Fun fact: The modem on credit card terminals (at least on the ones that still connect via phone line) use as low of a baud rate as possible. The amount of data to be transmitted is very small, and a faster baud rate would actually be slower when taking into account the amount of time spent during handshake negotiation.
Those connectors hook into the keyboard port on your PC as well as the register. These old systems actually used to transfer your card details to the PC in clear text. In 2000 we had a system that filled in a web form and processed cards through a website. The upc/barcode scanner added items to the checkout. Then you clicked credit or debit and it pulled up the payment form and filled in the total. Then you clicked the first field, swiped the card and it would fill in the name and number.
Back in the mid 90's I worked for a locally owned business that used this very unit. It could be used as a stand alone - no cash register or other equipment was needed, and that is how we used it. Swiped the card, input the amount, hit send, and that was that. It was connected to a phone line, and if you didn't have a dedicated line you were screwed if somebody else was on the phone. Using it in this fashion also meant I had to hand write a receipt. At the end of the day there was an accounting function of sorts I had to run - its exact purpose is now long forgotten.
There's an end of day settling process on most of these devices. If you don't do it, then the charge never actually goes through on the user's account. The swipe is just authorizing the card and putting a hold on it for the amount, the end of day actually tells them to take the money out.
I've seen two great videos about electromagnetism today. It's a coincidence both were released today but still amazing. ruclips.net/video/g1JlUcFKm5o/видео.html RUclips is ok today!
I made a ROM for these that lets it run BASIC over the serial port and echoes output to the VFD. ROM: github.com/al177/tranz330_basic/blob/master/tranz330_basic.rom Partial reversed schematics: github.com/al177/tranz330_re
IIRC you can get into the configuration / memory with Function 7 then 1 Alpha Alpha 66831 Enter as the password. After that it will ask for a number for a memory location. There is another password that I have long since forgot. I think it nuked the memory contents. It’s been around 10 years since I had to reprogram a borked Trans 330 or 380. There is a service manual somewhere that says what the memory locations mean. They do have a slow modem in it. I think it was in the 2400 to 9600 baud range. They were used to dial your card processor, check verification service or time card system.
I have one and was only interested in the card reader years ago. Using a programmer to look at the software I discovered that the programmer person had a sense of humor. I came across some text in the code which crack me up " Nosey little F#$% aren't you".
I wrote the software for two different companies that did inventory management for these devices. Large banks would send us orders to ship out these card readers to customers that have damaged ones like coffee spills. We had tons of these on those roller shelves and we'd program them for each restaurant/bar/retailer. We even had a crew that would do the board level repair on these.
Hi. I used this exact model at a comic shop I worked in until early 2000s. it is a modem. We did not have it connected to the register. It had to plug into the phone line. After swiping we had to punch in 4 digits of the card. And while we were verifying cards you couldn't do anything else. You couldn't even receive phone calls to the shop.
Yup, used one too at many places I worked, check verification was a long tedious process as I recall. The funny thing is I always assumed it was functioning like a keyboard or a mouse for the register. Never opened one and never thought it would be a whole computer inside.
Magnetic stripe modules are usually some form of serial, at least all the ones that I've worked with. One that I used was RS232, another used its own clocked serial protocol. The latter was actually the more popular one because it was cheaper. The clocked serial one would actually send the mag stripe something like 6 times per scan, both forward and backwards. There's 3 tracks on most magnetic cards, and credit cards mostly use track 1 and 2, both of those have the credit card number in some format, and one of them also has the name of the cardholder and some other fields. Debit cards and ATM cards use Track 3 as well. I never used the really old ones though, so there may be some out there that are just pure analog signal from the magnetic stripe. Yeah, track 1 and 2 are actually quite small.
Pci compliance requires these to usually be replaced every few years (6?) New ones like equinox pin pads are actually being phased out due to encryption errors. I deal with this crap every day
This is pretty cool. I used to work for a merchant processor that would program these and send them to small businesses. The group that did deployments had a special Visa test credit card that they used to dial out and test the unit. I think it would only let you change $1 or something nominal on it.
this kind of thing is so interesting to me. maybe because I've worked in retail for so many years and experienced older and less complex and newer and fancier card readers. picking these types of tech apart fascinates me!
