Know How 76 (Transcript)
Today on Know How, you're going to learn what to do with all this stuff. That includes time lapsing with the Go Pro, fix it in your Doge, setting up your WiFi.
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Father Robert Ballecer: Welcome to Know How, it's the Twit show where we build, break, upgrade and show you how to reach your nirvana. I'm Father Robert Ballecer, the Digital Jesuit. This is the show we're going to pour the Know How into your head so you can take this stuff and turn it into something awesome. I want to get a word here from my TD. You know, Brian, I know that you've done a lot of stuff with GoPro in the recent future, right?
Brian: Yeah I have.
Father Robert: So tell me, is there something that maybe you could show the good fans at home that could teach them how to do time lapsing with the GoPro?
Brian: Yeah. It's a really good camera for doing that. And it's pretty simple to set up, so I did a quick tutorial and I could show you guys.
Father Robert: Well what do you think. Should we let Brian show them?
Snubbs: Do it!
Father Robert: Yeah, let's do it. Here we go. Time lapsing with the GoPro.
Brian: So you've used your GoPro to take a bunch of pictures and now it's time to turn it into a time lapse. Now an easy way to do that is to download the GoPro software from GoProm.com they have GoPro studios and it makes it easy to combine your photos together to make a time lapse. So once you're gone to the GoPro website and downloaded the software, you want to make sure you have your folders organized. I use two different GoPros for this project so I have two different folders containing different JPEGs. On the left is where you import files, the middle is where you can preview them, and the on the right will be your convert list. So I'm going to select all the photos that I had used. And the software has done is put those photos into little movies. Now most GoPro videos you're going to want to clip the beginning and end because if you're anything like when I use a GoPro I'm looking at it to make sure it's on, so trim the ends. And once you've trimmed your clips the way you want, you want to go into the advance settings and set what you want your photos to be. I went with 1080P. I want the photo size to be 16x9 wide screen so that it will fit better when watching on YouTube or something like that. Next you can select your quality - low, medium, high. I'm going to go with high and what I would also suggest doing if you're going to be doing multiple clips you want to keep the settings the same. Don't forget to check the box for keeping the settings the same for each clip. So now I'm going to add this clip to the conversion list. And I'm going to my second clip and I'm going to trim the edges because I don't want to see my face in the beginning of the time lapse! And now that I've done that, I'm going to add that clip to the conversion list and finally the third clip, I'm looking at the camera again. So I will trim it using the trim buttons down on the lower left hand. For the purposes of editing, I didn't move all the photos that I've time lapsed. I want to keep this kind of quick. So now once you have your clips on the conversion list down at the bottom right hand corner. You can convert them. this will change them into MOV's so that you can edit them. Now the next step if you want to edit these in the GoPro software, you can pick a template. They have a few that they've done before with maybe some popular GoPro videos that you've seen. I'm going to go with the blank template because I want to keep this pretty simpler to start with . Now that you have your clips in here, then you can edit them, drag them down to time lines. It's a pretty basic editor. If you want to do some serious transitions and some cool stuff you will definitely want to export your videos and use some other software like Premier or Final Cut but if you just want to do a simple time lapse, GoPro studios works pretty well. Now you can see this clip moves pretty fast. Setting is at 29 frames per second, that's just the default setting but on the right hand side of the software you see you can have a bunch of different options for adjusting your clips. So, since this is a pretty fast pace and it moves around a lot, I'm going to slow it down a bit so that it's a little less frantic. You also have options to change the color, white balance, a bunch of different things. And down at the bottom there are presets too, if you want to add some Instagram kind of effect to your video or give it a vignette. Next I'm going to move my other clip up against the next one and pull down the timeline. This one you can see the clouds moving off in the distance and stuff. It's still pretty short so I'm going to add another one at a fade by pressing the plus button down here and then I will add the last clip to the time line that I have. Do a couple of adjustments and then you can go to Export and you have a few different options of what you want to export as. Presets for YouTube, Vimeo. If you want to just load it straight to YouTube you can do that. That is what I'm going to choose. Alright, now that we've got our time-lapse exporting, let's take a look at the result. To make it a little more interesting, I did add a few more clips off camera so this time lapse I just kind of show whats it like on a daily ride in January in California. It is pretty dreary to begin with and then I had to pull over and get some clam chowder to warm but pretty cook effect with the boats moving in the background. I stitched the short clips together and blended, used the fade effect to make them a little bit longer but if you can leave your camera going for longer you'll make a better video. Made it to the beach, you see cloudy days do make for video time lapses when you're doing landscape; there's little bit more to look at. If you're doing the sunset or sunrise you may want to do 20 to 30 second shot photos. You have to remember that GoPro only has about 3 hours of battery life so try to remember that when you are setting up your GoPro for a long time lapse. It was a cold day but the top of Mt. Tam made it worth it. You can almost make out SanFrancisco in the distance. Looks pretty cool with all the clouds going by. So it was just a quick introduction into doing a time lapse. But now you should know how to do your time lapse.
