Does this help https://github.com/jouellnyc/UART/blob/ ... /README.md ?

I know it's not the same but it's similar and different - and it's micropython.

I basically quickly made a wire a sender and then a receiver via a UART and RS-485

You are correct. I fixed that! I think the problem is because I am not using a null cable. I just bought one and will update once it arrives. Thanks!


A null modem cable was required. I thought the cable I had was that.

To recap:

- Esp32 TX (GPIOs remapped above) to TX of each module ...

You are correct. I fixed that! I think the problem is because I am not using a null cable. I just bought one and will update once it arrives. Thanks!

Howdy,

Hello I have two ESP 32 devices and I have successfully connected them to communicate over UARTs using the standard TTL interface with basic dupont jumpers. :D

I have next taken the same esp32 devices and then instead I have inserted rs422 to TTL adapters and communication continues to ...