Card readers are super simple. One of the lab projects we had to do at the UNI was to connect and read/write from/to it. Don't remember much, but they were like 2 lines of 80 characters (or 2 of 40?) stored on the card. The first line was just for "Face data" data already written on the card, like name and card number. "Normal" card readers/writers could read both lines , but only write on the first line. One could not easily obtain machines that write the second line (Although, really easy to hack, just change the head alignment, the two lines were on 2 magnetic tracks, one above the other). They had some sort of encryption on top. The connection protocol we called it "serial at swipe speed". So not really any protocol. The machine put at the input serial register whatever read on the tracks in real time, we had to do everything manually. (We had to disable the DOS serial interrupt driver and add our own). All that is 30 years ago, so .... can't remember much. But was simple enough for a lab project on first courses at UNI
Not only do they still make Z80's, they still make them in this package, specifically because there's lots of applications like this where it's more than adequate.
So I guess my good weekends now consist of watching 8 bit guy wash a garbage monitor and watching Ben set memory buffers via Arduino to a 29 year old junk e waste. My life really turned out.
Late to the game but for the interested: DIN sockets were for a single row dot matrix printer that did carbonless copy for the merchant/customer copies and a 3x4 PIN pad for the customer to punch it in without exposing the terminal to the public. Both were serial interface, but not ASCII.
1:46 YEEEEPP!! you are an unique person, every time you open something, you find something who makes you laugh!! LOL and as always im scrolling down to see the guy who has a story related with this kind of card sweepers!!
Ben, you know how much fun you could have with that, plugging in a standard 5 pin Midi cable into those connectors. You could create a single line Midi sequencer. lol.
With these Credit Card Swipers you would essentially dial up the provider you got the machine from at the end of the business day, through the machine and send your "reports" in. They would also be able to quickly dial out and check if a credit that was swiped was valid or over limit.
4:20 they work just like an audio tape. it's a read head link the one in your Commoder 64 Datasette. Some swiper just feed the Audio Signal in a ADC. Standart is 3 tracks but some use 5 tracks, so you can't read them with normal swpier.
Lol what are the odds that I found one of these at a thrift store a few weeks ago and did a tearddown video only to wake up and open youtube to see ben doing a teardown on it!
They're only $100 calculators because of shenanigans by Texas Instruments though. There's nothing worth even even tenth of that inside the calculators anymore.
"And a moonlit goat, be it fast or slow, it doesn't let go or save me" I'm pretty sure also that were the lyrics of that song, even though I don't know which song
We used an almost identical unit as a swipe clock in/out card for work up until about 2015. We would have to send the data out at the end of the day by pressing a combination of buttons.
Z-80's use I/O mapped peripherals using the IN and the OUT Instructions. One could certainly memory map them but that would be a waste of memory locations.
@@BenHeckHacks True but the Z-80 also runs at higher speeds than the base 6502 so it can make up for it. the instruction set of the Z-80 is also more robust. You can get a base Z-80 running at up to 20 mhz. Ifyou go with the eZ-80's you can go up to 50 MHZ and they are pipelined. I think they are both great CPU's still heavily in use today.
This is not for your average youtube consumer, but for the initiated. 19 persons didnt know what they watched, 14362 knew and 1154 liked what they saw. Thanks Ben!
The Z80 PIO is a Parallel Input Output device. Zilog also made the SIO, Serial Input Output. :) I have 4 PIO chips, but I can't find the SIO chips anywhere.
"Hello! I am a credit card swiper!" "Interesting. You have your own networking interface huh?" "I am ready to process your transaction!" "Not anymore. Now you run Linux and you're the controller for a file server." _later_ "Please wait. Sorting porn..."
Those strips have lines/tracks. Not all readers use all tracks depending on what you're using the strip for. Using them for access generally one requires one track because the card really just needs to identify itself to the access control system.
