@granz Did you get my alert?
@Chris Savage  I got yours from the Timex Sinclair thread

I think I found how to enable mentions. Not sure if it works. Here's the first test.

@granz - Did you get notice of this mention?

How about you, @MicroNut ?

Or you, @JKnightandKARR

Please test here to see if regular members can do this.

Quote from: MicroNut on Jan 13, 2026, 11:00 PMGranz, no I didn't see the alert.

I've looked into mods for SMF that can do this, but the few I see don't look like they've been updated in years.

EDIT: Ironically, the manual says they're supported. I need to check on permissions. I will look into this now.

Granz, no I didn't see the alert.

JKKnightandCARR - sadly I lost all my ZX81 FPGA and Cassette source code when the external hard drive I had it on went bad. I do have the ZX-gate source though which is good since it is no longer on the net.

I'm thinking of redoing it. I know the ZX-Gate used a PS2 Keyboard and VGA output. When I used the DE0-Nano I tapped into the video output before the vga conversion and had to use a transistor driver to get the composite output. I now have a DE10-Lite which has a built in VGA and Arduino header with double the space of the Nano so I will do it on that instead. Once that is done it'll be easy to port it over to the Nano

I'll start a thread on the Projects category when I get it going so I won't hijack this thread.

Quote from: Chris Savage on Jan 13, 2026, 10:22 AM

Quote from: JKnightandKARR on Jan 12, 2026, 11:51 PMOrder that with the sockets for the chips! Only an additional $50.... lol kinda $$$$$$ can buy an original for 1/4 cost

Yeah, I did think the $50.00 for extra sockets was a bit much. Of course, the modernized versions don't require an old TV to get video.

Just alittle bit... lol

Quote from: MicroNut on Jan 13, 2026, 03:15 PMThe remake that Granz was mentioning that I had was a DE0-Nano FPGA board with a ZX81 softcore called ZXGate I found on the internet. The "cassette" was an Arduino Due which had a TFT screen and a SD card reader. Sadly I lost the code for the Arduino but I also made a "cassette" with a Propeller 1, SD card reader and a serial 16x2 LCD. I no longer have that code either.

The cassette remake is just reading an SD card and then bit banging pulses based on each bit of each byte. Once the timing is determined and using a 3.3V output you can feed it into the "mic" jack. It wouldn't be too hard to replicate it again and I found that it is more reliable than the actual cassette system.

I also have 2 TS1000s, a US ZX81 and the ZXMore kit (can also do ZX80) that is no longer available.

That'd be VERY handy! I'd like one if one can be recreated.

Quote from: Chris Savage on Jan 13, 2026, 10:25 AM

Quote from: granz on Jan 13, 2026, 06:57 AMA modern remake of the old ZX-81. There are several (one of them is here:

I don't think tagging works on SMF.    That PCB looks like the one JKnightandKARR linked. Mahjongg?

Did you see the files I posted? I think original PCB designs, as well as new designs as you already saw,  for the ZX=81 or Timex Sinclair 1000, seem that the 2 systems, even though technically the same, are somewhat different, at least as far as the RF boxes are concerned.

Thanks Brian, I was pretty sure (>99%) that you had a TS-1000 clone, but I forgot that it was an FPGA system. I also think that I have a DE-0 system somewhere, that I inherited when Peter moved out.

By the way - did you get an email alert from my tagging you, or did you just happen to log in and see the posts?

The remake that Granz was mentioning that I had was a DE0-Nano FPGA board with a ZX81 softcore called ZXGate I found on the internet. The "cassette" was an Arduino Due which had a TFT screen and a SD card reader. Sadly I lost the code for the Arduino but I also made a "cassette" with a Propeller 1, SD card reader and a serial 16x2 LCD. I no longer have that code either.

The cassette remake is just reading an SD card and then bit banging pulses based on each bit of each byte. Once the timing is determined and using a 3.3V output you can feed it into the "mic" jack. It wouldn't be too hard to replicate it again and I found that it is more reliable than the actual cassette system.

I also have 2 TS1000s, a US ZX81 and the ZXMore kit (can also do ZX80) that is no longer available.

Quote from: granz on Jan 13, 2026, 06:57 AMA modern remake of the old ZX-81. There are several (one of them is here:

I don't think tagging works on SMF.    That PCB looks like the one JKnightandKARR linked. Mahjongg?

Quote from: JKnightandKARR on Jan 12, 2026, 11:51 PMOrder that with the sockets for the chips! Only an additional $50.... lol kinda $$$$$$ can buy an original for 1/4 cost

Yeah, I did think the $50.00 for extra sockets was a bit much. Of course, the modernized versions don't require an old TV to get video.

Quote from: Chris Savage on Jan 12, 2026, 04:44 PM

Quote from: granz on Jan 12, 2026, 03:55 PMAlso, related to this: Brian (AKA @MicroNut) has (had?) a ZX-81 remake.

Define: remake?

A modern remake of the old ZX-81. There are several (one of them is here: https://www.hackup.net/2022/01/building-a-new-zx81-computer/.) I don't remember which one Brian had, as that show was many years ago. That is why I tagged Brian, I was hoping that he could pitch in.