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  • Sending key presses to the spectrumfor a project I want to send automated keyboard presses to the ZX via a micro-controller. Is it possible to send these through the expansion slot? …

    ... , what the PS/2 keyboard interface does.

    You can ... do it externally, via an interface connected to the rear port ... =0 and RD=0 using electronics (say, two OR gates from ...
    mcleod_ideafix mcleod_ideafix August 2012 Hardware
  • Spectranet updateHi all It's been a busy summer, and in any case I've wanted a little bit of a break from doing Speccy stuff to avoid it getting old (pun intended). …

    ... you. But unfortunately mass produced electronics has set an unrealistic expectation ... the day, remember that an Interface 1 and Microdrive back in ...
    Winston Winston September 2012 Hardware
  • SPDOS ImageHi I am new to the forum although I am a reader for more than a year now. I found a old SPDOS (Watford Electronics) system that I used during middle…

    ... for the Milenia K disk interface which was sold here in ... the same as Watford Electronics' SPDOS disk interface and also uses SPDOS ...
    zxbruno zxbruno September 2012 MIA/STP/SDP
  • SPECTRA New from Paul FarrowLooks good! Read about it [URL="http://www.fruitcake.plus.com/Sinclair/Spectrum/Spectra/SpectraInterface.htm"]here[/URL]

    ... can just plug in the interface and go, no extra wires ... and vsync ports to the interface, and either detect the sync ... support 128K machines, a video interface also has to take account ... screen mode. I'm no electronics buff but option 2 might ...
    BloodBaz BloodBaz October 2012 Sinclair Miscellaneous
  • SPDOS ImageHi I am new to the forum although I am a reader for more than a year now. I found a old SPDOS (Watford Electronics) system that I used during middle…

    There's an interface for sale up on eBay ... , but no disks, just the interface and manual:
    [url]http ... /itm/Sinclair-ZX-Spectrum-WATFORD-ELECTRONICS-DISK-INTERFACE-/221136552031?pt=UK_VintageComputing_RL& ...
    Andrew Barker Andrew Barker October 2012 MIA/STP/SDP
  • Ay Real Time Synthetizer SoftwareSpectlemen and Spectladies!It's been a long time that I'd like to ask this.... I ask thee to create a new musical software for our ZX Spectrum machi…

    ... for an interface without the interface and readable documentation ... ="http://www.compuphase.com/electronics/midi_rs232.htm"]related RS232 ... .html"]Ventamatic MIDI interface schematics and information[/ ... that the joystick/MIDI interface hypothesis is impossible ...
    toadstool toadstool November 2012 Development
  • Altera CPLD vs Xylinx FPGAI will dig into the world of FPGA's, mainly to find something that can replace one or more GALs for my current and new projects. And it's never bad t…

    ... to implement a Kempston interface and maybe a 115kbps ... www.amazon.co.uk/Digital-Electronics-Laboratory-Experiments-Foundation/dp/ ... start small.... say a Kempston interface as thats only two logic ...
    From USB to PCMCIA interface and Process Off Loading to ...
    Zetr0 Zetr0 January 2013 Hardware
  • Plus DI would like to get a Plus D disk drive interface for use with a Spectrum 128 I plan on acquiring in the future (I don't have the patience to use an …

    ... a Plus D disk drive interface for use with a Spectrum ... ). Problem is, my knowledge of electronics and connectors is limited at ...
    1024MAK 1024MAK January 2013 Hardware
  • Microcontrollers and the SpectrumBeing unusually busy lately, I didn?t get a chance to comment at the time on a remark in an older thread, but I shall take the liberty of doing it no…

    ... build a PS/2 keyboard interface for the internal keyboard header ... got everything right on the electronics side and managed to produce ...
    napoleonblownaparte napoleonblownaparte January 2013 Hardware
  • Microcontrollers and the SpectrumBeing unusually busy lately, I didn?t get a chance to comment at the time on a remark in an older thread, but I shall take the liberty of doing it no…

    ... build a PS/2 keyboard interface for the internal keyboard header ... got everything right on the electronics side and managed to produce ...
    Dan Antohi Dan Antohi January 2013 Hardware
  • The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…

    ... attached to the floppy interface, and it therefore requires ... expect that the electronics of the interface are much simpler ... might struggle with subtleties of electronics terminology at times.)
    ... received a repaired Disciple interface with PAL chips that ...
    zub zub February 2013 Hardware
  • Spectrum + / kempston interfaceI'M VERY NEW to the cult of spectrum (have introduced myself elsewhere) so please don't hurt me for asking what may seem a silly question to others. …

    ... think pretty-much every joystick interface I have tried over the ... because they often contain active electronics like autofire etc. In which ...
    napoleonblownaparte napoleonblownaparte February 2013 Hardware
  • The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…

    ... is fetched. The PAL/GAL electronics will introduce a few nanoseconds ... that for the Beta disk interface, the disk routines are invoked ... the paging of the Beta interface's ROM were delayed at ... seem to be suggesting, the interface would not work...[/QUOTE]
    roko roko February 2013 Hardware
  • 1x XC9572XL or 2x XC9536XL?I'm working on some projects which do not settle with only one XC9536XL CPLD. Main reason is of course the lack of user pins on the XC9536XL, I need …

    ... n00b when it comes to electronics design, i hope you will ... left for all Kempston joystick interface logic ;)
    So expect a ...
    bverstee bverstee April 2013 Hardware
  • Cases for New Hardware - Yes or NoAn opportunity has recently arisen whereby I may be in a postion to offer cases for alot of the new hardware which is being made at the moment. Some…

