I am working on an low cost e-voting system. I want to use a finger print reader, proximity sensor, 5 inch display, arcade joystick, a push button, a ticket printer and a bar code scanner module. I plan to capture my biometric data and store them on mySQL. I am not planning to use a full fledge computer due to cost implication. Can someone advise if I should use a raspberry Pi or a beagle board or any other ? I am at the point of order