Accel 17 click

Accel 17 Click is a compact add-on board that contains an acceleration sensor. This board features the MXC62320MP, a low-power digital output dual-axis accelerometer fabricated on a standard, submicron CMOS process from MEMSIC.

click Product page

Click library

• Author : Luka Filipovic
• Date : Sep 2021.
• Type : I2C type

Software Support

We provide a library for the Accel17 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 Accel17 Click driver.

Standard key functions :

• accel17_cfg_setup Config Object Initialization function.

  void accel17_cfg_setup ( accel17_cfg_t *cfg );

• accel17_init Initialization function.

  err_t accel17_init ( accel17_t *ctx, accel17_cfg_t *cfg );

• accel17_default_cfg Click Default Configuration function.

  err_t accel17_default_cfg ( accel17_t *ctx );

Example key functions :

• accel17_get_axes_data Accel data reading.

  err_t accel17_get_axes_data ( accel17_t *ctx, accel17_axes_t *axes );

• accel17_generic_read Reading function.

  err_t accel17_generic_read ( accel17_t *ctx, uint8_t reg, uint8_t *rx_buf, uint8_t rx_len );

• accel17_generic_write Writing function.

  err_t accel17_generic_write ( accel17_t *ctx, uint8_t reg, uint8_t tx_data );

Example Description

This example showcases ability of the device to read x, y axis orientation.

The demo application is composed of two sections :

Application Init

Initialization of communication modules(I2C, UART), and configures device.

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    accel17_cfg_t accel17_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.
    accel17_cfg_setup( &accel17_cfg );
    ACCEL17_MAP_MIKROBUS( accel17_cfg, MIKROBUS_1 );
    err_t init_flag = accel17_init( &accel17, &accel17_cfg );
    if ( I2C_MASTER_ERROR == init_flag ) 
    {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    accel17_default_cfg ( &accel17 );
    Delay_ms ( 1000 );
    log_info( &logger, " Application Task " );
}

Application Task

Reads axis data and calculates it and logs result every 300ms.

void application_task ( void ) 
{
    accel17_axes_t axes;
    accel17_get_axes_data ( &accel17, &axes );
    log_printf( &logger, " > X[degree]: %.2f\r\n > Y[degree]: %.2f\r\n", axes.x, axes.y );
    log_printf( &logger, "*********************************\r\n" );
    Delay_ms ( 300 );
}

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.Accel17

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.