* Usage example:
<pre>
curl https://led.fixme.ch/
curl https://led.fixme.ch/status
curl https://led.fixme.ch/ctrl -XPOST -d 'do=on'
curl https://led.fixme.ch/ctrl -XPOST -d 'do=off'
curl https://led.fixme.ch/ctrl -XPOST -d 'do=color&r=255&g=0&b=0'
</pre>
= Devices =