Originally the microcontroller for this project was a Teensy 3.1 which was picked due to its high speed, however once hackaday announced their 1k challenge we figured maybe we can make this laser project do something interesting with only 1k. At the time the boot-loader memory was still being debated on the forms and in a such a space constrained device it is nice to have full hardware debugging where memory/registers can be viewed and instructions can be stepped through. So the Teensy was out and the only microcontroller we had that met these requirements is a TI MSP430FR133 Launchpad kit. As per rules you can use TI Studio on this device for free and get full hardware programming and debugging. This was also a great opportunity/excuse to explore this architecture and learn something about compiler optimization.