is nothing more than a strap with a holder for your iPad and two lenses. The only thing interesting on that is the high resolution of the iPad display, nothing else. There are tons of similar things around:Samsung Gear VR (uses Galaxy Note 4):http://www.tested.com/tech/concepts/464299-samsung-and-oculus-vr-announce-gear-vr-innovator-edition-hmd/Durovis DIVE (also ex-Kickstarter):https://www.durovis.com/dive.htmlVRASE (another Kickstarter):http://www.vrase.com/If you want to build one yourself, there are even several cardboard versions:http://www.roadtovr.com/google-cardboard-vr-smartphone-adapter-vr-toolkit-sdk-io-2014/It is hardly new and hardly anything sensible has been developed for these gadgets - e.g. the DIVE is our for several years and you will find about 5 apps total on Google Play that support it. And most are just Durovis demos.These strap-your-phablet-to-your-face gadgets are fairly pointless - without having a way to interact with the device (e.g. a gamepad or something to track your hands) you are limited to viewing panoramas or non-interactive demos. That gets old very quickly, especially because it induces a lot of motion sickness, and has nothing to do with virtual reality - the ability to interact is essential there.Also some sort of universal support for these is next to impossible, because the software must pre-distort the image to compensate for the lens distortion - and that depends on the lenses and display size/resolution which differ between the different phones/tablets that are being used, fragmenting the market. That's why Samsung offers this only with the Note 4 phablet and nothing else - that is the same display used in the Oculus Rift DK2 development kit, so they have easier time to develop software for it, using the Oculus SDK.To conclude, I am working on VR applications for some 13 years now and I am really sceptical of the practical utility of these things beyond the 5 minute novelty effect. Unless you are a developer interested in working on it, don't bother. There is little to see there for a lay user so far.
2D Robotic Obstacle Detector  - Page 1
Forum section: electronics / general

author: hectorka
author_rank: Newbie
timestamp: August 27, 2014, 01:15:19 pm
content: Hi guys,hope to get some constructive criticism from you.The project is called Robogaia 2D Robotic Obstacle DetectorIt allows your robot to determine the distance to obstacles and walls and to avoid them.Here is the link :https://www.kickstarter.com/projects/1154457775/robogaia-2d-robotic-obstacle-detector

author: PointyOintment
author_rank: Frequent Contributor
timestamp: September 07, 2014, 05:48:32 am
content: I've been following the project on Hackaday Projects; I like the idea but I'm surprised you decided to go to Kickstarter so soon.There is too little text on your Kickstarter page; it's mostly photos. You need more text if you hope to convince anyone that they will actually receive a good product. IMO, you asked for too much money/too many backers; there are not likely that many people who both want such a device and will find it on Kickstarter during the campaign. I find it off-putting that your device has two USB connectors, one of which is used only for power; the usual method for drawing more current from USB is to supply a Y-cable with the device. That lets it work with both USB hosts that only supply 100–500 mA per port and those that can supply more. Also, it definitely should be able to be used with controllers that aren't USB hosts (e.g. Arduino), in which case the USB power limitation would be irrelevant anyway.The video is one of the worst I've ever seen:- the animation, while a bit entertaining, looks very unprofessional- the music drowns out your voice- the lighting is bad- I can't hear about 15% of what you're saying.I will be brutally honest: I think the campaign would have been better with no video than with that video.Hopefully you find this helpful if you decide to try again. Also, I suggest you have a look at some successful KS campaigns to see what they did.

author: sunnyhighway
author_rank: Frequent Contributor
timestamp: September 07, 2014, 03:34:18 pm
content: I don't know what they were thinking while they made the comparison list.They are indeed a killing competition for the Hokuyo, on both specs and price.But they shoot themselves pretty much in the foot by comparing the Robogaia with the RPLIDAR.For only twice the price of a Robogaia you get with the RPLIDAR:- 2x the angular range- 7.5x the angular resolution- 4x the detection range- 5x the scan rateThis makes the price argument for the Robogaia look pale, even if they are able to match the distance resolution of the RPLIDAR, which is <0.5mm for distances up to 1.5m and increasing to 12mm at 6m distance.

author: janekm
author_rank: Unknown
timestamp: September 07, 2014, 04:52:02 pm
content: I couldn't find a figure for the accuracy of the distance measurement in your description.Also, does your claim of 7.5 degree angular accuracy include the field of view of the optics?Other than that it looks like a neat idea!
Conductive Sticky Tack - Any Use For This? - Page 1
Forum section: electronics / general

author: AllenMPan
author_rank: Newbie
timestamp: August 28, 2014, 05:31:51 pm
content: Hi Everyone,A while back I posted a project of mine asking for opinions, and I got some great feedback. I've since put together a small Kickstarter for Conductak, an electrically conductive sticky tack:https://www.kickstarter.com/projects/1474433053/conductak-stick-circuits-anywhere/The funds would go towards tools and materials to get me past the prototype phase into something commercially viable.Questions? Suggestions? Would any of the forum-goers here have a use for this stuff?

