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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.13
mikroSDK Library: 2.0.0.0
Category: Temperature & humidity
Downloaded: 140 times
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License: MIT license
Temp & Hum 14 Click is a compact add-on board that contains one of the smallest and most accurate humidity and temperature sensors on the market. This board features the HTU31D, a highly accurate digital relative humidity sensor with temperature output from TE Connectivity. With power consumption down to 3.78μW and accuracy of ±2%RH and ±0.2°C, this Click board™ provides fast response time, precision measurement, low hysteresis, and sustained performance even when exposed to extreme temperature up to 125°C and humidity environments.
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4673_temphum_14_click.zip [396.21KB] | mikroC AI for ARM GCC for ARM Clang for ARM mikroC AI for PIC mikroC AI for PIC32 XC32 GCC for RISC-V Clang for RISC-V mikroC AI for AVR mikroC AI for dsPIC XC16 |
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Temp & Hum 14 Click is a compact add-on board that contains one of the smallest and most accurate humidity and temperature sensors on the market. This board features the HTU31D, a highly accurate digital relative humidity sensor with temperature output from TE Connectivity. With power consumption down to 3.78μW and accuracy of ±2%RH and ±0.2°C, this Click board™ provides fast response time, precision measurement, low hysteresis, and sustained performance even when exposed to extreme temperature up to 125°C and humidity environments.
We provide a library for the TempHum14 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.
This library contains API for TempHum14 Click driver.
temphum14_cfg_setup
Config Object Initialization function.
void temphum14_cfg_setup ( temphum14_cfg_t *cfg );
temphum14_init
Initialization function.
err_t temphum14_init ( temphum14_t *ctx, temphum14_cfg_t *cfg );
temphum14_set_conversion
The function set conversion a single temperature and humidity conversion and select data resolution to the HTU31D RH/T SENSOR IC Digital Relative Humidity sensor with Temperature output on the Temp-Hum 14 Click board.
void temphum14_set_conversion ( temphum14_t *ctx, uint8_t hum_osr, uint8_t temp_osr );
temphum14_read_t_and_rh
The function read temperature and humidity data of the HTU31D RH/T SENSOR IC Digital Relative Humidity sensor with Temperature output on the Temp-Hum 14 Click board.
void temphum14_read_t_and_rh ( temphum14_t *ctx, uint8_t *p_rx_data );
temphum14_get_temp_and_hum
The function get temperature and humidity value of the HTU31D RH/T SENSOR IC Digital Relative Humidity sensor with Temperature output on the Temp-Hum 14 Click board.
void temphum14_get_temp_and_hum ( temphum14_t *ctx, float *temp, float *hum );
This is an example that demonstrates the use of the Temp-Hum 14 Click board. Temp-Hum 14 Click board can be used to measure temperature and relative humidity. All data logs write on USB uart changes every 3 sec.
The demo application is composed of two sections :
Initialization driver enables I2C, and hardware reset the device and read the serial number.
void application_init ( void ) {
log_cfg_t log_cfg; /**< Logger config object. */
temphum14_cfg_t temphum14_cfg; /**< Click config object. */
/**
* Logger initialization.
* Default baud rate: 115200
* Default log level: LOG_LEVEL_DEBUG
* @note If USB_UART_RX and USB_UART_TX
* are defined as HAL_PIN_NC, you will
* need to define them manually for log to work.
* See @b LOG_MAP_USB_UART macro definition for detailed explanation.
*/
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_printf( &logger, "-----------------------------\r\n" );
log_info( &logger, " Application Init " );
log_printf( &logger, "-----------------------------\r\n" );
// Click initialization.
temphum14_cfg_setup( &temphum14_cfg );
TEMPHUM14_MAP_MIKROBUS( temphum14_cfg, MIKROBUS_1 );
err_t init_flag = temphum14_init( &temphum14, &temphum14_cfg );
if ( I2C_MASTER_ERROR == init_flag ) {
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
Delay_ms ( 100 );
log_printf( &logger, "-----------------------------\r\n" );
log_printf( &logger, " Hardware Reset \r\n" );
temphum14_hw_reset( &temphum14 );
Delay_ms ( 100 );
ser_numb = temphum14_get_serial_number( &temphum14 );
log_printf( &logger, "-----------------------------\r\n" );
log_printf( &logger, " Serial Number : %lu \r\n", ser_numb );
log_printf( &logger, "-----------------------------\r\n" );
log_printf( &logger, " Software Reset \r\n" );
temphum14_soft_reset( &temphum14 );
Delay_ms ( 100 );
temphum14_get_diagnostic( &temphum14, &status_data );
Delay_ms ( 10 );
display_diagnostic( );
Delay_ms ( 100 );
log_info( &logger, " Application Task " );
log_printf( &logger, "-----------------------------\r\n" );
}
Reading temperature and humidity, and loging it on the USB uart.
void application_task ( void ) {
temphum14_set_conversion( &temphum14, TEMPHUM14_CONVERSION_HUM_OSR_0_020, TEMPHUM14_CONVERSION_TEMP_0_040 );
Delay_ms ( 10 );
temphum14_get_temp_and_hum( &temphum14, &temperature, &humidity );
Delay_ms ( 10 );
log_printf( &logger, " Temperature : %.2f C \r\n", temperature );
log_printf( &logger, " Humidity : %.2f %% \r\n", humidity );
log_printf( &logger, "-----------------------------\r\n" );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
}
The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), 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 MikroElektronika compilers.