“I looked at all the available rotary encoder sketches and none of them ... which is much slower than reading the port pins directly, and it spends (wastes) some time reporting serial data to the host ...

This way the microcontroller is concerned with the encoder signal only when a new pulse comes. Since the interrupt signal comes from outside the Arduino it is called as external interrupt. Arduino Uno ...

Making your own infrared (IR) sniffer is not only rewarding but also amazingly simple. I’m talking about an IR decoder/encoder that primarily decodes the invisible data transmitting from an IR remote ...

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 ...

After some research, it was determined that it would be relatively simple to have an Arduino convert incoming ... or Clear to Send pin, on the serial side of things. When this pin is active ...