const float BETA = 3950; 
void setup() {
	//  __HAL_RCC_GPIOA_CLK_ENABLE(); // enable clock to GPIOA
	// GPIO_InitTypeDef ADCpin; //create an instance of GPIO_InitTypeDef C struct
	// ADCpin.Pin = GPIO_PIN_1; // Select pin PA0
	// ADCpin.Mode = GPIO_MODE_ANALOG; // Select Analog Mode
	// ADCpin.Pull = GPIO_NOPULL; // Disable internal pull-up or pull-down resistor
	// HAL_GPIO_Init(GPIOA, &ADCpin); // initialize PA0 as analog input pin
  __HAL_RCC_GPIOA_CLK_ENABLE(); // enable clock to GPIOA
	GPIO_InitTypeDef ADCpin; //create an instance of GPIO_InitTypeDef C struct
	ADCpin.Pin = GPIO_PIN_0; // Select pin PA0
	ADCpin.Mode = GPIO_MODE_ANALOG; // Select Analog Mode
	ADCpin.Pull = GPIO_NOPULL; // Disable internal pull-up or pull-down resistor
	HAL_GPIO_Init(GPIOA, &ADCpin); // initialize PA0 as analog input pin
  Serial.begin(9600);
}

void loop() {
 int analogValue = HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_1);
 // int analogValue =(int)HAL_ADC_GetValue(GPIO_PIN_1)
 int analogValue1 = analogRead(A1);
  //Serial.print(analogValue);
   float celsius = 1 / (log(1 / (1023. / analogValue1 - 1)) / BETA + 1.0 / 298.15) - 273.15;
   Serial.print("Temperature: ");
  Serial.print(celsius);
   Serial.println(" ℃");
   delay(1000);
}