@nsfilho don't update to 10.15.04....

@ajb2k3 Hello, I don't know if its related to what is being described here but the connection between my Mac(I finally found a driver that seems to "kind of" work), however the communication is totally unreliable. Indeed I need to unplug the USB-C cable each and every time I want to download a program to the M5-Stack. Then I can do one download and subsequent connections are not possible, unless I unplug and plug again. To me it sounds like a hardware issue. The concept of the hardware in a 5 x 5cm "ready to go" series of modules is great. However it has a long way to go before it becomes a comfortable system to use. I am not sure it will ever be though, as the emphasis is to produce more hardware components to sell whilst neglecting loose ends. Cheers !

@kgobes Yes Visuino is block coding, I thought that what you were after wanting to use UiFlow. Of course the latter can display the dose as well. Cheers !

@world101 said in Silicon labs CP210x driver not working on my Mac with Catalina OS( version 10.15.4):

(i.e. "flip it over") if the driver doesn't seem to detect the device).

(i.e. "flip it over") if the driver doesn't seem to detect the device) <= in my case the Mac doesn't even see the Siliconlabs driver as being present. How do I "direct email you Sir ?

@world101 Hello and thank you so much for your input. This is exactly what I mean, the whole thing is esoterical. Sometimes it works, sometimes it doesn't and one doesn't know why, this drives me crazy. I will be happy to try some of your archived driver files. Actually I am at the point where I'm considering purchasing a cheap Windows lap top and dedicate it as a the development environment. There are several useful software packages which don't run on Mac OS. A double boot with parallels is expensive and gobbles a lot of disk space. There are cheaper alternatives but they only run standard Windows applications. Not wanting to be the Beta tester on that one :-)

@kgobes I suggest that you take a look at the Visuino IDE (http://visuino.com. )The basic version is very reasonably priced(free trial period too) and there is a " PRO" version. The fact that is it not free provides support, you get an interlocutor , you are not given the run around and don't have to rely on forums so much. That's precious and saves a lot of frustration. Also this means that the software is continuously under development and they are prompt to react to issues. The developer makes money on the software, not the hardware modules. That makes a world of difference. Only my opinion anyway. Michael

@ajb2k3 Would using the USB M5 Stack module solve the problem temporarily ? Or this port would not be usable to program the Core ?
Between us, I am very surprised to see that M5Stack doesn't step in to solve an issue many users of their products are experiencing. I never had such issues with Arduino or ESP boards. Frankly if in 2020 one has to fight with prototyping boards in this manner something is wrong in the scope of delivery. Thank you very much for your inout Sir. Michael.

@ajb2k3
Hello Sir, thank you for your reply. With regards to your suggestions :

1. use a USB hub. Yes however a hub is a piece of hardware which needs a driver to function. To date the only driver people are talking about is the one supplied by Silicon Labs, which simply doesn't work with Mac OS Catalina V 10.15.4.I have seen other USB hubs but the drivers run only under Windows-
   2nd) use a different cable, the cable I have been using with my previous Mac and this Mac(before I upgraded to Mac OS 10.15.4) was working just fine.The only thing that changed is the Mac OS version.
2. I am not sure what you are referring to here, isn't it the same as point 1 ?
   4)the driver doesn't even show up in the list of installed drivers( terminal command => ls /dev/tty*) I doubt that writing wiring a capacitor, pull up or pull down resistor, etc.. would help at this stage.

@ajb2k3 Hello again. I am now really stuck. I have been talking to Siliconlabs which, of course, claim that the issue lays in the target hardware. It could very well be, however whats intrigues me is that when I run the => ls /dev/tty* from Terminal the driver does not show up in the list. This after having been " successfully installed" What should I make of that ?
As a go around (and out of frustration) I wanted to install the driver and IDE on an old Windows machine I have laying around. Unfortunately it runs Windows Vista. To upgrade to Windows 10 requires a completely new installation, which I can't do, for I need to keep this machine as is for other applications. I imagine I could buy a USB to UART adapter but this too requires a driver, which might very well not run on Catalina. It looks like lots of people ran into this snag and yet(apparently) nobody has come up with a solution.

@nsfilho don't update to 10.15.04....

@ajb2k3 Hello again, how would I wire that ? Yes indeed lots of people are having loads of problems after installing Catalina. Many application sofwares sotted functioning and companies are very slow updating to this new MacOS. So frustrating