Dave, on the car emoticon thing, I think that extra LED under the IR detector is just to hold it up in place. With so many LEDs on the BOM, it must have been cheaper to just include one more per unit rather than use a proper support...
I would recommend visiting Zapta's Gitbub repository for his ARM board (link at 2:00). It is a sample of through comprehensive documentation of an electronic project. Even if you are not interested on the ARM development board, you will love the documentation.
Dave, you're a nifty dude. I love taking things apart, even if I don't fully understand them. Marveling at what's inside is often satisfying, and every time I do I learn something. You've spurned me to purchase an oscilloscope and other things that I may never have any practical use for but they assist me when I'm taking things apart and delving into what makes them tick.
It's nice seeing everyone being busy and making PCBs and circuits. I can't wrap my head on what to make anymore, always relied on perforated boards for my circuits which makes them kind of tiny. I know, it is the idea that counts.
I have an old early 90's style license plate frame with a actual tri color LED matrix in it. We already parted it out though but the actual LED matrix units we still have. The GE Phoenix SX mobile 2-way radio used a PAC-Tec type case also. The RFD device is not a new thing, We have run trials here to harvest up to a couple hundred DC volts from nearby RF sources. problem is the sources either have to be high powered and very close by or connected directly. The best way to harvest DC wirelessly id to connect the device to a capacitor bank and have a times triggering circuit to act as a pulsing charger for a battery bank. Main issue we had was the power required to generate enough RF to effectively charge a 12 volt DC battery was far greater than the harvested power. basically speeking it takes more energy to start the process than what is collected. The device can in fact collect fractions of a volt from ambient RF being fed in from an old analog TV antenna which you can wire to a multiplier and then a cap bank..We got several White LEDS to flash at a 1 second pulse at a decent brightness doing this though. Our testing was done a few years back also, I;m sure the whole thing has advanced greatly since and I await to see what this FRD produces!
Just checked, my Casio FX-7700GE is still running on Duracell AAAs expired in 2004. Damn, I was still in university a that time. I can't beat 1983, but at least it looks like I don't have to worry about flat batteries soon ;) .
I think I'd have to reconfigure that LED thing saying "Back off" to something of a similar spelling (involving swapping the B for F, and A for U), much more descriptive than just "back off"... :P
4:25 Dave, that was a mini version of a late 1970's toy in the UK called Big Trak, which was a programmable vehicle for kids (go forward 9 steps, turn 90 degrees, go forward 5 steps... that kinda thing). I only recognised it because I wanted one so badly when I was 9 years old :-)
Dave ,why don't you hack your camera and build a wireless remote for the focus.one button for face and other for macro/super closeups ,or you can use those fancy joysticks. of coarse it would be a nice episode to watch.
I've got a first-generation TI-92, myself. Has the old gray-on-green LCD and had to buy and install the "plus module" some time after the fact. Still works fine of course, almost 20 years later. The exponent key is the ^ caret, which is literally "to the power of". So 2^3 = 8. But you want the E, or "times 10 to the power of" 2E3 = 2000. Kind of amusing to think that some people might be annoyed by which key was assigned to be a secondary function based on the kind of math they use most often. :)
Oh My... I remember something similar to the Drivemocion in the JC Whitney catalog in the (mid?) 1970's. It was a a rather large rectangular box that mounted on the top of your car, strapped down to the drip rail. Much like a Police light bar. It had a mask with lights that lit up behind similar phrases ( Back off, Thank you, your signal is on, dim your lights, etc). All controlled by the driver. The illustrations in the ad were obviously from the 50's. Good for a laugh, even back then. Who would think someone would recreate it today, smaller and with LEDs, of course. Unbelievable.