author: ferrix
author_rank: Contributor
timestamp: August 29, 2014, 03:27:09 am
content: My first reaction is "neat, this would be great for kids".What materials are you using? Anything that would be potentially bad to get into eyes or mouth? Any scary bio-interaction like carbon nanotubes are becoming known for?For my own totally ghetto uses, I would probably just continue to use Wire Glue, which is of course not re-usable but once dry I will bet it conducts way better than your thing will be able to do. Your stuff will be good for instant play-doh type connections, where wire glue does not have any bulk or instant adhesive grip.

author: abaxas
author_rank: Regular Contributor
timestamp: August 29, 2014, 10:35:01 am
content: As long as it's edible or non harmful if ingested, it'll be fine for kids.Nothing I can find on the KS page to say either way.

author: AllenMPan
author_rank: Newbie
timestamp: August 30, 2014, 07:28:35 pm
content: Thanks for the replies!ferrix, I'm mostly working with graphite and nickel powders. It's all pretty benign, although some people are sensitive to nickel and I could imagine that if they stuck the stuff to their skin it could irritate it after a while. I'm working on the conductivity, and hopefully I'll be able to beat wire glue's 13.16 ohms per cm^2 (although I still haven't figured out the best way to measure conductivity of a putty, since it's not spreadable like a paint. Maybe contact resistance per cm^3?)abaxas, it's...probably not edible? It's not on the Kickstarter page because I didn't want to make any definitive claims either way without further testing. It's not certified non-toxic, but none of its constituent parts are toxic. I haven't eaten it myself, but the polymer is the same used in chewing gum, and graphite is fairly nonreactive. The trouble would be the nickel, I'm not sure what would happen if it were ingested. Swallowing an old nickel coin is probably okay, but the putty may have more nickel surface area because it's a powder. Best not to try until I get an MSDS
Om One: Floating speaker? - Page 1
Forum section: electronics / general

author: ferrix
author_rank: Contributor
timestamp: August 12, 2014, 07:16:22 pm
content: http://bgr.com/2014/08/12/om-one-levitating-speaker/http://www.omone.com/om-oneI thought part of making speakers work well was thinking about how they would resonate with their case and surroundings. Don't some speakers purposefully drive the surface they are placed on, in place of even having a cone?It seems to me like this floating one would just be wasting power for a quieter sound. Please, people who know more than I do: opinionate.

author: Richard Crowley
author_rank: Super Contributor
timestamp: August 12, 2014, 07:25:03 pm
content: Is it a unique "art piece" and "technical novelty"? No question. It is cool and who wouldn't want such a thing on their desk?Is there something about using a sphere to diffuse and distribute sound waves in an omnidirectional pattern? Yes, but only at high frequencies for something that small.Does the diffusion sphere have to be levitated with no physical support to be effective? Certainly not. This principle has been used for many decades via conventional technology.Is the significant extra power required by levitation justified? Not on the basis of any acoustic performance. It is only for show.Are the claims made in the video logical? Not IMHO. They are full of marketing wank, doublespeak, and steam is still rising from the piles of animal waste.

author: Refrigerator
author_rank: Super Contributor
timestamp: August 13, 2014, 12:22:45 pm
content: Quote from: Richard Crowley on August 12, 2014, 07:25:03 pmWhat People Are Saying."I didn't believe it until I saw it -- there's something weird about walking toward a beat, only to realize that it's coming out of a rotating orb, floating in mid air. That's some cool sh*t. This will make a great gift!"Nope, it's already cold.

author: Whales
author_rank: Super Contributor
timestamp: August 25, 2014, 11:47:15 am
content: The Dre-Bose law of speakers: it probably sounds bad, especially compared to other items of the same price.(albeit the competitors probably can't levitate)

author: Refrigerator
author_rank: Super Contributor
timestamp: August 25, 2014, 03:35:19 pm
content: It's cool that it can levitate, but it's lame that it can only rotate over one axis.

