Z80 LED Matrix Message Display

Рет қаралды 48,562

6 жыл бұрын

A nostalgic look at my Z80-based LED message display from the 90s
More details about this project in Brett's video:
• Retro Electronics Proj...

Пікірлер: 204

@garydunken7934 6 жыл бұрын

Almost 25years, but that windowed EEPROM kept its program; amazing. My few year old dish washer packed up without any warning. Seriously, technology has come a long way in the last 20 years. Thanks for the video.

@donpalmera 6 жыл бұрын

G Yogaraja a single eeprom Vs a complex system consisting of mechanical, electromechanical and electrical assemblies.

@LukeDrumm 6 жыл бұрын

I noticed the most important built-in message is available: 1. MY HOVERCRAFT IS FULL OF EELS Good work.

@jamesellis5445 4 жыл бұрын

@Luke Drumm ...MEIN HOVERCRAFT IST VOLL VON EELS

@retroand 4 жыл бұрын

14. ABANDON HOPE ALL YE ENTER HERE!

@dennissyre8827 6 жыл бұрын

In any other country this eprom would have been erased by uv light I think. Thanks to the cloudy British weather this did not happen.😜 time to put a sticker on it.

@KegRaider 6 жыл бұрын

In Australia, we erase the EEPROM's after 11PM, so the epoxy doesn't melt from the heat.

@the_eminent_Joshua_E_Hrouda 5 жыл бұрын

Darth KegRaider no we don't! Haha. I'm from Au too. The thermosetting plastic doesn't melt in high heat, it burns

@the_eminent_Joshua_E_Hrouda 5 жыл бұрын

He might've had a label on it, and it fell off recently

@the_eminent_Joshua_E_Hrouda 5 жыл бұрын

🎼🎶If you like it then ya shoulda put a sticker on it!🎤🎵

@jfguy9696 6 жыл бұрын

You amaze me JUlian, to be able to remember the keys used to type in letters so far back in the 90s. Heck I at times have problems remembering this morning!!

@arifanwari3168 6 жыл бұрын

Ahhh those good old electronics, those were the days. Very neat construction and excellent project. Now just bring the EPE fruit machine back. Thanks I enjoyed this video, thanks again Julian.

@malgailany 6 жыл бұрын

With all the built-in features and documentation, looks like a commercial product. Very nice, Thanks

@JulianIlett 6 жыл бұрын

+Mohammed Algailani It was a magazine published project.

@MindMeetMaker 6 жыл бұрын

Love the hand controller for programing it nice idea.

@Educ8s 6 жыл бұрын

Fantastic! Great job Julian!

@VictorNoelCoryPaz 6 жыл бұрын

educ8s.tv Big fan of you both here!

@Anvilshock 6 жыл бұрын

Without further ado: Hi! You here, too?

@Educ8s 6 жыл бұрын

Hey! I am watching Julian for a long time! He is doing a great job here!

@nickd2084 6 жыл бұрын

Hey Julian. I built this project when I was in TAFE. I used double sided PCBs. I also ordered the programmed ROM from you and modified it so the pound sign came up as dollar signs. I changed the buzzer for self osilate version. Small world. (I'm in Australia)

@JulianIlett 6 жыл бұрын

+Nick D Oh cool, I probably have your order letter in my loft somewhere.

@JoakimKanon 6 жыл бұрын

Impressive project! How on earth do you remember the key combinations on a project from the early nineties?! 😮

@WalterFabian 6 жыл бұрын

Probably you can boot the display and return 50 years later to find that is still working perfectly. Great build Mr. Ilett!

@illchmann 6 жыл бұрын

And everything on single layer PCB with hand soldered bridges. This kind of projects were fun!!

@battlecoder 6 жыл бұрын

I love Z80 projects. This one looks so well done and so carefully documented! Wonderful job.

@mUbase 6 жыл бұрын

Excellent work Julian. Thanks for sharing with us!!

