10 min

Customize DC motor's performance with TB6593FNG and TM4C129XNCZAD

Smooth control for efficient performance

DC MOTOR 2 Click with UNI Clicker

Published Jun 08, 2023

Click board™

DC MOTOR 2 Click

Development board

UNI Clicker


NECTO Studio



Upgrade your engineering prowess, maximize efficiency, and unlock the "full-bridge" potential of your motors



Hardware Overview

How does it work?

DC MOTOR 2 Click is based on the TB6593FNG, full-bridge brushed DC motor driver from Toshiba Semiconductor. The TB6593FNG comes in a configuration with an output transistor in LD MOS structure with low on-resistance (0.35Ω typical with 5V power supply). It has a wide operating voltage range with an output current capacity of 1A maximum and control functions, including motor-related and built-in protection circuits such as thermal shutdown and low voltage detecting. This Click board™ is a PWM-controlled type with the ability for motor control through several pins of the mikroBUS™ socket. The PWM signal of the mikroBUS™ socket drives the motor while the IN1

and IN2 pins, routed on the CS and RST pins of the mikroBUS™ socket, provide binary direction signals that set the direction of the motor (clockwise or counterclockwise) or apply stop or short brake functions. Stop mode cuts off the power supply, so the motor continues spinning until it runs out of momentum, while a short break brings it to an abrupt stop. Alongside the PWM pin from the mikroBUS™ socket, used to drive a DC motor, this Click board™ also has a Standby pin labeled as SLP and routed to the INT pin of the mikroBUS™ socket to optimize power consumption used for power saving purposes. DC MOTOR 2 Click supports an external power supply

for the TB6593FNG, which can be connected to the input terminal labeled as VM and should be within the range of 2.5V to 13V, while the DC motor coils can be connected to the terminals labeled as OUT1 and OUT2. This Click board™ can operate with both 3.3V and 5V logic voltage levels selected via the PWR SEL jumper. This way, it is allowed for both 3.3V and 5V capable MCUs to use the communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.

DC MOTOR 2 Click hardware overview image

Features overview

Development board

UNI Clicker is a compact development board designed as a complete solution that brings the flexibility of add-on Click boards™ to your favorite microcontroller, making it a perfect starter kit for implementing your ideas. It supports a wide range of microcontrollers, such as different ARM, PIC32, dsPIC, PIC, and AVR from various vendors like Microchip, ST, NXP, and TI (regardless of their number of pins), four mikroBUS™ sockets for Click board™ connectivity, a USB connector, LED indicators, buttons, a debugger/programmer connector, and two 26-pin headers for interfacing with external electronics. Thanks to innovative manufacturing technology, it allows you to build

gadgets with unique functionalities and features quickly. Each part of the UNI Clicker development kit contains the components necessary for the most efficient operation of the same board. In addition to the possibility of choosing the UNI Clicker programming method, using a third-party programmer or CODEGRIP/mikroProg connected to onboard JTAG/SWD header, the UNI Clicker board also includes a clean and regulated power supply module for the development kit. It provides two ways of board-powering; through the USB Type-C (USB-C) connector, where onboard voltage regulators provide the appropriate voltage levels to each component on the board, or using a Li-Po/Li

Ion battery via an onboard battery connector. All communication methods that mikroBUS™ itself supports are on this board (plus USB HOST/DEVICE), including the well-established mikroBUS™ socket, a standardized socket for the MCU card (SiBRAIN standard), and several user-configurable buttons and LED indicators. UNI Clicker is an integral part of the Mikroe ecosystem, allowing you to create a new application in minutes. Natively supported by Mikroe software tools, it covers many aspects of prototyping thanks to a considerable number of different Click boards™ (over a thousand boards), the number of which is growing every day.

UNI clicker double image

Microcontroller Overview

MCU Card / MCU



8th Generation


ARM Cortex-M4

MCU Memory (KB)


Silicon Vendor

Texas Instruments

Pin count


RAM (Bytes)


You complete me!


DC Gear Motor - 430RPM (3-6V) represents an all-in-one combination of a motor and gearbox, where the addition of gear leads to a reduction of motor speed while increasing the torque output. This gear motor has a spur gearbox, making it a highly reliable solution for applications with lower torque and speed requirements. The most critical parameters for gear motors are speed, torque, and efficiency, which are, in this case, 520RPM with no load and 430RPM at maximum efficiency, alongside a current of 60mA and a torque of Rated for a 3-6V operational voltage range and clockwise/counterclockwise rotation direction, this motor represents an excellent solution for many functions initially performed by brushed DC motors in robotics, medical equipment, electric door locks, and much more.

