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. The ExtraCore library comes ...

The Uno also has a limited number of pins, making it difficult to work with when the project requires plenty of input and output components. However, these two areas are where the Arduino Mega shines.

Coming to Arduino (Uno), the PWM frequency at Pin 9 is close to 500 Hz ... Finally, I think that the information given here is correct, but if it’s not, feel free to tell me and I’ll amend it. Thanks!

Digital (pwm) pin D3 drives the piezo-buzzer through a PNP transistor ... Sadly, I got such a hampered multifunction shield, but a slice of thin film helped me to clear that issue. This simple Arduino ...

Wyatt]’s CPUVolt library provides a fast way to measure voltage using no external components, and no I/O pin. It only applies to certain microcontrollers, but he provides example Arduino code ...

It transpires that folk have been busy writing ‘cores’ – the name for code that adapts Arduino code to run on different hardware – for several other bare chips, and some have 20 pins – plenty. Have ...

The Arduino Mega's PWM pins are digital output pins located on D2 to D13 and D44 to D46, coming to a total of 15. While they function as normal digital pins that can switch a component either ...