This is interesting. May I ask how do you do it from software poinr of view? As for CPU and memory for sure it is possible, but I'm more interested about how do

This is interesting. May I ask how do you do it from software poinr of view? As for CPU and memory for sure it is possible, but I'm more interested about how do you connect into exechange/broker? Contiki, SLIP, PPP, or maybe some ethernet expansion ?