/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2025 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include <stm32f1xx_hal.h>

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
#define PIN_A GPIOA
#define DHT_PIN GPIO_PIN_1
#define DIR_PIN GPIO_PIN_11
#define STEP_PIN GPIO_PIN_12

  /*Configure GPIO pin Output Level */
#define PIN_B GPIOB
#define PR_PIN GPIO_PIN_0
#define PIR_PIN GPIO_PIN_1
#define BUZZER_PIN GPIO_PIN_6
#define LED_PIN GPIO_PIN_9
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/
ADC_HandleTypeDef hadc1;

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_ADC1_Init(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
void set_adc_channel(uint32_t channel) {
    ADC_ChannelConfTypeDef sConfig = {0};
    sConfig.Channel = channel;
    sConfig.Rank = ADC_REGULAR_RANK_1;
    sConfig.SamplingTime = ADC_SAMPLETIME_28CYCLES_5;
    HAL_ADC_ConfigChannel(&hadc1, &sConfig);
}

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{

  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_ADC1_Init();
  /* USER CODE BEGIN 2 */
printf("%s\n", "duar");
  

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
	  //SENSOR CAHAYA
	  // set_adc_channel(ADC_CHANNEL_8); //pb0
    //   HAL_ADC_Start(&hadc1);
    //   if (HAL_ADC_PollForConversion(&hadc1, 100) == HAL_OK) {
    //       uint16_t analogValue = HAL_ADC_GetValue(&hadc1);
    //       float voltage = analogValue / 4095.0 * 3.3;

    //       float resistance = 2000.0f * voltage / (3.3 - voltage);
    //       float lux = pow(50e3 * pow(10, 0.7) / resistance, (1.0 / 0.7));

    //       if(lux > 500){
    //           HAL_GPIO_WritePin(GPIOB, LED_PIN, GPIO_PIN_SET);
    //       } else{
    //           HAL_GPIO_WritePin(GPIOB, LED_PIN, GPIO_PIN_RESET);
    //       }
    //   }
    //   HAL_ADC_Stop(&hadc1);
      
      printf("%s\n", "A string");

      //SENSOR GAS
      set_adc_channel(ADC_CHANNEL_7); //pa7
      HAL_ADC_Start(&hadc1);
            if (HAL_ADC_PollForConversion(&hadc1, 1000) == HAL_OK) {
                uint16_t analogValue = HAL_ADC_GetValue(&hadc1);
                float RL = 5000.0f;         // resistor load 5k ohm
                float R0 = 10.0f;           // default R0 (bisa diganti nanti)
                float voltage = (analogValue / 4095.0f) * 3.3f;
                float Rs = (3.3f - voltage) / voltage * RL;
                float ratio = Rs / R0;
                float ppm = powf(10.0f, (-0.47f * log10f(ratio) + 1.84f));
                 printf("%d ppm\n", ppm);
                if(ppm > 1000){
                    HAL_GPIO_WritePin(GPIOB, LED_PIN, GPIO_PIN_SET);
                } else{
                    HAL_GPIO_WritePin(GPIOB, LED_PIN, GPIO_PIN_RESET);
                }
            }
       HAL_ADC_Stop(&hadc1);
       
       //SENSOR MOTION
	    if (HAL_GPIO_ReadPin(GPIOB, PIR_PIN) == GPIO_PIN_SET) {
	        HAL_GPIO_WritePin(GPIOB, BUZZER_PIN, GPIO_PIN_SET);  
         HAL_Delay(200);  
         HAL_GPIO_WritePin(GPIOB, BUZZER_PIN, GPIO_PIN_SET);
         HAL_Delay(200);  
	    }else{
	        HAL_GPIO_WritePin(GPIOB, BUZZER_PIN, GPIO_PIN_RESET); 
	    }


	    // if (HAL_GPIO_ReadPin(GPIOA, GAS_PIN) > 300.0f)  // Gas terdeteksi (LOW)
	    // {
	    //     HAL_GPIO_WritePin(GPIOB, LED_PIN, GPIO_PIN_SET);  // Nyalakan LED (misalnya di pin PB0)
	    // }
	    // else
	    // {
	    //     HAL_GPIO_WritePin(GPIOB, LED_PIN, GPIO_PIN_RESET); // Matikan LED
	    // }

//	  int x;
//	  HAL_GPIO_WritePin(PIN_A, DIR_PIN, GPIO_PIN_SET);
//	  for(x=0; x<200; x=x+1)
//	  {
//		HAL_GPIO_WritePin(PIN_A, STEP_PIN, GPIO_PIN_SET);
//		HAL_Delay(1000);
//		HAL_GPIO_WritePin(PIN_A, STEP_PIN, GPIO_PIN_RESET);
//		HAL_Delay(1000);
//	  }
//	  HAL_Delay(1000);
//	  HAL_GPIO_WritePin(PIN_A, DIR_PIN, GPIO_PIN_RESET);
//	  for(x=0; x<200; x=x+1)
//	  {
//		HAL_GPIO_WritePin(PIN_A, STEP_PIN, GPIO_PIN_SET);
//		HAL_Delay(1000);
//		HAL_GPIO_WritePin(PIN_A, STEP_PIN, GPIO_PIN_RESET);
//		HAL_Delay(1000);
//	  }
//	  HAL_Delay(1000);
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC;
  PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV6;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
  {
    Error_Handler();
  }
}

/**
  * @brief ADC1 Initialization Function
  * @param None
  * @retval None
  */
static void MX_ADC1_Init(void)
{

  /* USER CODE BEGIN ADC1_Init 0 */

  /* USER CODE END ADC1_Init 0 */

  ADC_ChannelConfTypeDef sConfig = {0};

  /* USER CODE BEGIN ADC1_Init 1 */

  /* USER CODE END ADC1_Init 1 */

  /** Common config
  */
  hadc1.Instance = ADC1;
  hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;
  hadc1.Init.ContinuousConvMode = DISABLE;
  hadc1.Init.DiscontinuousConvMode = DISABLE;
  hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
  hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc1.Init.NbrOfConversion = 1;
  if (HAL_ADC_Init(&hadc1) != HAL_OK)
  {
    Error_Handler();
  }

  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_8;
  sConfig.Rank = ADC_REGULAR_RANK_1;
  sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN ADC1_Init 2 */

  /* USER CODE END ADC1_Init 2 */

}

/**
  * @brief GPIO Initialization Function
  * @param None
  * @retval None
  */
static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  /* USER CODE BEGIN MX_GPIO_Init_1 */

  /* USER CODE END MX_GPIO_Init_1 */

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOD_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1|GPIO_PIN_11|GPIO_PIN_12, GPIO_PIN_RESET);

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_1|GPIO_PIN_6|GPIO_PIN_9, GPIO_PIN_RESET);

  /*Configure GPIO pins : PA1 PA11 PA12 */
  GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_11|GPIO_PIN_12;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /*Configure GPIO pins : PB1 PB6 PB9 */
  GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_6|GPIO_PIN_9;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

  /* USER CODE BEGIN MX_GPIO_Init_2 */

  /* USER CODE END MX_GPIO_Init_2 */
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */