Beginner
10 min

Achieve optimal heat management of electronic systems with DRV8213 motor driver, MF25060V2-1000U-A99 cooling fan, and ATmega328P

Compact cooling solution for managing heat in electronic systems

Cooler Click with Arduino UNO Rev3

Published May 07, 2024

Click board™

Cooler Click

Dev. board

Arduino UNO Rev3

Compiler

NECTO Studio

MCU

ATmega328P

Stop electronics overheating! Add efficient cooling with this mini air conditioner.

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Hardware Overview

How does it work?

Cooler Click is based on the DRV8213, an advanced brushless DC motor driver from Texas Instruments, as its core component. This innovative board integrates a miniature temperature sensor, TMP007, and a cooling fan, MF25060V2-1000U-A99, right on its surface, making it a ready-to-go cooling solution. It's perfectly suited for use in environments prone to overheating, such as server rack cooling, embedded systems and IoT devices, development board prototyping, gaming consoles and PC cooling, automotive electronics, medical equipment cooling, or similar applications, where continuous cooling is essential. The DRV8213 is a comprehensive motor driver featuring an integrated full-bridge driver with current sensing and regulation capabilities and a unique current sense output. It's designed for efficiency, using a 2-pin PWM interface for motor speed control through the

IN1 and IN2 pins on the mikroBUS™ socket, covering a wide PWM frequency range from 0 to 100kHz. Notably, its auto-sleep mode reduces the need for additional GPIO connections for sleep or turn-off functions by automatically entering a low-power mode when not in use. The DRV8213 is also enriched with several protection features, such as undervoltage lockout, overcurrent protection, and overtemperature shutdown, ensuring reliable operation under various conditions. The TMP007 sensor, another onboard component from Texas Instruments, employs infrared thermopile technology to measure temperatures without direct contact with the object. This capability accurately monitors the surrounding temperature where the Click board™ is placed. The sensor's output is digitized and processed along with the die temperature to compute the object temperature. It

uses an I2C interface for communication with the host MCU and an alert function via the ALR pin of the mikroBUS™ socket for temperature exceedance notifications. Complementing these components is the MF25060V2-1000U-A99 fan, a high-performance cooling fan operating on a 5VDC supply capable of reaching speeds up to 10,000 RPM. This fan is essential for dissipating heat efficiently, ensuring the system remains cool under operation. 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.

Cooler Click hardware overview image

Features overview

Development board

Arduino UNO is a versatile microcontroller board built around the ATmega328P chip. It offers extensive connectivity options for various projects, featuring 14 digital input/output pins, six of which are PWM-capable, along with six analog inputs. Its core components include a 16MHz ceramic resonator, a USB connection, a power jack, an

ICSP header, and a reset button, providing everything necessary to power and program the board. The Uno is ready to go, whether connected to a computer via USB or powered by an AC-to-DC adapter or battery. As the first USB Arduino board, it serves as the benchmark for the Arduino platform, with "Uno" symbolizing its status as the

first in a series. This name choice, meaning "one" in Italian, commemorates the launch of Arduino Software (IDE) 1.0. Initially introduced alongside version 1.0 of the Arduino Software (IDE), the Uno has since become the foundational model for subsequent Arduino releases, embodying the platform's evolution.

Arduino UNO Rev3 double side image

Microcontroller Overview

MCU Card / MCU

default

Architecture

AVR

MCU Memory (KB)

32

Silicon Vendor

Microchip

Pin count

28

RAM (Bytes)

2048

You complete me!

Accessories

Click Shield for Arduino UNO has two proprietary mikroBUS™ sockets, allowing all the Click board™ devices to be interfaced with the Arduino UNO board without effort. The Arduino Uno, a microcontroller board based on the ATmega328P, provides an affordable and flexible way for users to try out new concepts and build prototypes with the ATmega328P microcontroller from various combinations of performance, power consumption, and features. The Arduino Uno has 14 digital input/output pins (of which six can be used as PWM outputs), six analog inputs, a 16 MHz ceramic resonator (CSTCE16M0V53-R0), a USB connection, a power jack, an ICSP header, and reset button. Most of the ATmega328P microcontroller pins are brought to the IO pins on the left and right edge of the board, which are then connected to two existing mikroBUS™ sockets. This Click Shield also has several switches that perform functions such as selecting the logic levels of analog signals on mikroBUS™ sockets and selecting logic voltage levels of the mikroBUS™ sockets themselves. Besides, the user is offered the possibility of using any Click board™ with the help of existing bidirectional level-shifting voltage translators, regardless of whether the Click board™ operates at a 3.3V or 5V logic voltage level. Once you connect the Arduino UNO board with our Click Shield for Arduino UNO, you can access hundreds of Click boards™, working with 3.3V or 5V logic voltage levels.