DC MOTOR 2 Click accessories image

Used MCU Pins

mikroBUS™ mapper

Motor Control 2
Motor Control 1
Power Supply
PWM Signal
Standby Mode
Power Supply

Take a closer look


DC MOTOR 2 Click Schematic schematic

Step by step

Project assembly

UNI Clicker front image hardware assembly

Start by selecting your development board and Click board™. Begin with the UNI Clicker as your development board.

UNI Clicker front image hardware assembly
GNSS2 Click front image hardware assembly
SiBRAIN for STM32F745VG front image hardware assembly
Prog-cut hardware assembly
GNSS2 Click complete accessories setup image hardware assembly
UNI Clicker Access MB 1 - upright/background hardware assembly
Necto image step 2 hardware assembly
Necto image step 3 hardware assembly
Necto image step 4 hardware assembly
Necto image step 5 hardware assembly
Necto image step 6 hardware assembly
Necto image step 7 hardware assembly
Necto No Display image step 8 hardware assembly
Necto image step 9 hardware assembly
Necto image step 10 hardware assembly
Debug Image Necto Step hardware assembly

Track your results in real time

Application Output

After loading the code example, pressing the "DEBUG" button builds and programs it on the selected setup.

Application Output Step 1

After programming is completed, a header with buttons for various actions available in the IDE appears. By clicking the green "PLAY "button, we start reading the results achieved with Click board™.

Application Output Step 3

Upon completion of programming, the Application Output tab is automatically opened, where the achieved result can be read. In case of an inability to perform the Debug function, check if a proper connection between the MCU used by the setup and the CODEGRIP programmer has been established. A detailed explanation of the CODEGRIP-board connection can be found in the CODEGRIP User Manual. Please find it in the RESOURCES section.

Application Output Step 4

Software Support

Library Description

This library contains API for DC MOTOR 2 Click driver.

Key functions:

  • dcmotor2_spin_counter_clockwise - This function sets the IN1/IN2 pins to 0/1 and makes the motor spin counter clockwise.

  • dcmotor2_spin_clockwise - This function sets the IN1/IN2 pins to 1/0 and makes the motor spin clockwise.

  • dcmotor2_pull_brake - This function sets the IN1/IN2 pins to 1/1 and forces the motor to break.

  • dcmotor2_stop_motor - This function sets the IN1/IN2 pins to 0/0 and stops the motor completely.

Open Source

Code example

This example can be found in NECTO Studio. Feel free to download the code, or you can copy the code below.

 * \file 
 * \brief DcMotor2 Click example
 * # Description
 * This library contains API for the DC Motor 2 Click driver.
 * This example showcases how to initialize and use the DC Motor 2 click. The click contains a 
 * Driver IC for DC motors which can spin the motor clockwise, counter-clockwise, break it and
 * completely stop the motor. The example needs a DC motor and a power supply in order to work.
 * The demo application is composed of two sections :
 * ## Application Init 
 * This function initializes and configures the logger and click modules.
 * ## Application Task  
 * This is an example that demonstrates the use of the DC Motor 2 Click board.
 * DC Motor 2 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.
 * \author Nikola Peric
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "log.h"
#include "dcmotor2.h"

// ------------------------------------------------------------------ VARIABLES

static dcmotor2_t dcmotor2;
static log_t logger;
uint8_t dcmotor_direction = 1;

// ------------------------------------------------------ APPLICATION FUNCTIONS

void application_init ( )
    log_cfg_t log_cfg;
    dcmotor2_cfg_t cfg;

     * 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 ----" );
    Delay_ms( 100 );

    //  Click initialization.

    dcmotor2_cfg_setup( &cfg );
    Delay_ms( 100 );
    dcmotor2_init( &dcmotor2, &cfg );
    dcmotor2_pwm_start( &dcmotor2 );
    Delay_ms( 1000 );
    log_info( &logger, "---- Application Task ----" );

void application_task ( )
    static int8_t duty_cnt = 1;
    static int8_t duty_inc = 1;
    float duty = duty_cnt / 10.0;

    if ( dcmotor_direction == 1 )
        dcmotor2_pull_brake ( &dcmotor2 );
        dcmotor2_spin_clockwise ( &dcmotor2 );
        log_printf( &logger, "> CLOCKWISE <\r\n" );
        dcmotor2_enable_motor ( &dcmotor2 );
        dcmotor2_pull_brake ( &dcmotor2 );
        dcmotor2_spin_counter_clockwise ( &dcmotor2 );
        log_printf( &logger, "> COUNTER CLOCKWISE <\r\n" );
        dcmotor2_enable_motor ( &dcmotor2 );

    dcmotor2_set_duty_cycle ( &dcmotor2, duty );
    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 )
            dcmotor_direction = 0;
        else if ( dcmotor_direction == 0 )
            dcmotor_direction = 1;
    duty_cnt += duty_inc;


void main ( )
    application_init( );

    for ( ; ; )
        application_task( );

// ------------------------------------------------------------------------ END

Additional Support