This noise generator has an adjustable bandwidth and a consistent amplitude no matter what bandwidth is selected. When working on a recent Design Idea for an adjustable filter, I wanted to use an ...

SSD1306 driver is Arduino style C/C++ library with unicode support. The library can be compiled for plain Linux (for example, raspberry spi), or you can use it with plain avr-gcc compiler without ...

These displays use I2C or SPI to communicate, 2 to 5 pins are required to interface. Adafruit invests time and resources providing this open source code, please support Adafruit and open-source ...

Radar, this project from [Mateusz Juszczyk] isn’t actually using radar. But thanks to the round LCD this desktop gadget does ...

There are plenty of radios you can buy that pick up MW and SW bands if that’s what you’re into. Or, you can follow [mircemk]’s example, and whip one up yourself instead. The build employs an ESP32 as ...

The ESP32 is the go-to microcontroller for DIY projects, smart home sensors, and other lightweight projects, but it’s not the only game in town. If energy efficiency is high on your list of priorities ...

Have you ever been in a situation, whether in a conference room, a private office, or a room in your own home, where you can't tell if someone is inside (or if the light is on) from the outside ...