Angle 7 Click

Angle 7 Click is a compact add-on board that detects the absolute angular position of a permanent magnet. This board features the AS5600, a programmable Hall-based rotary magnetic position sensor with a high-resolution 12-bit analog or PWM output from ams AG.

Click Product page

Click library

• Author : Stefan Filipovic
• Date : May 2022.
• Type : I2C type

Software Support

We provide a library for the Angle 7 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 7 Click driver.

Standard key functions :

• angle7_cfg_setup Config Object Initialization function.

  void angle7_cfg_setup ( angle7_cfg_t *cfg );

• angle7_init Initialization function.

  err_t angle7_init ( angle7_t *ctx, angle7_cfg_t *cfg );

• angle7_default_cfg Click Default Configuration function.

  err_t angle7_default_cfg ( angle7_t *ctx );

Example key functions :

• angle7_get_status This function reads the status data.

  err_t angle7_get_status ( angle7_t *ctx, uint8_t *status );

• angle7_get_angle This function reads the calculated angle in degrees.

  err_t angle7_get_angle ( angle7_t *ctx, float *angle );

• angle7_get_magnitude This function reads the magnitude data.

  err_t angle7_get_magnitude ( angle7_t *ctx, uint16_t *magnitude );

Example Description

This example demonstrates the use of Angle 7 Click board by reading and displaying the magnet's angular position in degrees and analog voltage output as well as the magnet's status and magnitude.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs the Click default configuration.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    angle7_cfg_t angle7_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.
    angle7_cfg_setup( &angle7_cfg );
    ANGLE7_MAP_MIKROBUS( angle7_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == angle7_init( &angle7, &angle7_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    if ( ANGLE7_ERROR == angle7_default_cfg ( &angle7 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

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

Application Task

Reads the magnet's angular position in degrees and analog voltage output as well as the magnet's status and magnitude and displays the results on the USB UART approximately every 100ms.

void application_task ( void )
{
    float voltage, raw_angle, angle;
    uint16_t magnitude;
    uint8_t status;
    if ( ADC_ERROR != angle7_read_an_pin_voltage ( &angle7, &voltage ) ) 
    {
        log_printf( &logger, " AN voltage: %.3f V\r\n", voltage );
    }
    if ( ANGLE7_OK == angle7_get_angle ( &angle7, &angle ) )
    {
        log_printf ( &logger, " Angle: %.2f Degrees\r\n", angle );
    }
    if ( ANGLE7_OK == angle7_get_magnitude ( &angle7, &magnitude ) )
    {
        log_printf ( &logger, " Magnitude: %u\r\n", magnitude );
    }
    if ( ANGLE7_OK == angle7_get_status ( &angle7, &status ) )
    {
        log_printf ( &logger, " Status:" );
        if ( status & ANGLE7_STATUS_MAGNET_DETECTED )
        {
            log_printf ( &logger, " Magnet Detected \r\n Magnet Strength:" );
            if ( status & ANGLE7_STATUS_MAGNET_TOO_STRONG )
            {
                log_printf ( &logger, " Too Strong \r\n\n" );
            }
            else if ( status & ANGLE7_STATUS_MAGNET_TOO_WEAK )
            {
                log_printf ( &logger, " Too Weak \r\n\n" );
            }
            else
            {
                log_printf ( &logger, " Good \r\n\n" );
            }
        }
        else
        {
            log_printf ( &logger, " Magnet Not Detected \r\n\n" );
        }
    }
    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.Angle7

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.