Following on from the RS485 on an Raspbery Pi post, I also picked up a LinkSprite RS485 Arduino board from RoboSavvy (Arduino RS485 schematics).
I plan on trying to get the two to talk to each other, using a short bit of three cores:
- A aka ‘-‘ aka TxD-/RxD- aka inverting pin
- B aka ‘+’ aka TxD+/RxD+ aka non-inverting pin
I plan on trying to set up a Master / Slave relationship with the Raspbery Pi being the master, and the Arduinos the slaves (Full arduinos will be replaced with Shrimps or equiv and a Max481CSA).