angle6

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Angle 6 Click

Angle 6 Click is a compact add-on board that detects the absolute angular position of a permanent magnet, typically a diametrically magnetized cylinder on a rotating shaft. This board features the MAQ470GQE, a 12-bit contactless angle sensor with PWM output from Monolithic Power Systems. It supports a wide range of magnetic field strengths and spatial configurations, with both end-of-shaft and off-axis (side-shaft mounting), supported configurations. Fast data acquisition and processing provides accurate angle measurement at speeds from 0 to 60,000 rpm, alongside magnetic field strength detection with programmable thresholds.

Click Product page

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Click library

• Author : Stefan Filipovic
• Date : Dec 2021.
• Type : SPI type

Software Support

We provide a library for the Angle 6 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 Angle 6 Click driver.

Standard key functions :

• angle6_cfg_setup Config Object Initialization function.

void angle6_cfg_setup ( angle6_cfg_t *cfg );

• angle6_init Initialization function.

err_t angle6_init ( angle6_t *ctx, angle6_cfg_t *cfg );

• angle6_default_cfg Click Default Configuration function.

err_t angle6_default_cfg ( angle6_t *ctx );

Example key functions :

• angle6_write_register This function writes a data byte to the selected register by using SPI serial interface.

err_t angle6_write_register ( angle6_t *ctx, uint8_t reg, uint8_t data_in );

• angle6_read_register This function reads a data byte from the selected register by using SPI serial interface.

err_t angle6_read_register ( angle6_t *ctx, uint8_t reg, uint8_t *data_out );

• angle6_read_angle This function reads raw angle data and converts it to degrees.

err_t angle6_read_angle ( angle6_t *ctx, float *angle );

Example Description

This example demonstrates the use of Angle 6 Click board by reading and displaying the magnet's angular position in degrees.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs the Click default configuration which sets the rotation direction to clockwise.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    angle6_cfg_t angle6_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.
    angle6_cfg_setup( &angle6_cfg );
    ANGLE6_MAP_MIKROBUS( angle6_cfg, MIKROBUS_1 );
    if ( SPI_MASTER_ERROR == angle6_init( &angle6, &angle6_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( ANGLE6_ERROR == angle6_default_cfg ( &angle6 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
}

Application Task

Reads the magnet's angular position in degrees and displays the results on the USB UART approximately every 100ms.

void application_task ( void )
{
    float angle = 0;
    if ( ANGLE6_OK == angle6_read_angle ( &angle6, &angle ) )
    {
        log_printf ( &logger, " Angle: %.2f Deg \r\n\n", angle );
        Delay_ms ( 100 );
    }
}

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.Angle6

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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