Arduino Yun for shade control

I want to control my SomfyRTS shades in a better way than with zwave switches.

The idea is to use the Arduino board with Wifi soldered to a Telis 4 rts.

Then to use html command to trigger 5 different programs.

They look like this (e.g. Program 1):

3.3 V DC signal, all sequential
Channel 1 100 ms ON, 100 ms OFF, 100 ms ON, 100 ms OFF, 100 ms ON, 100 ms OFF
Channel 2 100 ms ON, 100 ms OFF
Channel 1 100 ms ON, 100 ms OFF, 100 ms ON, 100 ms OFF

Other programm will use channel 1-4 with similar patterns.
Important is the exact time 100 ms to several seconds. No delays like Vera…

Is this possible? How difficult is it do this?