The HC-12 has a great range for 433MHz but the downside is that the module can only communicate with another HC-12. Also the price for these modules are very similar to ESP8266 and LoRa devices at ...

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The Prime Factor Algorithm (PFA) [1] is a Fast Fourier Transform (FFT) algorithm [2] discovered by Good & Thomas before the more popular Cooley-Tukey algorithm with some interesting properties. The ...

The 2023 European Society of Hypertension (ESH) and 2017 American College of Cardiology/American Heart Association (ACC/AHA) hypertension guidelines both emphasize proper blood pressure (BP) ...