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More from the Mailbag.
Mailbag
PO Box 7949
Baulkham Hills NSW 2153
AUSTRALIA
SPOILERS:
CrowPi Raspberry Pi Learning kit: www.elecrow.co...
And scratch programming.
Mr Fusion
Play With Junk RU-vid channel / @playwithjunk
LED Claytons Nixie Clock kit & Muzio - Music Reactive Led Lamp
8x8x8item.com
Sipeed MAIX : The World First RISC-V 64 AI Module for edge computing:
www.indiegogo....
Spacial microphone array and video camera face tracking demos
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Опубликовано:

4 окт 2024

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Комментарии : 406

@mikeselectricstuff 5 лет назад

"what's this LED doing" he says, as the LED flashes in exact time with his voice asking what the LED is doing..

@Nazgulxnl 5 лет назад

Exactly what i noticed.

@happens 5 лет назад

And it Beeps when you swear... ^^

@MattEnwright 5 лет назад

Yup, the buzzer, which I'm sure is probably on Pin 18... I would imagine could act like a crappy microphone :-)

@kozmaz87 5 лет назад

It is flashing because speakers and microphones are the same. It is a bimetallic beeper so probably it is picking up your voice as you are talking. Looking at the video it looks like it follows your higher pitches as one would expect it to do. :)

@skynet3d 5 лет назад

I was about to post the same :D

@TimeWasted8675309 5 лет назад

CrowPi is beautiful. Like a futuristic version of the RadioShack (tandy) 100-in-1 kits from the 70's. Awesome!

@retrotechandelectronics 5 лет назад

more like this ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-zi0XiJui8B4.html

@EngineeringVignettes 5 лет назад

But without the wires. And the springs. - Eddy

@bwebs956 5 лет назад

That is so far from my 200-in-1 it's not funny. 😀 The manual was fantastic though, I completely wore that out.

@spodula 5 лет назад

Yeah, but whats the point of the breadboard without anything to connect it to? Seems the headers were an oversight.

@dtwistrewind7361 5 лет назад

Looks like a robots pack lunch

@PlaywithJunk 5 лет назад

I'm glad you like my present... :-) Nice presentation, thank you!

@panopolis8051 5 лет назад

That RISC-V development kit is pretty neat, the MCU is from a company called Kendryte. To my knowledge, it's the first low cost chip using RISC-V, which is an open instruction set architecture (ISA). It's kind of a big deal, since most processors/MCUs use ARM or x86 which are not open specifications and require royalties, NDAs, etc. Bear in mind however that specific implementations of the ISA are not required to be open, so don't expect to be able to download the Verilog/VHDL code used to design this chip from Kendryte. There are some open source implementations that you can try out on FPGAs like the Rocket core. Also recently Western Digital announced that they will be open sourcing their implementation called Swerv, which they plan to use as controllers for their SSDs.

@Pete292323 5 лет назад

RISC-V is really cool, we'll be seeing much more of it in the future, Dave should do a video about it, maybe ask the devs to send a dev board.

@UpcycleElectronics 5 лет назад

Robert Baruch has done a few uploads about RISC-V on RU-vid (YT Channel is his name//no affiliation). Does anyone know of any other video references covering RISC-V, especially more top down explanations that are hobbyist friendly? -Jake

@autismosis69 5 лет назад

@@UpcycleElectronics Its probably not what you want but Linus from LTT did a video but its more of an overview of risc-v for pc applications. Might be worth a look.

@JWH3 5 лет назад

I'm extremely disappointed you didn't at least lift the hood on the CrowPi to see how the cabinet was wired. It deserves at least a 2 minute teardown.

@SuperAWaC 5 лет назад

even though these are his most popular videos, it's clearly something he has gotten bored of doing considering how quickly he discards some things without even putting much thought into them

@JWH3 5 лет назад

Hopefully he'll revist this one, even if briefly, granted I'd never buy something like this myself how modable it is within the enclosure for wiring your own stuff might make it almost worth buying.

@johncoops6897 5 лет назад

2 minute teardown? Fuck that - he already bored everyone with over SIXTEEN MINUTES of advertising that poxy thing.

