I am currently researching the RS485 integration with Arduino. It seems that a module like a MAX485 module has to be programmed into a single Arduino. In essence i would have to have an Arduino built into every sensor correct?
If thats the case lets assume i want 3 sensors. That would equate to 3 slave Arduino's and 3 slave MAX485. Now on the master Arduino side. It would be 1 master Arduino, but how many master MAX485's (1 or 3)? Currently the MAX485 modules are 2 wires so if i purchase the ones available on the market i assume i will be using 3 master MAX485 modules. However if i design my own can I put 6 wires into a single MAX485 module?
If im getting any of this wrong, by all means please let me know.