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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.7
mikroSDK Library: 2.0.0.0
Category: Temperature & humidity
Downloaded: 123 times
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License: MIT license
Temp&Hum 19 Click is a compact add-on board that represents temperature and humidity sensing solution. This board features the BPS240, a highly accurate relative humidity and temperature sensor from Bourns. This sensor, characterized by its high accuracy (±2% from 20% to 80%RH (±4% over entire humidity range)) and high resolution, provides 10-bit data to the host controller with a configurable I2C interface.
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DOWNLOAD LINK | RELATED COMPILER | CONTAINS |
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4840_temphum_19_click.zip [391.12KB] | 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 19 Click is a compact add-on board that represents temperature and humidity sensing solution. This board features the BPS240, a highly accurate relative humidity and temperature sensor from Bourns. This sensor, characterized by its high accuracy (±2% from 20% to 80%RH (±4% over entire humidity range)) and high resolution, provides 10-bit data to the host controller with a configurable I2C interface.
We provide a library for the TempHum 19 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 TempHum 19 Click driver.
temphum19_cfg_setup
Config Object Initialization function.
void temphum19_cfg_setup ( temphum19_cfg_t *cfg );
temphum19_init
Initialization function.
err_t temphum19_init ( temphum19_t *ctx, temphum19_cfg_t *cfg );
temphum19_default_cfg
Click Default Configuration function.
err_t temphum19_default_cfg ( temphum19_t *ctx );
temphum19_restart_chip
This function restarts the chip by toggling the EN pin state.
void temphum19_restart_chip ( temphum19_t *ctx );
temphum19_set_mode_reg
This function programs the mode register with a desired mode value, and stores it to the ctx->detection_mode variable.
err_t temphum19_set_mode_reg ( temphum19_t *ctx, uint8_t mode );
temphum19_read_data
This function reads temperature and humidity raw data and converts them to Celsius and Percents respectfully.
err_t temphum19_read_data ( temphum19_t *ctx, float *temperature, float *humidity );
This example demonstrates the use of Temp & Hum 19 Click board by reading the temperature and humidity data.
The demo application is composed of two sections :
Initializes the driver and performs the Click default configuration.
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
temphum19_cfg_t temphum19_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_info( &logger, " Application Init " );
// Click initialization.
temphum19_cfg_setup( &temphum19_cfg );
TEMPHUM19_MAP_MIKROBUS( temphum19_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == temphum19_init( &temphum19, &temphum19_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( TEMPHUM19_ERROR == temphum19_default_cfg ( &temphum19 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}
Reads the temperature (Celsius) and humidity (Percents) data and displays the results on the USB UART approximately once per second.
void application_task ( void )
{
float temperature, humidity;
if ( TEMPHUM19_OK == temphum19_read_data ( &temphum19, &temperature, &humidity ) )
{
log_printf ( &logger, " Temperature: %.1f C\r\n", temperature );
log_printf ( &logger, " Humidity: %.2f %%\r\n\n", humidity );
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.