capwheel2

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Cap Wheel 2 Click

Cap Wheel 2 Click demo application is developed using the NECTO Studio, ensuring compatibility with mikroSDK's open-source libraries and tools. Designed for plug-and-play implementation and testing, the demo is fully compatible with all development, starter, and mikromedia boards featuring a mikroBUS™ socket.

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Click Library

• Author : MikroE Team
• Date : Dec 2019.
• Type : I2C type

Software Support

Example Description

This example sets basic device configuration; Contains function for waiting RDY(INT) pin, function for getting RDY(INT) pin state, function for I2C read and write with waiting for RDY(INT) pin and without waiting for RDY(INT) pin.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.CapWheel2

Example Key Functions

• capwheel2_cfg_setup Config Object Initialization function.

void capwheel2_cfg_setup ( capwheel2_cfg_t *cfg );

• capwheel2_init Initialization function.

err_t capwheel2_init ( capwheel2_t *ctx, capwheel2_cfg_t *cfg );

• capwheel2_default_cfg Click Default Configuration function.

void capwheel2_default_cfg ( capwheel2_t *ctx );

• capwheel2_int_get This function gets state of INT pin.

uint8_t capwheel2_int_get ( capwheel2_t *ctx );

• capwheel2_wait_for_rdy This function waits for RDY pin to transition from HIGH to LOW state.

uint8_t capwheel2_wait_for_rdy ( capwheel2_t *ctx );

Application Init

Initializes CAP Wheel 2 device

void application_init ( void )
{
    log_cfg_t log_cfg;
    capwheel2_cfg_t cfg;

    /** 
     * 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.

    capwheel2_cfg_setup( &cfg );
    CAPWHEEL2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    capwheel2_init( &capwheel2, &cfg );
}

Application Task

Executes one of three 'capwheel2_get_xxx_task( )' functions.

void application_task ( void )
{
    capwheel2_get_channels_task( );
}

Note

 
Additional Functions :

- capwheel2_error( ) - Logs error message and blocks code execution in endless while loop
- capwheel2_get_channels_task( ) - Logs active channels in touch and halt bytes ( channels: CH0 - proximity channel, CH1, CH2, CH3 )
- capwheel2_get_gesture_task( ) - Logs active gestures ( gestures: tap, touch, proximity )
- capwheel2_get_channel_counts_task( ) - Logs channel count values for each channel
- capwheel2_get_channels_touch( ) - Logs touch byte active channels ( exectuted by 'capwheel2_get_channels_task( )' function )
- capwheel2_get_channels_halt( ) - Logs halt byte active channels ( exectuted by 'capwheel2_get_channels_task( )' function )

Application Output

This Click board can be interfaced and monitored in two ways:

• Application Output - Use the "Application Output" window in Debug mode for real-time data monitoring. Set it up properly by following this tutorial.
• UART Terminal - Monitor data via the UART Terminal using a USB to UART converter. For detailed instructions, check out this tutorial.

Additional Notes and Information

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

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