p82B96 Questions

Projects Networking, Protocols, and Devices
1

i am trying to connect maybe 40 arduino together in long distance ( 200 m )
i havé p82B96
1 - what is the limit number of connect arduino i can use it
2- have someone the schema of connection between arduino with p82B96
3- how i can calculate the capacitance and what is the importance of this mesure (capacitance)
thanks

2

Does it needs to be I2C? Why you don't use something like CanBus or even RF?

Btw, here some good explanation about I2c bus capacitance: http://www.edn.com/design/analog/4371297/Design-calculations-for-robust-I2C-communications

3

that is mean i can use this

807×386 29.1 KB

for 50 arduino for exemple ? ?
i can find a problem with this picture ??