Oooooo so close!! hahahaha 18:00 "Oh no! `shiftOut` apparently is a builtin command!" 19:00 _proceeds to reinvent a version of `shitftout`_ Nice find with that little computer!
Make internet (modem, serial, terminal???) enabled calculator with BASIC from this device. Maybe even CP/M with Commodore Floppy drive. They are serial devices... Authorization to access device can be done with Magnetic card. See you in next video!
The DIN sockets look like you hook a 1541 to the one and a 1701 to the other. (I know. the video port on the C64 has the pins U shaped instead of circle shaped, that was the C64 PSU)
Hope you will publish all the info needed to build your calculator when it's finished. I'd use cherry key switches and maybe custom 3D printed caps and a larger display (LCD or OLED at least 128x256) and make a "desktop" sized unit. Maybe even with an SD card to store user programs (like the HP65-67-97). Must include RPN option! Looked like there were 4 diodes near the power jack, so it probably had a full wave bridge rectifier on the input, could take AC or DC with reverse polarity protection. Also looked like there was a heat sink with a few TO220 voltage regulators.
I used to use one that was very similar to that but with printer. it wasn't until after I left after working there for five years and it being probably their first card reader that they decide to retire it not too many years ago. It was solid even with a remote keypad hooked to the phone line. We had all sorts of trouble with some mobile units but that thing was solid never gave us an issue except for when the phone line went out, middle of nowhere Farm with a market country store kind of thing they had a long run a phone cable down the street.
They look like a neat little way to get a Z80 system to experiment with. Theres quite a few cheap on eBay, unfortunately for me they're all in the US and shipping to the UK is > $25! Makes it a lot less cheap lol.
I worked in a small family owned retail store when I was fresh out of school and even though this was old then they had that exact same card reader, it would connect directly to the phone line and dial up every time you put a transaction into it, it didn't connect to anything else you would just punch the amount in to the keypad and you would get a merchant copy that went in the register
Surprisingly enough, I'm just enjoying your teardowns. If you want to build stuff then you will. I like when you build stuff, don't get me wrong, but this is fine :)
This is the link Ben is talking about. This guy dumped the firmware and reverse engineered it already. He has a library with drivers for all of the peripherals inside this terminal. www.bigmessowires.com/category/tranz330/
Fun fact: The modem on credit card terminals (at least on the ones that still connect via phone line) use as low of a baud rate as possible. The amount of data to be transmitted is very small, and a faster baud rate would actually be slower when taking into account the amount of time spent during handshake negotiation.
Guaranteed that 80% of people at a gas pump would still use it without blinking
Yeah everywhere is upgrading except for gas stations.
Gas pumps by me still have these.
Our pumps all have chip readers now. The firmware is pretty hacky you can tell it was an afterthought.
And it should be that way, upgraded gas pumps have Gas Station TV.
From video to video it turns more and more into "Karaoke With Ben" and I wouldn't have it any other way haha
One of the DIN ports is probably for a thermal printer
Those connectors hook into the keyboard port on your PC as well as the register. These old systems actually used to transfer your card details to the PC in clear text. In 2000 we had a system that filled in a web form and processed cards through a website. The upc/barcode scanner added items to the checkout. Then you clicked credit or debit and it pulled up the payment form and filled in the total. Then you clicked the first field, swiped the card and it would fill in the name and number.
1:50 when Ben gets really exited his villain side comes out
also what a beautiful sight indeed
Back in the mid 90's I worked for a locally owned business that used this very unit. It could be used as a stand alone - no cash register or other equipment was needed, and that is how we used it. Swiped the card, input the amount, hit send, and that was that. It was connected to a phone line, and if you didn't have a dedicated line you were screwed if somebody else was on the phone. Using it in this fashion also meant I had to hand write a receipt. At the end of the day there was an accounting function of sorts I had to run - its exact purpose is now long forgotten.