author: jackbrouno
author_rank: Newbie
timestamp: August 27, 2014, 11:49:01 am
content: That suppose to be lame that it only rotates

author: Richard Crowley
author_rank: Super Contributor
timestamp: August 28, 2014, 02:18:09 am
content: Now, if it looked like the fictional "Mueller Device" invented by Milo Rambaldi, I would buy one in a second.Reference: TV show "Alias"
RPiSoC: A development board with Raspberry Pi compatibility (PSoC 5LP) - Page 1
Forum section: electronics / general

author: miguelvp
author_rank: Super Contributor
timestamp: August 27, 2014, 04:21:21 am
content: Interesting KS using the PSoC 5LP to complement the RPihttps://www.kickstarter.com/projects/embeditelectronics/rpisoc-a-development-board-with-raspberry-pi-compaToo bad the $44 pledge that includes a free MiniProg3 made by Cypress Semiconductor ($90) are all gonebut there are plenty of $39 pledge levels and if you don't care about the R-Pi, you can still use it stand alone.With all of the I/O's it's a better deal than the SchamrtBoard PSoC 5LP dev board at $35, but programming on both is via the bootloader.I would have been all over it if they still had the MiniProg3 available or If I did care enough about the R-Pi.They have a lot of demos and videos so it seems they have a good foundation already and I don't see them having any trouble getting funded.I'm not associated to them, but the KS announcement showed today on my PSoC Creator.Not sure about what their lab in a box code can do in detail but looks cool.But with the Cypress Pioneer being only $25 and it comes with both a PSoC4200 and the 5LP (that can be used as well, although not that many pins exposed for usage since it's used as the programmer in the pioneer board), So I won't be jumping on it to wait until January.The SmartBoard is back-ordered, and it's pretty breadboard friendly for $30http://www.schmartboard.com/index.asp?page=products_dev&id=652Anyways, it seems to have a good value with all the documentation and code (the KS not the SmartBoard) but since I have a bunch of PSoC4200 that are going to be plenty for my needs I'm going to pass on this one.I do wonder if the PSoC 4200 Prototyping board ($4) can be used to replace the programmer other than it doesn't have the reset and in the board it's implemented with a push button. Maybe it wouldn't be hard to modify the break away part to make a cheap programmer.http://www.cypress.com/?rID=92146Of course they have programmable digital and analog on top of the Cortex M3 32 bit Arm.
MicroView - Page 1
Forum section: electronics / general

author: sleemanj
author_rank: Super Contributor
timestamp: March 18, 2014, 09:56:28 pm
content: https://www.kickstarter.com/projects/1516846343/microview-chip-sized-arduino-with-built-in-oled-diMake sure you scroll down the page.

author: apelly
author_rank: Unknown
timestamp: March 18, 2014, 10:32:18 pm
content: Interesting. I was wondering what the hell you were talking about, but it's pretty bloody obvious when you get there

author: EEVblog
author_rank: Unknown
timestamp: March 18, 2014, 10:51:16 pm
content: Marcus was on the Amp Hour yesterday.

author: Skimask
author_rank: Super Contributor
timestamp: March 18, 2014, 11:13:22 pm
content: Me thinks I'm in for a couple.I would go in for 20, but I can't possibly justify it (nor could S.W.S.B.I.)

author: FrankenPC
author_rank: Unknown
timestamp: March 19, 2014, 04:12:53 am
content: Weird...just the other day I was wondering why no one had created a micro-controller with a display on it. And here it is. Being cereal here. This is really strange.

author: scientist
author_rank: Frequent Contributor
timestamp: March 30, 2014, 05:46:42 am
content: Clever. I'd really like to know where they get the OLEDs.

author: CanadianAvenger
author_rank: Regular Contributor
timestamp: March 30, 2014, 05:58:21 am
content: Sparkfun is making them, so my guess is that it's the same OLED display they already sell.https://www.sparkfun.com/products/11315[edit actually not the same one... microview is mono, and the one I lined to is colour, but my guess is that it's from the same supplier that sparkfun is already using]

author: MLXXXp
author_rank: Frequent Contributor
timestamp: March 30, 2014, 02:41:12 pm
content: Quote from: scientist on March 30, 2014, 05:46:42 amWho makes them or who they buy them from?WiseChip makes them:http://www.wisechip.com.tw/style/frame/templates15/product_detail.asp?lang=2&customer_id=2641&name_id=128417&content_set=color_2&Directory_ID=70278&id=380007

author: Smokey
author_rank: Super Contributor
timestamp: August 23, 2014, 12:05:03 am
content: "What to do when you screw up 2,000 orders"https://www.sparkfun.com/news/1575Ouch..Let me just say that when you actually manufacturer a product, one of the worst feelings ever is when you start getting customers calling saying their thing isn't working right and you realize you screwed something up. That feeling of relief you get when you finally ship some stuff under the gun is very very quickly replaced by wanting to crawl in a hole and die. Oh the joys of engineering manufacturing.Good thing I've never made a $50,000+ USD mistake.... I'd still be crying..
Self sustained electric generator - Page 1
Forum section: electronics / general

