Anton Sazonov developed a barometric pressure velocity calculation feature for the SunDevilRocketry/mod repository, focusing on enhancing telemetry accuracy for flight safety and control. He implemented a function in C that converts barometric pressure readings to Pascals, derives altitude using an atmospheric model, and computes velocity from altitude changes over time. Anton also updated the IMU-based velocity calculation to use the powf function, improving numerical stability and performance. His work leveraged embedded systems and sensor data processing skills to enable more reliable trajectory estimation, addressing the need for precise, data-driven velocity measurements in aerospace applications within a short, focused development period.