Linduino  1.3.0
Linear Technology Arduino-Compatible Demonstration Board

Library for LTC2942 Battery Gas Gauge with Temperature, Voltage Measurement. More...

Detailed Description

Library for LTC2942 Battery Gas Gauge with Temperature, Voltage Measurement.

Definition in file LTC2942.cpp.

Go to the source code of this file.

Functions

int8_t LTC2942_write (uint8_t i2c_address, uint8_t adc_command, uint8_t code)
 Write an 8-bit code to the LTC2942. More...
 
int8_t LTC2942_write_16_bits (uint8_t i2c_address, uint8_t adc_command, uint16_t code)
 Write a 16-bit code to the LTC2942. More...
 
int8_t LTC2942_read (uint8_t i2c_address, uint8_t adc_command, uint8_t *adc_code)
 Reads an 8-bit adc_code from LTC2942. More...
 
int8_t LTC2942_read_16_bits (uint8_t i2c_address, uint8_t adc_command, uint16_t *adc_code)
 Reads a 16-bit adc_code from LTC2942. More...
 
float LTC2942_code_to_coulombs (uint16_t adc_code, float resistor, uint16_t prescalar)
 Calculate the LTC2942 charge in Coulombs. More...
 
float LTC2942_code_to_mAh (uint16_t adc_code, float resistor, uint16_t prescalar)
 Calculate the LTC2942 charge in mAh. More...
 
float LTC2942_code_to_voltage (uint16_t adc_code)
 Calculate the LTC2942 SENSE+ voltage. More...
 
float LTC2942_code_to_kelvin_temperature (uint16_t adc_code)
 Calculate the LTC2942 temperature. More...
 
float LTC2942_code_to_celcius_temperature (uint16_t adc_code)
 Calculate the LTC2942 temperature. More...
 
int8_t LTC2942_register_set_clear_bits (uint8_t i2c_address, uint8_t register_address, uint8_t bits_to_set, uint8_t bits_to_clear)
 

Function Documentation

◆ LTC2942_code_to_celcius_temperature()

float LTC2942_code_to_celcius_temperature ( uint16_t  adc_code)

Calculate the LTC2942 temperature.

Returns
Returns the temperature in Celcius
Parameters
adc_codeThe RAW ADC value

Definition at line 148 of file LTC2942.cpp.

◆ LTC2942_code_to_coulombs()

float LTC2942_code_to_coulombs ( uint16_t  adc_code,
float  resistor,
uint16_t  prescalar 
)

Calculate the LTC2942 charge in Coulombs.

Returns
Returns the Coulombs of charge in the ACR register.
Parameters
adc_codeThe RAW ADC value
resistorThe sense resistor value
prescalarThe prescalar value

Definition at line 114 of file LTC2942.cpp.

◆ LTC2942_code_to_kelvin_temperature()

float LTC2942_code_to_kelvin_temperature ( uint16_t  adc_code)

Calculate the LTC2942 temperature.

Returns
Returns the temperature in Kelvin
Parameters
adc_codeThe RAW ADC value

Definition at line 140 of file LTC2942.cpp.

◆ LTC2942_code_to_mAh()

float LTC2942_code_to_mAh ( uint16_t  adc_code,
float  resistor,
uint16_t  prescalar 
)

Calculate the LTC2942 charge in mAh.

Returns
Returns the Coulombs of charge in the ACR register.
Parameters
adc_codeThe RAW ADC value
resistorThe sense resistor value
prescalarThe prescalar value

Definition at line 123 of file LTC2942.cpp.

◆ LTC2942_code_to_voltage()

float LTC2942_code_to_voltage ( uint16_t  adc_code)

Calculate the LTC2942 SENSE+ voltage.

Returns
Returns the SENSE+ Voltage in Volts
Parameters
adc_codeThe RAW ADC value

Definition at line 131 of file LTC2942.cpp.

◆ LTC2942_read()

int8_t LTC2942_read ( uint8_t  i2c_address,
uint8_t  adc_command,
uint8_t *  adc_code 
)

Reads an 8-bit adc_code from LTC2942.

Returns
The function returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.
Parameters
i2c_addressRegister address for the LTC2942
adc_commandThe "command byte" for the LTC2942
adc_codeValue that will be read from the register.

Definition at line 92 of file LTC2942.cpp.

◆ LTC2942_read_16_bits()

int8_t LTC2942_read_16_bits ( uint8_t  i2c_address,
uint8_t  adc_command,
uint16_t *  adc_code 
)

Reads a 16-bit adc_code from LTC2942.

Returns
The function returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.
Parameters
i2c_addressRegister address for the LTC2942
adc_commandThe "command byte" for the LTC2942
adc_codeValue that will be read from the register.

Definition at line 103 of file LTC2942.cpp.

◆ LTC2942_register_set_clear_bits()

int8_t LTC2942_register_set_clear_bits ( uint8_t  i2c_address,
uint8_t  register_address,
uint8_t  bits_to_set,
uint8_t  bits_to_clear 
)

Definition at line 158 of file LTC2942.cpp.

◆ LTC2942_write()

int8_t LTC2942_write ( uint8_t  i2c_address,
uint8_t  adc_command,
uint8_t  code 
)

Write an 8-bit code to the LTC2942.

Returns
The function returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.
Parameters
i2c_addressRegister address for the LTC2942
adc_commandThe "command byte" for the LTC2942
codeValue that will be written to the register.

Definition at line 71 of file LTC2942.cpp.

◆ LTC2942_write_16_bits()

int8_t LTC2942_write_16_bits ( uint8_t  i2c_address,
uint8_t  adc_command,
uint16_t  code 
)

Write a 16-bit code to the LTC2942.

Returns
The function returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.
Parameters
i2c_addressRegister address for the LTC2942
adc_commandThe "command byte" for the LTC2942
codeValue that will be written to the register.

Definition at line 82 of file LTC2942.cpp.