Beginner
10 min
0

Experience a seamless blend of power and elegance with TB67H481FNG and PIC24HJ256GP610

Powering tomorrow's movements

DC Motor 13 Click with UNI-DS v8

Published Nov 10, 2023

Click board™

DC Motor 13 Click

Development board

UNI-DS v8

Compiler

NECTO Studio

MCU

PIC24HJ256GP610

Enhance your engineering endeavors with our DC motor driver, a solution meticulously crafted to bring efficiency, precision, and innovation to your projects.

A

A

Hardware Overview

How does it work?

DC Motor 13 Click is based on the TB67H481FNG, a dual-channel, H-bridge, brushed DC motor driver from Toshiba Semiconductor. The TB67H481FNG has a current limit function that monitors the current flowing in the motor and performs constant current PWM control. When the motor current reaches the set current value, determined using onboard VREF trimmers (VREFA and VREFB), the TB67H481FNG shifts to Decay mode and annotates the current. Various Decay mode functions are selectable by positioning the SMD jumper, labeled as DECAY, to an appropriate position marked as 0 and 1. Also, Mixed Decay Mode can be selected by removing the JP2 jumper for the board. The TB67H481FNG has a built-in regulator that allows the motor to be driven by a single power supply, provides a motor output voltage rating of around 40V, and has integrated protection mechanisms such as over-current, over-temperature, and under-voltage

lockout for error detection. The setting current value can be adjusted with the torque function (100%, 71%, 38%, or 0%), controlled through the PCA9538A port expander, which establishes communication with the MCU via the I2C serial interface. Lowering the torque setting can suppress the motor current when high torque is unnecessary. In addition to these torque setting pins, with the help of the expander, it is also possible to control some other signals, such as the control signals for selecting the operating mode of the motor driver. These pins, in combination with AI1 and BI1 pins, routed to default positions of CS and PWM pins of the mikroBUS™ socket, enable operational modes like CW, CCW, or short-brake. The PCA9538A also allows choosing the least significant bit (LSB) of its I2C slave address by positioning SMD jumpers labeled as ADDR SEL to an appropriate position marked as 0 and 1, alongside its interrupt feature routed to the INT

pin of the mikroBUS™ socket. Besides, all circuits can be stopped using the Sleep function, routed to default positions of the AN pin of the mikroBUS™ socket, and thus enable power saving mode, while the RST pin provides a general-purpose reset function. The DC Motor 13 Click supports an external power supply for the TB67H481FNG, which can be connected to the input terminal labeled as VM and should be within the range of 8.2V to 44V, while the two brushed or one stepping motor coils can be connected to the terminals labeled as B+, B-, A-, and A+. This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this 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 13 Click hardware overview image

Features overview

Development board

UNI-DS v8 is a development board specially designed for the needs of rapid development of embedded applications. It supports a wide range of microcontrollers, such as different STM32, Kinetis, TIVA, CEC, MSP, PIC, dsPIC, PIC32, and AVR MCUs regardless of their number of pins, and a broad set of unique functions, such as the first-ever embedded debugger/programmer over WiFi. The development board is well organized and designed so that the end-user has all the necessary elements, such as switches, buttons, indicators, connectors, and others, in one place. Thanks to innovative manufacturing technology, UNI-DS v8 provides a fluid and immersive working experience, allowing access anywhere and under any

circumstances at any time. Each part of the UNI-DS v8 development board contains the components necessary for the most efficient operation of the same board. An advanced integrated CODEGRIP programmer/debugger module offers many valuable programming/debugging options, including support for JTAG, SWD, and SWO Trace (Single Wire Output)), and seamless integration with the Mikroe software environment. Besides, it also includes a clean and regulated power supply module for the development board. It can use a wide range of external power sources, including a battery, an external 12V power supply, and a power source via the USB Type-C (USB-C) connector. Communication options such as USB-UART, USB

HOST/DEVICE, CAN (on the MCU card, if supported), and Ethernet is also included. In addition, it also has the well-established mikroBUS™ standard, a standardized socket for the MCU card (SiBRAIN standard), and two display options for the TFT board line of products and character-based LCD. UNI-DS v8 is an integral part of the Mikroe ecosystem for rapid development. Natively supported by Mikroe software tools, it covers many aspects of prototyping and development thanks to a considerable number of different Click boards™ (over a thousand boards), the number of which is growing every day.

UNI-DS v8 horizontal image

Microcontroller Overview

MCU Card / MCU

default

Type

8th Generation

Architecture

dsPIC

MCU Memory (KB)

256

Silicon Vendor

Microchip

Pin count

100

RAM (Bytes)

16384

You complete me!

Accessories

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 50g.cm. 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 13 Click accessories image

Used MCU Pins

mikroBUS™ mapper

Sleep Mode
RB10
AN
Reset
RD9
RST
Motor A Channel Control
RG9
CS
NC
NC
SCK
NC
NC
MISO
NC
NC
MOSI
Power Supply
3.3V
3.3V
Ground
GND
GND
Motor B Channel Control
RD0
PWM
Interupt
RF6
INT
NC
NC
TX
NC
NC
RX
I2C Clock
RA2
SCL
I2C Data
RA3
SDA
Power Supply
5V
5V
Ground
GND
GND
1

Take a closer look

Schematic

DC Motor 13 Click Schematic schematic

Step by step

Project assembly

Fusion for PIC v8 front image hardware assembly

Start by selecting your development board and Click board™. Begin with the UNI-DS v8 as your development board.

