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Interrupt errors#11874

MeisterQ started this conversation inGeneral
Sep 25, 2025· 0 comments
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Hello, im using Interrupts on esp32 and i always get the errors:

16:50:46.072 -> E (1714) gpio: gpio_pullup_en(78): GPIO number error (input-only E (1762) gpio: gpio_isr_handler_remove(568): GPIO isr service is not installed, call gpio_install_isr_service() first16:50:46.118 -> E (1763) gpio: gpio_isr_handler_remove(568): GPIO isr service is not installed, call gpio_install_isr_service() first

This is my function where i call it

void fan(){  unsigned long currentMillis2 = millis();  if (currentMillis2 - previousMillis2 >= interval2)  {    detachInterrupt(digitalPinToInterrupt(FAN1RPM));    detachInterrupt(digitalPinToInterrupt(FAN2RPM));    rpm1 = half_revolutions1 * 30;    rpm2 = half_revolutions2 * 30;    //Serial.print("Fan1: ");    //Serial.println(rpm1);    //Serial.print("Fan2: ");    //Serial.println(rpm2);    half_revolutions1 = 0;    half_revolutions2 = 0;    previousMillis2 = currentMillis2;    attachInterrupt(digitalPinToInterrupt(FAN1RPM), rpm_fan1, RISING);    attachInterrupt(digitalPinToInterrupt(FAN2RPM), rpm_fan2, RISING);  }}

Is there anything i can do to fix this?

Im using GPIO 34 ands 35 for interrupt with an external pullup resistor connected. The module is a esp-wroom-32.

If i comment all interrupt lines, the error is gone.

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