#include <stdio.h>
#include <math.h> // for log()
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/adc.h"

float readTemperature(adc1_channel_t  channel, float nominalRes, float B);

void app_main()
{
  adc1_config_width(ADC_WIDTH_BIT_12); // pass appropriate argument

  adc1_config_channel_atten (ADC1_CHANNEL_3, ADC_ATTEN_DB_11); // pass appropriate argument

  while (1) {
  float tempC = readTemperature(ADC1_CHANNEL_3, 10000, 3950); // pass appropriate arguments

    printf("Current temperature is:%.2f°C\n",tempC); // complete this statement correctly

    vTaskDelay(pdMS_TO_TICKS(500));
  }
}

float readTemperature(adc1_channel_t  channel, float nominalRes, float B) {
  // setting it into celcius format
  float T1 = 25 + 273.15;

  // total resistance
  float RT;
  // Voltage
  float VRT;
  // current temerature
  float T2;
  float R2 = 10000;
  //getting the raw data and setting it to adc_value
  int adc_value = adc1_get_raw(channel);
  int adc_10bit = adc_value >> 2;
  //setting the voltage to be equal to the raw times 3.3 divided by max adc value for 10bit resolution
  VRT = ( adc_10bit * 3.3f) / 1023;
  //total resistance
  RT = (R2 * VRT) / (3.3 - VRT);
  //temperature
  T2 = 1  /   ( (1 / T1) + (logf(RT / nominalRes) / B));
  //setting it to celcius
  float celcius = T2 - 273.15;
  vTaskDelay(1000 / portTICK_PERIOD_MS);

return celcius;
}