@mtslyh 6 жыл бұрын

Very cool. Brings back a lot of memories of early projects with Z80s and 8081 microcontrollers. It is amazing that we can now do all of this with a single tiny PIC microcontroller for just a couple of bucks. Thanks for the trip down memory lane.

@leighmillward 6 жыл бұрын

New video from Julian. Was going out for a jog but saw this and cracked open a tin.

@tahirsutube 6 жыл бұрын

Great project Julian!!! Love it!!! Great Fun and it still works!!!

@drewduncan5774 6 жыл бұрын

Another enjoyable video, Julnat!

@BloodAsp 6 жыл бұрын

That was great fun watching you explain one of your early inventions!If you have any more, this is a great subject!

@JamesMossR33 6 жыл бұрын

Amazing! Thanks for sharing this great project.

@Slider2732 6 жыл бұрын

ELLO - Electric LED Light Orchestra ? Great project and a lot of fun to see it running.

@mtslyh 6 жыл бұрын

"My hovercraft is full of eels!"...... Hilarious!

@battlecoder 6 жыл бұрын

Oh, yes, the infamous phrase that (as we all know) would later be adapted to the big screen as the 2006 action film "Snakes on a plane".

@BlackEpyon 6 жыл бұрын

Nothing like digging up your old project, only to have forgotten how it even works :P

@manickn6819 6 жыл бұрын

Excellent project. Quite happy you shared. Having seen this I like the idea. Think I will dig up some of my old projects and put them up. Immortalize them assuming KZfaq does not go down.

@NNNILabs 6 жыл бұрын

Wow, the fan-out must be crazy!

@allthegearnoidea6752 6 жыл бұрын

I have just started playing with Z80s for the first time so really enjoyed this as I’m thinking of building something similar. Thanks for sharing

@mattmoreira210 6 жыл бұрын

AllTheGearNoIdea please give it some sort of eprom-based keypad when you do. Should make programming messages a lot easier. P.S.: please post it on KZfaq so people can see it. Would be awesome!

@allthegearnoidea6752 6 жыл бұрын

Matheus Moreira if you have not already seen it here is 4 videos on my recent z80 kit build kzfaq.info/get/bejne/btSTerGCzbyzgac.html

@luisvespe 6 жыл бұрын

I really appreciate the tutorials on the beloved cpu Z80, I had a subject on the processor while studying electronics in the 90's, greetings from Rancagua, Chile

@davidwithnalll2987 6 жыл бұрын

This is absolutely brilliant. You should have taken this on Dragon's Den, I reckon you could have made millions. I would buy one

@russellfroggatt 5 жыл бұрын

I ask myself who has downvoted this? Great project.

@madbstard1 6 жыл бұрын

Lovely bit of work Julnat :D

@irgski 6 жыл бұрын

maybe donate it to the Bletchley Park museum...dust and all!! Amazing that "0's" and "1's" didn't change over the years!

@neslin99 6 жыл бұрын

Emojis from the ‘90’s, that’s awesome. :)

@canadianguy1969 6 жыл бұрын

I used to love working with Zilog's Z80! Great project!

@JoelHudson 6 жыл бұрын

👏Well programmed sir! 👏

@andymouse 6 жыл бұрын

great as usual

@Mike_Downey 6 жыл бұрын

The 5 button keypad reminded me of the Quinkey from the 80s where, if I remember correctly, the keys for each letter were supposed to resemble the letters themselves.

@TomStorey96 6 жыл бұрын

Wonderful! Amazing it still works too.

@Ecobion 6 жыл бұрын

Very impressive!

@DogRox 6 жыл бұрын

A sweet retro system! :-) nice job dude :-)

@eddiespencer1 6 жыл бұрын

Very cool! I like it. Making a modern version might be a fun project, too.

@kissingfrogs 6 жыл бұрын

that is some might fine neat work.

@docfoot316 5 жыл бұрын

Great project

@Disillusioned_one 6 жыл бұрын

Amazing it still works Julnat.