Father Robert: Wow!
Thanks Brian. Now I have noticed
that any time you do a time lapse it is a really good way to sort of draw forth
the beauty of an environment. Especially San Francisco which has so many micro climates. That's great.
But Brian let me ask you. I know
that you use a standard GoPro. These things can do 4K right?
Brian: Yeah. But only the Hero 3 Black addition can. But yeah, if you want to do a time lapse and use 4K for that. The one I just did was regular resolution. But if you do 4K and a later time lapse we can zoom in, you don't lose any of that detail. So it makes it look cooler.
Father Robert: If you're taking 4K pictures you could always
zoom in without losing any resolution because you're only using 10AD or 720P of
that resolution. But my question is
this: what else could we do with time
lapse. What is floating around int he cranky hippo brain?
Brian: We next thing I want to do is make a simple mount for the GoPro where you use an egg timer and it will do a rotation around. That would be kind of a cool time lapse to do too. So that's coming up next!
Father Robert: Coming up next on Know How! Now, it's projects like that that remind us that we are geeks. We love to tinker. The stuff on this table right now is all the stuff that I've been working with just in the past week and in order to tinker we need the tools to do it right. Which is why I'm happy to have IFIXIT as a sponsor of Know How. Now ifixit.com is the free online repair manual for everything. Their free step by step guides are fool proof instructions to fix all your stuff. If you've shattered your iPhone screen, need to repair your game console, or swap the battery on your Galaxy S3, IFIXIT has got you covered. They have 10,000 repair guides for everything from electronics like your smart phone tablet and game console to your home appliances, clothing and yes, your bike. They can even hook you up with the parts that you need to fix it and everything that they sell is tested and guaranteed. IFIXIT also makes the most trusted repair tools for consumer electronics, including the Protect tool kit which my wonderful producer, Snubbs, is demonstrating right now. This kit right here is the pinnacle of the fixer, of the maker, of the gadget tinkerer. You get 70 plus tools which will assist you with any mod malfunction or misfortune that comes your way. The tool kit is the gold standard for electronics work from garage hackers to the CIA and FBI but more importantly their unique tools are used by repair technicians everywhere. They include IFIXIt's 54 bit driver kit with 54 standard specialty and security bit's. Now these are the bit's that are hard to find. The ones that you need to open up those cases that the manufacturers really don't want you to open. It's all in here. They give you Phillips bit's, they give you envelope bit's and torque security bit's, tri-wing bit's and even the triangle bit's. you know the ones that open up McDonalds toys. This kit has a bit for everything. They also have a swivel top precision driver and flex extension for a hard to reach screws. If you've ever had to work in those really tight angles and you can't quite get the full tool, they give you this really cool flexible rod that will allow you to have most of the driver outside of the case and only pushing the bit inside. It is SD safe and they include tools like precision tweezers for delicate manipulation for watches and clocks and they even have an antistatic wrist wrap that keeps your devices safe from accidental static discharge. They have nylon, metal and plastic tools for prying, scraping and opening devices without scraping them up. It's light weight, compact and durable and it makes on the go easy for repair professionals and amateurs alike. It is only $64.95 and it's backed by a one year warranty. Hobbyists and home DYI fixers also use the Protect Tool Kit for door knobs, eye glasses, cabinet doors, sink fixtures and more. In other words if it needs to be fixed, you can fix it with this kit. So here's what want you to do. We want you to fix it yourself with IFIXIT. Visit ifixit.com/twit for a free step by step guide. IFIXIT also sells every part and tool that you will ever need. Plus if you enter the code KNOWHOW at checkout you'll save $10 off of any purchase of $50 or more. Thats ifixit.com/twit and use the code KNOWHOW, and we thank IFIXIT for their support of Know How. Now seriously, Brian, I know that you've used this kit. This is possibly one of the coolest things that we have in the Brick House.
