stepper7  2.1.0.0
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Stepper 7 click

Stepper 7 click is a bipolar step motor driver. It features an H-bridge bipolar step motor driver, which supports full and half step control modes. Stepper 7 click also carries a port expander so that the communication can be done with a minimal number of pins, through the mikroBUS™ SPI bus.

click Product page


Click library

  • Author : Stefan Filipovic
  • Date : Feb 2024.
  • Type : SPI type

Software Support

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

Standard key functions :

Example key functions :

  • stepper7_set_direction This function sets the motor direction to clockwise or counter-clockwise in ctx->direction.
    void stepper7_set_direction ( stepper7_t *ctx, uint8_t dir );
  • stepper7_set_step_mode This function sets the step mode resolution settings in ctx->step_mode.
    void stepper7_set_step_mode ( stepper7_t *ctx, uint8_t mode );
  • stepper7_drive_motor This function drives the motor for the specific number of steps at the selected speed.
    err_t stepper7_drive_motor ( stepper7_t *ctx, uint32_t steps, uint8_t speed );

Example Description

This example demonstrates the use of the Stepper 7 click board by driving the motor in both directions for a desired number of steps.

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;
stepper7_cfg_t stepper7_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
stepper7_cfg_setup( &stepper7_cfg );
STEPPER7_MAP_MIKROBUS( stepper7_cfg, MIKROBUS_1 );
if ( SPI_MASTER_ERROR == stepper7_init( &stepper7, &stepper7_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( STEPPER7_ERROR == stepper7_default_cfg ( &stepper7 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Drives the motor clockwise for 200 full steps and then counter-clockiwse for 200 half

steps and 800 1/8th steps with 2 seconds delay on driving mode change. All data is being logged on the USB UART where you can track the program flow.

void application_task ( void )
{
log_printf ( &logger, " Move 200 full steps clockwise, speed: slow\r\n\n" );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
log_printf ( &logger, " Move 200 half steps counter-clockwise, speed: medium\r\n\n" );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
log_printf ( &logger, " Move 800 1/8th steps counter-clockwise, speed: fast\r\n\n" );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
}

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.Stepper7

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.


STEPPER7_ERROR
@ STEPPER7_ERROR
Definition: stepper7.h:241
stepper7_set_step_mode
void stepper7_set_step_mode(stepper7_t *ctx, uint8_t mode)
Stepper 7 set step mode function.
STEPPER7_SPEED_MEDIUM
#define STEPPER7_SPEED_MEDIUM
Definition: stepper7.h:145
stepper7_cfg_t
Stepper 7 Click configuration object.
Definition: stepper7.h:217
stepper7_set_direction
void stepper7_set_direction(stepper7_t *ctx, uint8_t dir)
Stepper 7 set direction function.
stepper7_t
Stepper 7 Click context object.
Definition: stepper7.h:198
application_task
void application_task(void)
Definition: main.c:66
STEPPER7_SPEED_SLOW
#define STEPPER7_SPEED_SLOW
Definition: stepper7.h:144
stepper7_cfg_setup
void stepper7_cfg_setup(stepper7_cfg_t *cfg)
Stepper 7 configuration object setup function.
STEPPER7_MODE_HALF_STEP
#define STEPPER7_MODE_HALF_STEP
Definition: stepper7.h:136
STEPPER7_MAP_MIKROBUS
#define STEPPER7_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: stepper7.h:183
STEPPER7_MODE_FULL_STEP
#define STEPPER7_MODE_FULL_STEP
Stepper 7 step resolution setting.
Definition: stepper7.h:135
stepper7_init
err_t stepper7_init(stepper7_t *ctx, stepper7_cfg_t *cfg)
Stepper 7 initialization function.
STEPPER7_SPEED_FAST
#define STEPPER7_SPEED_FAST
Definition: stepper7.h:146
application_init
void application_init(void)
Definition: main.c:30
STEPPER7_MODE_1_OVER_8_STEP
#define STEPPER7_MODE_1_OVER_8_STEP
Definition: stepper7.h:137
stepper7_drive_motor
err_t stepper7_drive_motor(stepper7_t *ctx, uint32_t steps, uint8_t speed)
Stepper 7 driver motor function.
STEPPER7_DIR_CW
#define STEPPER7_DIR_CW
Stepper 7 direction setting.
Definition: stepper7.h:121
stepper7_default_cfg
err_t stepper7_default_cfg(stepper7_t *ctx)
Stepper 7 default configuration function.
STEPPER7_DIR_CCW
#define STEPPER7_DIR_CCW
Definition: stepper7.h:122