I'm working on a new prototype with smaller off the shelf components. This version will include a very tiny 10x16mm OLED display, RFDuino BLE 4.0, pololu 3.3v step-up voltage regulator, and optics components from anchor optics. Each component is much smaller than the first version. I'm attempting to reduce the size and weight of the optics with this version also. Please message me if anyone has ideas for improving the projection method.