Hi
I have a requirement to communicate between a slave device and a master where the distance between them is approximately 3km. I don't need high speed comms, 10-20kbaud is sufficient. Unfortunately I don't have the luxury of being able to use repeaters, fibre optics or wireless. If RS422 was spec'd beyond 1.2km then that would be ideal.
It seems that CAN will work up to 6km at bit rates of 10kbaud but I'd rather not have the complexity required to implement CAN especially as I only need point-to-point comms. I was thinking of using CAN transceivers & connecting the Rx/Tx pins to UARTs at either end.
Does anyone have any experience of such an application or have any suggestions ?
Thanks Dave