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Topic: cable connection between 2 Arduino long distance (Read 93 times) previous topic - next topic

emailarmin

Hello everybody,

I just learn to work with Arduino tu update controls in my home. For dataexchange I want to connect local controlers like heating system with the central controler that will be supposed to connect to internet.
I tested connection between 2 Arduino by I2C, it seems limited at about 20m.
What type of wire communication to use for longer distances?

Thanks for your help

Armin

srnet

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noiasca

#2
Nov 24, 2017, 07:51 pm Last Edit: Nov 24, 2017, 08:24 pm by noiasca
define:"longer"!

LAN/WLAN ... I guess your "controller" needs TCP/IP anyway if you want to connect to the internet
CAN Bus
RS485 ... as mentioned





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