Image Map Image Map
Tab Content
  • Witchy's Avatar
    May 5th, 2019, 05:54 AM
    Witchy replied to a thread CIT-101 terminal in DEC
    No problem! It's excellent to see them go to a good home :D
    48 replies | 3904 view(s)
  • Witchy's Avatar
    May 3rd, 2019, 01:36 PM
    Witchy replied to a thread CIT-101 terminal in DEC
    It's nice to see everything's hanging together nicely!
    48 replies | 3904 view(s)
  • Witchy's Avatar
    May 3rd, 2019, 01:34 PM
    My hookup, er, hooks arrived so I have an old-skool means of connecting up the arduino to try and sample what's going on. Happily I was chatting to...
    62 replies | 2666 view(s)
  • Witchy's Avatar
    May 2nd, 2019, 10:35 PM
    Unfortunately you do, kind of. That big stack o'wires running up the centre of the schematic is the Emulator that controls all the I/O: The...
    62 replies | 2666 view(s)
  • Witchy's Avatar
    May 2nd, 2019, 02:03 PM
    It's an NEC V20 so what's that, 8088? The machine actually runs a rewritten Unix V6 from ROM and the more I've learnt about it the more I've realised...
    62 replies | 2666 view(s)
  • Witchy's Avatar
    May 1st, 2019, 09:56 AM
    I do have a complete ROM dump of my machine but the trouble is the keyboard, RS232 et al are controlled by an external board called the Minerva...
    62 replies | 2666 view(s)
  • Witchy's Avatar
    April 30th, 2019, 03:49 PM
    If there's one thing I love about this hobby it's that things are always way more complicated than I think, I'm grateful to you and Chuck and the...
    62 replies | 2666 view(s)
  • Witchy's Avatar
    April 30th, 2019, 10:06 AM
    I don't think it's as complicated as that, but yes, hence my thought of just wiring in SK6 and SK7 to 24 ports of the Arduino MEGA256 I bought for...
    62 replies | 2666 view(s)
  • Witchy's Avatar
    April 28th, 2019, 03:13 PM
    It gets better, I suddenly realised I hadn't accounted for modifier keys so I added left shift and right shift to my little protoboard keyboard to...
    62 replies | 2666 view(s)
  • Witchy's Avatar
    April 27th, 2019, 04:03 PM
    Sigh, so much for me thinking I could ignore Z5. Writing out the lookup table I realised 6 bytes isn't enough for all the keys so I now need to...
    62 replies | 2666 view(s)
  • Witchy's Avatar
    April 27th, 2019, 08:42 AM
    The 4051s were just for me to play with on a breadboard, I'd bought them before I found a video explaining how the chip works. Ordered some extra...
    62 replies | 2666 view(s)
  • Witchy's Avatar
    April 26th, 2019, 02:01 PM
    Unexpected package in the mail today, I'd forgotten I'd ordered a couple of 4051s to play with. If only I'd ordered a pair of LS688s and an LS240 at...
    62 replies | 2666 view(s)
  • Witchy's Avatar
    April 25th, 2019, 03:10 PM
    Had some fun tonight. I discovered some anomalies in my original decoding of the keyboard so the evening has been full of colour coded spreadsheets....
    62 replies | 2666 view(s)
  • Witchy's Avatar
    April 25th, 2019, 04:58 AM
    I think you're right with the count of 3 for a debounce check, it initlally confused me as to which chip was scanned first but 3 scans can clearly be...
    62 replies | 2666 view(s)
  • Witchy's Avatar
    April 24th, 2019, 02:19 PM
    I did type pretty much this out since the key being pressed is the only thing that can make Z3, one of Z4/5 and Z6 all active at the same time, I've...
    62 replies | 2666 view(s)
  • Witchy's Avatar
    April 24th, 2019, 11:40 AM
    Easter weekend all done and dusted, I hope yours was similarly fine weather wise and that you didn't damage limbs like I did! I can see why a...
    62 replies | 2666 view(s)
  • Witchy's Avatar
    April 20th, 2019, 02:01 AM
    I'm getting to like the idea of a pair of Nanos with an extra small board for an LS244, I have a few spares of both. This machine is never going to...
    62 replies | 2666 view(s)
No More Results
About Witchy

Basic Information

About Witchy
Biography:
Exiled northerner, owner of the Binary Dinosaurs Computer Museum
Location:
Flatlands, UK

Signature


www.binarydinosaurs.co.uk - UK home computer history
Where RIFA capacitors come to die
facebook.com/binarydinosaurs

Statistics


Total Posts
Total Posts
276
Posts Per Day
0.21
General Information
Last Activity
May 16th, 2019 11:17 AM
Join Date
October 10th, 2015
Referrals
0
Home Page
http://www.binarydinosaurs.co.uk