author: notzippy
author_rank: Regular Contributor
timestamp: August 20, 2014, 03:48:08 pm
content: Who wants to play what is missing in this video ?It is a closed system wich can generate a "free" magnetic movement transmited to a mechanical alternator. The secret is found in three things: modified driven motor, modified alimentation frequency and the special setting of the permanent magnets situated on the edges of the non-magnetic discs (of the motor-alternator coupling).https://www.indiegogo.com/projects/self-sustained-electric-generator--2

author: PlainName
author_rank: Super Contributor
timestamp: August 20, 2014, 10:34:06 pm
content: QuoteMovie making skills, despite having 40 (passionate!) years iof experience n the game.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: August 20, 2014, 11:39:02 pm
content: Quote from: notzippy on August 20, 2014, 03:48:08 pmBrown Note?Tim

author: miguelvp
author_rank: Super Contributor
timestamp: August 21, 2014, 02:48:16 am
content: It's obvious what is missing, plug the motor to the generator

author: Bored@Work
author_rank: Super Contributor
timestamp: August 21, 2014, 05:54:37 am
content: Another day, another crowdfunding scampaign.

author: electrophiliate
author_rank: Regular Contributor
timestamp: August 21, 2014, 10:57:37 am
content: +1 for the previous guesses.Also, none of the "Select A Perk" options includes the product.Quote from: crowdfunding scampaignQuote from: crowdfunding scampaignThe noise was the most irritating part of the whole video (apart from the ridiculous poor quality "testing").

author: AmmoJammo
author_rank: Frequent Contributor
timestamp: August 21, 2014, 11:05:36 am
content: I reckon I'll pledge $5000! I'm that convinced by the video!QuoteI want us to agree, that you're a dumbass.

author: snoopy
author_rank: Frequent Contributor
timestamp: August 21, 2014, 12:00:52 pm
content: There's a sucker born every minute
tinyTesla: The Little Singing Tesla Coil Anyone Can Build - Page 1
Forum section: electronics / general

author: shinymetal
author_rank: Newbie
timestamp: July 20, 2014, 05:21:25 pm
content: Hey EEVbloggers, I came across this Kickstarter project for a little Tesla coil kit:http://kck.st/1mNd5cFWhat do you think?

author: Halfdead
author_rank: Contributor
timestamp: July 27, 2014, 03:05:11 am
content: I think it's really overpriced, but a neat toy nonetheless.

author: CanadianAvenger
author_rank: Regular Contributor
timestamp: July 27, 2014, 04:09:45 am
content: This is the second coil from OneTesla. I was in on the first one, and am quite happy with what was provided. It came a bit late, but they communicated fairly well throughout. [they had an issue getting the metal torroids manufactured] I would expect this one to run much smoother, and have no doubts that they will deliver on what was promised.

author: DavidGoncalv
author_rank: Contributor
timestamp: August 12, 2014, 11:25:35 pm
content: Hello fellow Artisan's Asylum inmate! I will definitely check your stuff out - pickup is available, yes?

author: Sigmoid
author_rank: Frequent Contributor
timestamp: August 14, 2014, 06:48:34 pm
content: I don't quite understand why the MIDI interface... Wouldn't it have been simpler and more useful to just make it a generic speaker with a line in?

author: bktemp
author_rank: Super Contributor
timestamp: August 14, 2014, 07:42:37 pm
content: MIDI has several advantages:Line in does not work very well because you can only switch the output stage on and off, so no analogue values in between.Most tesla coil driver circuits overload the mosfets/igbts to get the highest possible power. Therefore it is necessary to limit the duty cycle. This is much easier when you generate the frequency yourself.
BEHS Technology and Engineering Club - Page 1
Forum section: electronics / general

author: tim.vrakas
author_rank: Newbie
timestamp: July 30, 2014, 11:33:16 pm
content: ***I know, I know, I just signed up and now I'm Raising money. But I was subscribed to the EEVBlog Channel and I do actually watch them***Anyway....Some friends and I run an technology and engineering club at our high school, Brookfield East, in Brookfield, Wisconsin (USA).It's a really cool club, lots of nerdy people. We work on all types of projects, from hacking to fixing to modding to exploding.Well we have no source of money for tools, parts, supplies etc. We have some cool ideas in store for the coming year, so we decided to try out kick starter. We just launched it, and now we are advertising across the web!The Link is here if anyone is interested:https://www.kickstarter.com/projects/1950990943/be-high-school-engineering-and-technologyThanks! I hope we are successful!Tim VrakasPS: I LOVE THE EMOTICONS!Like I NEED these on my phone!

