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Wow, @Mk.558 thanks a lot for so much effort! Did you get to see other computers in the network? Because that’s mostly my issue…

Yeah… I’m testing port B with LEDs, which I can light with the HyperTalk tool. In port A I don’t have anything connected, but I know it works from C as I can hear the relays.

This 7.1.1 Pro System does not include the network control panel, but it brings that PowerTalk thing.

Here are the libraries... just in case. I use Code Warrior. The sample to get values works, and I modified it to set values.

Setting port A with the included function works fine (I can hear the relays) but I don't manage to set port B... I wonder why they only gave a function to set port A in the library... Using the hypercard tool all works fine.

Actually I meant "C language", sorry

Has anyone managed to use C to set port values? Port A works... I can set values, but I need to set values in port B, configured as output. The library strangely only has function ADBIOSetPortA but not an ADBIOSetPortB. I tried to copy the function for port A and make the equivalent for B, but...

Appletalk was enabled. I don't think it's a problem with the port... I'm more inclined to something missing in this particular version of the System.

I used this one for the BlueSCSI V1 https://github.com/Stephen-Arsenault/OverEasy No idea if it would physically fit in a ZuluSCSI

I have a PowerBook 145B where I installed 7.1.1 Pro... This version includes "PowerTalk", which I never used and I typically disable. In this Mac I can't get AppleTalk to work, I can't see anything in the LocalTalk network. By default I didn't have any "Network" item in the control panel, so I...

There's been some discussion about this... the BlueSCSI (at least V1) was known to have funky interactions with some SD Card controllers, and this also was depending on the particular clone of the STM32 that the bluePill was using. In particular Sandisk was identified as tricky.

I'm building a kind-of home-automation thing for old Macs, so old macOS is required.

Thanks. Please note that I want to do something for System 7

Thanks @Crutch and @cheesestraws I'll look calmly to the doc and available examples, and maybe come back with specific questions (this can take weeks, tough, as I have little spare time myself for this)

That may help to start by something!

Yes, it may be interesting. Right now I'm considering the option using process-to-process communication (you saw the other post :) ) so Serial communication is more a last option in case I can't figure out how to do it using LocalTalk connection.

Indeed I checked that already and I didn't find any, but maybe I didn't look in the right place...

Hello, for a project I want to send short messages from an app to another in a different Mac (both running System 7). I was pointed to the Process-to-Process Communication Toolbox documentation, but I'm not clever enough to build a working program in C using the code snippets in Pascal. Is...

I never used HyperCard, but it may be an option... Thanks for the hint.

Hello, this is an old post, but I wonder if you managed to build your application, as I'm seeking for something similar