dcmotor9  2.0.0.0
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DC Motor 9 click

DC Motor 9 Click is a brushed DC motor driver with the current limiting and current sensing. It is based on the DRV8871, an integrated H-Bridge driver IC, optimized for motor driving applications. It can be operated by two logic signals, allowing to drive the connected motor in two different ways: it can use fixed logic levels for the direction control, or it can be controlled by a PWM signal, offering an additional speed control option. The DRV8871 also contains a set of protection features, offering a very high level of reliability. Besides driving capabilities, DC Motor 9 click can also sense current consumption at its output.

click Product page


Click library

  • Author : MikroE Team
  • Date : sep 2020.
  • Type : PWM type

Software Support

We provide a library for the DcMotor9 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 DcMotor9 Click driver.

Standard key functions :

Example key functions :

  • This function read ADC data.

    dcmotor9_data_t dcmotor9_generic_read ( dcmotor9_t *ctx );

  • This function starts PWM module.

    void dcmotor9_pwm_start ( dcmotor9_t *ctx );

  • This function sets the PWM duty cycle.

    void dcmotor9_set_duty_cycle ( dcmotor9_t *ctx, float duty_cycle );

Examples Description

DC Motor 9 Click is a brushed DC motor driver with the current limiting and current sensing. It can be operated by two logic signals, allowing to drive the connected motor in two different ways: it can use fixed logic levels for the direction control, or it can be controlled by a PWM signal, offering an additional speed control option.

The demo application is composed of two sections :

Application Init

Initializes GPIO, PWM and logger and enables the click board.

void application_init ( void )
{
log_cfg_t log_cfg;
dcmotor9_cfg_t dcmotor9_cfg;
// Logger initialization.
LOG_MAP_USB_UART( log_cfg );
log_cfg.level = LOG_LEVEL_DEBUG;
log_cfg.baud = 9600;
log_init( &logger, &log_cfg );
log_info( &logger, "---- Application Init ----" );
// Click initialization.
dcmotor9_cfg_setup( &dcmotor9_cfg );
DCMOTOR9_MAP_MIKROBUS( dcmotor9_cfg, MIKROBUS_1 );
if ( dcmotor9_init( &dcmotor9, &dcmotor9_cfg ) == PWM_ERROR )
{
log_info( &logger, "---- Application Init Error ----" );
log_info( &logger, "---- Please, run program again ----" );
for ( ; ; );
}
dcmotor9_pwm_start( &dcmotor9 );
dcmotor9_enable( &dcmotor9 );
Delay_ms( 1000 );
log_info( &logger, "---- Application Init Done ----" );
}

Application Task

This function drives the motor in both directions increasing and decreasing the speed of the motor. Results are being sent to the Usart Terminal where you can track their changes.

void application_task ( void )
{
clockwise( );
pull_brake( );
counter_clockwise( );
high_z( );
}

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.DcMotor9

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.


dcmotor9_enable
void dcmotor9_enable(dcmotor9_t *ctx)
Enable the engine function.
application_task
void application_task(void)
Definition: main.c:138
dcmotor9_cfg_setup
void dcmotor9_cfg_setup(dcmotor9_cfg_t *cfg)
Configuration Object Init Setup function.
dcmotor9_init
err_t dcmotor9_init(dcmotor9_t *ctx, dcmotor9_cfg_t *cfg)
Initialization function.
DCMOTOR9_MAP_MIKROBUS
#define DCMOTOR9_MAP_MIKROBUS(cfg, mikrobus)
Definition: dcmotor9.h:52
dcmotor9_pwm_start
void dcmotor9_pwm_start(dcmotor9_t *ctx)
Start PWM module.
application_init
void application_init(void)
Definition: main.c:106
dcmotor9_cfg_t
Click configuration structure definition.
Definition: dcmotor9.h:111