author: CronusWorks
author_rank: Newbie
timestamp: August 11, 2014, 08:48:13 pm
content: I suggest you look at starting a FIRST robotics team.It sounds like the kind of thing you want to do, and there are many companies that will sponsor your team because they already recognize FIRST.http://www.usfirst.org/roboticsprograms/frc/start-an-frc-teamYou'll still have a lot of work to do organizing the whole thing and finding those companies, so you might as well get started now.
Kickstarter - true " worldwide " MiFi box with Virtual Sim cards - Page 1
Forum section: electronics / general

author: kaz911
author_rank: Super Contributor
timestamp: August 19, 2014, 02:45:01 pm
content: Hi Guys,just wanted to let you know about 2 of my acquaintances KickStarter - The Anqor MiFi box. (<<= DISCLAIMER I know the founders so I'm not completely objective)In short - they have Simcards for data packages in their office. Upon startup the box queries the networks for best providers of data where you are - and then downloads a virtual sim card from the main office. The SIM card is then activated and you have data access.It is not super cheap - but for those who travel a lot I think it might be worth ithttps://www.kickstarter.com/projects/1354974479/anqor-the-new-global-device-get-online-anywhere-anThe founders have many years of experience doing MVNO software.

author: Rasz
author_rank: Super Contributor
timestamp: August 20, 2014, 08:55:55 am
content: patent? on what exactly?+ they will be a middlemen between you and ISPs, this might be ok for average (L)user, but most engineers are fine with 10 minutes it takes to buy local sim card and put it in your dual-sim phone.

author: Rasz
author_rank: Super Contributor
timestamp: August 21, 2014, 04:06:06 pm
content: Quote from: mojo-chan on August 21, 2014, 03:17:35 pmthis is the second part of my argument .. that I forgot to writeBusiness users pay so much for hotel, tickets, dinners, that they pretty much DONT CARE about costs of roaming.

author: Legit-Design
author_rank: Frequent Contributor
timestamp: August 21, 2014, 10:25:11 pm
content: https://goodspeed.io/goodspeed.htmlAlready57*countries supported. It's also already tried and tested real product that people can buy.*According to latest sources. More countries will be addedGood review of the device. No risk of crowdfunding, you can already buy this from the stores.http://www.techradar.com/reviews/pc-mac/networking-and-wi-fi/uros-goodspeed-1239946/reviewQuote

author: jeremy
author_rank: Super Contributor
timestamp: August 22, 2014, 11:32:15 am
content: this is cool. $60/month for 2GB in a whole stack of countries is a pretty good deal if you are a heavy traveller. Another problem with PAYG cards is that they can take 5-10 business days to activate (that's what happened to me on ee in england...), so by the time it works you've already left

author: miguelvp
author_rank: Super Contributor
timestamp: August 22, 2014, 02:34:25 pm
content: I have TMobile and when I traveled with the world plan it was around $1 minute. But now it's 20 cents per minute and unlimited texting and data abroad.Not sure why I would want a 2nd sim card/phone, it's not like I would spend more than 5 minutes on a call.Coverage: over 120 countrieshttp://www.t-mobile.com/cell-phone-plans/simple-choice-international-plan-countries.html
LiDAR! - Page 1
Forum section: electronics / general

author: rthorntn
author_rank: Frequent Contributor
timestamp: July 30, 2014, 12:05:29 pm
content: Hi,Been looking for one of those robotic vacuum lidar, this guy seems to talk the talk and walk the walk:https://www.kickstarter.com/projects/215756405/low-cost-open-source-lidar-for-robotic-systemsThoughts?CheersRichard

author: idpromnut
author_rank: Unknown
timestamp: August 01, 2014, 01:38:14 pm
content: Looks neat; a couple of issues however:- The "prototype" is more of a proof of concept. There is not much of the physical hardware that will survive to a final shippable device without more design work;- Will only ship to the US.I think he's got a good base to get to a prototype, but I don't think he's at the level where he can fulfill a KS yet.

author: rthorntn
author_rank: Frequent Contributor
timestamp: August 04, 2014, 12:48:38 am
content: It looks like there is international shipping now.

