RS485 communication Circuit

[nayakajit87]

Dear all,

I am looking for working RS485 communication circuit that can be interface with PIC16F886/PIC16F1938
Currently I have code working till modbus tester send request from PC to PIC using USB to TTL logic.

I am looking for working circuit for 5v where TX and Rx line just tapped with DE enable to make it work.

 

[KlausST]

Hi,

What exactly is the problem?
There are ready to buy one IC solutions.
Maybe just a power supply capacitor and maybe a termination resistor is needed.
Every of this IC comes with a datasheet.... with all description and schematics you need.

There are many ICs from many manufacturers. Don´t ask which one is the best because it depends on your requirements and your personal taste.

Klaus