Mikroelektronika d.o.o.
Carte à clic Thermo 28
Carte à clic Thermo 28
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Key Features:
- Faible consommation d'énergie, haute précision, interface I2C, calibré en usine, haute précision et résolution, haute fiabilité et stabilité à long terme, et plus encore
- Basé sur le capteur de température numérique AS6221 d'ams AG
- Peut être utilisé pour remplacer les résistances PTC dans diverses applications grand public et environnementales
- mikroBUS : interface I2C
La carte Click Board™ Thermo 28 est une carte complémentaire compacte qui mesure la température avec précision. Cette carte est équipée de l'AS6221 d'ams AG, un capteur de température numérique de haute précision. L'AS6221 se compose d'un capteur de température à bande interdite Si calibré en usine, d'un ADC 16 bits et d'un processeur de signal numérique, offrant une haute précision de ±0,9°C. Il fournit des données de température au contrôleur hôte via une interface I2C compatible, une fiabilité, des adresses I2C sélectionnables par l'utilisateur et une fonctionnalité d'alerte, qui déclenche une interruption pour protéger l'appareil des températures excessives. Cette carte Click™ peut être utilisée dans des applications de haute précision, telles que la mesure de la température de la peau et le remplacement des résistances PTC dans diverses applications grand public et environnementales.
La carte Click™ Thermo 28 est prise en charge par une bibliothèque compatible mikroSDK, qui comprend des fonctions qui simplifient le développement logiciel. Cette carte Click™ est un produit entièrement testé, prêt à être utilisé sur un système équipé du socket mikroBUS™.
How Does The Thermo 28 Click Board™ Work?
The Thermo 28 Click Board™ is based on the AS6221, a digital temperature sensor from ams AG with increased reliability and improved accuracy specifications optimal for thermal management and protection applications. It integrates a digital temperature sensor with a SI bipolar transistor as a sensing element, a high-resolution analogue-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, giving a fully calibrated digital output with outstanding accuracy of up to ±0.9°C typical over a temperature range of 20°C to 42°C.
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The Thermo 28 Click Board™ communicates with MCU using the standard I2C 2-Wire interface to read data and configure settings, supporting a high clock frequency operation. Besides, it also allows the choice of the four least significant bits of its I2C slave address by positioning the SMD jumper labelled ADDR SEL to an appropriate position providing the user with a selection of four slave addresses. In addition to communication signals, the AS6221 also possesses an additional interrupt alert signal, routed on the INT pin of the mikroBUS™ socket, indicating when a specific interrupt event occurs that depends on the value of the temperature reading relative to programmable limits.
The Thermo 28 Click Board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used as a reference for further development.
SPECIFICATIONS
| Type | Temperature & humidity |
| Applications | It can be used to replace PTC resistors in various consumer, and environmental applications |
| On-board modules | AS6221 - digital temperature sensor from ams AG |
| Key Features | Low power consumption, high precision, I2C interface, factory calibrated, high accuracy and resolution, high reliability and long-term stability, and more |
| Interface | I2C |
| Compatibility | mikroBUS |
| Click board size | S (28.6 x 25.4 mm) |
| Input Voltage | 3.3V |
PINOUT DIAGRAM
This table shows how the pinout of the Thermo 28 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 | INT | Interrupt | |
| 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 | NC | |
| Ground | GND | 8 | GND | GND | 9 | GND | Ground |
ONBOARD SETTINGS AND INDICATORS
| Label | Name | Default | Description |
|---|---|---|---|
| LD1 | PWR | - | Power LED Indicator |
| JP1 | ADDR SEL | Lower | I2C Address Selection: Left position SDA, Right position SCL, Upper position 1, Lower position 0 |
THERMO 28 CLICK ELECTRICAL SPECIFICATIONS
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | - | 3.3 | - | V |
| Temperature Accuracy | - | ±0.9 | - | °C |
| Resolution | - | 16 | - | bits |
| Operating Temperature Range | -20 | +25 | +80 | °C |
Software Support
We provide a library for the Thermo 28 Click Board™ as well as a demo application (example), developed using MikroE compilers. The demo can run on all the main MikroE development boards.
The package can be downloaded/installed directly from NECTO Studio The package Manager(recommended), downloaded from our LibStock™ or found on the MikroE Github account.
Library Description
This library contains API for the Thermo 28 Click Board™ driver.
Key functions
-
thermo28_get_temperatureThermo 28 get temperature function. -
thermo28_set_configThermo 28 set configuration function. -
thermo28_set_continuous_conversionThermo 28 set continuous conversion function.
Example Description
This example demonstrates the use of the Thermo 28 Click Board™ by reading and displaying the temperature measurements.
void application_task ( void )
{
float temperature;
if ( THERMO28_OK == thermo28_get_temperature( &thermo28, &temperature ) )
{
log_printf( &logger, " Temperature [degC]: %.2f rn", temperature );
Delay_ms( 1000 );
}
}
The complete 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 the MikroE Github account.
Other MikroE Libraries used in the example:
- MikroSDK.Board
- MikroSDK.Log
- Click.Thermo28
Additional Notes and Information
Depending on the development board you are using, you may need USB UART Click Board™, 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
The Thermo 28 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.
Carte à clic Thermo 28
Frequently Asked Questions
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