There's an end of day settling process on most of these devices. If you don't do it, then the charge never actually goes through on the user's account. The swipe is just authorizing the card and putting a hold on it for the amount, the end of day actually tells them to take the money out.
One heck of a great 👍 show. Thanks 🙏🏼
I've seen two great videos about electromagnetism today. It's a coincidence both were released today but still amazing. ruclips.net/video/g1JlUcFKm5o/видео.html RUclips is ok today!
I made a ROM for these that lets it run BASIC over the serial port and echoes output to the VFD.
ROM: github.com/al177/tranz330_basic/blob/master/tranz330_basic.rom
Partial reversed schematics: github.com/al177/tranz330_re
Will give it a try! Is the RS232 5v?
@@BenHeckHacks It's +/- 12V RS232. The console is on the 8-pin DIN. TX is on pin 6, RX is on pin 5, and ground is pin 1. Settings are 9600,N,8,1.
IIRC you can get into the configuration / memory with Function 7 then 1 Alpha Alpha 66831 Enter as the password. After that it will ask for a number for a memory location. There is another password that I have long since forgot. I think it nuked the memory contents.
It’s been around 10 years since I had to reprogram a borked Trans 330 or 380. There is a service manual somewhere that says what the memory locations mean.
They do have a slow modem in it. I think it was in the 2400 to 9600 baud range. They were used to dial your card processor, check verification service or time card system.
I have never seen someone get so excited at a chipset before. this is awesome.
I have one and was only interested in the card reader years ago. Using a programmer to look at the software I discovered that
the programmer person had a sense of humor. I came across some text in the code which crack me up " Nosey little F#$% aren't you".
Love the Bush Jr. chuckle. Spot On!
I wrote the software for two different companies that did inventory management for these devices. Large banks would send us orders to ship out these card readers to customers that have damaged ones like coffee spills. We had tons of these on those roller shelves and we'd program them for each restaurant/bar/retailer. We even had a crew that would do the board level repair on these.
Hi. I used this exact model at a comic shop I worked in until early 2000s. it is a modem. We did not have it connected to the register. It had to plug into the phone line. After swiping we had to punch in 4 digits of the card. And while we were verifying cards you couldn't do anything else. You couldn't even receive phone calls to the shop.
Yup, used one too at many places I worked, check verification was a long tedious process as I recall. The funny thing is I always assumed it was functioning like a keyboard or a mouse for the register. Never opened one and never thought it would be a whole computer inside.
Magnetic stripe modules are usually some form of serial, at least all the ones that I've worked with. One that I used was RS232, another used its own clocked serial protocol. The latter was actually the more popular one because it was cheaper. The clocked serial one would actually send the mag stripe something like 6 times per scan, both forward and backwards. There's 3 tracks on most magnetic cards, and credit cards mostly use track 1 and 2, both of those have the credit card number in some format, and one of them also has the name of the cardholder and some other fields. Debit cards and ATM cards use Track 3 as well. I never used the really old ones though, so there may be some out there that are just pure analog signal from the magnetic stripe. Yeah, track 1 and 2 are actually quite small.
I have no words. This is just pure blend of nice crazyness and nerdstuff.. Awesome
Pci compliance requires these to usually be replaced every few years (6?)
New ones like equinox pin pads are actually being phased out due to encryption errors.
I deal with this crap every day
Good deal $3 for a Z80. A z80 kit sells for more than that in a store.
This is pretty cool. I used to work for a merchant processor that would program these and send them to small businesses. The group that did deployments had a special Visa test credit card that they used to dial out and test the unit. I think it would only let you change $1 or something nominal on it.
this kind of thing is so interesting to me. maybe because I've worked in retail for so many years and experienced older and less complex and newer and fancier card readers. picking these types of tech apart fascinates me!
They've really come a long way since this - I believe there is now a standard that if the case is opened, the memory of the device is wiped
All the cheap ones on ebay have sold in the last two days. Funny that.
Card readers are super simple. One of the lab projects we had to do at the UNI was to connect and read/write from/to it.