Brian: I use it to fix my glasses and that has helped me out a lot. One of the things I would really like to fix is my Dodge wallet. I've been having some issues with that.
Father Robert: Oh, thats right. Are you getting that weird out of sync/DV error thing?
Brian: No, 11 something exception. I filled up space and I'm going to have to delete some files.
Father Robert: That's actually a good call because we've had a lot of panic tweets and emails to the Know How account because people have been saying, "did I just lose all my Doge"? The problem is that they switched the Block Chains. Just because there have been so many Dogecoin that have been mined and unfortunately some people got caught in the switch. Now there is an easy way to fix it. I think what we could do now is maybe do a really quick segment on Doge Mining. Just an update for all of our Know How Dogers out there to both fix that syncing problem and maybe to keep your video cards from blowing up. Well hello there, you future Dogecoin billionaires. We've gotten some really good feedback on our Dodgecoin themed episodes including some really cool pictures of our father son teams. Some really interesting rigs but one of the things that bothered me was that in many of these pictures I could see the temperatures on your CG miner clients and it wasn't a good thing. Some of you are running temperatures up in the hight 80's, 90's and even 100 degree celcius. That's just no good. Here's an example of what happens when you exceed the thermal limit's of your heat dissipation device. In other words, when you cook your video card. This came out of the machine from the brick house that I believe being used to mine Doge. Now the person that did it should stay anonymous. But I know it was you, Jammer B! But we could've avoided it if we had followed some simple rules for cooling off your Doge miner. The first thing has to be air flow. Just make sure that you've got enough air flow flowing through the case. And if you've got a retail bought computer I can almost guarantee you don't. Because those computers were not designed for that kind of heat, that kind of constant use of the GPU. The easiest way to fix that is to take off the side of the case and put a supplementary fan. Some small thing. It doesn't have to be big. You could use a box fan if you wanted to go cheap. But something to just blow air over the surface. Now you're also going to need ambient temperatures that are cool enough to actually provide cooling to the computer. You can't block hot air back on the computer and expect it to bring the GPU temperature down. But watch that temperature gauge in the corner of the monitor and it should tell you whether or not your cooling is being effective. You want to get that temperature down and more importantly you want to get that heat away from the card, away from the motherboard. The second tip I can give you is to change the intensity of your miner. If you notice that you are getting blue screen and you notice that you wake up and your computer has rebooted because it got too hot, or if it freezes up, drop the intensity. Dropping it even 5 points can drop your temperature by 10 degrees and that makes a big difference. Now let's go on to something that I believe has a lot of people panicked and that is if your Dogecoin Wallet is on sync, if it's giving you a warning that it's no longer synced up with the block chain or if it's giving you a DV error. I know that is scary because it suddenly seems that you've lost your Dogecoin but there is a simple way to fix that. Let me show you how. The first thing you have to do is to download the updated Dogecoin Wallet. Now I don't want to give you a link, instead I want you to go directly to the dodgecoin.com site. Get used to this because this is the way to make sure you don't get a client that has been tampered with. You don't want someone putting in code there that is going to send your Dodgecoin to their wallet. You are going to extract this folder onto your desk top and then you need to change the settings, and I'm assuming that you are using a Windows computer here, to allow you to see hidden folders. Because we are going to have to get in one. Go to Start, Control Panel, Folder Option, then the View tab, select Show Hidden Folders Files and Drives and click OK. Your computer is now set up to allow you to see hidden folders which we're going to do when we navigate to the folder for your Dogecoin. (I.E.for me it's c:\users\Blackrobe\App Data\Roaming\Dogecoin) But for you, it's going to be whatever your user name is and wherever you stored your Dogecoin folder. Now this is really, really important. You need to back up your wallet.dat file. Copy it out of your folder. Keep it safe, make many copies and put them in different places. This is the file that actually contains your Dogecoins. If you lose that, they are gone forever. There is no way to get them back. Once you're copied your wallet.dat file you now delete everything out of this folder. Toss everything in the recycling bin. Now jump back into the Dogecoin wallet folder that you just downloaded and start up the client. It may take a really long time of this to sync up. It needs to download the entire new chain, which could take a few hours, and make sure everything is synced