A set of leds in top of the back window ain't bad, a few messages are quite nice to have. Most important one is "Turn off your high beams/full beams" Dunno the english word for it so guessed, but when they got full beams on behind you and they wont turn em off (probably they do not notice they have em on) they kill your eyes so that's a good way to tell em. Also keep distance is a good one when someone is noosing your arse :)
Really interesting with voyage 200 PCB that each of the QFP packages have there own square Fiducials to help with machine placement accuracy. Must have been some worries about cross board registration. or maybe it could be something to do with the automated inspection to have a reference for alignment in the same visual frame :).
I find it more interesting that it contains so many chips from Ti's own competition. That's spells silly management to me. Surely they could have used an OMAP processor and some Ti LCD drivers.
Hello Dave, greetings from Boston Massachusetts. I'm a new follower and very much enjoy your videos. I have saved a lot of links that you provided. Hope to get some microprocessor projects going soon. Cheers, Lenny
If only they made a circular nanobeam style frame. Then I could use an AVR and a whole bunch of red leds to make a programmable smiley face for in my car. I bet nobody thought of that!
Would be cool if these LED car signs were popular and the could display all kinds of bitmaps transmitted by the receiver... just imagine driving around with a hacked transmitter to make everyones sign swear at the car behind them
If the TI-200 has a feature to add TI-Basic that RS-232 port could allow the calc to become a hobby/kit PC that can be programed to control servos (robot) or motor boards. The hand held portability would make it ease of use and cheap. Just what a school would want most. en.wikipedia.org/wiki/TI-BASIC
In fact the ti voyage series (I used to have the predecessor ti-92+) could do algebraic solving and not only numeric solving like nowadays rubbish (including matlab!) ;-) I still like it for soling linear algebra
Another reason calculators are still fairly common, at least here in the US...smartphones and other "computer devices" are actually banned on many standardized tests (SAT, ACT, etc), while all except the most advanced calculators are allowed.
***** No, I didn't see Crocodile Dundee in Los Angeles. I did see the original Crocodile Dundee and thought it was entertaining. We all know that Hollywood loves to remake classic films. So a remake of the original might be entertaining. I'm not suggesting they make a sequel. I suggested a remake. Twenty to thirty years seems to be the right time for a remake.
The same could be said for any movie that's been remade. Just look at Batman, Robocop, and Star Trek, Superman (which has been remade four times), to name a few.
I've done a bit of work in Spain, and from my experience their technicians are very creative. However the reason you might not have so many Spanish viewers is that they are not really big on speaking English.
Dave it's hard to get a focus on the objects you're holding up to the camera if you just wiggle them for 3 seconds ^^ Otherwise still loving your work, keep up!
G'day Dave" Sharpen that Croc Dundee knife! Looks like it is a sharp as a bowling ball - lol. Did that multimeter work? Did you test it? Even old school stuff can be useful. Us an old late 70's Fluke freq counter that I aligned to a Rubidium osc for my ham gear. It is my favorite piece of kit; vurrry shmick!.
This video ran a bit short :( I prefer the ones that are about 45min+. I think the face camera is a bit unnecessary and adds more editing time. I want to see the mail up close when you open it! Almost everything you try to show the camera is out of focus. Don't get me wrong, your head is nice to look at, but I'm looking for the electronics!
Sagan sized youtube Tshirts, that means one thing... Sagan needs more TH-cam time for his projects. I am getting more of a interest in electronics, still don't know where to start. I tried fixing a light problem, found that the blue wire was fitted to the blue wire and the brown wire fitted to the other blue wire. I tried to measure between the first blue wire that came through the ceiling to the brown wire that came through the ceiling.... It gave a bang and tripped the RCD. No clue why it was wired that way or why it tripped the RCD, i do not trust the electricians wire skills.
Hey Dave, a good suggestion for a short video. It seems that the Raspberry Pi 2 glitches when a photo is taken with a Xenon flash. More info at the official forum www.raspberrypi.org/forums/viewtopic.php?f=28&t=99042
I always use real calculator, because its TI-nspire CX CAS and theres nothing it cant do. Also I dont use a phone, I have one but its never charged and I never take it with me.
