When it comes to UART to RS485 communication, what is the difference between the 'MAX485' and the 'HW-0519' module?
I did a bit of research and found others who use this particular component for their RS485 communication purposes. It is difficult to get clear info because the device goes by different names and the most commonly used name is MAX485 (name of the IC), which is used interchangeably for both the components shown in the question.
It seems the more I search for the 'HW-0519', the more names I find for it. So far, it goes by the name 'MAX485', 'XY-017', and 'XY-K485'. A clear advantage for this 'HW-0519' is that it does not require D or R enabling, just straightforward Tx and Rx. It also has LEDs to show the data transfers. I found a project that used this module here. I am unsure about their pin connections from the ESP-32 though. It looks like they've connected the ESP-32's TX2 to the HW-0519's Tx, and the RX2 to the Rx. I thought it should be the other way around.