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mikroSDK Library

HAPTIC 2 Click

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0

Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.15

mikroSDK Library: 2.0.0.0

Category: Haptic

Downloaded: 405 times

Not followed.

License: MIT license  

HAPTIC 2 Click is a compact add-on board that contains a linear vibration driver. This board features the LC898302AXA, a motor driver dedicated to LRA and ERM applications from ON Semiconductor. Controlled by only one pin, it allows crisp vibration thanks to automatic braking and over-driving feature and ignores the deviation of resonance frequency thanks to auto-tuning function. The original driving waveform will enable you to reduce power consumption, and it is helpful to maintain battery lifetime. This Click board™ is suitable for numerous everyday applications such as indicator systems, game consoles, training equipment/simulators with haptics function, robotics and mechatronics, and many more.

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mikroSDK Library Blog


HAPTIC 2 Click

HAPTIC 2 Click is a compact add-on board that contains a linear vibration driver. This board features the LC898302AXA, a motor driver dedicated to LRA and ERM applications from ON Semiconductor. Controlled by only one pin, it allows crisp vibration thanks to automatic braking and over-driving feature and ignores the deviation of resonance frequency thanks to auto-tuning function. The original driving waveform will enable you to reduce power consumption, and it is helpful to maintain battery lifetime.

haptic2_click.png

Click Product page


Click library

  • Author : Nikola Peric
  • Date : Feb 2022.
  • Type : PWM type

Software Support

We provide a library for the Haptic2 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 Haptic2 Click driver.

Standard key functions :

  • haptic2_cfg_setup Config Object Initialization function.

    void haptic2_cfg_setup ( haptic2_cfg_t *cfg );
  • haptic2_init Initialization function.

    HAPTIC2_RETVAL haptic2_init ( haptic2_t *ctx, haptic2_cfg_t *cfg );
  • haptic2_default_cfg Click Default Configuration function.

    void haptic2_default_cfg ( haptic2_t *ctx );

Example key functions :

  • haptic2_set_duty_cycle Sets PWM duty cycle.

    err_t haptic2_set_duty_cycle ( haptic2_t *ctx, float duty_cycle );
  • haptic2_pwm_stop Stop PWM module.

    err_t haptic2_pwm_stop ( haptic2_t *ctx );
  • haptic2_pwm_start Start PWM module.

    err_t haptic2_pwm_start ( haptic2_t *ctx );

Examples Description

This app shows some of the functions that Haptic 2 Click has.

The demo application is composed of two sections :

Application Init

Initialization driver enables - PWM, PWM signal is set to 8000 HZ and to give a 0% duty cycle and start PWM module.

void application_init ( void ) 
{
    log_cfg_t log_cfg;          /**< Logger config object. */
    haptic2_cfg_t haptic2_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_printf( &logger, "\r\n" );
    log_info( &logger, " Application Init " );

    // Click initialization.

    haptic2_cfg_setup( &haptic2_cfg );
    HAPTIC2_MAP_MIKROBUS( haptic2_cfg, MIKROBUS_1 );
    err_t init_flag  = haptic2_init( &haptic2, &haptic2_cfg );
    if ( init_flag == PWM_ERROR ) 
    {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    haptic2_default_cfg ( &haptic2 );

    haptic2_set_duty_cycle ( &haptic2, 0.0 );
    haptic2_pwm_start( &haptic2 );

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

Application Task

This is an example that demonstrates the use of the Haptic 2 Click board. In this example, we switched PWM signal back and forth from 10% duty cycle to 90% duty cycle every 500 milliseconds. Results are being sent to the Usart Terminal where you can track their changes.

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

    haptic2_set_duty_cycle ( &haptic2, duty );
    log_printf( &logger, "Duty: %d%%\r\n", ( uint16_t )( duty_cnt * 10 ) );
    Delay_ms ( 500 );

    if ( 10 == 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.Haptic2

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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