Don't remember much, but they were like 2 lines of 80 characters (or 2 of 40?) stored on the card.
The first line was just for "Face data" data already written on the card, like name and card number. "Normal" card readers/writers could read both lines , but only write on the first line.
One could not easily obtain machines that write the second line (Although, really easy to hack, just change the head alignment, the two lines were on 2 magnetic tracks, one above the other). They had some sort of encryption on top.
The connection protocol we called it "serial at swipe speed". So not really any protocol. The machine put at the input serial register whatever read on the tracks in real time, we had to do everything manually. (We had to disable the DOS serial interrupt driver and add our own).
All that is 30 years ago, so .... can't remember much. But was simple enough for a lab project on first courses at UNI
A new Ben Heck vid & a fresh-packed bubbler make Sunday morning wonderful.
I come for the tear downs, but I stay for the singing.
I stay for how excited he gets over Zilog
Not only do they still make Z80's, they still make them in this package, specifically because there's lots of applications like this where it's more than adequate.
So I guess my good weekends now consist of watching 8 bit guy wash a garbage monitor and watching Ben set memory buffers via Arduino to a 29 year old junk e waste. My life really turned out.
same... and mostly to keep my shit together while I procrastinate on the work I have to do...
You are not alone XD
On top of those two, when will LGR get back to the thift store?
Late to the game but for the interested:
DIN sockets were for a single row dot matrix printer that did carbonless copy for the merchant/customer copies and a 3x4 PIN pad for the customer to punch it in without exposing the terminal to the public. Both were serial interface, but not ASCII.
1:46 YEEEEPP!! you are an unique person, every time you open something, you find something who makes you laugh!! LOL and as always im scrolling down to see the guy who has a story related with this kind of card sweepers!!
Any tamper protection? Could the error be because of tamper protection?
If anyone is curious, I got one of these after seeing this video. It came with the power supply. Its output is 8.5VAC 1AMP
Ben, you know how much fun you could have with that, plugging in a standard 5 pin Midi cable into those connectors. You could create a single line Midi sequencer. lol.
I have to admit I had a similar thought
With these Credit Card Swipers you would essentially dial up the provider you got the machine from at the end of the business day, through the machine and send your "reports" in. They would also be able to quickly dial out and check if a credit that was swiped was valid or over limit.
4:20 they work just like an audio tape. it's a read head link the one in your Commoder 64 Datasette. Some swiper just feed the Audio Signal in a ADC. Standart is 3 tracks but some use 5 tracks, so you can't read them with normal swpier.
That VFD INCLUDING easily accessible driver electronics was worth the $3 alone
Came for Ben Heck Toni Braxton covers, did not disappoint.
Lol what are the odds that I found one of these at a thrift store a few weeks ago and did a tearddown video only to wake up and open youtube to see ben doing a teardown on it!
For the younger among us, there was a time when the keypad had to dial home to complete the transaction. Like... Dialup. It took a while to buy stuff.
Compuserve was a huge phone bank for Point of Sale devices back then.
The Zilog Z80 is 45 years old. Amazing that it’s still being used in $100 calculators.
They're only $100 calculators because of shenanigans by Texas Instruments though. There's nothing worth even even tenth of that inside the calculators anymore.
And it was, at least in part, financed by Exxon.
Well, TECHNICALLY they use a Z80 acclaim! MCU but yeah. It's a total rip designed to suck money out of the education system (like many things)
"And a moonlit goat, be it fast or slow, it doesn't let go or save me" I'm pretty sure also that were the lyrics of that song, even though I don't know which song
We used an almost identical unit as a swipe clock in/out card for work up until about 2015. We would have to send the data out at the end of the day by pressing a combination of buttons.
Definitely make a programmer calculator!! That's a great idea
Z-80's use I/O mapped peripherals using the IN and the OUT Instructions. One could certainly memory map them but that would be a waste of memory locations.
