lucaong
Configure multiple WiFi SSID
Hi all,
recently for I project I needed to be able to configure several WiFi SSID/PSK on the same device, with different priorities (so that the device would preferably connect to one network, but fallback to another one if the first is not available). I noticed that nerves_network does not currently seem to support that. The problem is that, when setting a new entry, nerves_wpa_supplicant currently removes all entries and force select of the new one.
I ended up implementing my own solution on top of nerves_network, if there’s interest in porting this feature to the main library I can share my code.
First Post!
outlog
well.. do please share - could also make for great blog/medium posts (along with the update thing)..
one thing I wonder is if you do a scan to find available/strongest ssid.. say I have 10+ aps in the known list (or even 100 or 1000).. then a scan for strongest/available aps and then matching against the list of known aps, would make a lot of sense..
anyways just a thought for perfection when/if something like this is hopefully added to nerves_network..
the use case is certainly there.
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lucaong
Here’s a gist: Multiple SSIDs with NervesNetwork · GitHub
I am on the go now, but when I have more time I can work on a pull request to NervesNetwork and WpaSupplicant if there’s interest in it. I would love to hear opinions and comments from the Nerves maintainers.
GregMefford
As an update to this, @tmecklem and I independently started working on this feature without realizing that you had already posted here about it so long ago! 
Thanks for posting that super-helpful gist! We will take a look and see if there’s anything in there we didn’t think about that we can integrate into the main library, if you’re OK with that.
tmecklem
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