GitHub

Arduino Library for PCF8574, a 8-port GPIO exander via i2c

or located under the following github pages github.io. Additionally in combination with the technical datasheet of microchip PCF8574-Datasheet. PCF8574_I2C::PCF8574 ...
GitHub

sparkfun/SparkFun_FPC2534_Arduino_Library

The SparkFun Fingerprint Sensor - FPC2534 Pro is a small, highly capable and robust fingerprint sensor that can easily be integrated into virtually any application. Based off the AllKey Biometric ...
SlashGear

Arduino's Wire Library: What It Is & How It Works

The Arduino platform offers a variety of affordable toys used by DIY enthusiasts for simple electronics projects. It is known for being easy to learn and is built on a variant of the C++ programming ...
Hackaday

What’s New, ESP-32? Testing The Arduino Library

In case you missed it, the big news is that a minimal Arduino core is up and working on the ESP32. There’s still lots left to do, but the core functionality — GPIO, UART, SPI, I2C, and WiFi — are all ...
Hackaday

Hackaday Prize Entry: Magic Bit-Of-Wire Motion Detector Library For Arduino

We’re still not sure exactly how [connornishijima]’s motion detector works, though many readers offered plausible explanations in the comments the last time we covered it. It works well enough, though ...