Introduction - If you have any usage issues, please Google them yourself
SCM automatic range switching frequency meter and storage oscilloscope design, by the experiments, satisfactory results can be achieved between the 1Hz ~ 50MHz frequency measurement, also showed the signal cycle, 4-speed range (accuracy), to achieve 1Hz ~ 15KHz signal waveform between the real-time showed that sampling rate of 120KHz, memory depth 128B, can encode any IR emitter pattern to break.