ads1115.h

#pragma once
 
/************************************************************************************************
 * @file   ads1115.h
 *
 * @brief  ADS1115 driver header file
 *
 * @date   2025-07-30
 * @author Midnight Sun Team
 ************************************************************************************************/
 
/* Standard library Headers */
#include <stdint.h>
 
/* Inter-component Headers */
#include "gpio.h"
#include "i2c.h"
 
/* Intra-component Headers */
#include "status.h"
 
/* Standard Library Headers */
 
#define ALRT_EVENT 0U
 
#define ADS1115_I2C_PORT I2C_PORT_1
 
typedef enum {
  ADS1115_ADDR_GND = 0x48U, 
  ADS1115_ADDR_VDD = 0x49U, 
  ADS1115_ADDR_SDA = 0x4AU, 
  ADS1115_ADDR_SCL = 0x4BU, 
} ADS1115_Address;
 
typedef enum {
  ADS1115_CHANNEL_0 = 0, 
  ADS1115_CHANNEL_1,     
  ADS1115_CHANNEL_2,     
  ADS1115_CHANNEL_3,     
} ADS1115_Channel;
 
typedef enum {
  ADS1115_REG_CONVERSION = 0x00, 
  ADS1115_REG_CONFIG,            
  ADS1115_REG_LO_THRESH,         
  ADS1115_REG_HI_THRESH,         
} ADS1115_Reg;
 
typedef struct {
  I2CPort i2c_port;       
  I2CAddress i2c_addr;    
  GpioAddress *ready_pin; 
} ADS1115_Config;
 
StatusCode ads1115_init(ADS1115_Config *config, ADS1115_Address i2c_addr, GpioAddress *ready_pin);
 
StatusCode ads1115_select_channel(ADS1115_Config *config, ADS1115_Channel channel);
 
StatusCode ads1115_read_raw(ADS1115_Config *config, ADS1115_Channel channel, int16_t *reading);
 
StatusCode ads1115_read_converted(ADS1115_Config *config, ADS1115_Channel channel, float *reading);