Fusion for PIC v8 front image hardware assembly
GNSS2 Click front image hardware assembly
SiBRAIN for PIC32MZ1024EFK144 front image hardware assembly
GNSS2 Click complete accessories setup image hardware assembly
v8 SiBRAIN 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 Compiler Selection Step Image hardware assembly
NECTO Output Selection Step Image hardware assembly
Necto image step 6 hardware assembly
Necto image step 7 hardware assembly
Necto image step 8 hardware assembly
Necto image step 9 hardware assembly
Necto image step 10 hardware assembly
Necto PreFlash Image hardware assembly

Track your results in real time

Application Output

After pressing the "FLASH" button on the left-side panel, it is necessary to open the UART terminal to display the achieved results. By clicking on the Tools icon in the right-hand panel, multiple different functions are displayed, among which is the UART Terminal. Click on the offered "UART Terminal" icon.

UART Application Output Step 1

Once the UART terminal is opened, the window takes on a new form. At the top of the tab are two buttons, one for adjusting the parameters of the UART terminal and the other for connecting the UART terminal. The tab's lower part is reserved for displaying the achieved results. Before connecting, the terminal has a Disconnected status, indicating that the terminal is not yet active. Before connecting, it is necessary to check the set parameters of the UART terminal. Click on the "OPTIONS" button.

UART Application Output Step 2

In the newly opened UART Terminal Options field, we check if the terminal settings are correct, such as the set port and the Baud rate of UART communication. If the data is not displayed properly, it is possible that the Baud rate value is not set correctly and needs to be adjusted to 115200. If all the parameters are set correctly, click on "CONFIGURE".

UART Application Output Step 3

The next step is to click on the "CONNECT" button, after which the terminal status changes from Disconnected to Connected in green, and the data is displayed in the Received data field.

UART Application Output Step 4

Software Support

Library Description

This library contains API for DC Motor 13 Click driver.

Key functions:

  • dcmotor13_set_outa_mode - This function sets the OUTA mode.

  • dcmotor13_set_outb_mode - This function sets the OUTB mode.

  • dcmotor13_set_outa_torque - This function sets the OUTA torque.

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 main.c
 * @brief DCMotor13 Click example
 *
 * # Description
 * This example demonstrates the use of DC Motor 13 click board by driving the motors
 * in both direction in the span of 9 seconds.
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * Initializes the driver and performs the click default configuration which sets the output
 * torque to 100%.
 *
 * ## Application Task
 * Drives the motors in the clockwise direction, then switches to the counter-clockwise direction, 
 * and after that pulls the motors brake with a 3 seconds delay after each change.
 * Each step will be logged on the USB UART where you can track the program flow.
 *
 * @author Stefan Filipovic
 *
 */

#include "board.h"
#include "log.h"
#include "dcmotor13.h"

static dcmotor13_t dcmotor13;
static log_t logger;

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    dcmotor13_cfg_t dcmotor13_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.
    dcmotor13_cfg_setup( &dcmotor13_cfg );
    DCMOTOR13_MAP_MIKROBUS( dcmotor13_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == dcmotor13_init( &dcmotor13, &dcmotor13_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( DCMOTOR13_ERROR == dcmotor13_default_cfg ( &dcmotor13 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
}

void application_task ( void ) 
{
    if ( DCMOTOR13_OK == dcmotor13_set_outa_mode ( &dcmotor13, DCMOTOR13_MODE_CW ) )
    {
        log_printf ( &logger, " OUTA: Clockwise\r\n" );
    }
    if ( DCMOTOR13_OK == dcmotor13_set_outb_mode ( &dcmotor13, DCMOTOR13_MODE_CW ) )
    {
        log_printf ( &logger, " OUTB: Clockwise\r\n\n" );
    }
    Delay_ms ( 3000 );
    if ( DCMOTOR13_OK == dcmotor13_set_outa_mode ( &dcmotor13, DCMOTOR13_MODE_CCW ) )
    {
        log_printf ( &logger, " OUTA: Counter-Clockwise\r\n" );
    }
    if ( DCMOTOR13_OK == dcmotor13_set_outb_mode ( &dcmotor13, DCMOTOR13_MODE_CCW ) )
    {
        log_printf ( &logger, " OUTB: Counter-Clockwise\r\n\n" );
    }
    Delay_ms ( 3000 );
    if ( DCMOTOR13_OK == dcmotor13_set_outa_mode ( &dcmotor13, DCMOTOR13_MODE_SHORT_BRAKE ) )
    {
        log_printf ( &logger, " OUTA: Short brake\r\n" );
    }
    if ( DCMOTOR13_OK == dcmotor13_set_outb_mode ( &dcmotor13, DCMOTOR13_MODE_SHORT_BRAKE ) )
    {
        log_printf ( &logger, " OUTB: Short brake\r\n\n" );
    }
    Delay_ms ( 3000 );
}

void main ( void ) 
{
    application_init( );

    for ( ; ; ) 
    {
        application_task( );
    }
}

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

Additional Support

Resources