RS485 not receiving anything

[victorclaessen]

Ok, thanks for the reply. I ordered mine in March 2022 and did not get around to properly using it until quite recently.

[Yocee]

Ok, thanks for the reply. I ordered mine in March 2022 and did not get around to properly using it until quite recently.

You succeeded?

[victorclaessen]

Yes, see #19.

[aucirc]

I have an A6 and an A16 purchased recently - both seem to have a different chip again for RS-485:  Ruimeng MS2548 / TFDD87A

Have I purchased counterfeit units or is Kincony using this in place of MAX13487 now.  I'm asking as I'm also trying to troubleshoot a (different) RS-485 problem.

A6:



A16:



This is the only datasheet I could find:
https://www.ftelectronic.com/Public/Uplo...d6c997.pdf

[admin]

Because MAX13487 is often out of stock, it was replaced by MS2548, and the actual usage effect is the same.