    ... the "cottage industry" end of electronics where we're making perhaps ... reasonable box to put your electronics in which doesn't cost ... box will require. When things interface the way Speccy stuff does ...
    wile e coyote wile e coyote July 2013 Hardware
  • Help with joystick interfaceHello to everyone! Just got me a joystick interface I have never seen before. I don't have instructions for it and I don't know if it required some…

    ... just now to the disassembled interface and joystick (sorry for the ... I manage myself allright regarding electronics, so I can't tell ...
    Renegade Renegade September 2013 Hardware
  • Seen any ebay madness?? post it here !!!What with some high prices fetched on speccy games over the past few days , thought it might be an idea to keep a WOS record of some of the higher fi…

    ... find madness was my joystick interface going for this price [url ... /SINCLAIR-ZX-SPECTRUM-KEMPSTON-MICRO-ELECTRONICS-JOYSTICK-INTERFACE-/290990417008[/url]
    :-)
    mcjoecool mcjoecool October 2013 Sinclair Miscellaneous
  • Downloading code to physical hardwareHi folks, Back in the day, my devkit was a TRS-80 and I had a simple connector device from the TRS-80 parallel (printer) port to the expansion bus o…

    ... ?) and stripboard interface you built. (I'm interested in Electronics.)
    Did ...
    spectrumlinux spectrumlinux December 2013 Development
  • Downloading code to physical hardwareHi folks, Back in the day, my devkit was a TRS-80 and I had a simple connector device from the TRS-80 parallel (printer) port to the expansion bus o…

    ... ?) and stripboard interface you built. (I'm interested in Electronics.)
    Did ... didn't actually build the interface, I got it from John ...
    David Jones David Jones December 2013 Development
  • Please explain how a Kempston interface circuit works.Can someone help me understand how a Kempston joystick interface works, as I want to design and build my own as an experiment. I understand switches…

    ... is there any reason for interface designers to avoid using ... variations of Kempston compatible interface, using a number of ... copy of a Kempston interface using these/this chip" ... br />
    Make: Kempston Micro Electronics
    Edge conn: ZX81 size ...
    1024MAK 1024MAK April 2014 Hardware
  • Currah uSpeech and Composite modOne more silly question from my side. Most of my Spectrums have a Composite mod. Is it possible to use a Currah uSpeech with such a modified Spectrum…

    ... a small electronics manufacturer that produced a programmable joystick interface with a ... nice because the spectrum + joystick interface + currah module feel like one ...
    Renegade Renegade May 2014 Hardware
  • USB Keyboard Interface interest?Hi, I was wondering if anyone else out there is interested in a USB interface for the ZX Spectrum (particularly the rubber key models, though it sho…

    ... can just have your keyboard interface plug into the edge connector ... /> You could even make an interface with both USB and PS ... black +2 their electronics are different so the interface becomes a bit ...
    guesser guesser May 2014 Hardware
  • eBay 128K Spectrum RGB cables overheat the Spectrum!?Hi everybody, For a long time I've wondered why Spectrum 128K Toastracks were overheating when using my Retro Computer Shack RGB SCART cable. Today …

    ... /SpectraInterface.htm"]SPECTRA SCART RGB interface[/URL] for the 48K Spectrum ... /> An advantage of my SPECTRA interface is that it uses the ... great deal of experience in electronics and specifically TV circuits that ...
    Fruitcake Fruitcake May 2014 Hardware
  • Hot plugable edge connector?Could the spectrum's edge connector have been made hot plugable without adding much to the manifacturing costs? I was thinking along the lines of a…

    ... and pulled out of an interface that I was using (not ... out) and then removed the interface (which is when I discovered ... edge-connector on a joystick interface cause the damage.

    electronics), followed by despair (what if ...
    1024MAK 1024MAK September 2014 Hardware
  • Tinkering with DMASo, some afternoon tinkering... [img]http://photo.alioth.net/tmp/dma_small.jpg[/img] The purpose of this all is to see what's possible using the Xi…

    ... the one used for the 'Interface 1bis'. The advantages over a ... a microcontroller on it. Much electronics tinkering is about what just ...
    Winston Winston November 2014 Hardware
  • WHAT DID YOU HAVE BEFORE YOUR FIRST COMPUTER?Hi, what were you playing before your first computer weather it was a C64 or any other computer? Mine was the Grandstand game FIREFOX F-7, what a gam…

    ... an extension of those Tandy electronics labs kits, but with a ... later, I cobbled together an interface with my ZX81 and wrote ...
    GReW GReW July 2015 Games
  • New version (v0.31) of ZX DiagnosticsHi all,<br><br>Just wanted to let people know that I've released a new version of the Spectrum Diagnostics into the wild.<br><br>These were originall…

    [quote="1024MAK;830450"]Well, it was suggested by me that the chip that drives the LEDs also have a pin header. Then it would be possible for a modified software version to talk to a cheap (
    georgedb georgedb August 2015 Hardware
  • Returning zx spectrum +3 owner - a few questionsHi everyone I'm a returning +3 owner, my spectrum has been dug out of the loft, not used since 1998. My setup was a +3 with a multiface 3 and a e…

    The IBM PC disk drive interface is a variant of the ... Shugart disk drive interface. Since IBM introduced it, ... modifications to the PC drive interface have occurred over time (as ... " drive ready signal. But extra electronics is required... So for the ...
    1024MAK 1024MAK September 2015 Hardware
  • Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …

    ... dk'tronics keyboard, the various interface boards that i was using ... section was reused for an electronics project.

    Because I ... I have the various electronic interface boards that I was using ...
    1024MAK 1024MAK September 2015 Hardware
  • Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …

    ... power via an I/O interface card. Mind, I did change ... dk'tronics keyboard, the various interface boards that i was using ... section was reused for an electronics project.

    Because I ... I have the various electronic interface boards that I was using ...
    1024MAK 1024MAK September 2015 Hardware
<1…18192021222324…34>

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