author: Halfdead
author_rank: Contributor
timestamp: August 04, 2014, 10:38:47 am
content: He does offer international shipping for 25$ last I checked, I backed it. Hopefully it gets enough funding.
Cooler with bluetooth and a blender gets over $7Million - Page 1
Forum section: electronics / general

author: CanadianAvenger
author_rank: Regular Contributor
timestamp: July 24, 2014, 06:31:27 pm
content: https://www.kickstarter.com/projects/ryangrepper/coolest-cooler-21st-century-cooler-thats-actuallyPretty well designed actually, and obviously they have built a pretty solid prototype. I worry though, that this will be a victim of its own success. They put no limits, and now have to deliver around 35,000 coolers!
oPhone Duo - scent based messaging (wut?) - Page 1
Forum section: electronics / general

author: 8086
author_rank: Super Contributor
timestamp: July 12, 2014, 04:14:57 pm
content: https://www.indiegogo.com/projects/ophone-duoFlexible funding, $150,000 goal, 10 people involved (at least).Something doesn't seem right...and that's before even considering the ridiculous concept.Some sort of scent cartridge/mixing device...send scents by messaging...assuming you have the right cartridges, that is.

author: miguelvp
author_rank: Super Contributor
timestamp: July 12, 2014, 04:43:01 pm
content: Cruder attempts have been around for a while and the technology is maturing:http://en.wikipedia.org/wiki/Digital_scent_technologyOf course you will have to create your own smells if it's something that is not in the database already.Edit: but it will probably fail like the iSmell did because the use cases are ridiculous low.

author: Bored@Work
author_rank: Super Contributor
timestamp: July 12, 2014, 04:51:55 pm
content: What? Someone copied my two year old idea of Fartatalk? Man, these Indigogo people know no shame.

author: sunnyhighway
author_rank: Frequent Contributor
timestamp: July 12, 2014, 08:01:35 pm
content: I guess, they are just taking the infamous "fart app" to the next level.

author: djococaud
author_rank: Regular Contributor
timestamp: July 24, 2014, 06:28:02 am
content: We need it !!!

author: josem
author_rank: Regular Contributor
timestamp: July 24, 2014, 07:53:27 am
content: Not sure why this is ridiculous, are farts the only application people can think of?Thanks in part to E-cigarrete companies who are dumping millions into scent R&D this sounds quite doable using current tech, at least they're in a much better position than previous projects.

author: josem
author_rank: Regular Contributor
timestamp: July 24, 2014, 09:27:12 am
content: Quote from: mojo-chan on July 24, 2014, 09:04:21 amWell don't stop there, coat it in thorium dioxide and you could be the creator of the world's first Fart Flashlight app (as well as give a new, genuine, meaning for "radioactivate fart")
ChargeAll's portable battery pack? - Page 1
Forum section: electronics / general

author: CronusWorks
author_rank: Newbie
timestamp: July 22, 2014, 03:35:10 am
content: After lurking on this forum for a while, I decided to finally make an account, and it's definitely not because my friends got tired of me ranting about ridiculous crowdfunding campaigns to them.So here's the most recent one I've come across:https://www.indiegogo.com/projects/chargeall-world-s-smallest-portable-power-outletNevermind the fact that this is a campaign for something that already exists (albeit larger and less appealing).Nevermind that the lamp the girl is holding in the slideshow has a different cord than is plugged into the device.Nevermind that the laptop cable in the video runs behind the laptop so you can't see if it's actually the same cable running into the device.Or that they think you could fully charge a MacBook Pro three times with ~65 Wh of batteries.Or that an iPad 2 uses more power than a MacBook Pro.Or this bit of nonsense: "In terms of the AC outlet, the small pack can support up to 12000 mAh and the large pack can support up to 18000 mAh max."I love this campaign because of this:"Most products fail in execution because the engineers/designers fail to realize the technological hurdles they will need to overcome during production."What do you guys think? Bad engineers? Or straight-up scam?The company seems to be real, but their products are unimpressive.http://chargeall.com/products/

author: Legit-Design
author_rank: Frequent Contributor
timestamp: July 22, 2014, 03:48:48 am
content: You have come to the right place!One thing to note that the forum search is sometimes no use at all.https://www.eevblog.com/forum/crowd-funded-projects/chargeall/discussion about this.

author: CronusWorks
author_rank: Newbie
timestamp: July 22, 2014, 11:12:36 am
content: D'oh.If someone wants to delete this thread then...
Led tester - Page 1
Forum section: electronics / general

author: robimarko
author_rank: Regular Contributor
timestamp: July 20, 2014, 11:11:20 pm
content: Hi.what do you think about this "Simple LED Tester"?https://www.kickstarter.com/projects/955316598/simple-led-tester-every-lab-should-have-one-0It is way too simple to cost that amount of money.Basically 3V battery and pads for different led sizes

author: Monkeh
author_rank: Super Contributor
timestamp: July 21, 2014, 01:02:35 am
content: I can do that with my multimeter.. Except for some of the white LEDs, which won't work on that, either."Not soldering iron friendly", because 0805s and a small battery holder are so hard.

