Note that in the table below, the interrupt numbers refer to the number to be passed to attachInterrupt().

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. By doing int ledPin = 9; you will be allocating an int memory whose value is used every time you use ledPin.

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May 13, 2015 · The following is an example from the Arduino website.

2 is 32. May 16, 2023 · So if you later decide to change from pin 13 to pin 12, you only need to change one spot in the code. .

Oct 30, 2017 · Arduino pin names are actually alias names of selected Morpho pin names.

void setup () { pinMode (13, OUTPUT); // sets the digital pin 13 as output } void loop () {. It’s important to note that: Each pin can provide/sink up to 40 mA max. Using variables for pin names or #defines is a matter for debate but either way the names should be easily understood.

4 Answers. .

Contribute to stm32duino/Arduino_Core_STM32 development by creating an account on GitHub.

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For example, P1. 2 days ago · Often number 0 (for digital pin 2) or number 1 (for digital pin 3) were used.

This is starting point for you.

void setup () { pinMode (13, OUTPUT); // sets the digital pin 13 as output } void loop () {.
May 13, 2015 · The following is an example from the Arduino website.