The FFT (Fast Fourier Transform) first appeared when microprocessors entered commercial design in the 1970s. Today almost every oscilloscope from high-priced laboratory models to the lowest-priced hobby models offer FFT analysis. The FFT is a powerful tool, but using it effectively requires some study. I'll show you how to set up and use the FFT effectively. We’ll skip the technical description of the FFT, ...

It has been about one year since the announcement of ESP32 SoC and the beginning of its beta testing for some developers. Last Month we covered the release of ESP-WROOM-32 module datasheet,  which promised that “New SDK features, tutorials and example applications will be released over the next few months.”. The ESP-32 datasheet was released at the end of August. So let us discover the details of ESP-32 SoC ...