Spectrum Computing

Deviants

Morning all I am looking at making use of an old pi 1 in a new project. I’m thinking of putting one in a +2 case (still to source) with two joystick ports and scart output. It’s just occurred to me that the pi1 only has 26 GPIO pins, not 40, which means there are enough to get a keyboard working wit...

I can’t get this to work in the zx baremulator. It’s fine in fuse. Anyone got any ideas? It looks great

You dont use them all. I think spectrums use the Atari layout (eg. https://atariage.com/forums/topic/22547 ... on-ground/).

Good work, it looks great. I recommend installing a joystick port. Using an original quickshot II adds some extra magic. Is there a link to show where to add a joystick port, that would be great but does this emulator support original joysticks??? Cozy There is a bit of discussion earlier in this t...

I started a project i wanted to do as i had a zx spectrum after the Vic20 back in the day, the zx spectrum next was way to expensive so i started looking at the Raspberry Pie projects using this Emulator. The whole project cost me about £100.I did look to buy all brand new zx spectrum parts (£62) b...

I've made a quick write up of how to build everything in case you fancy a go https://tomdalby.com/other/pi3aspeccy.html TomD Tom That is a great guide. Wish it existed when I made mine. One think that might be worth adding, for the benefit anyone looking to do similar, is that it’s possible to also...

RockStar Ate My Hamster

Mort, they look great.

My plus is similar but has far fewer wires. What is the board with the red and orange cable? That the LEDs?

The common/ground pin of the joystick connects to one of the KB2 lines (1 or 4) and the directions/fire-button connect to each of the five KB1 lines. When i soldered my circuit i left two extra rows of holes before the ribbon connectors on the stripboard so i could solder the wires going to the d-s...

Thanks for the reply. I had seen your cursor post and considered having a go, but it’s beyond my abilities. Looks great though.

Perhaps you are onto something with the diodes.
By my reckoning, the joystick has to connect to KB1, but I don’t have any diodes on that part of my circuit, only KB2.

Evening I have ANOTHER question. Apologies for spamming... I have got my 48k plus keyboard working beautifully via the GPIO pins. I have also, separately, got a joystick hard wired & working (interface2 it seems). Has anyone successfully managed to run both a keyboard and a Joystick from the pin...

Anyway, I have got it working but when the baremulator boots up it says ‘you need a gpio keyboard connected’. Does anyone know how I stop this from being displayed? The emulator can't detect when a GPIO keyboard is connected, so when don't find any USB keyboard, warns about that. No, the message is...

Morning In addition to my joystick question above, I have run into another issue and would be grateful for some guidance with. I am in the process of wiring my old plus keyboard to the GPIO pins of a pi 2 (I fried my 3a+ yesterday due to some lousy soldering...). Anyway, I have got it working but wh...

Afternoon, all. Firstly, I’d like to thank Jose for the incredible emulator. It’s outstanding. Secondly, I have a question that I would be grateful for some help with. Yesterday I successfully rewired my old quickshot 2 and got it working in windows using a retronic design usb to db9 converter. Idea...