Compared to the Arduino Uno of old, modern microcontrollers are absolutely tiny — especially for the amount of processing ...

There have been many development boards recently built around the ESP32-S3. Most development boards come with a display, some also include cameras and buttons, and a few have speakers and microphones.

This is a library for the MCP23008/17 I2C and MCP23S08/17 SPI Port Expanders. Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by ...

This document is aimed at the Arduino developers, radio experimenters, hobbyists and anyone interested in building a receiver based on the Si473X IC family from Silicon Labs. This project is about an ...

It was an interface that launched a thousand hacks. Near trivial to program, enough I/O lines for useful work, and sufficiently fast for a multitude of applications: homebrew logic analyzers, chip ...