Arduino nano interrupt pins pinout1/21/2024 First we will find the PB port, which corresponds to the group of pins PCINT0 to PCINT5 and which are pins D8 to D13.In this diagram we can see the different groups of pins that there are, which are named as PB, PC and PD: To do this, the first thing we have to learn are the different groups of pins that there are, for which we can take a look at this image: In this first part we will learn how to activate each of the interrupt groups in order to use it. Port Registers That Will Trigger Interrupts (PCICR) Pin registers that will trigger interrupts (PCMSK).Register of ports that will trigger interrupts (PCICR).To understand it better, I will divide this guide into three parts: These will be activated whenever there is any change of state on the pin, either from HIGH to LOW, or from LOW to HIGH. Of course it has its disadvantages, and the main one is that you cannot indicate when to trigger the interrupt as you would with hardware interrupts. The advantages of PCINT interrupts are that you can use any pin on the Arduino to trigger them (which is quite useful). Earlier we talked about hardware interrupts (INT), which were limited to certain pins depending on the Arduino model. Today I am going to bring you something a little more advanced in Arduino, and it is the way to use PCINT Interrupts (Pin Changes interrupts), in Arduino.
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