author: Kdog44
author_rank: Contributor
timestamp: July 21, 2014, 07:20:38 am
content: I think its a neat toy, but from a practicable standpoint it is useless. Some suggestions to make it better (in my opinion)- was credit card sized- to make it thinner, use a smaller; custom metal coin cell holder and coincell.- used all smd parts to make it easier to assemble.- used some sort of a component holder for different LED sizes or made the contacts larger.
Autopilot shield for Raspberry Pi on IGG - Page 1
Forum section: electronics / general

author: Emlid
author_rank: Newbie
timestamp: June 03, 2014, 04:36:59 pm
content: Hey guys, we are crowdfunding our project.An autopilot shield for Raspberry Pi.You can do a lot of neat stuff with it like IMU, RTK GPS, Servo control.Navio features:MPU9250 - 9DOF IMUMS5611 - Barometric pressure sensorU-blox NEO7-M / NEO6-T - GPSPCA9685 - 13xPWM for servo controlADS1115 - 4xADCPPM/S.Bus inputDF13 SPI, UART, I2CRGB ledYou can find more info at:Our blog:http://emlid.com/blogAnd IGG:http://igg.me/at/navio/x/7174749What is your opinion on the project?

author: Danw33
author_rank: Newbie
timestamp: July 14, 2014, 11:26:25 am
content: Looks good, I've backed it for use with my new Hummingboard (also on order) to try in a little RC Plane projectThe Pi (or alternative) will need a Real-Time kernel for this kind of use, and as for the software for controlling whatever RC vehicle this is in, that could be interesting - maybe a fork of ArduPilot would do it with a few modifications? (there is already a Linux fork designed to run on the BeagleBone, and several kernel modules/drivers for sensors similar to those used with NAVIO).Anyway, looking forward to having a play around with this!
wifiex - Page 1
Forum section: electronics / general

author: kindiana
author_rank: Contributor
timestamp: July 06, 2014, 11:55:01 pm
content: wifiexSave your home internet for use outside of home?!For $200 you get a WifiEX which can be "charged" to 10Gb of internetwebarchive link:http://web.archive.org/web/20140706235206/https://www.indiegogo.com/projects/wifiexhttps://www.indiegogo.com/projects/wifiex/x/5142539#home

author: theatrus
author_rank: Frequent Contributor
timestamp: July 07, 2014, 01:59:39 am
content: What the...Any takers that "charging" this device is making your home PC into a malware endpoint, but they include a prepaid 3G account in the device to use up that "credit"?

author: Bud
author_rank: Super Contributor
timestamp: July 07, 2014, 02:02:39 am
content: This one is absolute winnerI at first tried to rationalize the idea thinking may be it was something similar to off-line browsing, i.e. some smart algorithm downloading internet sites based on your browsing history so you could browse the downloaded data offline then, but after seeing this answer from the team it gets my High 5 BS marks"And yes , we will also try to cover the whole planet with satellites for sure , so you will be able to have internet everywhere you go"

author: cyr
author_rank: Frequent Contributor
timestamp: July 07, 2014, 09:35:43 am
content: I think I know where they got this brilliant idea...

author: rob77
author_rank: Super Contributor
timestamp: July 07, 2014, 09:56:01 am
content: Quote from: cyr on July 07, 2014, 09:35:43 amof course it's wireless !but don't forget to return it to the big ben

author: miguelvp
author_rank: Super Contributor
timestamp: July 11, 2014, 03:31:29 am
content: https://www.indiegogo.com/projects/wifiexno workie no more, maybe their device ran out of internets.

author: Rasz
author_rank: Super Contributor
timestamp: July 11, 2014, 08:43:45 pm
content: http://www.amazon.com/Seagate-Satellite-Wireless-External-STBF500101/dp/B004Z0S7K6its just a wifi hdd with batteries.
Sonic levitation kit - Page 1
Forum section: electronics / general

author: Sigmoid
author_rank: Frequent Contributor
timestamp: September 16, 2014, 03:52:44 pm
content: This guy is either really cool, or the biggest douche of the universe.https://www.kickstarter.com/projects/richardhaberkern/ultrasonic-levitation-machine-learn-the-science-of?ref=category

author: zapta
author_rank: Super Contributor
timestamp: September 16, 2014, 04:01:03 pm
content: Quote from: Sigmoid on September 16, 2014, 03:52:44 pmCool. You can actually see the wave length. The plate at the top also seems to be important.

