Automaic home make freshener

I want to show how to make a homemade automatic air freshener. It is based on a PIC 12F629 microchip company that controls the duty cycle of two fans.



The fans circulate air to evaporate a liquid aromatic substance located in a jar.

PCB:

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Circuit:



Part list:

LM 7805
PIC 12F629
2 diodes
capacitor 1000 uF 16V
2 CPUs fans
others

Files to program the PIC:
http://www.mediafire.com/?z6h4d9fimze9hz6

Thanks