dcmotor4  2.0.0.0
Main Page

DC Motor 4 Click

DC MOTOR 4 Click is capable of driving motors with a supply voltage from 4.5V to 36V. It carries the MAX14870 motor driver from Maxim Integrated.

Click Product page


Click library

  • Author : Nikola Peric
  • Date : Feb 2022.
  • Type : PWM type

Software Support

We provide a library for the DcMotor4 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 form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for DcMotor4 Click driver.

Standard key functions :

Example key functions :

  • Generic sets PWM duty cycle.

    void dcmotor4_set_duty_cycle ( dcmotor4_t *ctx, pwm_data_t duty_cycle );

  • Stop PWM module.

    void dcmotor4_pwm_stop ( dcmotor4_t *ctx );

  • Start PWM module.

    void dcmotor4_pwm_start ( dcmotor4_t *ctx );

Examples Description

This library contains API for the DC Motor 4 Click driver. Application change the speed and direction.

The demo application is composed of two sections :

Application Init

Initialization driver enable's - GPIO,

set the direction-control of the motor forward movement, PWM initialization, set PWM duty cycle and PWM frequency, enable the motor, start PWM.

{
log_cfg_t log_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, "---- Application Init ----" );
Delay_ms ( 100 );
// Click initialization.
DCMOTOR4_MAP_MIKROBUS( cfg, MIKROBUS_1 );
Delay_ms ( 100 );
dcmotor4_init( &dcmotor4, &cfg );
dcmotor4_pwm_start( &dcmotor4 );
}

Application Task

This is an example that demonstrates the use of the DC Motor 4 Click board. DC Motor 4 Click communicates with register via PWM interface. It shows moving in the Clockwise direction from slow to fast speed and from fast to slow speed, then rotating Counter Clockwise, Results are being sent to the Usart Terminal where you can track their changes.

{
static int8_t duty_cnt = 1;
static int8_t duty_inc = 1;
float duty = duty_cnt / 10.0;
if ( dcmotor_direction == 1 )
{
dcmotor4_run_clockwise ( &dcmotor4 );
log_printf( &logger, "> CLOCKWISE <\r\n" );
}
else
{
log_printf( &logger, "> COUNTER CLOCKWISE <\r\n" );
}
dcmotor4_set_duty_cycle ( &dcmotor4, duty );
dcmotor4_enable_motor ( &dcmotor4 );
log_printf( &logger, "> Duty: %d%%\r\n", ( uint16_t )( duty_cnt * 10 ) );
Delay_ms ( 500 );
if ( 10 == duty_cnt )
{
duty_inc = -1;
}
else if ( 0 == duty_cnt )
{
duty_inc = 1;
if ( dcmotor_direction == 1 )
{
}
else
{
}
}
duty_cnt += duty_inc;
dcmotor4_disable_motor ( &dcmotor4 );
}

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.DcMotor4

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. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.


application_init
void application_init()
Definition: main.c:41
dcmotor4_set_duty_cycle
void dcmotor4_set_duty_cycle(dcmotor4_t *ctx, float duty_cycle)
Generic sets PWM duty cycle.
dcmotor4_cfg_setup
void dcmotor4_cfg_setup(dcmotor4_cfg_t *cfg)
Config Object Initialization function.
dcmotor4_enable_motor
void dcmotor4_enable_motor(dcmotor4_t *ctx)
Enable motor.
dcmotor_direction
uint8_t dcmotor_direction
Definition: main.c:37
dcmotor4_run_clockwise
void dcmotor4_run_clockwise(dcmotor4_t *ctx)
Run clockwise.
dcmotor4_pwm_start
void dcmotor4_pwm_start(dcmotor4_t *ctx)
Start PWM module.
application_task
void application_task()
Definition: main.c:69
dcmotor4_disable_motor
void dcmotor4_disable_motor(dcmotor4_t *ctx)
Disable motor.
dcmotor4_init
DCMOTOR4_RETVAL dcmotor4_init(dcmotor4_t *ctx, dcmotor4_cfg_t *cfg)
Initialization function.
dcmotor4_cfg_t
Click configuration structure definition.
Definition: dcmotor4.h:126
dcmotor4_run_counter_clockwise
void dcmotor4_run_counter_clockwise(dcmotor4_t *ctx)
Run counter clockwise.
DCMOTOR4_MAP_MIKROBUS
#define DCMOTOR4_MAP_MIKROBUS(cfg, mikrobus)
Definition: dcmotor4.h:66