up. Once it is finished syncing, go ahead and close the wallet. Here is the key. Once it it's been synced up, go ahead and navigate back into that Dogecoin folder; the one that we had to enable the hidden folders to find. Copy your wallet.dat file back into the folder. Go ahead and overwrite the file that's in there right now. Once you've done that, you can reopen the wallet and everything should be back to normal except that now you are on the right chain. Hopefully those two quick tips can keep you cool and keep you Doging! Hopefully no one panicked when their wallet went out of sync. I actually got a couple of tear ridden emails saying "Oh my God, we've been pouring everything into this. We just finished mining 5000 or 6000 Doge and we're afraid it's all gone". There are actually easier ways to do this process. There are things you could do that would speed up the blocked chain re-sync. But the method I just gave you is the one that has the least potential for disaster. No matter what method you use to re-sync your wallet, just always remember that wallet.dat file is vital. That's where your Doge is. If you delete it, if you overwrite it, if you corrupt it, that Doge is gone. So protect it, keep it safe, have a back-up and Doge on!
Father Robert: Now let's get on to something that I think a lot of people in our G+ page wanted, and that is how do you properly set up a WiFi system? Many people just go to your Best Buy or Horizon Electronics, or go to Amazon and buy the router that had the highest rating, they drop it into their house and they think that they are done. But problem with that is that it's not optimized. For a minute let's just forget the fact that if you do that, you are probably leaving a huge security hole in your wireless network, it's also not optimized for wherever you live. There are so many tools out there, including the ones that are on this table, that you can get for free or very little, that with just a little bit of effort you can turn your WiFi system into something that is rock solid. Now for all the advanced geeks out there we are going to talk about 2.4 Ghz wireless. That is 80211 BGN for in the 2.4 Ghz range. The reason we are in Ghz 2.4 instead of 5 is because a lot of consumer devises are still stuck on 2.4 and 2.4 is where most of the problems are because there is so little spectrum. Now, before we do this let's go over to my really poor drawing. This is a representation of the spectrum that we have for 80211 B, the 2.4 Ghz in the United States. Now you'll notice that it goes from Channel 1 to 11; you've seen this if you've bought a new router, you've seen it say what channel do you want? And most of you have probably picked Auto Channel, which means it's going to look through the spectrum and say I'm going to put myself in the first open channel. Here's the problem. You don't actually have 11 channels when you're talking about 2.4 Ghz. You have 3. There's only 3 non-overlapping channels at 1, 6, and 11. If you choose any other channel it's going to cause interference. That's one of the little secrets about WiFi. Apple devices which are notorious for putting themselves on channel 5 or 7. If you do that all you're doing is reducing the number of total channels that you can have in your home or your office. Don't do it. Always choose 1, 6 or 11. Now that I've gotten off that little soapbox, let me show you some of the tools that you can use to make your WiFi work a whole lot better. Starting with something on this - though is the Android version and you can get different software also for IOS devices. This is called WiFi analyzer. I'm going to kick this off right here it's going to show me all of the different AP's that we have here in the Twit Brick House. Now you notice that Russell, our IT guy, also suggests really good telephone systems to us, and has done a good job of separation. They are only on 1, 6 and 11. Now this may look like a mess but because I'm sticking to those primary channels, it gives me the best chance for getting a clear signal. And this in and of it'self isn't enough. You may know that we have sort of epic problems here in the Brick House, you can also look down the channel list here, the Mac Ideal list to see what AP's are broadcasting. This is handy in case you have more than one wireless source in your house. You could figure out where I'm standing - do I have a lot of signal, do I have very little signal, do I have no signal whatever? You need to look at tools like this as you walk around your space, as you walk around the house. Find all the different nooks and crannies where you might use a wireless device. Your laptop, your tablet, your phone; whatever it's going to be and check your signal strength. If that signal strength starts to dip you're going to have to make a couple of changes. Either moving in AP, changing the environment or getting another AP. Now this is a free tool on an Android device. You can also find it for IOS. If you want a tool on your Windows box, one of my favorites is called Netstumbler. Here's the problem. This program, although it's fantastic, does it work on every card? Right now, you're seeing this warning signal here saying "access denied" it's seeing the device but it doesn't work on this device. If you're going to use this tool, search