MAX485 RS485 485 to TTL Serial Converter Module Convert UART for Arduino TechMakers

RS485 to TTL Module (MAX485) is for long range, high data rate error prone differential communication. Digital communications networks implementing the EIA-485 standard can be used effectively over long distances and in electrically noisy environments beside that, it allowed multiple receivers tobe connected to such a network in a linear, multi-drop configuration. It commanly implement in difference instrument, industrial environments and similar applications.

Reference:

MAX485 chip speccification

https://datasheets.maximintegrated.com/en/ds/MAX1487-MAX491.pdf

Arduino to RS485 module example

https://create.arduino.cc/projecthub/maurizfa-13216008-arthur-jogy-13216037-agha-maretha-13216095/modbus-rs-485-using-arduino-c055b5