*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.