I like real calculators because my phone is usually in my pocket, and my calculator is right there on my desk at all times. Practical or lazy? I'm not sure which.
Calculators are simply way too expensive. Why does every single student need their own calculator for an exorbitant price? Mathematics is not about computation, it's about a way of thinking. Most of the time, you don't care about the numbers, but the how you work with them. This idea of building a curriculum around a calculator just serves to feed an already rich company.
Yes, and now that gig is increasingly going to Apple with its limited range of mass-produced identical phones rather than the plethora of other manufacturers who offer more variation and more flexibility.
![SAFEPLANET - ดาวเคราะห์ [ THE PLANET ]](http://i.ytimg.com/vi/4X1XL3I_k3c/mqdefault.jpg)
yay a day off of school and a new video :) thanks dave
THANKS Dave!! I love the mail bag!!
Dave, on the car emoticon thing, I think that extra LED under the IR detector is just to hold it up in place. With so many LEDs on the BOM, it must have been cheaper to just include one more per unit rather than use a proper support...
Or it could be a feedback LED. Lights up when it receives the commands, to show it is working.
I would recommend visiting Zapta's Gitbub repository for his ARM board (link at 2:00). It is a sample of through comprehensive documentation of an electronic project. Even if you are not interested on the ARM development board, you will love the documentation.
mamun Ali jan... didam
Dave, you're a nifty dude. I love taking things apart, even if I don't fully understand them. Marveling at what's inside is often satisfying, and every time I do I learn something. You've spurned me to purchase an oscilloscope and other things that I may never have any practical use for but they assist me when I'm taking things apart and delving into what makes them tick.
It's nice seeing everyone being busy and making PCBs and circuits.
I can't wrap my head on what to make anymore, always relied on perforated boards for my circuits which makes them kind of tiny. I know, it is the idea that counts.
The Nano Beam is neat. Really like it.
I love through-hole boards from the 70s and 80s. It reminds me of the days ripping open stuff when I was a kid.
I have an old early 90's style license plate frame with a actual tri color LED matrix in it. We already parted it out though but the actual LED matrix units we still have.
The GE Phoenix SX mobile 2-way radio used a PAC-Tec type case also.
The RFD device is not a new thing, We have run trials here to harvest up to a couple hundred DC volts from nearby RF sources. problem is the sources either have to be high powered and very close by or connected directly.
The best way to harvest DC wirelessly id to connect the device to a capacitor bank and have a times triggering circuit to act as a pulsing charger for a battery bank.
Main issue we had was the power required to generate enough RF to effectively charge a 12 volt DC battery was far greater than the harvested power. basically speeking it takes more energy to start the process than what is collected.
The device can in fact collect fractions of a volt from ambient RF being fed in from an old analog TV antenna which you can wire to a multiplier and then a cap bank..We got several White LEDS to flash at a 1 second pulse at a decent brightness doing this though.
Our testing was done a few years back also, I;m sure the whole thing has advanced greatly since and I await to see what this FRD produces!
I always imagine that that knife is actually regular sized, and you're just 3 feet tall.
I know you are a big calculator fan. Wondering which one is your all time favorite calculator, that you (would) use every day? Thanks.
When I reach for a calculator, it'd for my old faithful Casio FX-100, still going strong on its original Casio branded AA cells with 1983 date codes!
Just checked, my Casio FX-7700GE is still running on Duracell AAAs expired in 2004. Damn, I was still in university a that time. I can't beat 1983, but at least it looks like I don't have to worry about flat batteries soon ;) .
The TI voyage 200 would drain 4 AAA batteries in about a month. It was better in every other way though.
TI-83 All the way for me, baby!
Doing homework with my TI-Voyage 200 as I watch this video. I love this calculator.
the LED thing would be good if you could programme it to say
TURN YOUR FUCKING FOG LIGHTS OFF!
Yes would be great. Fed up with front fog lamps on all time blinding me.
