The Arduino IDE uses #defines to define things like I/O pin numbers, modes, and other things. You can also create your own headers and #defines. Headers can be included in other files - in other ...

If you’ve ever tried to use a standard prototype board to mount on an Arduino, you’ll know what kind of person you are. When you notice the pins aren’t on 0.1 inch centers, you might think ...

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.

Often, when it comes to your Arduino project,you never have enough input/output (I/O) pins on your Arduino Microcontroller. The addition of your favorite LCD display, a bunch of blinkers, beepers and ...

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 ...

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 ...

Bluetooth LE is v5.0 and up to 2Mbit/s – “it has the option to scan and advertise simultaneously, as well as supporting multiple connections in peripheral/central mode”, said Arduino. IO is 3.3V.