Can an ESP32 detect people without cameras or motion sensors? Discover how Wi-Fi signal disturbances, CSI, and smart DSP enable real-time occupancy and mov ...

For many of us the passing of the floppy disk is unlamented, but there remains a corps of experimenters for whom the classic removable storage format still holds some fascination. The interface for a ...

We’re big fans of the Arduboy here at Hackaday, but we’ll admit its tiny screen isn’t exactly ideal for long gaming sessions. There are some DIY builds of the open source handheld that use a larger ...

A new era of Counter-Strike is here. While CS2's maps, features, and mechanics will be familiar to CS:GO players, the game has been overhauled to its very bones. With new environmental lighting, map ...

Frequency combs are light sources with a spectrum that comprises a series of sharp, equally spaced lines. The frequencies of these lines are known to a very high degree of accuracy, which makes ...

f = frequency = number of waves produced by a source per second, in hertz Hz. T = period = time it takes for one complete vibration or oscillation, in seconds s. A boat at sea bobs up and down as ...

Quartiles are the values that divide a data set into quarters: Put the values in order Divide the list into four equal parts The Quartiles are at the divisions The interquartile range shows the range ...

Audio frequency detection is the process of identifying the pitch or dominant frequency of a sound signal. Three common methods used are Fast Fourier Transform (FFT), AutoCorrelation, and ...

Abstract: In VLSI design, a synchronous binary counter is a fundamental part that is frequently utilized. A synchronous binary counter needs to be quick and able to accommodate a large bit width to be ...

This proposal aims to outline the development of custom firmware for the ESP32, which will enable it to interface with a SAMD51 chipset-based board and serve as the RF module in a Frequency-hopping ...

Abstract: Orthogonal time frequency space (OTFS) modulation is strongly considered as a promising solution for high-mobility communications. In contrast to conventional modulation techniques, wherein ...

July 7, 2026 Leveling the playing field Governor Phil Scott’s popularity may be slipping in his own party, a St. Johnsbury landlord hopes to join his wife in the state legislature and Vermont will get ...