*STM32F030F4p6 Problem with GPIO_EXTI1 Pin*

[Kai_Satone]

Hello everyone,
So I am trying to take Input from the sensor and then turn on the LED_1/Sound on and another senarove is that whne I prace the GPIO_EXTI1 turn on the another LED_2. but what is hapning is when senser is not givin Input even then LED_1/Sound is on.
Bun whin i use the TWO code sepratly THe code work with no problem

 1.  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
    if (!button_pressed) {

      handle_sensor_input();
    }
  }

// Handle sensor input
2. void handle_sensor_input(void) {
  GPIO_PinState a = HAL_GPIO_ReadPin(SENSOR1_PORT, SENSOR1_PIN);
  GPIO_PinState b = HAL_GPIO_ReadPin(SENSOR2_PORT, SENSOR2_PIN);

  // Process the sensor state
  if (a == GPIO_PIN_RESET || b == GPIO_PIN_RESET) {

      HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3, GPIO_PIN_SET);
      HAL_Delay(100);
      int randomIndex = rand() % size;
      int randomNumber = numbers[randomIndex];
      printf("Randomly selected number: %d\n", randomNumber);
      selectRandomLED(randomNumber);
//    }
  } else {
    HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3, GPIO_PIN_RESET);
  }
}

3. // EXTI Line1 External Interrupt ISR Handler CallBackFun
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) {
  if (GPIO_Pin == GPIO_PIN_1) { // If The INT Source Is EXTI Line1 (PB1 Pin)
    button_pressed = !button_pressed; // Toggle the button press state
    if (button_pressed) {
    	HAL_GPIO_WritePin(GPIOA, LED_1_Pin | LED_2_Pin | LED_3_Pin | BUZZER_PIN, GPIO_PIN_RESET); // Toggle The Output (LED) Pin

    }
  }
}

[Sarra.S]

Hello @Kai_Satone, 

Potential issues are noisy sensor readings or the button_pressed state is not properly synchronized between the interrupt handler and the main loop; 

If the sensor readings are already noisy or not properly debounced, it will cause false/missing triggers 

Also, use volatile for button_pressed.