Growl and Arduino

[Libbie Rose Hughes]

Hiya,

I'm working on project which I have and Arduino with a Lan Shield and LCD display which displays MQTT messages from a server and an other Arduino which is connected to my doorbell. I want to expand on this by having my growl notifications from my mac display on the LCD as well.

I know that growl can run shell scripts, but i can't figure out how to get it to forward the notifications to the Arduino, have any of you got any idea how i can do this or if there is a libraries that i can use?

Thanks

Libbie

x

[Boncester]

Hi Libbie,

Know this is not a recent post, so apologies for raising the dead, but I'm thinking something similar, I've a Arduino and a Arduino LAN shield and want to set up a literal traffic light to show good, problematic and bad Growl notifications.

Did you get anywhere with this? I'm right at the beginning on this, so don't even know yet if Growl even uses standard HTTP packets (if it does the LAN shield should work fine, once programmed).

Ta,

Bonce

[Daniel Siemer]

Hello Bonce,

Growl’s network protocol is called GNTP and is not based on HTTP.  While parsing it would be doable on an Arduino, a simpler solution might be to use our script action (which does require 10.8+ to run) to parse which notifications activate the traffic light, and send a much simpler command to the Arduino over the network to turn on one of the lights.

For more information on GNTP, see here: http://growl.info/documentation/developer/gntp.php, and feel free to ask questions in our IRC channel, #growl on irc.freenode.net, if you run into anything you aren’t sure about with either GNTP or the script task (although we are often idle in the channel, if you stick around, you are likely to get an answer at some point).

Daniel Siemer

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