@Laziter73 6 жыл бұрын

Very impressive work :)

@JulianIlett 6 жыл бұрын

Thanks :)

@karolorszulik3154 6 жыл бұрын

My goodness my that's so very cool!

@RWBHere 6 жыл бұрын

13:11 My hovercraft is full of eels! The mind boggles. Thanks for sharing a fun project, Julian.

@davidwebb2318 6 жыл бұрын

Brought back fond memories of the Z80. Awesome job on the row and column construction, must have taken ages to solder all that lot together.

@JulianIlett 6 жыл бұрын

+David Webb Yeah, more than 2000 solder joints.

@yoknapatawpha 6 жыл бұрын

I don't envy whoever had to drill all those PCB holes! ;) Cool project, thanks for sharing.

@UltraRik 6 жыл бұрын

Ussjoy, Julnat! I enjoy your video, keep up the good work!

@handle_and_gretel 6 жыл бұрын

nice work julyan ;)

@gordonspond8223 2 жыл бұрын

So cool!

@AK90 6 жыл бұрын

I just got my DSO138 Oscilloscope I ordered because of your video :D Lets get to soldering! I hope it isnt broken :P

@pcuser80 6 жыл бұрын

Wow as a Z80 FAN this very impressive. Very nice job. Can you post the assembler listing please.?

@joelwaugh987 6 жыл бұрын

HELHO. I don’t know why that made me laugh so much! Thank you!

@Slikx666 6 жыл бұрын

Nothing wrong with that! Love how the boards are tidy.

@diddyman1958 6 жыл бұрын

13:15 'My hovercraft is full of eels' Haha LOL

@750SonyP 4 жыл бұрын

I still have a Z80 Morse Code generator I built in the late 70's on a breadboard. I use to erase such eproms in bright sun light for a couple of days or more.

@bloodyl_uk 6 жыл бұрын

Yay... My hovercraft is full of eels!!!!

@bloodyl_uk 6 жыл бұрын

It's a pity John Cleese isn't here to see you finally deliver your killer punchline!.

@simontay4851 6 жыл бұрын

My nipples explode with delight

@eddiespencer1 6 жыл бұрын

Leave them to breed. It is their home now.

@kingearwig 6 жыл бұрын

Very nice. You should make it into a KZfaq subscriber counter.😁

@JulianIlett 6 жыл бұрын

+Bill Mears Awesome idea. I might actually do that. Cheers Bill.

@cbm80amiga 6 жыл бұрын

For such application it is easier to use esp8266. I have such videos on my channel. Z80 has no WiFi so alone is useless :)

@leisergeist 6 жыл бұрын

ESP connected via the PC interface Brett showed off perhaps, or emulating that keypad?

@baileyharrison1030 5 жыл бұрын

cbm80amiga I don’t think that’s the point.

@Sprengi86 6 жыл бұрын

Cool Beans, Julyan!

@pvc988 6 жыл бұрын

Nice display. ESP WiFi module instead of the keyboard would make nice addition.

@jlucasound 5 жыл бұрын

That is the Company I work for! HelHo. It is deep down in the South. :-)

@EDToasty 6 жыл бұрын

I would love it if you tried to remake this project and see the size and functionality differences from 1993!

@davegtar 6 жыл бұрын

Create an arduino code that translates keyboard keys or "type and send" through serial to button presses for easy programing! A mix of old and new technology. Just one pulse on each of the 5 switches from the arduino.

@bluedeath996 6 жыл бұрын

It is important that you can display "my hovercraft is full of eels" with a search term.

@772pcs 6 жыл бұрын

Awesome!

@pirateman1966 6 жыл бұрын

Very nice. You should cover it in saran wrap or something to keep it in good condition.

@____________________________.x 6 жыл бұрын

Time for an updated Z80 project I think, plenty of interest judging by the number of retro Z80 designs being published on the internet. One that came with a monitor program would be ideal. Better than that boring Raspberry Pi where everything is done for you.

