// Search pins uasable for endstop-interupts // Compile with the same settings you'd use with Marlin. #if defined(ARDUINO_AVR_MEGA2560) || defined(ARDUINO_AVR_MEGA) #undef digitalPinToPCICR #define digitalPinToPCICR(p) ( (((p) >= 10) && ((p) <= 15)) || \ (((p) >= 50) && ((p) <= 53)) || \ (((p) >= 62) && ((p) <= 69)) ? (&PCICR) : ((uint8_t *)0) ) #endif void setup() { Serial.begin(9600); Serial.println("PINs causing interrups are:"); for(int i=2; i<NUM_DIGITAL_PINS; i++){ if( digitalPinToPCICR(i) != NULL || (int)digitalPinToInterrupt(i) != -1 ) { for (int j= 0; j<NUM_ANALOG_INPUTS; j++){ if(analogInputToDigitalPin(j) == i) { Serial.print("A"); Serial.print(j); Serial.print(" = "); } } Serial.print("D"); Serial.println(i); } } Serial.println("Arduino pin numbering!"); } void loop() { // put your main code here, to run repeatedly: }