Cooler Click

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.

Specifications

Pinout diagram

This table shows how the pinout on Cooler Click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes	Pin					Pin	Notes
Current Monitor	IP	1	AN	PWM	16	IN1	Fan Driver Control 1
Fan Driver Control 2	IN2	2	RST	INT	15	ALR	Alert Interrupt
ID COMM	CS	3	CS	RX	14	NC
	NC	4	SCK	TX	13	NC
	NC	5	MISO	SCL	12	SCL	I2C Clock
	NC	6	MOSI	SDA	11	SDA	I2C Data
Power Supply	3.3V	7	3.3V	5V	10	5V	Power Supply
Ground	GND	8	GND	GND	9	GND	Ground

Onboard settings and indicators

Cooler Click electrical specifications

Software Support

We provide a library for the Cooler Click as well as a demo application (example), developed using MIKROE compilers. The demo can run on all the main MIKROE development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended), downloaded from our LibStock™ or found on Mikroe github account.

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.

Example Description

This example demonstrates the use of the Cooler click board by reading the target object temperature and controlling the cooler.

void application_task ( void )  
 { 
     float temperature = 0; 
     if ( COOLER_OK == cooler_get_object_temperature( &cooler, &temperature ) ) 
     { 
         log_printf( &logger, " Temperature: %.2f degCrn", 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.rnn" ); 
             } 
         } 
         else 
         { 
             if ( COOLER_OK == cooler_set_out_state( &cooler, COOLER_DISABLE ) ) 
             { 
                 log_printf( &logger, " Disabled.rnn" ); 
             } 
         } 
     } 
     Delay_ms( 1000 ); 
 }

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

• MikroSDK.Board
• MikroSDK.Log
• Click.Cooler

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. UART terminal is available in all MIKROE compilers.

mikroSDK

This Click board™ is supported with mikroSDK – MIKROE Software Development Kit. To ensure proper operation of mikroSDK compliant Click board™ demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.

For more information about mikroSDK, visit the official page.