@gcbzzzz 5 лет назад

or used a single component other than the keyboard and mouse. :/

@Carxstreetaccounts24 5 лет назад

Make a video then

@gabeeg 5 лет назад

I kickstarted the adv. CrowPi kit and it came with extra kickstartery goodness and I love the thing. Perfect for quick experiments or short little homemade programs with the kids. You can still use the io pins with jumpers etc, if you unplug the ribbon cable and use the bread board or your own. It is an excellent bit of kit IMHO.

@BlackWolf42- 5 лет назад

the flashing led on 18 seems to be triggered by your voice. It's listening to you and transmitting everything back to a server deep under Shenzhen.

@sprybug 5 лет назад

Yeah, noticed that too. Was probably interfacing with one of the sensors. Perhaps an audio sensor like a mic.

@EngineeringVignettes 5 лет назад

:)-

@MMageWarrior 5 лет назад

Its most likely a buzzer generating some tiny energy.

@trevor4370 5 лет назад

this is a modern version of the 150 in 1 kit Tandy sold when I was a kid. I had one and loved it.

@--Zook-- 5 лет назад

Exactly what I thought when he opened it.

@cburgess5294 5 лет назад

You were the envy of my younger self. My "rich" cousin had one and I lusted after it every time I went to his house. Of course I grew up on a pig farm so we couldn't afford such things. I had to grow up and become an adult with a full time job to be able to indulge my love of electronics.

@JacGoudsmit 5 лет назад

That Chinese address probably translates to something like "The guy in the cabinet under the stairs, second door from the right, knock three times" or something :-)

@richfiles 5 лет назад

It actually translated to "Henggang Hongmai Ms. Road No. 6 Yucheng Industrial Zone".. .Still... Wow...

@thanthanasiszamp4707 5 лет назад

@@richfiles the adress was born in...Vachina!

@SuperAWaC 5 лет назад

some parts of china are so dense that their addresses require the same amount of density

@wingho3542 5 лет назад

There are no standard English name for most Chinese address, people will confused if you "translate" them to English language and can't understand the address, so you better use Chinese pronunciation Why I know ? because I am the sender, welcome to my store 8x8x8item.com/

@caesarwu2248 5 лет назад

Hi, Dave, sorry for forget put intro paper into package, I have sending usage in the second mail, you can check it to use the face tracking PT, it just take 3 lines python to get it work!

@thanthanasiszamp4707 5 лет назад

if I want to mail my stuff to Dave, how can I do it?

@horusreloaded6387 5 лет назад

@@thanthanasiszamp4707 he puts PO box address in the description of mailbag videos.

@Orbis92 5 лет назад

That spacial microphone is amazing, thanks a lot for this cool platform . I'm totally buying a kit

@caesarwu2248 5 лет назад

@SebiTimeWaster we update the follower's tutorials: blog.sipeed.com/p/233.html

@phillipsofthedriver 5 лет назад

@@caesarwu2248 bummer about your url. it looks rather urinary. pretty cool stuff though!

@draiverx 5 лет назад

I think the guy with the no crocodile dundee sticker also saw how AvE is doing the unboxing and got scared. so he considered that it is advisable to put that sticker.

@dufflepod 5 лет назад

You've never heard of RISC-V Dave? Get googling. Open source instruction set and wotnot.

@whatever7338 5 лет назад

Dont think Dave is much into digital stuff

@DrFiero 5 лет назад

Total flashback to the 70's when I was freaking out with my new 150-in-1 electronics kit from Radio Shack!!!

@bobbybiggs4348 5 лет назад

That LED seemed to be responding to sound. Did anyone else see that?

@leesully1669 5 лет назад

Yep... I did!!! And Yelling Dave at the screen doesn't help...

@plurallydial 5 лет назад

I saw

@Darieee 5 лет назад

Dave, regarding the filming of LCDs ... whenever I do it, I slightly defocus the camera, ... get the image blurry enough to null out the aliasing but clear enough to make out text

@kennedysama 5 лет назад

pretty sure that risc-v is a open source cpu architeture thing

@AtmelKiller 5 лет назад

Kennedy Vieira Yeah it is. Linus from Linus Tech Tips covered this pretty well.

@Bobbias 5 лет назад

Yeah, risc-v is an open source cpu architecture. There's also a company that allows low quantity custom SOC design and manufacturing using risc-v.

