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mikroSDK Library

Rotary B 2 Click

Rating:

0

Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.5

mikroSDK Library: 2.0.0.0

Category: Rotary encoder

Downloaded: 95 times

Not followed.

License: MIT license  

Rotary B 2 Click is a compact add-on board that allows you to add a precision input knob to your design. This board features the TLC5925, a low-power 16-channel constant-current LED sink driver from Texas Instruments that, combined with a high-quality rotary encoder from ALPS, the EC12D1564402, allows you to add a precision input knob to your design. It also features an LED ring composed of 16 individual blue LEDs that can be used to represent the encoder position more visually.

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mikroSDK Library Blog


Rotary B 2 Click

Rotary B 2 Click is a compact add-on board that allows you to add a precision input knob to your design. This board features the TLC5925, a low-power 16-channel constant-current LED sink driver from Texas Instruments that, combined with a high-quality rotary encoder from ALPS, the EC12D1564402, allows you to add a precision input knob to your design. It also features an LED ring composed of 16 individual blue LEDs that can be used to represent the encoder position more visually.

rotaryb2_click.png

Click Product page


Click library

  • Author : Nenad Filipovic
  • Date : Nov 2023.
  • Type : SPI type

Software Support

We provide a library for the Rotary B 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 Rotary B 2 Click driver.

Standard key functions :

  • rotaryb2_cfg_setup Config Object Initialization function.

    void rotaryb2_cfg_setup ( rotaryb2_cfg_t *cfg );
  • rotaryb2_init Initialization function.

    err_t rotaryb2_init ( rotaryb2_t *ctx, rotaryb2_cfg_t *cfg );
  • rotaryb2_default_cfg Click Default Configuration function.

    err_t rotaryb2_default_cfg ( rotaryb2_t *ctx );

Example key functions :

  • rotaryb2_set_led_pos This function turns on the LED for the selected LED position.

    err_t rotaryb2_set_led_pos ( rotaryb2_t *ctx, uint8_t led_pos );
  • rotaryb2_set_led_data This function, using SPI serial interface, writes a desired 16-bit data.

    err_t rotaryb2_set_led_data ( rotaryb2_t *ctx, uint16_t data_in );
  • rotaryb2_get_state_switch This function return rotary encoder switch signal, states of the SW(INT).

    uint8_t rotaryb2_get_state_switch ( rotaryb2_t *ctx );

Example Description

This library contains the API for the Rotary B 2 Click driver to control LEDs states and a rotary encoder position readings.

The demo application is composed of two sections :

Application Init

Initialization of SPI module and log UART. After the driver init, the app executes a default configuration and turn off all LEDs.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    rotaryb2_cfg_t rotaryb2_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.
    rotaryb2_cfg_setup( &rotaryb2_cfg );
    ROTARYB2_MAP_MIKROBUS( rotaryb2_cfg, MIKROBUS_1 );
    if ( SPI_MASTER_ERROR == rotaryb2_init( &rotaryb2, &rotaryb2_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    if ( ROTARYB2_ERROR == rotaryb2_default_cfg ( &rotaryb2 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

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

Application Task

This example demonstrates the use of the Rotary B 2 Click board™. The demo example shows the functionality of a rotary encoder used to control LEDs.

void application_task ( void )
{
    if ( ROTARYB2_OK == rotaryb2_set_led_data( &rotaryb2, led_data ) )
    {
        rotaryb2_switch_detection( );
        rotaryb2_encoder_mechanism( );
    }
}

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.RotaryB2

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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