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+--- Thread: KC868-A4 USB not detected by computer (/showthread.php?tid=5809)
KC868-A4 USB not detected by computer - BogdanBBB - 05-27-2024
Hi,
Brand new board, I plug it in > the computer doesn't "see" it. What I've tried so far:
- different power sources
- different USB-C data cables
- reinstalled USB drivers
- 3 different computers (all running different versions of macos)
All of the above tested with a working A8 board that I have in use, so it's definitely not the cable/power adapter/drivers.
Another thing that is strange: as soon as I power it up 3 of the four relays engage and stay ON that until I power it off.
Please help. I just want to install Tasmota on it.
Thank you!
Nevermind... I tried another random cable and it finally worked! For others who might be in the same situation: I used a USB-A to USB-C cable with a USB-C dongle to plug into the macbook.
RE: KC868-A4 USB not detected by computer - admin - 05-27-2024
ok, suggest use USB-C cable connect to computer's USB port directly.
RE: KC868-A4 USB not detected by computer - david.auld.99@gmail.com - 03-27-2025
(05-27-2024, 11:41 PM)admin Wrote: ok, suggest use USB-C cable connect to computer's USB port directly.
I had the exact problem on KC868-A6 using MacBook Air with M3 chip. Tried multiple USB-C cables unsuccessfully. The only thing which would work is an old USB-C to USB-A cable connected to a USB-A to USB-C adapter, then plugged into the Mac USB-C port. Using the Mac to other USB-Serial boards with CH34x chips and the same USB-3 to USB-3 cables did not have a problem. Its only an issue with connection to the KC868-A6 CH340C serial circuit.
RE: KC868-A4 USB not detected by computer - admin - 03-27-2025
try to install this USB driver for MAC: https://www.wch-ic.com/downloads/CH341SER_EXE.html