I just turn my 1000watt spot light on.
i4ittwasdis oh if they are coming towards me i just shine my full beams in there face. its when they are behind you thats the issue .
Andrew Joy
Install fog light in the rear with a switch on the dash....;)
My granddad put a light from a freight train on the back of his ute back in the day :) Bloody dangerous but amusing LOL
the new camera is ridiculously clear and almost disorienting.
cheers mate
I've been using this calculator for years.
BTW Just press the ^ button below the D pad to enter exponents.
Love the 2 minute teardowns! :D
I think I'd have to reconfigure that LED thing saying "Back off" to something of a similar spelling (involving swapping the B for F, and A for U), much more descriptive than just "back off"... :P
its pretty sad when the mail bag segment is the most popular part of an electronics blog
Nice short mailbag Dave,
I like the shorter ones!
4:25 Dave, that was a mini version of a late 1970's toy in the UK called Big Trak, which was a programmable vehicle for kids (go forward 9 steps, turn 90 degrees, go forward 5 steps... that kinda thing). I only recognised it because I wanted one so badly when I was 9 years old :-)
Maybe somebody would be good enough to send Dave a Big Trak for a teardown?
I still have a voyage 200 in my work bag. It's done all the engineering calcs I ever asked of it and more.
That car thing needs a ”twat" message option :)
Video Quality looks great this week, Dave!
Dave ,why don't you hack your camera and build a wireless remote for the focus.one button for face and other for macro/super closeups ,or you can use those fancy joysticks.
of coarse it would be a nice episode to watch.
Agree. Or use a second camera.
20:28 Achtung! Nicht Gefingerpoken und messen die Blinkenlights! etc etc
I have a Texas Instruments TI-74 handheld computer. I love handheld computers the most.
I've got a first-generation TI-92, myself. Has the old gray-on-green LCD and had to buy and install the "plus module" some time after the fact. Still works fine of course, almost 20 years later.
The exponent key is the ^ caret, which is literally "to the power of". So 2^3 = 8. But you want the E, or "times 10 to the power of" 2E3 = 2000. Kind of amusing to think that some people might be annoyed by which key was assigned to be a secondary function based on the kind of math they use most often. :)
Man the ad before this video went for more than 2 minutes without a skip option. You kidding me?
Oh My... I remember something similar to the Drivemocion in the JC Whitney catalog in the (mid?) 1970's.
It was a a rather large rectangular box that mounted on the top of your car, strapped down to the drip rail. Much like a Police light bar. It had a mask with lights that lit up behind similar phrases ( Back off, Thank you, your signal is on, dim your lights, etc). All controlled by the driver.
The illustrations in the ad were obviously from the 50's.
Good for a laugh, even back then. Who would think someone would recreate it today, smaller and with LEDs, of course. Unbelievable.
I swear to god, Dave, every time you pick up that huge pig sticker of yours I expect you to do yourself damage.
Never cut toward yourself, Man. Never!
Cut towards your chum not your thumb.
Looks like that Dundee knife needs some sharpening.
Relax, I'm a professional.
EEVblog Isn't that catch phrase of self inflicted injuries world wide? I mean second only to "Hold my beer, and watch this!"
Clell Harmon dont forget "Nah, im the best"
EEVblog you beat me to it : D
I still love your knife....
Zapta sent me one of the ARM boards, very nicely done!
A set of leds in top of the back window ain't bad, a few messages are quite nice to have. Most important one is "Turn off your high beams/full beams" Dunno the english word for it so guessed, but when they got full beams on behind you and they wont turn em off (probably they do not notice they have em on) they kill your eyes so that's a good way to tell em. Also keep distance is a good one when someone is noosing your arse :)
Really interesting with voyage 200 PCB that each of the QFP packages have there own square Fiducials to help with machine placement accuracy. Must have been some worries about cross board registration. or maybe it could be something to do with the automated inspection to have a reference for alignment in the same visual frame :).
