• When I use Ethernet, I plug cable, I want to get the state of SPI so that I can judge if I need to getIP() from network. Oppositely, when I unplug the cable, when I invoke code like 'eth.getIP()', system shown that I could connect to the internet, but actually it couldn't.

    So, how do I easily get the collectors states?

    If a borad have both Ethernet and GPRS, how to automatically join network? How to handle the ip method?


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