the forums and find a device that works for you. If it doesn't work you're just going to to get the sign all the time. Otherwise this is a very good tool, it works just like the WiFi analyzer that I showed you. Now the tool that I prefer, and it does cost a little bit, this is actually a $200 tool and piece of software. If you could go to my products shot it is this right here. This little thing sticking out of the side of my computer is a Metageek WiSpy. It is a device that is dedicated to looking at the 2.4 Ghz range. I also have one of the 5 Ghz range but again we're dealing with just 2.4. The reason why this is unique is if you're dealing with a standard WiFi analyzer you're only looking at WIFI channels. You're looking at channels 1, 6 and 11 and everything in between. But if you have a Metageek WiSpy you can actually look at the signals that are not WiFi. You cut over to my screen you'll see what I'm talking about. Here we have a representation of all the 2.4 Ghz activity going on in the Brick House. You'll notice we get little bumps near those channel clusters. And you'll also notice that here we have a peek near 2 and 3, we have a peek near 8 and 9 and then we're getting all these bit's and pieces up in Channel 11 that really don't make it look good. You want a nice even curve. Any time we see those spikes and any time we see those hot spots what it's doing is that it's telling me there is something there interfering. Brian is going to run you a video that I took from Intera a couple years ago where we used this device to track down a device on the show floor that was causing interference. What we've done is we've hooked up one of these devices on the back of a laptop and we're looking at the signal strength meter and it's telling us that there is 2.4 Ghz signal that's not WiFi that's jamming up channel 11 and when we looked up we found out is was someone's cute little robot. It was one of these remote control devices that was operating in 2.4 Ghz and because it wasn't shielded and it was a bit too powerful it just obliterated everything that was operating in that channel range. If you get a WiSpy you could use it to walk around your house and find out what are those devices. Do you have a sonar system that is spamming all the channels? Do you have a microwave that is leaking 2.4 Ghz radiation? Do you have cordless phones that are operating in that frequency range and making your wifi dirty? Believe it or not those little steps can turn an absolute crap system into something that works really, really well. Alright so those are the tools that we are going to look at and the next thing we need to look at is how you set up your AP's. Right here I've got a DDWRT Router. This is an old Link system. What I like about these is that they are so open and able to be fiddled with but on the down side they have a bunch of settings that if you don't tread carefully can be a disaster. Brian, if you go back to my laptop this is actually an old version of the firmware but all DDWRT uses this. In the WiFi settings, if you go to the advanced settings it actually gives you the ability to change the power, the transmit power, and a lot of people who first start out think, "Oh this is great, the default is 28 let me put this up to 250 and I'm sure that now because I'm pumping out more power everything is going to be good". The problem with that is that when you start looking at the Chanalyzer when this finishes making this change, you're going to see a lot more of these dirty spikes near the channel 11and now it's getting spam and that's because this access point is pumping too much power, too much power for the filters that are built into it and now it's flooding into other channels and it's getting you really, really dirty signal. Dirty signal is horrible because it's only one direction and it just blocks everything else out. What you actually want to do, the proper way to set these things up, is try to make the smallest cell possible. Lower down the power, find the spots where you need wireless access and try to get away with the smallest amount of transmit power possible. Because that opens up that band for all the other wireless devices that you have in your home. Let's go back to my wide shot. A lot of people do something like this where they will take their router and let's say, they will just drop it right here. Here's a wireless router, right next to TV and Cable modem. The problem is that now it has to transmit to all parts of the house and you may have different construction: masonry, copper mesh, and that's all going to affect how that signal propagates through the house. What a lot of newbs will do is pump up the power to push it through the hour but that means that now when I'm sitting in the bathroom I may look like i have signal to my tablet but the problem is that's only in one direction. The tablet still has to transmit back to the access point which is through all the same gunk and therefore I have issues. Rather than taking that one AP and boosting up the power, what you want to do is find the dead spots and install other AP's. Smaller routers, at a much lower signal strength. And what you do is that you set it, say, this for Channel 1, this for Channel 6 and this for Channel 11. When you have that, they are no longer