Mikroelektronika d.o.o.
Thermo 29 Click Board
Thermo 29 Click Board
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Key Features:
- High accuracy, broad temperature range, high resolution, SPI interface, fast measurement intervals with no self-heating, advanced features for increased reliability, programmable alert, factory-calibrated, low power consumption, and more
- Based on the TMP126 - digital output temperature sensor from Texas Instruments
- Can be used for the thermal management of portable electronics and industrial, consumer, and environmental applications
- mikroBUS: SPI Interface
The Thermo 29 Click Board™: Accurate Temperature Measurements Made Easy
The Thermo 29 Click Board™ is the perfect solution for anyone needing precise and reliable temperature measurements. With its compact design and advanced features, this board is a must-have for various applications.
Superior Accuracy with the TMP126 Sensor
At the heart of the Thermo 29 Click Board™, the TMP126 is an exceptional digital temperature sensor manufactured by Texas Instruments. This high-accuracy sensor combines an internally calibrated thermal BJT sensor, a 14-bit ADC, and a digital signal processor to provide unparalleled accuracy.
With an impressive accuracy rating of ±0.25°C and a temperature resolution of 0.03125°C per LSB, the TMP126 ensures you can rely on precise temperature measurements. Whether you're monitoring industrial processes, optimizing thermal management in electronic devices, or working on environmental applications, the Thermo 29 Click Board™ has got you covered.
Stay Alert with Programmable Alarm Functionality
The Thermo 29 Click Board™ goes beyond temperature measurement by offering a programmable alarm function. This feature allows you to set specific temperature thresholds and receive interrupt signals on your microcontroller unit (MCU) when these thresholds are crossed.
You can promptly respond to critical temperature events and take appropriate actions by leveraging the programmable alarm function. Whether it's preventing overheating in portable electronics or maintaining optimal operating conditions in industrial systems, the Thermo 29 Click Board™ helps you stay in control.
Simplified Software Development with mikroSDK Support
Developing software for the Thermo 29 Click Board™ is a breeze, thanks to its mikroSDK-compliant library. This comprehensive library provides a set of functions that simplify the integration of the Click board™ into your system.
By utilizing the mikroSDK-compliant library, you can save valuable time and effort during software development. The Thermo 29 Click Board™ is a fully tested and ready-to-use product, ensuring a seamless experience when integrated with any system equipped with the popular mikroBUS™ socket.
Don't settle for anything less than accurate and reliable temperature measurements. Get the Thermo 29 Click Board™ today and experience the difference it makes in thermal management across various applications!
How Does The Thermo 29 Click Board™ Work?
The Thermo 29 Click Board™ is based on the TMP126, a digital output temperature sensor from Texas Instruments with increased reliability and improved accuracy specifications optimal for thermal management and protection applications. The TMP126 consists of an internal thermal BJT (factory calibrated on a NIST traceable setup), a high-resolution 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 14-bit temperature result in degrees Celsius, giving a fully calibrated digital output with outstanding accuracy of up to ±0.25°C and temperature resolution of 0.03125°C per LSB, typical over a temperature range of 20°C to 30°C.
This Click board™ communicates with MCU using a 3-wire SPI-compatible interface with a maximum frequency of 10MHz, for data transfer and configuration of the TMP126. Using the Mode bit in the configuration register, the TMP126 can be configured to operate in various conversion modes, including continuous, one-shot, and shutdown modes. These modes provide flexibility to use the board in the most power-efficient way necessary for the intended application.
The TMP126 also includes advanced features for increased reliability in harsh environments. These include an optional CRC checksum for data integrity, programmable alert limits, a temperature slew rate warning, and an enhanced operating temperature range. An alarm (interrupt) signal, marked as ALR and routed to the interrupt pin of the mikroBUS™ socket, is alarming when a specific temperature event occurs that depends on the value of the temperature reading relative to programmable limits. In addition to the ALR pin, this function can be visually identified by a red LED marked as ALERT.
The Thermo 29 Click Board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC 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 containing easy-to-use functions and an example code that can be used, as a reference, for further development.
SPECIFICATIONS
| Type | Temperature & humidity |
| Applications | Can be used for the thermal management of portable electronics and industrial, consumer, and environmental applications |
| On-board modules | TMP126 - digital output temperature sensor from Texas Instruments |
| Key Features | High accuracy, broad temperature range, high resolution, SPI interface, fast measurement intervals with no self-heating, advanced features for increased reliability, programmable alert, factory-calibrated, low power consumption, and more |
| Interface | SPI |
| 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 on Thermo 29 Click 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 | ALR | Alert Interrupt | |
| SPI Chip Select | CS | 3 | CS | RX | 14 | NC | |
| SPI Clock | SCK | 4 | SCK | TX | 13 | NC | |
| SPI Data OUT | SDO | 5 | MISO | SCL | 12 | NC | |
| SPI Data IN | SDI | 6 | MOSI | SDA | 11 | NC | |
| 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 |
| LD2 | ALERT | - | Alert LED Indicator |
| JP1 | VCC SEL | Left | Logic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V |
THERMO 29 CLICK ELECTRICAL SPECIFICATIONS
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3.3 | - | 5 | V |
| Temperature Accuracy | -0.3 | - | 0.3 | deg |
| Temperature Resolution | - | 0.03125 | - | °C/LSB |
| Temperature Range | -20 | +25 | +85 | °C |
Software Support
We provide a library for the Thermo 29 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 MikroE Github account.
Library Description
This library contains API for the Thermo 29 Click Board™ driver.
Key functions
-
thermo29_read_unique_idThis function reads the device unique ID words (6 bytes in total). -
thermo29_get_alert_pinThis function returns the alert pin logic state. -
thermo29_read_temperatureThis function reads the temperature measurement in degrees Celsius.
Example Description
This example demonstrates the use of the Thermo 29 Click Board™ by reading and displaying the temperature measurements.
void application_task ( void )
{
float temperature;
// Wait for the data ready alert flag
while ( thermo29_get_alert_pin ( &thermo29 ) );
if ( ( THERMO29_OK == thermo29_clear_alert_status ( &thermo29 ) ) &&
( THERMO29_OK == thermo29_read_temperature ( &thermo29, &temperature ) ) )
{
log_printf ( &logger, " Temperature: %.2f degCrnn", temperature );
}
}
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.Thermo29
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
Thie Thermo 29 Click Board™ is supported with mikroSDK - MikroE Software Development Kit, which needs to be downloaded from the LibStock and installed for the compiler you are using to ensure proper operation of mikroSDK compliant Click board™ demo applications.
Thermo 29 Click Board
Frequently Asked Questions
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