Pic To Pic Rs485 Need Help

I Need Help For This Communication.

I want to try to build a master with 1 push button and 18f4550, one battery 12v

And a slave with 18f4550 with 12v battery and one led.

i want to connect master and slave with rs485. When i push the button on master the led in the slave on, when i release the led off.

Who can help me to create a software and hardware connection?

Thank you so much.

I will start with 1 push button and 1 led, then i want to continue with relè and more channel, LCD, menù ecc ecc.

Please help me.

Thank You So much

Scuse me for my bad english.

Grab yourself a couple of RS485 transceivers, such as the MAX485, wire it up to the UART and use your desired programming language / compiler of choice to implement the hardware UART.

Hope this helps get you started.

Wilksey.