Beginner
10 min

Revolutionize temperature monitoring with TMP007 and STM32F031K6

Touch-free temperature tracking

IrThermo 2 Click with Nucleo 32 with STM32F031K6 MCU

Published Oct 01, 2024

Click board™

IrThermo 2 Click

Dev. board

Nucleo 32 with STM32F031K6 MCU

Compiler

NECTO Studio

MCU

STM32F031K6

Experience the power of contactless temperature monitoring for swift, accurate, and reliable results!

A

A

Hardware Overview

How does it work?

IrThermo 2 Click is based on the TMP007, an infrared thermopile sensor with an integrated Math Engine from Texas Instruments. When there is infrared radiation, and the sensor absorbs it, the integrated Math Engine calculates its temperature by comparing it with the temperature of the silicon die. The sensor is factory calibrated, but the user can adjust the calibration coefficients for specific applications. This adjustment could be the correction for the range, field of view, object shape, and environmental factors. Besides the direct

reading of the object temperature, Math Engine features programmable alerts, nonvolatile memory (EEPROM) for storing calibration coefficients, and transient correction. The IrThermo 2 Click uses an industry-standard I2C interface to communicate with the host MCU over the mikroBUS™ socket. One of eight programmable I2C addresses can be set over the ADR1 and ADR0 solder jumpers labeled ADDR SEL and positions 1 and 0. Those jumpers are set to 0 (GND) by default. It also features an active LOW

alert output on pin AL that can be used as an alert function if the TMP007 is working in an interrupt mode. This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via an onboard jumper. This way, both 3.3V and 5V capable MCUs can 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.

IrThermo 2 Click hardware overview image

Features overview

Development board

Nucleo 32 with STM32F031K6 MCU board provides an affordable and flexible platform for experimenting with STM32 microcontrollers in 32-pin packages. Featuring Arduino™ Nano connectivity, it allows easy expansion with specialized shields, while being mbed-enabled for seamless integration with online resources. The

board includes an on-board ST-LINK/V2-1 debugger/programmer, supporting USB reenumeration with three interfaces: Virtual Com port, mass storage, and debug port. It offers a flexible power supply through either USB VBUS or an external source. Additionally, it includes three LEDs (LD1 for USB communication, LD2 for power,

and LD3 as a user LED) and a reset push button. The STM32 Nucleo-32 board is supported by various Integrated Development Environments (IDEs) such as IAR™, Keil®, and GCC-based IDEs like AC6 SW4STM32, making it a versatile tool for developers.

Nucleo 32 with STM32F031K6 MCU double side image

Microcontroller Overview

MCU Card / MCU

default

Architecture

ARM Cortex-M0

MCU Memory (KB)

32

Silicon Vendor

STMicroelectronics

Pin count

32

RAM (Bytes)

4096

You complete me!

Accessories

Click Shield for Nucleo-32 is the perfect way to expand your development board's functionalities with STM32 Nucleo-32 pinout. The Click Shield for Nucleo-32 provides two mikroBUS™ sockets to add any functionality from our ever-growing range of Click boards™. We are fully stocked with everything, from sensors and WiFi transceivers to motor control and audio amplifiers. The Click Shield for Nucleo-32 is compatible with the STM32 Nucleo-32 board, providing an affordable and flexible way for users to try out new ideas and quickly create prototypes with any STM32 microcontrollers, choosing from the various combinations of performance, power consumption, and features. The STM32 Nucleo-32 boards do not require any separate probe as they integrate the ST-LINK/V2-1 debugger/programmer and come with the STM32 comprehensive software HAL library and various packaged software examples. This development platform provides users with an effortless and common way to combine the STM32 Nucleo-32 footprint compatible board with their favorite Click boards™ in their upcoming projects.

Click Shield for Nucleo-32 accessories 1 image

Used MCU Pins

mikroBUS™ mapper

NC
NC
AN
NC
NC
RST
NC
NC
CS
NC
NC
SCK
NC
NC
MISO
NC
NC
MOSI
Power Supply
3.3V
3.3V
Ground
GND
GND
NC
NC
PWM
Alert Interrupt
PA12
INT
NC
NC
TX
NC
NC
RX
I2C Clock
PB6
SCL
I2C Data
PB7
SDA
Power Supply
5V
5V
Ground
GND
GND
1

Take a closer look

Click board™ Schematic

IrThermo 2 Click Schematic  schematic

Step by step

Project assembly

Click Shield for Nucleo-144 front image hardware assembly

Start by selecting your development board and Click board™. Begin with the Nucleo 32 with STM32F031K6 MCU as your development board.

Click Shield for Nucleo-144 front image hardware assembly
Nucleo 144 with STM32L4A6ZG MCU front image hardware assembly
2x4 RGB Click front image hardware assembly
Prog-cut hardware assembly
Nucleo-32 with STM32 MCU 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
Clicker 4 for STM32F4 HA 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 IrThermo 2 Click driver.

Key functions:

  • irthermo2_get_raw_temperature - Function read 16-bit data from raw temperature register and calculate temperature in degrees Celsius

  • irthermo2_get_object_temperature_c - Function read 16-bit data from object temperature register and calculate temperature in degrees Celsius

  • irthermo2_get_object_temperature_f - Function read 16-bit data from object temperature register and calculate temperature in degrees Fahrenheit

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 IrThermo2 Click example
 * 
 * # Description
 * IrThermo 2 is a non-contact temperature measurement Click. The sensor absorbs the infrared 
 * radiation emitted by the target object (withing the sensor’s field of view) and 
 * the integrated math engine calculates its temperature by comparing it with the temperature 
 * of the silicon die. The measurement range of the sensor is between –40°C to 125°C.
 *
 * The demo application is composed of two sections :
 * 
 * ## Application Init 
 * Initialization driver enable's - I2C, set default configuration and start write log.
 * 
 * ## Application Task  
 * This is a example which demonstrates the use of IrThermo 2 Click board.
 * Measures the object temperature value from sensor and calculate temperature in degrees Celsius [ C ].
 * Results are being sent to the USART Terminal where you can track their changes.
 * All data logs on usb uart for aproximetly every 5 sec when the data value changes.
 * 
 *
 * @author MikroE Team
 *
 */

#include "board.h"
#include "log.h"
#include "irthermo2.h"


static irthermo2_t irthermo2;
static log_t logger;

static float temperature;


void application_init ( void )
{
    log_cfg_t log_cfg;
    irthermo2_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 ----" );

    //  Click initialization.

    irthermo2_cfg_setup( &cfg );
    IRTHERMO2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    irthermo2_init( &irthermo2, &cfg );

    irthermo2_default_cfg( &irthermo2 );
    Delay_ms ( 100 );
    log_info( &logger, "---- Application Task ----" );
}

void application_task ( void )
{
    temperature = irthermo2_get_object_temperature_c( &irthermo2 );

    log_printf( &logger, " Temperature : %.2f C\r\n", temperature );
    log_printf( &logger, "---------------------------\r\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

Love this project?

'Buy This Kit' button takes you directly to the shopping cart where you can easily add or remove products.