Yeah its pretty handy and the major advantage over the 6502 (which trumps the Z80 in clocks per instruction)
@@BenHeckHacks True but the Z-80 also runs at higher speeds than the base 6502 so it can make up for it. the instruction set of the Z-80 is also more robust. You can get a base Z-80 running at up to 20 mhz. Ifyou go with the eZ-80's you can go up to 50 MHZ and they are pipelined. I think they are both great CPU's still heavily in use today.
Coming to Wisconsin this next week! Love your content Ben. I have family in Sun Prairie and Madison.
Don’t forget about Culver’s!
mag card readers work exactly like casset tape players if I'm not mistaken
I luv how Ben gets excited about items of which others consider trash.
Hey Ben, you turn datasheet into code faster than my Delonghi produces a cup of java. Impressive.
Amazing how simple something for such a relatively complex task can be.
Swiper no swiping! ⭐
But can it run doom?
Wow, I remember reading Zilog advertisements in circuit cellar magazines back in the days when I didn’t know WTF I was reading.
When I managed a pizza place, we used one of these from 1999-2006. Not sure if they kept using it after I left.
Ben. You're super entertaining... Even when taking apart a card reader... Haha!
That Bush part had me in tears. I was laughing like an idiot hahaha
Magnetic card readers work just like audio cassettes, to the extent that you can often use the exact same hardware.
Z80 CTC Counter Timer,The Z80A was programmed in such a way to implement DES64
4:17 It makes me feel a little less insecure knowing that even the supergenius that is Ben Heck can't even count to three sometimes.
This is not for your average youtube consumer, but for the initiated. 19 persons didnt know what they watched, 14362 knew and 1154 liked what they saw. Thanks Ben!
"Ah. Technically diagrams and terms. Powerful agents against the uninitiated. But we are initiated, aren't we Bruce?"
The Z80 PIO is a Parallel Input Output device. Zilog also made the SIO, Serial Input Output. :)
I have 4 PIO chips, but I can't find the SIO chips anywhere.
Mouser has plenty of them in stock. Search for Z84C20.
@@TomStorey96 Cheers.
@@TomStorey96 Oh, that's the Parallel device.
Ah, damnit. Try Z84C40.
@@TomStorey96 Perfect, Thank you.
I would love to see you turn the main board into a Basic machine just to see if you could.
Reed relay, transformer and optos’ bog standard classic phone line front end so yes it plugs into a phone line
"Hello! I am a credit card swiper!"
"Interesting. You have your own networking interface huh?"
"I am ready to process your transaction!"
"Not anymore. Now you run Linux and you're the controller for a file server."
_later_
"Please wait. Sorting porn..."
"Basically put basic" - that sounds easy enough, sure
Those strips have lines/tracks. Not all readers use all tracks depending on what you're using the strip for. Using them for access generally one requires one track because the card really just needs to identify itself to the access control system.
I think this the first video of his I've seen where he doesn't have any obvious wounds on his thumbs.
Dig the late night public television broadcast vibe
The Shiftout instruction will do all that for you and allow you to do msb or lsb
Ben: I hope this was worth the $3
Ben: It's Zlog heaven!
I think it's safe to say it was worth the $3
Oooooo so close!! hahahaha
18:00 "Oh no! `shiftOut` apparently is a builtin command!"
19:00 _proceeds to reinvent a version of `shitftout`_
Nice find with that little computer!
Nice treasure you found, VFD and Z80!
Make internet (modem, serial, terminal???) enabled calculator with BASIC from this device. Maybe even CP/M with Commodore Floppy drive. They are serial devices... Authorization to access device can be done with Magnetic card.
See you in next video!
I am a simple man. I see a Ben Heck vidjyeo, I swipe right. This swiper be swipin' correctly.
Hahaha lol, WTF is in the water in Madison? Is there another US MK Ultra experiment with LSD in the water, in progress?
This comment made me laugh WAY harder than I should have, after the singing segment.
@@TJDunaway that was exactly the moment that I wrote it 🤣
The DIN sockets look like you hook a 1541 to the one and a 1701 to the other.
