This is $1 MIPS/RISC-V Powered Chinese WebCam? | Part 1

yeah I already did the unboxing uh but here we go we're going to do the webcam the 1080p Drive free webcam oh yeah that's what you get HD web camera what do you want to bet okay well I'm recording it 60 frames per second oh I should bring in its audio and OBS too oh something all right um I've put it on top of the monitor so quite a viewing angle there first time I really saw my hair I guess all right and now let's go ahead and bump the resolution see we have uh photo see it's cranked up remember the the Box said 1080p 30 frames per second built-in mic h.264 and a 90 degree viewing angle I totally believe that it's got the 90 degree viewing angle foreign close and we'll just kind of fill up the screen here I need this camera here it's like fidgeting with the cameras it's my favorite thing to do that while Wireless comes on when the camera the lens is activated the uh I love how we have the little lens cap right and I'm not going to stick it on right now we have a little lens cap and you would do this kind of thing flip it right but uh I mean sure that does it's good to have a physical it's good to have physical privacy however the microphones what does that do for the microphones it doesn't do anything you need a physical switch in order to avoid getting hot miked so do not let yourself get into a false sense of security understand the attack vectors uh the see the the camera works yeah I think that's really the point now isn't it but now for a more interesting something a little bit more interesting okay LS USB and you can see I've got Arc International camera I bet that's it let's make sure first that we know which device it is nice trick is to use watch if we man watch we can see the differences and we can also change the interval so let's do that 10. watch n we're going to do every 10 seconds and Dash D then we're going to type in l s u s b all right so as you can see we've got the date up there at the top and we're going to refresh every 10 seconds so I'm going to wait for that to turn over and I'm going to plug back in my USB turned over we're going to plug this in wait for it to turn over it is indeed I believe the arc International camera see if that's the only one okay another useful thing I have it unplugged we're going to LS USB pipe that to word count minus L for line count there's 12. 12 lines there I'm going to plug it back in 13. all right so that camera nope you were right I was right it is the camera okay so it's that Arc this uh Arc International camera so let's take this LS USB Dash B and pipe to less and we're going to look for the arc I'm just going to look for camera aha okay here we go well it's a driver class miscellaneous device it's the U camera zero zero one now these oh so it's 200 milliamp these um these descriptors are going to come up here in a second okay interface video interface collection it's a web camera uh let's see interface descriptor so I'm gonna guess that because we're looking for both the video and the audio clock frequency is 48 megahertz so the good news is but it looks like it's only giving one USB device however so the reason why we're looking into these are is that on the box Boop on the box you'll notice that it says Drive free right no drivers required is I believe what that means but we've got um two USB standards which normally go together UVC and UVA okay let's see do we have anything more there's some video standards true okay so you notice that we have the width and the height here we go up here see we can do 1280 by 960. 19 20 by 1080 which if we go back to the Cheese app got the web webcam plugged in and we go to preferences we get to do this is where these are enumerated right so divided by 960 1280 by 720 let's just uh you know I by the way the when I did that I don't know if you can see this make sure that you can when you do this the um camera blinks the little green light blinks whatever let's keep going through these descriptors I'm curious if we see the h264 and we want to see if we can see the uh audio [Music] keep 16-bit resolution miscellaneous device interface Association that's a dive into what it's reporting to the operating system in order to function for our next step in the reverse engineering Rabbit Hole we're going to disconnect it from the computer I'm going to rejigger the camera and we're going to tear it down here we go this is what we're doing it's good enough for now well we'll notice that there is some nice screws there so let's get our screwdriver out trusty Radio Shack driver I guess we should get out the old pocket knife here and just remove that QC sticker there keep that there and just ah oh so positive now one of the things I really like about these super generic I'm going to say Chinese although it could be Taiwanese or anywhere really but the thing that I like about these is that you have pretty much reference Hardware like they're they're just not going to spend a whole lot of extra time on anything that isn't going to get the product out the door and so as a result you get a pre-vanilla product and a lot of times it's very much what you want so we already have a little bit of the reveal there but I'm trying to get this other screw out so I can basically so I can get it back in oh okay then I'll Stow the other one with it so that we're consistent is there a little knot in here no I can just kind of feed this through so those were not security screws Two Dads okay so there we go um let me zoom in all the way if I look at this oh it's upside down okay so I guess we put this to this tie I'm going to use my toothpick pointer so we put this little zip tie here likely so you can't yank the cable out and we have our CMOS sensor there is the microphone oh see see it looks like there's two microphones but there's really just one this is the other microphone Port so just one microphone port and I see already the main processor for the the main the main elements of the camera we have two LEDs this is the this is the power LED this one is the activated LED I am kind of need to get a microscope just because my eyes aren't so great anymore let's get some images okay here's what we have in generic t31 so that they didn't mask this at all um here's the USB cable there's our USB interface we have our CMOS camera we have our microphone our microphone thankfully goes into a little oops microphone goes into a little Port that we could definitely disconnect which is a great idea let's just do that I'm going to take these other screws out while we're here hopefully I have enough time I might have to cut this short because I have a meeting my day begins in a little while that one's a little small quite fitting okay we got wonder if it is actually a different size yeah that one who in fact I only needed to yeah so we've got the three screws that hold it held it to the chassis and then we've actually got the camera sensor itself I'm gonna try to not break it oh there we go yep who's this really in there and of course you could also snip that I just made this camera like 900 times more secure what you can do is put a little switch in here and I don't understand why more manufacturers if you're going to go to the trouble and I mean like I have a higher end anchor camera not to mention on laptops why we couldn't just put a switch there is beyond me I understand that on a low end camera they may not want to deal with the parts I'm going to go ahead and disconnect the USB interface as well we'll put that in later this way we can get a really nice view uh we'll take some pictures and get a really nice view of the board but for the most part on this side it looks like we just have the resistor resistor arrays I can't see very well but um you know so you're going to have your Associated resistors and capacitors the capacitors mainly for just like smoothing um there looks to be just these two main chips oops no Focus well find a microscope if I had a microscope that would be cool I am going to need to take the camera off the tripod and get a better idea of these chips like this is probably a good stopping point all right but wait there's more to this rabbit hole

Channel: Hacker Homestead

Views: 4,287

Keywords: riscv, RISC-V, Teardown, risc-v sbc, reverse engineering, linux, risc-v sbc linux, level one, reverse engineering tutorial, risc v, webcam, electronics, arduino, reverse engineering course, reverse engineering tutorial for beginners, risc-v linux, hacking course, electronics engineering, electronics projects, arduino project, arduino alternatives

Id: k74IR5cJufE

Length: 15min 23sec (923 seconds)

Published: Fri Mar 03 2023