Click Shield for Arduino UNO accessories 1 image

Used MCU Pins

mikroBUS™ mapper

Current Monitor
PC0
AN
Fan Driver Control 2
PD2
RST
ID COMM
PB2
CS
NC
NC
SCK
NC
NC
MISO
NC
NC
MOSI
Power Supply
3.3V
3.3V
Ground
GND
GND
Fan Driver Control 1
PD6
PWM
Alert Interrupt
PC3
INT
NC
NC
TX
NC
NC
RX
I2C Clock
PC5
SCL
I2C Data
PC4
SDA
Power Supply
5V
5V
Ground
GND
GND
1

Take a closer look

Click board™ Schematic

Cooler Click Schematic schematic

Step by step

Project assembly

Click Shield for Arduino UNO front image hardware assembly

Start by selecting your development board and Click board™. Begin with the Arduino UNO Rev3 as your development board.

Click Shield for Arduino UNO front image hardware assembly
Arduino UNO Rev3 front image hardware assembly
Barometer 13 Click front image hardware assembly
Prog-cut hardware assembly
Arduino UNO Rev3 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
Arduino UNO MCU Step 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

1. Application Output - In Debug mode, the 'Application Output' window enables real-time data monitoring, offering direct insight into execution results. Ensure proper data display by configuring the environment correctly using the provided tutorial.

2. UART Terminal - Use the UART Terminal to monitor data transmission via a USB to UART converter, allowing direct communication between the Click board™ and your development system. Configure the baud rate and other serial settings according to your project's requirements to ensure proper functionality. For step-by-step setup instructions, refer to the provided tutorial.

3. Plot Output - The Plot feature offers a powerful way to visualize real-time sensor data, enabling trend analysis, debugging, and comparison of multiple data points. To set it up correctly, follow the provided tutorial, which includes a step-by-step example of using the Plot feature to display Click board™ readings. To use the Plot feature in your code, use the function: plot(*insert_graph_name*, variable_name);. This is a general format, and it is up to the user to replace 'insert_graph_name' with the actual graph name and 'variable_name' with the parameter to be displayed.

Software Support

Library Description

This library contains API for Cooler Click driver.

Key functions:

  • cooler_get_object_temperature - This function reads the object's temperature data in degrees Celsius.

  • cooler_set_out_state - This function controls the operation of the cooler - on/off.

Open Source

Code example

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

/*!
 * @file main.c
 * @brief Cooler Click Example.
 *
 * # Description
 * This example demonstrates the use of the Cooler click board 
 * by reading the target object temperature and controlling the cooler.
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * The initialization of the I2C module, log UART, and additional pins.
 * After the driver init, the app executes a default configuration.
 *
 * ## Application Task
 * The demo application measures the temperature of the target object in degrees Celsius 
 * and enables a cooler if the temperature exceeds the temperature high limit value.
 * Results are being sent to the UART Terminal, where you can track their changes.
 *
 * @author Nenad Filipovic
 *
 */

#include "board.h"
#include "log.h"
#include "cooler.h"

// Object temperature high limit
#define COOLER_TEMP_HIGH_LIMIT    30.0

static cooler_t cooler;   /**< Cooler Click driver object. */
static log_t logger;    /**< Logger object. */

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    cooler_cfg_t cooler_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.
    cooler_cfg_setup( &cooler_cfg );
    COOLER_MAP_MIKROBUS( cooler_cfg, MIKROBUS_1 );
    err_t init_flag = cooler_init( &cooler, &cooler_cfg );
    if ( ( ADC_ERROR == init_flag ) || ( I2C_MASTER_ERROR == init_flag ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( COOLER_ERROR == cooler_default_cfg ( &cooler ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
}

void application_task ( void ) 
{
    float temperature = 0;
    if ( COOLER_OK == cooler_get_object_temperature( &cooler, &temperature ) )
    {
        log_printf( &logger, " Temperature: %.2f degC\r\n", temperature );
        log_printf( &logger, " Cooler: " );
        if ( COOLER_TEMP_HIGH_LIMIT < temperature )
        {
            if ( COOLER_OK == cooler_set_out_state( &cooler, COOLER_ENABLE ) )
            {
                log_printf( &logger, " Enabled.\r\n\n" );
            }
        }
        else
        {
            if ( COOLER_OK == cooler_set_out_state( &cooler, COOLER_DISABLE ) )
            {
                log_printf( &logger, " Disabled.\r\n\n" );
            }
        }
    }
    Delay_ms ( 1000 );
}

int main ( void ) 
{
    /* Do not remove this line or clock might not be set correctly. */
    #ifdef PREINIT_SUPPORTED
    preinit();
    #endif
    
    application_init( );
    
    for ( ; ; ) 
    {
        application_task( );
    }

    return 0;
}

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

Additional Support

Resources

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