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28 g
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THERMO Click is a compact add-on board that provides accurate temperature measurements. This board features the MAX31855K, a thermocouple-to-digital converter from Analog Devices, as well as a PCC-SMP connector for K-type thermocouple probe. Combination of MAX31855K and PCC-SMP connector results in high-accuracy temperature measurement in a temperature range between -270 and 1372°C with a sensitivity of about 41μV/°C. The device also contains cold-junction compensation sensing and correction providing temperature data to the host controller over an SPI interface (read-only). This Click board™ is suitable for thermostatic, process-control, monitoring applications, and many more.
THERMO Click is fully compatible with the mikroBUS™ socket and can be used on any host system supporting the mikroBUS™ standard. It comes with the mikroSDK open-source libraries, offering unparalleled flexibility for evaluation and customization. What sets this Click board™ apart is the groundbreaking ClickID feature, enabling your host system to seamlessly and automatically detect and identify this add-on board.
This product is no longer in stock
Availability date: 11/09/2023
THERMO Click uses the MAX31855K, a sophisticated thermocouple-to-digital converter with a built-in 14-bit analog-to-digital converter (ADC) from Analog Devices. The thermocouple type is indicated in the suffix of the part number, which is why this Click board™ corresponds to the appropriate K-type thermocouple probe. The MAX31855K and PCC-SMP connector combination supports high-accuracy temperature measurement ideal for thermostatic, process-control, and monitoring applications.
The function of the thermocouple is to sense a difference in temperature between two ends of the thermocouple wires. The thermocouple’s “hot” junction can be read across the operating temperature range, which for the MAX31855K is between -270 and 1372°C with a sensitivity of about 41μV/°C. It also features cold-junction compensation sensing and correction, a digital controller, and associated control logic. The reference junction, or “cold” end (which should be at the same temperature as the board on which the device is mounted), can range from -55°C to +125°C. While the temperature at the cold end fluctuates, the device accurately senses the temperature difference at the opposite end. It provides temperature data to the host controller over an SPI interface (read-only).
This 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.
Type
Temperature & humidity
Applications
Can be used for thermostatic, process-control, monitoring applications, and more
On-board modules
MAX31855K - thermocouple-to-digital converter from Analog Devices
Key Features
Cold-junction compensation, 14-bit - 0.25°C resolution, detects thermocouple shorts to GND or VCC, on-board PCC-SMP connector for K-type thermocouple probes, high accuracy, low power consumption, and more
Interface
SPI
Feature
ClickID Manifest,No ClickID
Compatibility
mikroBUS™
Click board size
S (28.6 x 25.4 mm)
Input Voltage
3.3V
This table shows how the pinout on THERMO Click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
Label | Name | Default | Description |
---|---|---|---|
LD1 | PWR | - | Power LED Indicator |
Description | Min | Typ | Max | Unit |
---|---|---|---|---|
Supply Voltage | - | 3.3 | - | V |
Thermocouple Operating Temperature Range | -270 | - | +1350 | °C |
Sensitivity | - | 41.276 | - | μV/°C |
TDC Resolution | - | 14 | - | bit |
We provide a library for the THERMO 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 THERMO Click driver.
Key functions
Function gets thermocouple temperature data.
Function checks fault states of MAX31855 sensor on Thermo click board.
Function reads the 32-bit of data from the sensor.
Example Description
This example measures temperature and then logs the results.
void application_task ( void )
{
temperature = thermo_get_temperature( &thermo );
log_printf( &logger, "Temperature : %frn", temperature );
}
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:
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 MIKROEcompilers.
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.
NOTE: Please be advised that any peripheral devices or accessories shown connected to the Click board™ are not included in the package. Check their availability in our shop or in the YMAN section below.