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mikroSDK Library

BATT-MON 2 Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.9

mikroSDK Library: 2.0.0.0

Category: Battery Charger

Downloaded: 181 times

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License: MIT license  

BATT-MON 2 Click is a compact add-on board representing a battery monitoring solution. This board features the MAX17262, an ultra-low power I2C-configurable fuel-gauge IC which implements the ModelGauge™ m5 algorithm from Analog Devices. The MAX17262 monitors a single-cell battery pack (best performance for batteries with 100mAhr to 6Ahr capacity), providing precision measurements of current, voltage, and temperature, and supporting internal current sensing for up to 3.1A pulse current. The battery pack's temperature is measured using an internal temperature sensor or external thermistor.

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mikroSDK Library Blog


BATT-MON 2 Click

BATT-MON 2 Click is a compact add-on board representing a battery monitoring solution. This board features the MAX17262, an ultra-low power I2C-configurable fuel-gauge IC which implements the ModelGauge™ m5 algorithm from Analog Devices. The MAX17262 monitors a single-cell battery pack (best performance for batteries with 100mAhr to 6Ahr capacity), providing precision measurements of current, voltage, and temperature, and supporting internal current sensing for up to 3.1A pulse current. The battery pack's temperature is measured using an internal temperature sensor or external thermistor.

battmon2_click.png

Click Product page


Click library

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

Software Support

We provide a library for the BATT-MON 2 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 2 Click driver.

Standard key functions :

  • battmon2_cfg_setup Config Object Initialization function.

    void battmon2_cfg_setup ( battmon2_cfg_t *cfg );
  • battmon2_init Initialization function.

    err_t battmon2_init ( battmon2_t *ctx, battmon2_cfg_t *cfg );

Example key functions :

  • battmon2_get_battery_voltage This function reads the battery voltage in mV.

    err_t battmon2_get_battery_voltage ( battmon2_t *ctx, float *voltage );
  • battmon2_get_battery_current This function reads the battery current in mA.

    err_t battmon2_get_battery_current ( battmon2_t *ctx, float *current );
  • battmon2_get_battery_percentage This function reads the battery remaining SOC percentage.

    err_t battmon2_get_battery_percentage ( battmon2_t *ctx, float *percentage );

Example Description

This example demonstrates the use of BATT-MON 2 Click board by monitoring the measurements of battery voltage, current, capacity, percentage, time-to-empty or time-to-full, as well as the chip internal temperature.

The demo application is composed of two sections :

Application Init

Initializes the driver and checks the communication by reading and verifying the device ID.


void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    battmon2_cfg_t battmon2_cfg;  /**< Click config object. */

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );

    // Click initialization.
    battmon2_cfg_setup( &battmon2_cfg );
    BATTMON2_MAP_MIKROBUS( battmon2_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == battmon2_init( &battmon2, &battmon2_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    if ( BATTMON2_ERROR == battmon2_check_communication ( &battmon2 ) )
    {
        log_error( &logger, " Check communication." );
        for ( ; ; );
    }

    log_info( &logger, " Application Task " );
}

Application Task

Reads and displays on the USB UART the measurements of battery voltage, current, capacity, percentage, time-to-empty or time-to-full, as well as the chip internal temperature approximately once per second.

void application_task ( void )
{
    float voltage, capacity, percentage, current, die_temp;
    if ( BATTMON2_OK == battmon2_get_battery_voltage ( &battmon2, &voltage ) )
    {
        log_printf ( &logger, " Voltage: %.1f mV \r\n", voltage );
    }
    if ( BATTMON2_OK == battmon2_get_battery_current ( &battmon2, &current ) )
    {
        log_printf ( &logger, " Current: %.1f mA \r\n", current );
    }
    if ( BATTMON2_OK == battmon2_get_battery_capacity ( &battmon2, &capacity ) )
    {
        log_printf ( &logger, " Capacity: %.1f mAh \r\n", capacity );
    }
    if ( BATTMON2_OK == battmon2_get_battery_percentage ( &battmon2, &percentage ) )
    {
        log_printf ( &logger, " Percentage: %.1f %% \r\n", percentage );
    }
    if ( current > 0 )
    {
        uint32_t time_to_full;
        if ( BATTMON2_OK == battmon2_get_battery_ttf ( &battmon2, &time_to_full ) )
        {
            log_printf ( &logger, " Time to full: %uh %umin %usec \r\n", ( uint16_t ) ( time_to_full / 3600 ), 
                                                                         ( uint16_t ) ( time_to_full % 3600 ) / 60,
                                                                         ( uint16_t ) ( time_to_full % 60 ) );
        }
    }
    else if ( current < 0 )
    {
        uint32_t time_to_empty;
        if ( BATTMON2_OK == battmon2_get_battery_tte ( &battmon2, &time_to_empty ) )
        {
            log_printf ( &logger, " Time to empty: %uh %umin %usec \r\n", ( uint16_t ) ( time_to_empty / 3600 ), 
                                                                          ( uint16_t ) ( time_to_empty % 3600 ) / 60,
                                                                          ( uint16_t ) ( time_to_empty % 60 ) );
        }
    }
    if ( BATTMON2_OK == battmon2_get_die_temperature ( &battmon2, &die_temp ) )
    {
        log_printf ( &logger, " Internal temperature: %.2f C \r\n\n", die_temp );
    }
    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.BATTMON2

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.


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