(I know. the video port on the C64 has the pins U shaped instead of circle shaped, that was the C64 PSU)
Hope you will publish all the info needed to build your calculator when it's finished. I'd use cherry key switches and maybe custom 3D printed caps and a larger display (LCD or OLED at least 128x256) and make a "desktop" sized unit. Maybe even with an SD card to store user programs (like the HP65-67-97). Must include RPN option!
Looked like there were 4 diodes near the power jack, so it probably had a full wave bridge rectifier on the input, could take AC or DC with reverse polarity protection. Also looked like there was a heat sink with a few TO220 voltage regulators.
Try Enter+7 at the same time, then password Z66831 (1,alpha,alpha for Z) or password 772462.
Is a credit card swiper misnamed? I've always gotten my card back.
Thanks for such a nice video.
I used to use one that was very similar to that but with printer. it wasn't until after I left after working there for five years and it being probably their first card reader that they decide to retire it not too many years ago. It was solid even with a remote keypad hooked to the phone line. We had all sorts of trouble with some mobile units but that thing was solid never gave us an issue except for when the phone line went out, middle of nowhere Farm with a market country store kind of thing they had a long run a phone cable down the street.
1980: look at this cool machine, you can play games and write programs!
1990: let's turn it into a card reader.
Card reader is probably more along the lines of what the designers envisaged the Z80 doing.
They look like a neat little way to get a Z80 system to experiment with. Theres quite a few cheap on eBay, unfortunately for me they're all in the US and shipping to the UK is > $25! Makes it a lot less cheap lol.
Holly shit Ben, you're a mind reader. I was looking for the name of that song (Baker Street) all day, it's been driving me mad! Thanks!
I don't know why but it's been on the radio a lot lately. MY MAN!
That top cam mount is doing wonders!!
We say zy-log in the UK, Ben. That board is a complete zed-80 support environment, fantastic!
I worked in a small family owned retail store when I was fresh out of school and even though this was old then they had that exact same card reader, it would connect directly to the phone line and dial up every time you put a transaction into it, it didn't connect to anything else you would just punch the amount in to the keypad and you would get a merchant copy that went in the register
oooh, a custom programmer calculator sounds fun!
like an HP-16C but actually financially feasible to acquire lol
Cash me Outside! I’m never going to dance again! LoL 😂
We need to see the Z80 board being repurposed to dial in some number and send some data!
Surprisingly enough, I'm just enjoying your teardowns.
If you want to build stuff then you will.
I like when you build stuff, don't get me wrong, but this is fine :)
CTC be programmable timer, prolly baud rate gentrificator for the DART?
You can actually get cards with magnetic strips and programmers on amazon. You could hack this and make it part of a security lock on your basement :D
Check out robinmart5 on telegram he is actually the best cc vendor have ever work with
I just cop some from him
Tested and trusted
I want to be as happy as Ben seeing a Zilog
my family has a stereo system with an identical 14 segment lcd screen system
Has anyone ever told you, that you have a lovely singing voice?? XD
These take AC. 19V AC. You can power them on 12V DC, but it will have no modem capability.
This is the link Ben is talking about. This guy dumped the firmware and reverse engineered it already. He has a library with drivers for all of the peripherals inside this terminal. www.bigmessowires.com/category/tranz330/
With a custom ROM and display/IO setup could you use this to, say, dial in to a BBS using its modem?
I don't see why not. It's a complete Z80 computer.
Axel Foley was freed up to take care of lesser crimes by the amazing Robocop program (🎶He is a robot... he is a cop. He is a Robo..cop🎶)
🎶They shot his head in, then he was deadin. Now he's a Robo cop🎶
Sweet! Could fix a lot of ColecoVision's with those z80s 😜
Doh! Nevermind, just one cpu chip I see
6:04 R.I.P. Ben, we'll miss ya buddy 😅
I should do this with mine, did not know it was quite this easy.
NOOOOOOOOOOOOO NEUTRON DANCE FROM WATCHING BHC WAS IN MY HEAD A FEW MONTHS AGO AHHHHHHHHHHHHHHH I CANT AGAIN