competing with one another, I can now blanket the entire house with the minimal amount of transmit power which means my devices don't have to screen, which means my battery lasts longer, which means I get higher through-put, which means I am happy padre! That's how that works. Now there is one little trick that you are going to want to now before you start buying extra routers to toss into your home and that is turn off the DHCP. I cannot tell you how many times I've walked into a family members house and they've turned on DHCP on all their routers. Which means every time it moves from one room to the next, one AP to the next, it has to renew it's DHCP address, instead you choose one device that is going to be providing all your DHCP services and for everything else you turn it off. You just shut off the DHCP so rather than acting as a router those extra routers are acting as access points. Wireless access points that serve out the same DHCP pool. The IP address pool, from that initial connection. Now these are just a few things that you can do, this is really wireless 101 and again this is operating in 2.4 Ghz. We are going to do a more advanced episode in the future that is going to show you how you can use 5 Ghz to really push it forward. But before we move on I want to give you a few more hints. The first is antennas. Antennas are great. I love antennas. They increase signal sensitivity and they allow me to get a bit more range out of my devices. But you have to know what they are used for. This is an omni directional, which means it's going to be blasting out energy in all directions. It can be helpful if your have a round room, but you would prefer to have something like this. This is a panel antenna. This antenna, if you view my product shot, is only going to shoot energy in one direction. You can limit the amount of back scatter and you can also increase the sensitivity from one direction. If you want to get really crazy you move from the panel antenna into something like this. This is an old fashioned shot gun! This gives me a really narrow abyss of direction that it's going to shoot energy down and receive energy back, in order to give me a really nice directional pathway to the devices I'm going to be using. What you can do is study up on antennas, find the different kind of radiation emission patterns and then choose the ones that work best for your house. Now Brian, tell me with all that information are you going to go home and fix your WiFi?
Brian: That's the first thing I'm going to do when I get home!
Father Robert: What do you think is the thing you are going to do first? There was a lot of information here.
Brian: I'm going to use WiFi anywise and then I'm going to pick a channel first. That's the first thing I'm going to do and then the next thing is I will probably try to put an antenna on the other side of my apartment, because, like you said, my cable box is in the living room and then my bedroom is the furthest room away and that is where the signal is the weakest.
Father Robert: That's right. I think you've got it right. First thing you want to do is just check the channels and make sure you're 1, 6 and 11. That in it'self is going to give you a 20 or 30% gain over what you have, if you have conflicting channels. And that second thing, start poking around the settings of your router. Don't just turn it on and assume that everything is good. Actually jump in and learn a little bit about your wireless setup. That's all the time we have for this episode of Know How, we showed you a lot of stuff. How to do time lapse with the GoPro, we showed you how to fix your Dogecoin Miner and we showed you some basic WiFi set up techniques. If you want to find out anything, about any of the projects that we did, and find the links to all the little tools that I talked about, you're going to want to go to our show notes page. Because our show notes page is second to none. You will find that at twit.tv/kh. I promise that we will try to get that up as soon as possible. I'm trying to get it up within 30 minutes but my TD, Brian, he is really slow.
Brian: Oh yeah. Blame me, huh?
Father Robert: It's totally me. I'm just lazy. Also, did you know that you could reach us other than the show notes? You can email us at KnowHow@twit.tv but more importantly you can find us on our social media outreach. The best place right now is our G+ page. It is hopping. It is a great community. Brilliant people. Very imaginative people and people who can actually help you. It doesn't always have to be me! Go to gplus.to/twitkh. Join up with the groups and suggest the project for the future and I can almost guarantee that I will talk to you. You're going to see me in there all the time. In fact, any time I'm not in the studio I'm typically in the G+ page, either laughing at a comment or thinking about turning someone's idea into a future episode of Know How. You can also find me on twitter @PadreSJ. There you'll find what I do in between episodes of Know How and you'll be able to suggest something that you want to see. Finally, Snubs is my super producer. She's off camera right now, she's staring at me… what else do I need to tell the folks? She's giving me this sort of cat like thing. Oh, do it now! That's right. Now that you know - go do it!