@GeekMustHave 5 лет назад

Love the video. Especially the kick starters. We got a package from China this week that had printed on the instructions. "We professional, we excellent", I should have kept the box but, I think that's our new motto. Keep broadcasting!!

@MegaAndroyd 5 лет назад

Dare you to take that on a plane.

@tolkienfan1972 3 года назад

With some white playdoh

@SolaLupus 5 лет назад

Nice to see chips based on the open-source risc-V core poping up in the wild. The sipeed with microphone array would make nice platform for diy alexa-based assistant.

@-argih 5 лет назад

The pseudo nixie tube thing is not an original concept, techmoan did a video on several systens like that but a lot better several months ago

@GollumReloaded 5 лет назад

Yup, just get the much better original, also called "Cronixie". Techmoan did a great review about it and got all the necessary info: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-miqN2gR1Zns.html

@CathyInBlue 5 лет назад

@@GollumReloaded And after I went through all the trouble to find that video the hard way with the intent to post here. Nice work.

@EngineeringVignettes 5 лет назад

I'm guessing Dave does not follow Techmoan... Or play Minecraft .. - Eddy

@mycosys 5 лет назад

You cant buy them (I suppose you could probably commission them) - but check out the giant lixie tubes a friend made for 'Zumbo's Just Deserts' (Cooking show in Aus) hackaday.io/project/13366-giant-nixie-tubes

@Darieee 5 лет назад

Dave, regarding the lcd filming ... whenever I do it, I slightly defocus the camera, ... get the image blurry enough to null out the aliasing but clear enough to make out text

@stephanmantler 5 лет назад

Thank you for not saying "I apply an analog, in-lens variable low pass filter".

@TheMrKeksLp 5 лет назад

@@stephanmantler He isn't writing an academic paper

@hgbugalou 5 лет назад

I can't wait to see Sagan on here in 10 or 15 years doing a mailbag. You are raising him right.

@movax20h 5 лет назад

I think this CrowPi board thingy is excellent for beginers. No need to solder anything, very low barrier of entry, low risk of damaging something, etc. Just power up, start coding and have a go. It is not ultimate hacking platform, but at the same time, once you are familiar with it, you can simply unhook the ribon cable and connect whatever you want to it.

@povilasstaniulis9484 5 лет назад

That CrowPi kit looks really cool. I would have loved to play with something like that when I was a kid... That LED clock concept (it's called Lixie) is nice too, too bad yours is very poorly made. Techmoan did a video on these LED nixie-style clocks and they can look quite impressive when done right.

@charlesdeens8927 5 лет назад

22:55 Techmoan would love that audio activated light tower.

@SteveMHN 5 лет назад

That fake nixie tube thing at 25:07 made me laugh at how bad it was. I'm sure it would look better if they had used a different color

@JamesPotts 5 лет назад

Techmoan did a video on a similar one. Similar in concept, that is. His looked much better.

@almostanengineer 5 лет назад

As James pointed out, it's a rip off of Cronixie ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-miqN2gR1Zns.html

@Hammerjockeyrepair 5 лет назад

the first thing you opened from 8x8x8 is a led version to emulate the old nixie tube clocks!

@Hammerjockeyrepair 5 лет назад

lol and 2 minutes later you said it too! lol I guess I shoulda waited a minute to comment!

@samuelclemens6841 5 лет назад

DTH11 is a humistor. It's used to measure the ambient humidity

@pmundy7899 5 лет назад

Dang, and I thought a humistor would be a cool name for a sense of humour sensor?

@Zadster 5 лет назад

So that's 3 items that flash a light when you make a sound? What a time to be alive! Seriously though, the one thing that the CrowPi needs is a good quality printed dead tree (paper) instruction book!

@GeekIWG 5 лет назад

Man, when I was a young kid I would have loved to have something like the CrowPi. I actually did have a Lego Mindstorms robotics kit when I was 9 and the way Scratch works with the drag and drop code blocks reminds me a lot of the programming of that Lego Mindstorms kit. That was actually my first introduction to programming, and now I program for a living. :)

@5argetech56 5 лет назад

Crow Pi-- Good Morning Mr. Jones- Your mission, should you decide to accept it... is to HAVE FUN :)

@sticky170 5 лет назад

17:23 Audio signal in from the microphone.

