I2C is very short range, it’s meant for connecting parts on the same board. You want something like RS-485. The Modbus protocol, which runs over RS-485 would be perfect for this.
For the love of God, I just can’t understand how “needs Internet” became synonymous with “smart” in the appliances market slang. I know it’s what advertisers do, but this one is abysmal.
Removed by mod
What you have just described could be ZigBee and/or MQTT.
And Z-wave
No need for radio even. MQTT - yes.
I2C is very short range, it’s meant for connecting parts on the same board. You want something like RS-485. The Modbus protocol, which runs over RS-485 would be perfect for this.
Yes, from quick googling seems exactly what I want.
For the love of God, I just can’t understand how “needs Internet” became synonymous with “smart” in the appliances market slang. I know it’s what advertisers do, but this one is abysmal.
Well, calling a machine “smart” doesn’t seem smart to me in general