AndyInTheCloud

Most welcome. The original Cybermaster ISO is on InternetArchive

Ok I did find an old Win7 Pentium laptop ... It didn't run Cybermaster (grrh) - but it did run and connect to the brick via BricxCC - using... the very same USB2Serial adapter above! So .... 1/ the cable, tower and brick work (confirmed via IBM PS/2 - alas 486 so does not run Cybermaster software, but slowly runs BricxCC) 2/ the USB2Serial adapter works (confirmed via Win7 machine) with the same cable, tower and brick above (alas no Cybermaster support) 3/ the USB2Serial adapter (s) seem not to work on Mac (in my case Mac Book Pro M4) - at all - even with a fresh build of ngc. I am putting things aside for now - maybe one day I'll find a small retro Pentiun PC with a real serial and have ago again! Hope all this helps someone avoid wasting time at least. :-)

Yeah I just compiled nqc on my mac native and its borking opening the port even. But yes its good to know the Lego stuff works - thats a positive! :-) Alas I don't have other computers.

My hopes got lifted when I found this https://www.amazon.co.uk/dp/B00QUZY4UG?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1 - with a feedback comment showing a scope displaying 12v! Alas nada again for me. Sorry folks. I just got my Mac Book Pro back after some damange and kinda reluctant to go probing connected devices for risk of shorts. Pretty frustrating. If those that have working adapters can share links/or make/models that might help - but for now I'll send these two back.

I just did a quick test (on an older mac - as alas my new mac took some water damage recently!) - also sad to say the adapter i linked above - is also not working. I need to break off now -but will be back when I have more time to test the voltages. And will also try to eliminate the user of DosBox - at least to do a basic connection test from the Mac itself. Thanks and back soon!

Thanks for getting back to me - appreciated! Yeah the other one I was using was not working - I think I can try the second one and return it via Amazon if not. Will keep everyone posted - it would be good to get this thread populated with working vs non-working brands / chipsets. Just also busy repairing my 9v cables from the set! This is a great video btw -

Ok with an actual physical serial port on my IBM PS/2 57SX (486) running Windows 95, IE4, SHFolder and Bricx - it connects! This is with the same serial cable (original) I used with the USB2Serial adapter above on my Mac. Alas my IBM cannot run the Cybermaster software as its to slow (ironic). But this at least confirms in my case it was/is the USB2Serial adapter. I am currently consider this cable - as it claims to be a real RS232 adapter and outputs the correct voltages - https://www.amazon.co.uk/gp/product/B07Y33RHB2/ref=ox_sc_act_title_1?smid=AFEETNPD33C0Z&th=1 - thoughts?

I am new to the forum - but found this out of a desire to do exactly what Chris is wanting to do. I am also on a Mac, using a USBToSerial cable (https://www.amazon.com/dp/B07589ZF9X?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1&th=1) and using DosBox-X to run Windows 95. With both the original Mindstorms software and Bricx I get both the tower and mobile unit flashing - but both software claiming the mobile unit is not talking back to the tower (or rather brick not found in the Bircx case). I have an IBM PS/2 Model 57SX (486) with an physical serial port running Windows 95 - I am going to try Bricx on tomorrow - will report back. I am really hoping my hardware is not broken - especially the mobile unit...