battmon3  2.0.0.0
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BATT-MON 3 Click

BATT-MON 3 Click is a compact add-on board representing an advanced battery monitoring solution. This board features the BQ35100, battery fuel gauge, and end-of-service monitor from Texas Instruments. The BQ35100 provides highly configurable fuel gauging for non-rechargeable (primary) lithium batteries without requiring a forced battery discharge. It uses patented TI gauging algorithms to support the option to replace an old battery with a new one seamlessly. It provides accurate results with ultra-low average power consumption, alongside an I2C interface through which the host can read the gathered data.

Click Product page


Click library

  • Author : Stefan Filipovic
  • Date : Feb 2022.
  • Type : I2C type

Software Support

We provide a library for the BATT-MON 3 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for BATT-MON 3 Click driver.

Standard key functions :

Example key functions :

Example Description

This example demonstrates the use of BATT-MON 3 Click by measuring the battery

voltage, current and used capacity, as well as the chip internal temperature.

The demo application is composed of two sections :

Application Init

Initialized the driver and performs the Click default configuration.

void application_init ( void )
{
log_cfg_t log_cfg;
battmon3_cfg_t battmon3_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
battmon3_cfg_setup( &battmon3_cfg );
BATTMON3_MAP_MIKROBUS( battmon3_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == battmon3_init( &battmon3, &battmon3_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( BATTMON3_ERROR == battmon3_default_cfg ( &battmon3 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Reads the battery voltage (mV), current (mA), used capacity (mAh) and the chip internal

temperature (Celsius) and displays the results on the USB UART approximately once per second.

void application_task ( void )
{
uint16_t voltage;
int16_t current;
float temperature, used_capacity;
if ( BATTMON3_OK == battmon3_read_voltage ( &battmon3, &voltage ) )
{
log_printf ( &logger, " Voltage: %u mV\r\n", voltage );
}
if ( BATTMON3_OK == battmon3_read_current ( &battmon3, &current ) )
{
log_printf ( &logger, " Current: %d mA\r\n", current );
}
if ( BATTMON3_OK == battmon3_read_temperature ( &battmon3, &temperature ) )
{
log_printf ( &logger, " Temperature: %.3f C\r\n", temperature );
}
if ( BATTMON3_OK == battmon3_read_used_capacity ( &battmon3, &used_capacity ) )
{
log_printf ( &logger, " Used Capacity: %.3f mAh\r\n\n", used_capacity );
}
Delay_ms ( 1000 );
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.BATTMON3

Additional notes and informations

Depending on the development board you are using, you may need USB UART Click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.


battmon3_cfg_t
BATT-MON 3 Click configuration object.
Definition: battmon3.h:244
BATTMON3_MAP_MIKROBUS
#define BATTMON3_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: battmon3.h:206
application_task
void application_task(void)
Definition: main.c:65
BATTMON3_OK
@ BATTMON3_OK
Definition: battmon3.h:262
battmon3_cfg_setup
void battmon3_cfg_setup(battmon3_cfg_t *cfg)
BATT-MON 3 configuration object setup function.
battmon3_default_cfg
err_t battmon3_default_cfg(battmon3_t *ctx)
BATT-MON 3 default configuration function.
battmon3_read_current
err_t battmon3_read_current(battmon3_t *ctx, int16_t *current)
BATT-MON 3 read current function.
battmon3_read_temperature
err_t battmon3_read_temperature(battmon3_t *ctx, float *temperature)
BATT-MON 3 read temperature function.
battmon3_read_used_capacity
err_t battmon3_read_used_capacity(battmon3_t *ctx, float *used_capacity)
BATT-MON 3 read used capacity function.
battmon3_init
err_t battmon3_init(battmon3_t *ctx, battmon3_cfg_t *cfg)
BATT-MON 3 initialization function.
BATTMON3_ERROR
@ BATTMON3_ERROR
Definition: battmon3.h:263
application_init
void application_init(void)
Definition: main.c:29
battmon3_t
BATT-MON 3 Click context object.
Definition: battmon3.h:220
battmon3_read_voltage
err_t battmon3_read_voltage(battmon3_t *ctx, uint16_t *voltage)
BATT-MON 3 read voltage function.