Is it possible to call digitalWrite() to write to one of the LEDs connected to the NINA, from inside an interrupt callback? The reason I ask is because when I tried that, it bricked my nano rp2040. Also, why can't I do something like digitalWrite(LEDB, 1); ? Why should that give me a compile error…

[image] bloxxom: Why should that give me a compile error? what the error?

/Users/neil/devel/rp2040_clock/interrupt_test/interrupt_test.ino: In function 'void setup()': interrupt_test:67:23: error: call to 'NinaPin::operator int' declared with attribute error: Change me to a #define digitalWrite(LEDB, 1); ^

try to add macro in the first lines of sketch (before setup()) #define led LEDB and use it instead of LEDB in the digitalWrite digitalWrite(led,1);

That still gives the same error.

Have you #included the WiFiNINA library ? See Nano RP2040 Connect RGB LED Tutorial - Learn Embedded Systems

Yes. It works if I do digitalWrite(LEDB, HIGH); but not if I put 1 instead of 'HIGH'. That's my question. Why can't I just put a number there?

Perhaps your question could have been a little more specific How is HIGH defined for the RP2040 ?

If I print it out using Serial.println(), it prints 1. But I don't know where to look to find the macro that defines it.

Here's a simplified sketch that shows the problem: #include <WiFiNINA.h> void setup() { pinMode(LEDB, OUTPUT); digitalWrite(LEDB, HIGH); // This compiles okay. digitalWrite(LEDB, 1); // This throws a compile error. } void loop() { // put your main code here, to run repeatedly: }

Printing it is good enough and a value of 1 is no surprise Please post the full error message

digitalWrite to rp2040 RGB LEDs?

Official Hardware Nano Family Nano RP2040 Connect

b707 July 20, 2022, 7:58pm 2

what the error?

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digitalWrite to rp2040 RGB LEDs?

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