@0xbenedikt 6 жыл бұрын

I was working on such a design a while ago, but ran out of time. Maybe combine a low-end FPGA (for IO interfacing) with an Z80? We could also use flash instead of RAM or ROM by interfacing a SPI Flash through the FPGA.

@qwertykeyboard5901 5 жыл бұрын

i love the z80

@mc_cpu 6 жыл бұрын

Was the idea to sell them? Looks like a lot of effort went into the manual too.

@eddiespencer1 6 жыл бұрын

Looks like a proof-of-concept work-up.

@gordonspond8223 2 жыл бұрын

13:15 My hovercraft is full of eels... (Where have I heard that before??? Ha ha ha)

@agentbsik 6 жыл бұрын

Hi Julian, what´s your professional background? Electrical Engineering?

@patprop74 6 жыл бұрын

fantastic project! you should do a re-visited build video with RGB lights. let us know what to order and build along with you as the videos progress

@andymouse 6 жыл бұрын

this well cool sir !!

@UpcycleElectronics 5 жыл бұрын

15:30 Helho and thanks. Cool etched design BTW.

@MikeHoughtonasUnit8720 6 жыл бұрын

very interesting

@grantgiesbrecht2236 6 жыл бұрын

I love that keypad! Now I really want to see someone replace their computer's keyboard with a 5 button pad like that! 😂

@attilarivera 6 жыл бұрын

awesome.. i jad a computer based on a z80 in the early 80's. MSX-XPRESS 👍😆

@Chriva 6 жыл бұрын

And people are trying to patent input devices like this one. You beat them by several years :D

@Gooberslot 6 жыл бұрын

I'm amazed you can remember any of the input codes. I don't think I would be able to.

@droptopsalvador1864 6 жыл бұрын

Fantastic work Julian! If time and money allowed it, I'd love to build something like this! Also, when are you planning on continuing the 8bit computer series?

@thewhitefalcon8539 6 жыл бұрын

"No flash memory back in the 90's" - AFAIK Flash is an evolution of EEPROM, so you could say there was. (Unless you didn't have EEPROM either)

@alien8r33d 6 жыл бұрын

Nice. You did get it out in 2014 though (LED Matrix Displays and Non-Optimal Byte Orientation).

@DanTheMiddleagedMan 6 жыл бұрын

such an awesome project and so well executed, could have sold these for sure. how long did it take to complete?

@rustycrowbar7609 6 жыл бұрын

Nice.

@yusuf120581LED 6 жыл бұрын

Awsome

@edgeeffect 6 жыл бұрын

Well done on remember your keycodes... even if you do keep your old projects in the hoover bag. ;) My hovercrafft is full of eeels... my hovercrafft is full of eeels.

@debug9424 6 жыл бұрын

Julian, put something on the EPROM. The ambient UV levels will slowly erase it.

@ciprianciprian5228 6 жыл бұрын

16:48 when you wow! your own project...

@adrianrabbage4996 6 жыл бұрын

Cool Beans! ;)

@Tjousk 6 жыл бұрын

Neat!

@DoRC 6 жыл бұрын

This would make a cool vu meter

@Roy_Tellason 4 жыл бұрын

I remember using an instrument way back in 1978 that was basically an audio spectrum analyzer, used to properly set your equalization so that you didn't have any feedback. Unfortunately instead of a single large board to hold the LEDs the thing was constructed on a board for each column, which made it a real bear to work on...

@kabeza79 6 жыл бұрын

How easy it looks like now and how hard it had to be 25 years ago

@ClaudiupromotionSRL 6 жыл бұрын

Hello,I watch your videos, them are really helpfull and as well entertaining. Can you make a video about DC Voltage Stabilizer with Adjustable Series Element? Because I can't find anything related on the internet. I need to understand the circuit diagram for my college and I'm sure you can help me and other people interested. Thank you!

@jamesvalentine925 6 жыл бұрын

I've got a Z80 along with ram chips and windowed rom chips which I pulled from an old large format plotter a few years back. Been wondering what to use them for (trying to ignore the obvious speccy clone).