upload sketch to arduino over RS-485

Dear arduino lovers,

Is it possible to upload sketchs over Max485 to an arduino board?

Never tried, in theory it should be possible, might need a dedicated bootloader.

What is the problem you try to solve?

robtillaart:
Never tried, in theory it should be possible, might need a dedicated bootloader.

What is the problem you try to solve?

I am working on a project based on arduino boards that are networked with RS-485 bus, the rs485 interface is rg45. that carry power and data through a cat5 cable.
in the future accessing to the each board physically is so difficult, so i want to add a feature to upload sketchs from the master board to the slave boards over cat5 and Max485.
I dont know is it possible or not?
I saw that in ft232 there is a reset pin, is there any similar function in max485 or i need to press reset button on each boards?