I’m looking for some advice/ideas. I’m wanting to build a product that will have a chainable array of sensor nodes. I don’t know in advance how many nodes will be needed and I’d like to avoid having to configure addresses for each node. I can probably get by with a max of a dozen or so sensors in a chain. However, putting 128 in a single chain would be really cool. The nodes could be separated by inches or feet (probably no more than 2’-3’). Also, each “node” will actually be an array of sensors (temperature, humidity, light, etc.). Also, each node will need to be very small and powered via the cabling.
So, my question is what’s the best way to do this? Is there already an established standard for this type of sensor chaining? Of course, my mind went directly to DaisyLink when I first started thinking of this… But, I’m not sure the state of that technology and it was never really used outside of Gadgeteer that I’m aware of. Due to the distances, I think I probably need something based on RS-485 or CAN. So, before I start reinventing the wheel is anyone aware of existing technology/patterns that I can build upon and possibly get more re-use from?