Vibro Motor 4 Click

Vibro Motor 4 Click is a compact add-on board that makes an ideal solution for adding simple haptic feedback in any design. This board features the G1040003D, a coin-sized linear resonant actuator (LRA) that generates vibration/haptic feedback from Jinlong Machinery & Electronics, Inc. Driven by a flexible Haptic/Vibra driver, the DRV2605, G1040003D vibrates in the Z-axis, which is perpendicular to the face of the vibration motor. It draws a maximum of 170mA while producing the highest G force/vibration energy of 2 GRMS.

Click Product page

Click library

• Author : Nenad Filipovic
• Date : Aug 2021.
• Type : I2C type

Software Support

We provide a library for the VibroMotor4 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 VibroMotor4 Click driver.

Standard key functions :

• vibromotor4_cfg_setup Config Object Initialization function.

  void vibromotor4_cfg_setup ( vibromotor4_cfg_t *cfg );

• vibromotor4_init Initialization function.

  err_t vibromotor4_init ( vibromotor4_t *ctx, vibromotor4_cfg_t *cfg );

• vibromotor4_default_cfg Click Default Configuration function.

  err_t vibromotor4_default_cfg ( vibromotor4_t *ctx );

Example key functions :

• vibromotor4_set_mode Vibro Motor 4 sets the desired mode function.

  err_t vibromotor4_set_mode ( vibromotor4_t *ctx, uint8_t mode_sel );

• vibromotor4_set_duty_cycle Vibro Motor 4 sets PWM duty cycle.

  err_t vibromotor4_set_duty_cycle ( vibromotor4_t *ctx, float duty_cycle );

• vibromotor4_pwm_start Vibro Motor 4 start PWM module.

  err_t vibromotor4_pwm_start ( vibromotor4_t *ctx );

Example Description

This library contains API for Vibro Motor 4 Click driver. The library initializes and defines the I2C bus drivers to write and read data from registers and PWM module.

The demo application is composed of two sections :

Application Init

The initialization of I2C and PWM module, log UART, and additional pins. After successful driver init, executes a default configuration and configures Vibro Motor 4 Click board™.

void application_init ( void )
{
    log_cfg_t log_cfg;                  /**< Logger config object. */
    vibromotor4_cfg_t vibromotor4_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.
    vibromotor4_cfg_setup( &vibromotor4_cfg );
    VIBROMOTOR4_MAP_MIKROBUS( vibromotor4_cfg, MIKROBUS_1 );
    err_t init_flag = vibromotor4_init( &vibromotor4, &vibromotor4_cfg );
    if ( I2C_MASTER_ERROR == init_flag )
    {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    vibromotor4_enable( &vibromotor4, VIBROMOTOR4_PROPERTY_ENABLE );
    Delay_ms ( 100 );

    vibromotor4_soft_rst( &vibromotor4 );
    Delay_ms ( 100 );

    vibromotor4_default_cfg ( &vibromotor4 );
    Delay_ms ( 100 );

    vibromotor4_set_duty_cycle( &vibromotor4, 0.0 );
    Delay_ms ( 100 );

    vibromotor4_pwm_start( &vibromotor4 );
    Delay_ms ( 100 );

    log_info( &logger, " Application Task " );
    Delay_ms ( 100 );
}

Application Task

This is an example that shows the use of Vibro Motor 4 Click board™. Changing duty cycle results in different vibrations. Results are being sent to the Usart Terminal where you can track their changes.

void application_task ( void )
{
    static int8_t duty_cnt = 0;
    static int8_t duty_inc = 1;
    float duty = duty_cnt / 10.0;

    vibromotor4_set_duty_cycle ( &vibromotor4, duty );
    log_printf( &logger, "> Duty: %d%%\r\n", ( uint16_t )( duty_cnt * 10 ) );

    Delay_ms ( 1000 );

    if ( 5 == duty_cnt ) {
        duty_inc = -1;
    } else if ( 0 == duty_cnt ) {
        duty_inc = 1;
    }
    duty_cnt += duty_inc;
}

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.VibroMotor4

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.