Mikroelektronika d.o.o.
Thermo 24 Click Board
Thermo 24 Click Board
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Key Features
- Niedriger Stromverbrauch, hohe Präzision, hohe Genauigkeit, 16-Bit-Temperatur-Digital-Wandler, 0,01 °C Temperaturauflösung, I2C-kompatible serielle Schnittstelle und mehr
- Basierend auf dem STS40 - hochpräziser Temperatursensor mit extrem niedrigem Stromverbrauch von Sensirion
- Kann für das Wärmemanagement und den Schutz verschiedener Verbraucher-, Industrie- und Umweltanwendungen verwendet werden
- mikroBUS: I2C-Schnittstelle
Das Thermo 24 Click Board™ ist eine kompakte Zusatzplatine, die die Temperatursensorlösung der 4. Generation von Sensirion enthält. Es verfügt über den STS40, einen hochpräzisen Temperatursensor mit extrem geringem Stromverbrauch, der einen digitalen Temperatursensor mit einem 16-Bit-Analog-Digital-Wandler (ADC), einer Datenverarbeitungsschaltung und seriellen Schnittstellenlogikfunktionen in einem Gehäuse integriert. Dieser Temperatursensor zeichnet sich durch seine hohe Genauigkeit (typisch bis zu ±0,2 °C) und hohe Auflösung von 0,01 °C aus und liefert Temperaturdaten an den Host-Controller mit einer konfigurierbaren I2C-Schnittstelle. Diese Click-Platine eignet sich für das Wärmemanagement und den Schutz verschiedener Verbraucher-, Industrie- und Umweltanwendungen.
Das Thermo 24 Click Board™ wird von einer mikroSDK-kompatiblen Bibliothek unterstützt, die Funktionen enthält, die die Softwareentwicklung vereinfachen. Dieses Click Board™ wird als vollständig getestetes Produkt geliefert und ist bereit für den Einsatz auf einem System, das mit der mikroBUS™-Buchse ausgestattet ist.
How Does The Thermo 24 Click Board™ Work?
The Thermo 24 Click Board™ as its foundation uses the STS40, a high-accuracy ultra-low-power 16-bit temperature sensor from Sensirion. This temperature sensor is characterized by high accuracy; temperature range of -40°C to +120°C provides typical ±0.2°C accuracy. It integrates a digital temperature sensor with a 16-bit analog-to-digital converter (ADC), a data processing circuit, and serial interface logic functions in one package. The voltage is digitized and converted to a 16-bit temperature result in degrees Celsius, with a resolution of 0.01°C. The STS40 achieves the most significant cost efficiency among comparable sensors.
The STS40 communicates with MCU using a standard I2C 2-Wire interface. Given that this chip can be found in multiple versions with its own unique I2C slave address, this version, specifically the STS40-AD1B, comes with the slave address of 0x44. Since the sensor for operation requires a 3.3V logic voltage level only, this Click board™ also features the PCA9306 voltage-level translator from Texas Instruments. The I2C interface bus lines are routed to the dual bidirectional voltage-level translator, allowing this Click board™ to work with both 3.3V and 5V MCUs properly.
The Thermo 24 Click Board™ can operate with both 3.3V and 5V logic voltage levels selected via the VIO 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 that contains easy-to-use functions and an example code that can be used, as a reference, for further development.
SPECIFICATIONS
| Type | Temperature & humidity |
| Applications | The Thermo 24 Click Board™ can be used for thermal management and protection of various consumer, industrial, and environmental applications |
| On-board modules | STS40 - high-accuracy ultra-low-power temperature sensor from Sensirion |
| Key Features | Low power consumption, high precision, high accuracy, 16-bit temperature-to-digital converter, 0.01°C temperature resolution, I2C compatible serial interface, and more |
| Interface | I2C |
| Compatibility | mikroBUS |
| Click board size | S (28.6 x 25.4 mm) |
| Input Voltage | 3.3V or 5V |
PINOUT DIAGRAM
This table shows how the pinout of the Thermo 24 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
| Notes | Pin |  |
Pin | Notes | |||
|---|---|---|---|---|---|---|---|
| NC | 1 | AN | PWM | 16 | NC | ||
| NC | 2 | RST | INT | 15 | NC | ||
| NC | 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
| Label | Name | Default | Description |
|---|---|---|---|
| LD1 | PWR | - | Power LED Indicator |
| JP1 | VIO SEL | Left | Logic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V |
THERMO 24 CLICK ELECTRICAL SPECIFICATIONS
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3.3 | - | 5 | V |
| Accuracy | - | ±0.2 | - | °C |
| Resolution | - | 16 | - | bit |
| Operating Temperature Range | -40 | +25 | +120 | °C |
Software Support
We provide a library for the Thermo 24 Click Board™ as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
The package can be downloaded/installed directly from NECTO Studio The package Manager (recommended), downloaded from our LibStock™ or found on MikroE Github account.
Library Description
This library contains API for the Thermo 24 Click Board™ driver.
Key functions
-
thermo24_soft_resetThis function performs the software reset by sending the soft reset command by using I2C serial interface. -
thermo24_read_serialThis function reads the 4-byte chip serial number by using I2C serial interface. -
thermo24_read_temperatureThis function reads the temperature in Celsius with the specified measurement precision.
Example Description
This example demonstrates the use of the Thermo 24 Click Board™ by reading and displaying the temperature measurements.
void application_task ( void )
{
float temperature;
if ( THERMO24_OK == thermo24_read_temperature ( &thermo24, THERMO24_MEASURE_PRECISION_HIGH, &temperature ) )
{
log_printf ( &logger, " Temperature: %.2f Crnn", temperature );
Delay_ms ( 1000 );
}
}
The full application code, and ready to use projects can be installed directly from NECTO Studio The 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.Thermo24
Additional Notes and Information
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 MikroElektronika compilers.
MIKROSDK
The Thermo 24 Click Board™ is supported with mikroSDK - MikroElektronika 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.
Software Support
We provide a library for the Thermo 24 Click Board™ as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
The package can be downloaded/installed directly from NECTO Studio The package Manager (recommended), downloaded from our LibStock™ or found on MikroE Github account.
Library Description
This library contains API for the Thermo 24 Click Board™ driver.
Key functions
-
thermo24_soft_resetThis function performs the software reset by sending the soft reset command by using I2C serial interface. -
thermo24_read_serialThis function reads the 4-byte chip serial number by using I2C serial interface. -
thermo24_read_temperatureThis function reads the temperature in Celsius with the specified measurement precision.
Example Description
This example demonstrates the use of the Thermo 24 Click Board™ by reading and displaying the temperature measurements.
void application_task ( void )
{
float temperature;
if ( THERMO24_OK == thermo24_read_temperature ( &thermo24, THERMO24_MEASURE_PRECISION_HIGH, &temperature ) )
{
log_printf ( &logger, " Temperature: %.2f Crnn", temperature );
Delay_ms ( 1000 );
}
}
The full application code, and ready to use projects can be installed directly from NECTO Studio The 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.Thermo24
Additional Notes and Information
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 MikroElektronika compilers.
MIKROSDK
The Thermo 24 Click Board™ is supported with mikroSDK - MikroElektronika 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.
Thermo 24 Click Board
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