Ondrej Wisniewski

Thanks for your answer. I had a look in `serial.py` of the latest release 2.3.7 and found that `class Serial()` has no parameter `read_timeout`. So I guess it is not...

Do you know where the default timeout is defined? I checked the source code but couldn't find it.

After some more digging, eventually I found the code which is responsible for the timeout. It is in file `serial.py` function `_uart_read()` and it is determined by this loop: ```...

I did some more testing and found that when reading the response I always get first a single byte 0x00 and after that the actual response frame. The single byte...

I have a regular RS485 bus with 120 Ohm termination. The bus itself works fine. When using HW direction control I don't get any errors.

I use only reading/writing holding registers, no coils. Anyway I found that I have some issue with the ground reference of my circuitry. With a proper reference I always get...

Yes, I will test this the next days and report back.

I have tested release 2.3.5 now with MP 1.20.0 but I still see the same issue. I get CRC error. This is the code I use: ``` from machine import...

I agree, also my problem seems to be a hardware issue. There is no pullup on the RO line here and, although I haven't tried to solder one, I am...

Hi, timers have been on my TODO list since the beginning of the project. However I don't really have any use for them anymore. I am controlling my relays from...