Mikroelektronika d.o.o.
Temp&Hum 15 Click Board
Temp&Hum 15 Click Board
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Overview
The Temp&Hum 15 Click Board™ is a compact add-on board that contains the 4th generation of best-in-class SHT humidity sensing solution from Sensirion. This board features the SHT40, a high-accuracy ultra-low-power 16-bit relative humidity, and a temperature sensor. It provides constant temperature accuracy, up to 0.1°C, and shows the best performance when operated within the recommended average temperature and humidity range of 5-60°C and 20-80%RH. The fully calibrated sensor offers linearized digital output, NIST traceability, and I2C Fast Mode Plus. It is reflow solderable and operational in condensing environments. This Click Board™ is an ideal solution for various temperature and humidity-related applications.
The Temp&Hum 15 Click is supported by a mikroSDK compliant library, which includes functions that simplify software development. This Click Board™ comes as a fully tested product, ready to be used on a system equipped with the mikroBUS™ socket.
How Does the Temp & Hum 15 Click Board™ Work?
The Temp & Hum 15 Click Board™ as its foundation uses the SHT40, high-accuracy ultra-low-power 16-bit relative humidity and temperature sensor from Sensirion. The SHT40 builds on a wholly new and optimized CMOS chip that offers reduced power consumption and improved accuracy specifications. It provides a fully calibrated digital I2C Fast Mode Plus interface for the fastest data transfer. It covers extended operating humidity and temperature ranges from 0 to 100%RH and from -40°C to 125°C with accuracies of ±1.8%RH and ±0.2°C. The SHT40 also has a power-trimmed internal heater which can be used at three heating levels enabling sensor operation in demanding environments.
The sensor shows the best performance when operated within the recommended average temperature and humidity range of 5-60°C and 20-80%RH. Long-term exposure to conditions outside recommended normal range, especially at high relative humidity, may temporarily offset the RH signal. After returning to the recommended average temperature and humidity range, the sensor will recover to within specifications by itself.
The Temp&Hum 15 Click Board™ communicates with MCU using the standard I2C 2-Wire interface. 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 Temp&Hum 15 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 I2C 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 | Can be used in various temperature and humidity-related applications |
PINOUT DIAGRAM
This table shows how the pinout on Temp&Hum 15 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 | 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 |
TEMP&HUM 15 CLICK ELECTRICAL SPECIFICATIONS
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3.3 | - | 5 | V |
| Temperature Accuracy | - | ±0.2 | - | °C |
| Relative Humidity Accuracy | - | ±1.8 | - | %RH |
| Resolution | - | 0.01 | - | %RH |
| Operating Humidity Range | 0 | - | 100 | %RH |
| Operating Temperature Range | -40 | +25 | +125 | °C |
Software Support
We provide a library for the Temp&Hum 15 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 the mikroE Github account.
Library Description
This library contains API for the Temp&Hum 15 Click Board™ driver.
Key Functions
temphum15_cfg_setup- Config Object Initialization function.temphum15_init- Initialization function.temphum15_default_cfg- Click the Default Configuration function.
Example Description
This demo app represents the performance of the Temp&Hum 15 Click Board™. The log displays the temperature and humidity obtained from the sensor.
The demo application is composed of two sections :
void application_task ( void ) {
err_t status_data;
status_data = temphum15_get_temp_and_hum( &temphum15, TEMPHUM15_MODE_HIGH_PRECISION, &temperature, &humidity );
if ( status_data == TEMPHUM15_SUCCESS ) {
log_printf( &logger, "----------------------------rn" );
log_printf( &logger, "> Temperature : %.2f Crn", temperature );
log_printf( &logger, "> Humidity: %.2f %RHrn", humidity );
} else {
log_printf( &logger, "----------------------------rn" );
log_printf( &logger, "> No datarn" );
}
Delay_ms( 2000 );
}
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.TempHum15
Additional Notes and Information
Depending on the development board you are using, you may need a USB UART Click Board™, USB UART 2 Click Board™ or RS232 Click Board™ to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.
MIKROSDK
The Temp&Hum 15 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 Temp&Hum 15 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 the mikroE Github account.
Library Description
This library contains API for the Temp&Hum 15 Click Board™ driver.
Key Functions
temphum15_cfg_setup- Config Object Initialization function.temphum15_init- Initialization function.temphum15_default_cfg- Click the Default Configuration function.
Example Description
This demo app represents the performance of the Temp&Hum 15 Click Board™. The log displays the temperature and humidity obtained from the sensor.
The demo application is composed of two sections :
void application_task ( void ) {
err_t status_data;
status_data = temphum15_get_temp_and_hum( &temphum15, TEMPHUM15_MODE_HIGH_PRECISION, &temperature, &humidity );
if ( status_data == TEMPHUM15_SUCCESS ) {
log_printf( &logger, "----------------------------rn" );
log_printf( &logger, "> Temperature : %.2f Crn", temperature );
log_printf( &logger, "> Humidity: %.2f %RHrn", humidity );
} else {
log_printf( &logger, "----------------------------rn" );
log_printf( &logger, "> No datarn" );
}
Delay_ms( 2000 );
}
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.TempHum15
Additional Notes and Information
Depending on the development board you are using, you may need a USB UART Click Board™, USB UART 2 Click Board™ or RS232 Click Board™ to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.
MIKROSDK
The Temp&Hum 15 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.
Frequently Asked Questions
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