Interrupt service routine for SAMD21G18

[PJ_Glasso]

Hi there,
You almost have it…

How to use more than one serial Port

I see this code, uses soft serial. I have something similar on a ESPc3 talking to GPS and Serial port. Works very well. #include <SoftwareSerial.h> SoftwareSerial mySerial = SoftwareSerial(21,20); // these are GPIO pins on Arduino RP2040 D9 and D8 void setup(){ Serial.begin(9600); // USB while(!Serial); // For USB Serial1.begin(9600); // for the provided UART port on the Nano RP2040 mySerial.begin(9600); // our custom created Serial UART interface } void loop(){ Serial.w…

HTH
GL PJ

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