@Banadosmr 5 лет назад

Dave's only critical feedback on the CrowPi is hardware is the lack of interfacing with the GPIO ports but I bet you can pull that ribbon cable off and put easily put jumpers to the breadboard and back and to wherever you want. I think it is meant for that.. That thing is cool ...

@bloodyl_uk 5 лет назад

13:11 - "Where we are going we don't need roads!" Awesome.

@willierants5880 5 лет назад

Dave, GPIO 18 is connected to the Mic, which is located next to the camera. You can see it flashing every time you talk.

@dgramop 5 лет назад

For the record, I went and bought the Sipeed on the page... this kind of marketing really works!

@willierants5880 5 лет назад

Yeah not being able to connect the GPIO's yourself is a deal breaker for me. Elecrow if you are monitoring comments I recommend adding the ability to connect the GPIO's as you please in version 2.0. Aside from that this looks like it could be a real winner. Price is pretty steep though at $199 for Basic and $299 for Advanced.

@N3tech 5 лет назад

We used a super similar kit to that in one of my classes except it was built around Arduino. Pretty cool kit, super useful for Arduino prototyping.

@saddle1940 5 лет назад

The cable direction between the screen and the board bugs me. It should run along the seem and twist to reduce the cable flex. Wonder it there was enough room under the board to put in a mains supply?

@DoRC 5 лет назад

Crowpi is cool but i think wiring things up is an important part of the hands on learning process. I suppose if youre only interested in programming its good but that thing just isnt messy enough for me:)

@Ziferten 5 лет назад

Most pins on the RPi are multiplexed with other functions. In this example, pin 12 / GPIO 18 is tied to the clock for the PCM audio module. I'd have to imagine that Scratch only takes hardware control of the GPIO after you hit "run", and outside of that the IO is nonsense. Edit: See the BCM2835 peripherals datasheet linked here: www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2835/BCM2835-ARM-Peripherals.pdf

@AnthonyGoodley 5 лет назад

The Crowpi is pretty impressive. Nice quality all around put into a very nice case.

@tokeeptrackofrandomsubs5899 5 лет назад

It seems pretty nice, nothing really amazing in itself but it's neat to be able to interact easily without a lot of setup with many physical input and output devices. Call me crazy though, but for that price tag I feel like having a built in battery so you could run it away from a power source would've been neat. There should be enough room below the board, cost and complexity isn't too bad since there's many off the shelf boards that'd do it. That said I do wonder if including a battery might make it more complicated with getting approval for sale in some countries and it'd definitely complicate shipping (unless it gets the required certifications).

@shawnmccori 5 лет назад

The second the suit case is opened it starts counting down. It even has its own ticking noise!

@richard3422 5 лет назад

That's still a mighty fine lookin' toothpick you use for a letter opener 😁

@foxsux6000 5 лет назад

Hey, a RISC-V (Haven't seen those out in the wild yet.)

@jort93z 5 лет назад

The crowpi looks exactly like something a hacker in a hollywood movie would bring... I want one. it looks really neat and compact. Got everything you'll need for small raspberry pi projects. Little unfortunate that they don't provide a pin header or something. So if you'd want to add a component of your own you'd have to take the flatband cable off, jump all the contacts but the ones you want to rewire, not that good of a solution really. But otherwise quite neat. But honestly, it just looks so cool.

@mrroobarb 5 лет назад

So cool, I just bought one for my 11 year old - I hope he likes it.

@matts.8342 5 лет назад

You could probably unplug the ribbon from the larger board and insert jumper wires directly into it.

@willierants5880 5 лет назад

Don't bring it to school, might be mistaken for a bomb!

@matts.8342 5 лет назад

@@willierants5880 I was actually thinking it could be something the schools could use as a part of an elective class.

@Maskddingo 5 лет назад

I just don't get why selling a pi with a bunch of crap attached is desirable. I'd like all this stuff, but not all slapped together in a kit. I'd want to be able to use those sensors in a project outside of the case. Mounting everything in the case makes everything less useful.

