FPGA-based instrumentation provides picosecond-level precision for detecting single photons with zero dead time.The hardware has the ability to timestamp every photon event with a 10 ps resolution, allowing measurement of extremely short time intervals.The FPGA-based setup is reconfigurable and can track up to four events in parallel without missing any.The flexibility and speed of FPGA make it an all-in-one toolkit for various applications in photon measurements.