Thank you everyone for your spontaneous response. Actually I am a newcomer when it comes to programming and microcontroller. The pump I am using is the 2 port pumps M100-S. http://singapore.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=0480188
. It requires an input voltage of 3-4 V and current of 0.26-0.38 A. It has a free flow rate of 0.78 - 1.52 ml/min.
The pressure transducer we can easily find one that can measure 0-14 bars but how am I going to programme the entire system and also the connections. Do I have to use any say amplifiers or rectifiers for my electrical circuit or I can just connect literally from transducer to microcontroller and the microcontroller to pump without any other circuit.
Oh by the way we are using a Li Polymer Battery which is a 3 cell 350mAh 11.1 V battery.