The aim of the project is to build Electronic speed control (ESC) booster pack for the MSP430 LaunchPad named as BLDC Booster. It allows for sensored or sensorless control of a brushless DC motor. Project scheme for sensorless commutation is using BEMF integration and flux thresholding based on the theory of operation for TI’s InstaSpin technology.
If you are interested to build this booster pack, here are the project’s schematic and source code. BLDC Booster is open source hardware & firmware under Creative Commons Attribution Share Alike license designed by Luke.