I find it more interesting that it contains so many chips from Ti's own competition. That's spells silly management to me. Surely they could have used an OMAP processor and some Ti LCD drivers.
Dave, with your knowledge, you could mod that car device to make it keep cycling and use it as a wall decoration... Just an idea
68K fanboy, in the house! Woo! :-)
EEVblog That nanobeam looks exactly like the 80-20 that my robotics team uses, minus the hole in the center.
New mailbag!!
Hello Dave, greetings from Boston Massachusetts. I'm a new follower and very much enjoy your videos. I have saved a lot of links that you provided. Hope to get some microprocessor projects going soon.
Cheers,
Lenny
If only they made a circular nanobeam style frame. Then I could use an AVR and a whole bunch of red leds to make a programmable smiley face for in my car. I bet nobody thought of that!
5:50 In the US (or at least my state) I am pretty sure those are illegal for distraction reasons.
Would be cool if these LED car signs were popular and the could display all kinds of bitmaps transmitted by the receiver... just imagine driving around with a hacked transmitter to make everyones sign swear at the car behind them
on the voyage 200; the exponent is the ^ key
If the TI-200 has a feature to add TI-Basic that RS-232 port could allow the calc to become a hobby/kit PC that can be programed to control servos (robot) or motor boards. The hand held portability would make it ease of use and cheap. Just what a school would want most. en.wikipedia.org/wiki/TI-BASIC
I've got that TI-200 and it's an awesome calc =)
The LED underneath the IR is just there used as a stand off for the IR....LOL.
That car sign looks like road rage magnet sign.
nice video as always. Have to say i reguarly check my email on a monday night to see if theres a new mailbag video
The voyage has a exponent button, its ^ on the right side.
In fact the ti voyage series (I used to have the predecessor ti-92+) could do algebraic solving and not only numeric solving like nowadays rubbish (including matlab!) ;-) I still like it for soling linear algebra
Was that a BigTrak key ring? Does it operate or just a model? One of my favorite toys growing up.
Those things were awesome!
It is. It's an LED torch.
the vulcan was made by avro in conjunction with hawker siddeley the makers of the british harrier jump jets
The Mailbag Knife is NOT big enough - upgrade now ! :D
Another reason calculators are still fairly common, at least here in the US...smartphones and other "computer devices" are actually banned on many standardized tests (SAT, ACT, etc), while all except the most advanced calculators are allowed.
13:25 - is that a short between two pins on that ASIC?
Jaroslav Malec Flood fill on two pads.
Hi Dave! My package from austria is on the way to you :) - I'm just say'in FPAA. ^^ - I hope you will like it.
The "^" on the calculator is the exponent button.
Since Hollyweird is always remaking famous flicks, they should remake Crocodile Dundee. It's about time.
*****
No, I didn't see Crocodile Dundee in Los Angeles. I did see the original Crocodile Dundee and thought it was entertaining. We all know that Hollywood loves to remake classic films. So a remake of the original might be entertaining. I'm not suggesting they make a sequel. I suggested a remake. Twenty to thirty years seems to be the right time for a remake.
The same could be said for any movie that's been remade. Just look at Batman, Robocop, and Star Trek, Superman (which has been remade four times), to name a few.
I've done a bit of work in Spain, and from my experience their technicians are very creative. However the reason you might not have so many Spanish viewers is that they are not really big on speaking English.
Dave it's hard to get a focus on the objects you're holding up to the camera if you just wiggle them for 3 seconds ^^
Otherwise still loving your work, keep up!
Why do some chips in the TI Voyage (at 13:40) have those pink marks on them?
Any ideas for a "good" calculator?I mean one that allows easy exponent input what with all the milli, micro, nano and pico that are needed!
15:36 - is it the same hand on the lock button, which you can find struck-out on the antistatic bags? :)
Dude! That's a Big-Trak!
It's about 5 haters per hour ) Hyperbolic, exponential or linear by dt?
