Ok. am from university of ghana. doing a jammer as a final year project, i call it an intelligent gsm signal neutralizer , jammers are not illegal here by law plus a lot of car accidents are as a result of cell phone use by driver . i checked out ladyada's project on wave bubble, and i wanna do the same thing but due to the fact that unscrupulous persons can use this device for evil, i decided to inculcate a finger print authentication system so that the right people will only have access to the device. i was thinking on the micro-controller to use and the type of finger print module. i will appreciate any suggestion. thankx.. open source for life.