Best posts made by faulty lee

At last, got it working after reading http://superuser.com/questions/756438/openwrt-wpa2-enterprise-radius-config-is-not-applied and https://wiki.openwrt.org/doc/howto/wireless.utilities#hostapd-mini_and_wpad-mini

Basically we need to replace wpad-mini with wpad which have support for 802.1x and EAP. In order to do that, we must first have access to internet via another non EAP wifi AP. Then do this

opkg update
opkg remove wpad-mini
opkg install wpad

Tested with the above configuration and it works, though sacrificing another 0.3MB of space. I'll give it a try to add this into wifisetup.sh

I was looking around for information on the GPIO connected to the RGB LED on the expansion dock, didn't find any, so I tried to traced back using a multimeter. Below is the connection, please correct me if I'm wrong, otherwise at least this should help the next guy looking for it.

1kOhm current limiting resistors are connected to each pin

LED R  - GPIO17
LED G  - GPIO16
LED B  - GPIO15

Set GPIO to 0 to turn on and 1 to turn off. I'm guessing the invert is because most GPIO have better sinking capability than sourcing. I would have expect a slightly different resistor value, especially for Red as each color have different luminosity and to achieve a better "white" when all are turned on.

Below is some code to get started

#Setup export and GPIO direction
echo 17 > /sys/class/gpio/gpiochip0/subsystem/export
echo 16 > /sys/class/gpio/gpiochip0/subsystem/export
echo 15 > /sys/class/gpio/gpiochip0/subsystem/export
echo out > /sys/class/gpio/gpio17/direction
echo out > /sys/class/gpio/gpio16/direction
echo out > /sys/class/gpio/gpio15/direction

#turn off RGB LED
echo 1 > /sys/class/gpio/gpio17/value
echo 1 > /sys/class/gpio/gpio16/value
echo 1 > /sys/class/gpio/gpio15/value

#turn on R
echo 0 > /sys/class/gpio/gpio17/value
#turn on G
echo 0 > /sys/class/gpio/gpio16/value
#turn on B
echo 0 > /sys/class/gpio/gpio15/value

The code for expled used in the help desk article is here https://github.com/OnionIoT/fast-gpio/blob/master/scripts/expled.sh in case someone is looking.