Measure frequency with camera in Hertz or RPM. Decode blinking LED status of industrial automation equipment. Frequency measurement ranges from 0.25 Hz to 30 Hz or 15 BPM / RPM to 1800 BPM / RPM. The Frequency Meter App use camera to measure frequency: just point camera at blinking object (source of light or rotating mechanism) Use cases: - Decode blinking LED status in Herz units - Measure vinyl rotation in RPM units