Smart Doppler radar powered by your phone
Hi Product Hunt 👋 I’m the founder of PI SpeedLAB. We started building PI-Link because we were frustrated with traditional speed guns — limited processing power, inconsistent readings, and expensive hardware. So we asked: What if we used the smartphone’s CPU instead? By combining Doppler radar hardware with smartphone-level computing power, we built a smarter way to measure baseball velocity. We’d love your feedback — especially from athletes, coaches, and hardware builders. Ask me anything!
PI-Link provides radar speed measurement functionality at a lower cost than traditional standalone radar guns by leveraging existing smartphones, making speed tracking accessible to more training facilities and individual athletes.
PI-Link's smartphone app enables performance tracking and data logging of speed measurements over time, helping athletes and coaches monitor progress, set goals, and identify training effectiveness.
PI-Link is a compact Doppler radar module that connects to a smartphone to instantly display pitch speed, enabling coaches and players to track performance metrics and identify improvement areas without expensive standalone radar guns.
PI-Link integrates with smartphone video capture to overlay speed measurements on recorded throws, allowing athletes to correlate mechanics with velocity and review technique improvements frame-by-frame.