@Pentross 5 лет назад

Interesting that GPIO 18 seems to act as a microphone as well as a speaker

@matsv201 5 лет назад

The Mr fussion when i think of it really look like a lot of semi cheap early 00-tys electronics... right after the cheep transparent "iMac" period of the late 90-tys. Its incredible that that thing is from the 70-tys

@TheDefpom 5 лет назад

I had a package arrive for Mailbag a couple of weeks ago, the address was “god bless three-way” !

@kevincozens6837 5 лет назад

The CrowPi kit: "Lead you Go from Zero to Hero with Raspberry Pi". It includes a "4 BITE SEGMENT" as seen at 11:19. :) IIRC, with the Pi 3 the recommendation is to use a power supply that can supply at least 2.5A. I punched that long string of stuff shown at 20:13 in to a translator. It came out as "Henggang Hongmai Ms. Road No. 6 Yucheng Industrial Zone".

@movax20h 5 лет назад

230GOPS in 0.3W. WOW. My CPU with 180W peak power consumption can barely do that much today. What a time to be alive. RISC-V plus AI extensions in it, are really rocking.

@0x8badf00d 5 лет назад

But what kind of operations are they?

@movax20h 5 лет назад

@@0x8badf00d Low precision additions and multiplies (and obviously loads from memory). It is mostly

@EngineeringVignettes 5 лет назад

"Edge Computing" My interpretation of it is with respect to upcoming 5G networks. The intent is to try and keep latency low when performing remote or cloud computing tasks. An example is a vehicle using a 5G edge computing network to assist in full autonomous driving tasks. The edge in this case is in the fronthaul interface, at a point offering minimal response latency. Hope that brings some clarity Dave. Cheers, - Eddy

@tubelife70 5 лет назад

Wow, the CrowPi is very reminiscent of the Radio Shack/Tandy 150 in One Electronics Project kit! That takes me back to a simpler time... :)

@j.macjordan9779 5 лет назад

If the CrowPi were a standard sized real aluminum briefcase/attache with changes to the load out, that would be cool as hell...

@I_love_electricity 4 года назад

When back to the Future was filmed during that DeLorean scene it was filmed at my local mall believe it or not.

@tom_something 5 лет назад

When I saw the Raspberry Pi learning kit in the thumbnail, I was almost certain I was looking at an immersive I/O device for "Keep Talking and Nobody Explodes". I'm a little disappointed, but not _too_ disappointed because that thing is still pretty cool. Reminds me of those old Radio Shack kits I used to play with, substantially modernized.

@LiquidCacheFTW 5 лет назад

That CrowPi is pretty damn genius. Gotta save up my pennies and maybe in a few months I can afford one. Fantastic form factor, and execution. Thumbs up on that guy.

@marcus_w0 4 года назад

I'm a bit late on this, but I find the crowPi very compelling for the prize. Just have a look, what you get for these $250. The pi and the display alone will be in the $100-150 dollar region. Let alone all the sensors and the neatly integration with all the lessons attached to it. I like it.

@MrKeech666 5 лет назад

I love your AC/DC shirt! I need one!

@warp-co-il 4 года назад

Interesting, I was looking into the "Risc-V" (aka Risc Five) by the way [they're open source processors]. The processors are very cheap given their 400MHz clock and their 64 bit bus width. Also comes with KPU and WiFi and what not. Entire SOC is less than $10.

@RoyHess666 5 лет назад

Welcome to Mailbag Monday where we only open 3 things.

@stickmaker10111 5 лет назад

This is used for developers to learn the raspberry pi and how to interface with its GPIO pins.

@MrChizbiz 5 лет назад

The parts on the crowpi are from kits that you find everywhere.

@zaprodk 5 лет назад

Those in-plane-readouts are not "fake" nor Nixie tubes. They predate Nixie tubes and are a real thing from that era!

@LerrySanders 5 лет назад

Techmon did a great video on of those LED Nixie number things. His was much higher quality and looked much better

@godfreypoon5148 5 лет назад

That CrowPi would be fine for carry-on luggage, right? Something to kill the time during the flight?

@maicod 5 лет назад

Letter to parents of school: "coming school year your kid needs to provide his own Crowpie. Note it needs to be the advanced version or your kid will not be able to join our classes"

@BandanazX 5 лет назад

Nice clock. Your Whitehouse invitation should be arriving shortly.