G'day Dave"
Sharpen that Croc Dundee knife! Looks like it is a sharp as a bowling ball - lol.
Did that multimeter work? Did you test it? Even old school stuff can be useful. Us an old late 70's Fluke freq counter that I aligned to a Rubidium osc for my ham gear. It is my favorite piece of kit; vurrry shmick!.
i have TI nspire CAS and is it absolutely brilliant calculator
i might have to buy some of those nano beams see if i can build a micro 3d printer that does like a 3x3x3 print space
Dave send the TI card in! Maybe someone will have a laugh and reply. ..
Completerly missed Shakespeare there, Dave...
LOL... still using the TI Voyage 200 in school O.o
Vulcan bombers are great. I stood underneath one, that attacked the Argentinians during the Falklands war, when it was raining one time.
Keeps off rain and Argies. Can't argue with that.
Dave you should definitely come to Spain ;)
Was that a bigtrak key ring?
This video ran a bit short :( I prefer the ones that are about 45min+. I think the face camera is a bit unnecessary and adds more editing time. I want to see the mail up close when you open it! Almost everything you try to show the camera is out of focus. Don't get me wrong, your head is nice to look at, but I'm looking for the electronics!
Sagan sized youtube Tshirts, that means one thing... Sagan needs more TH-cam time for his projects.
I am getting more of a interest in electronics, still don't know where to start.
I tried fixing a light problem, found that the blue wire was fitted to the blue wire and the brown wire fitted to the other blue wire.
I tried to measure between the first blue wire that came through the ceiling to the brown wire that came through the ceiling.... It gave a bang and tripped the RCD. No clue why it was wired that way or why it tripped the RCD, i do not trust the electricians wire skills.
And I thought 15x15mm t slot extrusion was small.
Crocodile Dundee knife. Blade yes, handle no.
Hey Dave, a good suggestion for a short video. It seems that the Raspberry Pi 2 glitches when a photo is taken with a Xenon flash. More info at the official forum www.raspberrypi.org/forums/viewtopic.php?f=28&t=99042
I don't even have an Arduino Micro and he gets Mega.
EEVblog
I review ARM boards who was it that sent that to you i want to see that thing?
I always use real calculator, because its TI-nspire CX CAS and theres nothing it cant do. Also I dont use a phone, I have one but its never charged and I never take it with me.
The US Postal service is far from "ever reliable", just FYI.
hey dave could you give me that texas instruments voyage calculator ?
Please
the things i could do with the nano beam
The close-up focus speed on your camera absolutely sucks.
That's not a knife, that's a spoon.
I want that knife.
The t board is similar to Ben heck's avr dev board
Send the card in anyway.
I like real calculators because my phone is usually in my pocket, and my calculator is right there on my desk at all times.
Practical or lazy? I'm not sure which.
Calculators are simply way too expensive. Why does every single student need their own calculator for an exorbitant price? Mathematics is not about computation, it's about a way of thinking. Most of the time, you don't care about the numbers, but the how you work with them.
This idea of building a curriculum around a calculator just serves to feed an already rich company.
Yes, and now that gig is increasingly going to Apple with its limited range of mass-produced identical phones rather than the plethora of other manufacturers who offer more variation and more flexibility.
Whoop! Whoop!
SEND IN THE CARD!! LOL
that knife reminds me of tf2
5:40 LOL
XH558!
Yes! Love it.
shrekton
I was really hoping someone would get the reference! She's a beautiful thing.
Nickillik I sent the mailbag in. I'm a big fan of XH558!
Oh I see haha, I should have guessed :) cool item though! Well, for mailbag that is, not sure about using it for real like lol.
Nickillik yeah, perhaps if it had the middle finger it would be handy!
how much gold and etc you earn with each bag?;D
Find me the app that will do definite integration, Matrix arithmetic and complex arithmetic and i'll throw my calculator away.
Who the hell is Bob?
He's your uncle.
Peter Yan Thanks, this makes life worthy to live :)