Help for Sense Project

[elisa....@freenet.de]

Hi all, 

I am currently working on a University project that deals with the five different senses seeing, hearing, touching, tasting and smelling. 

Touching: for this sense I am working with an Arduino uno that is coded and is connected with a paperclip and a pencil drawing. With some help of the Instructable Website I was able to set everything up. However, the LED light won't lite up even though the Arduino already reacts with the touch sense. I don't know if it's a coding problem or the set up. Here is the link I followed: http://www.instructables.com/id/Turn-a-pencil-drawing-into-a-capacitive-sensor-for/

Smelling: This one is a bit more tricky. Again I followed the Instructables Website with this link: http://www.instructables.com/id/Smell-of-Success/

Because I have absolutely no idea about Arduino coding or Arduino's in general I am asking for some expert help. Other than in the link, I want to set up the Arduino in a way that only a button on a Website has to be pushed and smell is released through the air freshener. I managed to set everything up but am stuck with the coding now. 

I would really really appreciate someones help with those two things. I will be around next Monday during the Arduino meeting and hope to find someone that might has a solution for me. 

Thanks 

Elisa