@GeorgeWMays 5 лет назад

Great fun as always. Thanks Dave. :-)

@JAKOB1977 5 лет назад

230USD its certainly not out of this world for this self-contained pi-briefcase package with numnerous sensors and stuff. Nice job PiCrow. .

@SproutyPottedPlant 5 лет назад

Wow I love the play with junk channel!

@dash8brj 5 лет назад

Dave, pretty sure the dip switches selected what items you wanted to connect to the GPIO pins. Theres probably some fancy logic under the board that does the muxing. :) of course I am referring to the suitcase bom... err CrowPi. You probably don't want Sagen to take that on a plane!! ;)

@MattOGormanSmith 5 лет назад

11:14 "the product contains small parts which might cause *chocking* to small children" A couple of wooden wedges under their wheels does the trick.

@MrAwyork 5 лет назад

The Pi3 needs 2.5 A. Also PI does not know how to negotiate with a cell phone charger. (I don't think you are using one, but it is a trap.) This kit probably need far more than 2.5 A. The screen will take a good bit of current too.

@faizanjoyia 5 лет назад

CrowPi if you take it to shops or somewhere even one will think it’s an control for a bom

@StefanoBettega 5 лет назад

I supported the founding of CrowPI on Kickstarter and had my blue one delivered. I haven't used it yet, but will probably do it in the holidays... It's a great product for bringing kids to coding and electronics (even though I have three girls...)

@flightisallright 5 лет назад

I would toss that CrowPi into a corner immediately. I've never liked these all-in-one kits.

@video99couk 5 лет назад

Oh yes, got to have a bit of Play With Junk, he's really good. Also would recommend CuriousMarc. (And yours truly too of course.)

@joetke 5 лет назад

Thanks! I love the kickstarter AIoT kit... pretty promising

@squidkid2 2 года назад

Your kids can take it on vacation. Just don't try to get it through the metal detector at airport security unless you want to single handedly raise the national DHS threat level to red!😁 BTW I like that stack of discs led light thingy. It's kind of like an LED version of a Lava lamp.

@dtec30 5 лет назад

That directional mic would be good for tacking gun fire

@massmike11 5 лет назад

Try using the back of the blade tip to cut across the tape on the top of the boxes

@--Zook-- 5 лет назад

Play with junk is a great channel. He sounds like "the Swede" from Hell on Wheels.

@peterzingler6221 5 лет назад

ohh a led nixie clock those can be so nice

@za_ozero 5 лет назад

a lot of space left for explosives in that CrowPi

@excavatoree 5 лет назад

It looks like they sent Dave the "advanced kit" option, which is 100 dollars additional. 339 total, according to their website, to get everything Dave received.

@sp1d3r_gamer 5 лет назад

Dave. The buzzer is feeding a signal back like a microphone.

@subsynchronous 5 лет назад

take one Sipeed step forward, and two CrowPi steps back in the tech-evolution

@Ajni 5 лет назад

Maybe you should put a memory card in the card slot next to the camera on the MaixPy thing??

@RoboCNCnl 5 лет назад

That CowPi would be a cool thing to take as hand luggage on a plane :) #GoodLuck

@MegaLahak 4 года назад

When did Mailbag go from interesting and unique old electronics to commercials?

@theeuda 5 лет назад

That image and sound tracking stuff is super cool. I would love to have that kit to debunk ghost hunters and EVP sounds super keen. 8)

@necessaryevil8615 5 лет назад

The Poor Man's Nixie tube might not be there yet but I like the idea!

@urdnal 5 лет назад

Don't you worry about your skills, every DaveCAD is a work of art

@justinhannah1023 5 лет назад

CrowPi probably not the sort of thing you would want to try to bring through airport security...

@axslinger99 5 лет назад

Don't leave that CrowPi sitting unattended at an airport.

@DarrenPoulson 5 лет назад

GPIO 18 was flashing as its hooked up to the piezo buzzer, and your voice was creating a voltage.

@bobbybiggs4348 5 лет назад

Diddn't think of the piezoelectric thing. Well theorised.

@MrJamesonStyles 5 лет назад

Pin 18 on the CrowPi very definitely appears to be flashing along with your voice at 17:27. Intensity of the light seems to scale with the loudness of your voice. It must be connected to the microphone on the board and some other process is running to make it flash.