I still have one of these in my attic. I did have it working once and it was ok not bad picture for its size.

A really interesting video, so I thought I would have a go! Which piece of software do you copy over and how? Please excuse my ignorance, it’s says on the git hub as UF2 file! I could find 2 in the git hub but it won’t drag and drop! Thanks for any help.

Wow, absolutely BRILLIANT! That was a "daring" move, and it worked! THANK YOU, great video!

I started the same way. He can give you more complex code but with huge errors (they don’t work). It can be faster in assembly.

Slow? Sure, but still fascinating. Thanks for putting this on. It was really helpful that you including the 'getting it to the emulator' (some detail in the description would be nice too) that's one thing I've always be frustrated by in playing about in retro-computing on modern platform.

Probably the engine had 50% PHP training and 0.5% for BASIC.

I got one of Ebay made up. I used a 48K Plus case with some modifications.

I loved this video. I also built my own, however the connected USB Keyboard does not work at all. I have tried several keyboards none of them work. Also tried some UF2 files to upload, but also did not help. I thought the USB hub was the problem, so I tested three different ones. No success. Is there any idea, how can I find the problem? How can I debug?

Congratulation!❤

Well, a simulated loading is nice to have for the nostalgia, but a quickload option would really not be a luxury nowadays.

Hi you may be interested in this I bought a Raspberry Pico with the HDMI , SD card and a usb C port all on the main boar on Aliexpress from a company SpotPear which you can make a game console or a computer from but haven't tried it yet .

Wow good work ❤

very impressive, the good old days back in 80s

I just purchased the PicoZX, based on the same idea but using vga for it's output. Great bit of kit, fits inside of an existing speccy and can use the existing keyboard. Only down side is, check your tv has vga in, mine does not lol (I really convinced myself it did before purchase!), and I have now purchased 3 vga to hdmi converters trying to make it work on my tv and none recognise the vga signal, just give 'no signal' (it does work on a vga monitor though). The down side is if you build your own hdmi version as you have you cant use the 8x8 keyboard matrix and use an original keyboard at theres not enough pins on the pico, only if you use the vga version that you cant seem to convert to hdmi using a converter due to the signal somehow being a non standard version of 640x480 60hz? beats me!...

Anyone suggest a uf2 file for pico with lcd sdcard and usb keyboard combination, want to make one for my daughter.

This is really cool, but the Pi Zero W is widely available now, includes HDMI out, a micro SD card slot, and USB input for keyboard (or you can make your own and use the GPIO pins). You spend more on parts for the Pico than the Zero W costs.

I spent ages trying to get this to work, I just couldn't get a HDMI signal on my Samsung TV. I rewired it many times, swapped HDMI cables, HDMI breakout & Pico board and still nothing.. as a last resort I tried it on another monitor and it worked! I got as far as you for now, will still try and find out why it doesn't work on the TV though. (EDIT: +1 hour later and I have sorted the TV issue. The breakout needed 5v in from the Pico VBUS. I didn't know this >.< )

Tip: Put the pins in the breadboard, use some blutak under the board to prop it up to level and solder in place. Muuuch easier!

Wondering if any custom PCBs may help? If so, would love to sponsor and reach any collab together! (PCBWay zoey)

beautiful 🎉😊

Nice video, think im going to try this I have a PICO in the draw not being used :) it would be nice if I could get 2600 running on it. I also would like to make a ZX81 work as that was my first computer...

Great video. Thanks for posting.

will there be keyboard option?

Its looking good, any updates?

Wow. I love. Sir Clive would have loved it aswell, Im sure about that :) Will have to try to make my own!.

Nice vid! Been toying with the idea of a Speccy on Pico - and it looks like someones gone a dozen steps further! Don't be afraid of using the breadboard to hold the pins and shimming the PCB to tack a few pins (ideally remove to flow the rest, though I personally don't.) While I could point at the odd pin you may have done better, most were fine and appears you re-flowed later anyway - it's a knack and you're pretty much there, and if it was the solder and/or duff flux, you couldn't really get much better from it.

I had that book. No Tempest though right? Strange. Loved that book.

Hi there, the name jumping boy is new for me. I know this game also as fishing boy. Thank you for showing such an amazing game. Greetings from RetroGameCity.🤗☺

Amazing! I still remember my friend's iPod. Most of us kids had DS, DS lites, DSis and PSPs, but he didnt care so much for games and a lot more about music. His parents were quite rich so he showed up to school with one of these!

Oh man, I had it and Fishing boy as well! So much awesome time spent on these devices!

What price did you pay for it? Thanks

Mau gamesnya,belinya dimana?

Thanks for the trip down memory lane! My best friend and I bought a pair of these the summer before our senior year of high school 1997-98. Memory is hazy, but I think they were around $250 USD (65 hours of work at my min wage fast food job). I used it to do a few writing assignments, and I remember us transferring games and files back and forth in school using the built-in IR blasters. I also bought a PCMCIA 28.8k modem, and could surf the internet on it (given access to an analog phone line). It had a road atlas as well, no GPS obviously, but it was still pretty cool as a new driver. Certainly a waste of money given the limitations of the device, but I still remember how amazing it felt at the time to have a computer small enough to fit in a pocket. I ended up giving it to a girlfriend who didn't have a home computer, and she dumped me a few weeks later. :) Such is life.

Bagged one of these weird little things with the slip cover for $2 at a second hand shop - I feel like carrying it around as a conversation starter but I doubt I'd get much conversation out of it. Very cool though

Ordered one of these too! Last comment just vanished for some reason Mostly going on the shelf, but if I was to put in the guts might consider an Espressif ESP32 microcontroller

I had one of these for my ZX81, it was a fun thing to play with.

thank you so much for this video. Would it be possible to show the whole instruction here? I want to make my own box for it as its in my family since childhood and i wanted to make it like sealed for my own satisfaction and i cant find the instruction

oooh, that's my post from the forum! 3 seconds of fame, lol. Progress is looking good. From that post, I am also using a Bank to hold my data... my simulator will probably use multiple banks to handle up to 32 full streets (4 streets per 16KB Bank).

Cool!

looks great! Interested to know how you got the colision detection on the walls working (you mentioned a data set?) are you checking every move for specific values? Also if you dont know theres a great facebook group for basic on the zx spectrum next...lots of helpful people on there 🙂

Very cool!

Look great I'm looking forward to seeing the progress and I agree Remmy's tools are terrific.

I have next to no clue how print at operates. Column and Row but how exactly does the zx81 do this. I can't tell where the column starts and ends. Does it start left to right base ten or do I do up to down and start at ten?

The LCD screen is fine, the module doesn't get enough voltage due to the resistance in the battery compartment. All those Grandstand models have the contact issue. They build up oxidation on the contact fins, and they lose spring tension with every battery change. In order to make it work you have to remove the oxidation with some 800 grit sand paper, and you have to bend all 4 contact fins towards the battery by about 1 to 2 mm.

Bought one of these with all my saved pocket money, after brother made/encouraged me to do so. It was terrible

It is possible to power these from a 9V PP3 battery! The one I just got from eBay had already been tested using one, and it was still in the TV when it arrived. I tried it myself and it worked. Not sure if it would cause any damage if used long term though. I've swapped it out for a 6V battery holder instead.

Turn it on

Cool unit. It's amazing they run on double-A batteries. And apparently they're still prohibitively expensive 25 years on. No chance that I could get one... the interface reminds me quite a bit of Windows 3.1 which I used back in school.

I'm very new to the next I'm loving finding out what it can do

I found one of these that I got over 20 years ago. It still works! Is there an unlock code? I'd love to get into my secrets.