The Fourier Analysis –The Fast Fourier Transform (FFT) Method
https://www.electronics-lab.com/article/the-fourier-analysis-the-fast-fourier-transform-fft-method/
Introduction The Fourier Transform is a mathematical technique that transforms a time-domain signal into its frequency-domain representation. In other words, it decomposes a signal into its frequency components. The result is called the spectrum of the signal. Historically, the Fourier analysis concept developed slowly, from the Fourier series method 200 years ago up to the Discrete Fourier Transform (DFT) computing method today. Essentially, the Fourier decomposition was […]
Network Clock using ESP8266 and OLED display
https://www.electronics-lab.com/network-clock-using-esp8266-oled-display/
There are several situations where using an RTC could adversely affect your project by increasing cost, size, time accuracy or IO requirements. To prevent this, especially in ESP/WiFi-based or other clock-reliant projects, makers usually turn to obtain time information from NTP servers. I recently came across a project by BitsandBlobs which used standalone NTP Servers […]
Rubidium Disciplined Atomic Clock
https://www.electronics-lab.com/rubidium-disciplined-atomic-clock/
Cameron Meredith build a real-time-clock module controlled by a rubidium frequency standard, and since it also includes a GPS clock he can track local time dilation effects by comparing the two. An I2C multiplexer board allows for more than one RTC module (Since these have a hard coded I2C address you can normally only use […]
IP Time Clock using NTP protocol
https://www.electronics-lab.com/ip-time-clock-using-ntp-protocol/
by msuzuki777 @ www.instructables.com So this Lazy Old Geek (LOG) has a couple of clocks in my bedroom. One of them loses time when the power is lost. The other is semi smart and automatically adjusts for Daylight Savings Time. Unfortunately, it does this using the old standard so I have to re-set the time four […]