Sinclair ZX80 / ZX81 Forums

Hi, I have made progress on the LAN networking for the CB2 micros. See here http://cb2.qrp.gr/extensions/index.html#3_Local_Area_Network Networking works as designed! I am going to test the rest of the cases but it's really fun to see all the computers in the LAN to communicate to each other! Have fun

I am now testing these: https://www.aliexpress.com/item/32858555968.html These should do the conversion fine I can confirm that this converter is working fine on my setup (numerous homecomputers). This one is technical the same: ligawo-scart-hdmi.jpg I have another (from 2011) converter that I test...

Some extensions are very usefull, i.e. the Dataflash to store programs or the memory extension, the Printer connector, the serial interface. Maybe it is possible to design a pcb with most/all options onboard and the user can decide (via jumperfield?) which option he will finally use / or which part...

Well if there's a pin header on the board, you would be able to stack shields on it like the Arduino. Nice idea! Now there are just pads on the board in different places, but I could bring all the connections to a single "bus". It would require a total re-design of the PCB thought, I am not going t...

Well done! Any plans to integrate those extensions to a single pcb? A CB2 „Pro“? Would you really want to do that? It would increase the cost and although some people may like it, some others may not. I mean If I have a scart TV why should I use composite, since scart is by far superior? Or for exa...

I have added quite a few extensions in the extensions page of the CB2 micro. All of the presented extensions have been tested. More to come
http://cb2.qrp.gr/extensions

Very impressive. I can't find any info on your page, how to connect VGA or HDMI. The KIT output is SCART (PAL/NTSC). If your TV has not got SCART inputs you may use one of these https://www.ebay.com/sch/i.html?_from=R40&_nkw=SCART+TO+HDMI&_sacat=0&rt=nc&LH_BIN=1 They are very cheap. Same for VGA. O...

Here is my collection http://qrp.gr/zx80/ go to the "Software" link Nice site! Even if it-s still a pre-release (me too was absorbed in new work and other stuff) if you like you can add also the "1K Real Chess for ZX80" to it! This is the link to the sw in .o in case: https://sinclairzxworld.com/vi...

McKlaud wrote: ↑

Thu Nov 07, 2019 5:30 pm

Impressive work! I would be interested in bare PCB if possible.

Hi there, I've sent you a PM.

Hi, and excuse me, I know that this forum is mainly for sinclair machines, but I couldn't resist sharing this with you! You want to build your own BASIC color microcomputer within 30 minutes? You can do it with the CB2 micro KIT. It is easy, quick and cheap! What is it? The CB2 micro, is perhaps, th...