author: firewalker
author_rank: Super Contributor
timestamp: September 16, 2014, 04:06:05 pm
content: The plate is the "wrong termination". So, a standing wave is generated.Alexander.

author: miguelvp
author_rank: Super Contributor
timestamp: September 17, 2014, 12:19:25 am
content: Didn't Mike made a video about this? maybe it was someone else, but I recall seeing this before over a year ago.

author: corrado33
author_rank: Frequent Contributor
timestamp: September 17, 2014, 06:58:03 pm
content: Quote from: miguelvp on September 17, 2014, 12:19:25 amI agree, I remember seeing this a while ago. Not in a commercialized form, but still, it's been around for a while.

author: miguelvp
author_rank: Super Contributor
timestamp: September 17, 2014, 07:04:47 pm
content: Quote from: corrado33 on September 17, 2014, 06:58:03 pmYup, it was him:
0-1250V 20W power supply for makers running on 5-15V - Page 1
Forum section: electronics / general

author: ctech4285
author_rank: Newbie
timestamp: June 20, 2014, 07:58:31 pm
content: Hello guys,I am a big fan of seeing the reaction of a person coming in contact with 300V, seeing few hundred Joules capacitor discharge in 100us so I build this simple FlyBack converter to play with.It’s all open source and RC0 schematics and layout are available on Upverter:https://upverter.com/eda/#tool=schematic,designId=63aeaecec1b0d711Kickstarter link:https://www.kickstarter.com/projects/412473553/high-voltage-power-supply-for-diy-330-1000v-20w-10/The FlyBack converter consist of a Mosfet switch driven directly by a pic controller with a On time relative to VCC. The Mosfet rise time is not too bad, in the 40ns range. A resistor feedback divider coupled with the PIC’s comparator to detect if desired output voltage is reached before every switching cycle. The output ground is not isolate.There are some upgrades in the works because some users would like a clean output for vacuum tube audio and photo multiplier application. These are drive the converter in resonant mode by detecting zero crossing with the comparator in order to compensate for the ~pour couplings factor of the transformer causing noise and an optional output filter. Also a potentiometer adjustable output voltage from ~0-1250V. And controllable output voltage with an RC type PWM signal. (can you imagine a RC receiver with the power supply and a battery HAHAHAHAHA) Upgrading the PIC12F to something with more pins to accommodate the extra features.Anywho let me know what you thinkAndreas

author: T3sl4co1l
author_rank: Super Contributor
timestamp: June 20, 2014, 11:28:10 pm
content: Discrete version:http://seventransistorlabs.com/Images/HVPower1.pngTim

author: ctech4285
author_rank: Newbie
timestamp: June 22, 2014, 07:10:11 pm
content: Ha interesting Tim, it took me 3h staring at that to figure out how it worked

author: ConKbot
author_rank: Super Contributor
timestamp: June 27, 2014, 01:54:07 pm
content: Quote from: ctech4285 on June 22, 2014, 07:10:11 pmIts a royer oscillator (very commonly used to drive flyback transformers with re-wound primary for HV supplies) and a divider and op-amp for voltage regulation and a few transistors providing current limiting on the input side. Though I do like the pull up resistors and diodes to pull down the mosfet gates instead of the typical resistor/zener to the opposite leg of the oscillator approach.What is the transformer in the converter in the original post sourced from? It looks similar to a tazer/stun gun transformer.

author: ctech4285
author_rank: Newbie
timestamp: July 02, 2014, 04:12:36 pm
content: QuoteIt's homemade, ferrite core with 1:33 winding ratio, the magnetic path is not closed hence high leakage induction, which is fine as long as it run in resonant mode.The only reason why I did this that way was because it takes us ~6 weeks to get parts down here.

author: ctech4285
author_rank: Newbie
timestamp: July 08, 2014, 10:09:08 pm
content: Just 5 days to go!!
Dual boot Android/Windows on a PC platform ? - Page 1
Forum section: electronics / general

author: snoopy
author_rank: Frequent Contributor
timestamp: July 04, 2014, 05:33:31 am
content: Well not all PC's are supported but could be the start of something for PC suppliershttps://www.kickstarter.com/projects/mmv/console-os-dual-boot-android-remastered-for-the-pc?ref=category

author: QuantumPhys
author_rank: Contributor
timestamp: July 07, 2014, 04:01:41 pm
content: Trying to create a new ecosystem with stores and such can become very risky (just look at the Windows store). Unless this eventually developers into something like Oculus, and get bought out, the project may not turn out too well in my opinion. The idea is good though.