By SkyWodd Overview The "PCF8574" chip is an I2C I/O expander that free some of your Arduino pins by controlling them over I2C. The PCF8574 is directly powered by the 5v rail of your arduino and let ...

Enter the ExtraCore library for Arduino, a software library that turns two or more Arduinos into a multi-core microcontroller with more pins than you’ll ever need.

If you've got an Arduino of any variety, you might have noticed some of the pins on the board have a tilde mark or PWM printed next to them. What is PWM?

High level type-safe handling of Arduino pins. Contribute to csosborn/SafetyPin development by creating an account on GitHub.

Arduino-compatible ATtinys with more pins Having had such quick success making a microcontroller project using an 8pin ATtiny85 and programming it with Arduino, I though I would try a more elaborate ...

This go-to guide for learning things about Arduino is made for beginners and written by someone who used to be a beginner!

If you've got an Arduino of any variety, you might have noticed some of the pins on the board have a tilde mark or PWM printed next to them. What is PWM?

Seven-segment displays are designed for displaying numeric values. Learn how to use 7-Segment Display with Arduino. In this article, you can find the Complete Arduino code and Circuit Diagram along ...