Use RS485 to update arduino mega

Projects General Guidance
1

Hi,

I've an arduino mega with MAX485 connected to an Linux iot gateway

I was wondering if it is possible to update the arduino code, upload new sketch or some sort of any edits, through rs485
And how to do it

Thanks

2

The RS-485 port is connected to serial pins? In that case, no possibility of uploading a sketch. The onboard 16U2 bridge processor manages that. But you can develop some kind of serial utility that can alter parameters and store them in EEPROM, via serial. I know because I have that on a lot of my projects.