Experience a new level of environmental monitoring with ICP-10125 and TM4C129ENCPDT
Your gateway to atmospheric intelligence!
Published Nov 12, 2023
Click board™
Barometer 12 Click
Dev. board
Fusion for Tiva v8
Compiler
NECTO Studio
MCU
TM4C129ENCPDT
Our digital barometric pressure sensor is not just a device; it's a gateway to unlocking a world of possibilities. Accurate, reliable, and versatile – it's the key to gaining a deeper understanding of your environment.
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Hardware Overview
How does it work?
Barometer 12 Click is based on the ICP-10125, a high-accuracy, low-power, 10-atm waterproof barometric pressure and temperature sensor from TDK InvenSense. It is a very accurate sensor and can measure pressure differences with an accuracy of ±1 Pa, enabling altitude measurement differentials as small as 8.5 cm, less than the height of a single stair step. In addition to high accuracy, this sensor consumes only 1.3μA at 1Hz, making it ideal for battery-powered applications.
According to the datasheet table, the sensor performs best with the recommended temperature and pressure range. The sensor works at 1.8V, which it gets from the AP2112, a CMOS LDO regulator from Diodes Incorporated. Barometer 12 Click uses a standard 2-Wire I2C interface to communicate with the host MCU, supporting clock frequency up to 400KHz. To allow safe sensor operation on both 5V and 3.3V voltage logic, this Click board™ features the PCA9306, a
dual bidirectional I2C bus and SMBus voltage-level translator from Texas Instruments. This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VIO SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this 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.
Features overview
Development board
Fusion for TIVA v8 is a development board specially designed for the needs of rapid development of embedded applications. It supports a wide range of microcontrollers, such as different 32-bit ARM® Cortex®-M based MCUs from Texas Instruments, regardless of their number of pins, and a broad set of unique functions, such as the first-ever embedded debugger/programmer over a WiFi network. The development board is well organized and designed so that the end-user has all the necessary elements, such as switches, buttons, indicators, connectors, and others, in one place. Thanks to innovative manufacturing technology, Fusion for TIVA v8 provides a fluid and immersive working experience, allowing access
anywhere and under any circumstances at any time. Each part of the Fusion for TIVA v8 development board contains the components necessary for the most efficient operation of the same board. An advanced integrated CODEGRIP programmer/debugger module offers many valuable programming/debugging options, including support for JTAG, SWD, and SWO Trace (Single Wire Output)), and seamless integration with the Mikroe software environment. Besides, it also includes a clean and regulated power supply module for the development board. It can use a wide range of external power sources, including a battery, an external 12V power supply, and a power source via the USB Type-C (USB-C) connector.
Communication options such as USB-UART, USB HOST/DEVICE, CAN (on the MCU card, if supported), and Ethernet is also included. In addition, it also has the well-established mikroBUS™ standard, a standardized socket for the MCU card (SiBRAIN standard), and two display options for the TFT board line of products and character-based LCD. Fusion for TIVA v8 is an integral part of the Mikroe ecosystem for rapid development. Natively supported by Mikroe software tools, it covers many aspects of prototyping and development thanks to a considerable number of different Click boards™ (over a thousand boards), the number of which is growing every day.
Microcontroller Overview
MCU Card / MCU
Type
8th Generation
Architecture
ARM Cortex-M4
MCU Memory (KB)
1024
Silicon Vendor
Texas Instruments
Pin count
128
RAM (Bytes)
262144
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Click board™ Schematic
Step by step
Project assembly
Start by selecting your development board and Click board™. Begin with the Fusion for Tiva v8 as your development board.
Track your results in real time
Application Output
1. Application Output - In Debug mode, the 'Application Output' window enables real-time data monitoring, offering direct insight into execution results. Ensure proper data display by configuring the environment correctly using the provided tutorial.
2. UART Terminal - Use the UART Terminal to monitor data transmission via a USB to UART converter, allowing direct communication between the Click board™ and your development system. Configure the baud rate and other serial settings according to your project's requirements to ensure proper functionality. For step-by-step setup instructions, refer to the provided tutorial.
3. Plot Output - The Plot feature offers a powerful way to visualize real-time sensor data, enabling trend analysis, debugging, and comparison of multiple data points. To set it up correctly, follow the provided tutorial, which includes a step-by-step example of using the Plot feature to display Click board™ readings. To use the Plot feature in your code, use the function: plot(*insert_graph_name*, variable_name);. This is a general format, and it is up to the user to replace 'insert_graph_name' with the actual graph name and 'variable_name' with the parameter to be displayed.
Software Support
Library Description
This library contains API for Barometer 12 Click driver.
Key functions:
barometer12_inv_invpres_calib- Barometer 12 inverse process data function.barometer12_get_raw_data- Barometer 12 get RAW data function.barometer12_get_press_and_temp- Barometer 12 get pressure and temperature function.
Open Source
Code example
The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.
/*!
* @file main.c
* @brief Barometer 12 Click example
*
* # Description
* This library contains API for the Barometer 12 Click driver.
* The library initializes and defines the I2C bus drivers
* to write and read data from registers.
* This demo application shows an example of
* atmospheric pressure and temperature measurement.
*
* The demo application is composed of two sections :
*
* ## Application Init
* The initialization of the I2C module and log UART.
* After driver initialization and default settings,
* the app display device ID.
*
* ## Application Task
* This is an example that shows the use of a Barometer 12 Click board™.
* Logs the atmospheric pressure [ Pa ] and temperature [ degree Celsius ] data.
* Results are being sent to the Usart Terminal where you can track their changes.
*
* @author Stefan Ilic
*
*/
#include "board.h"
#include "log.h"
#include "barometer12.h"
static barometer12_t barometer12;
static log_t logger;
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
barometer12_cfg_t barometer12_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.
barometer12_cfg_setup( &barometer12_cfg );
BAROMETER12_MAP_MIKROBUS( barometer12_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == barometer12_init( &barometer12, &barometer12_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( BAROMETER12_ERROR == barometer12_default_cfg ( &barometer12 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
Delay_ms ( 100 );
static uint16_t device_id;
err_t err_flag = barometer12_get_device_id( &barometer12, &device_id );
if ( BAROMETER12_ERROR == err_flag )
{
log_error( &logger, " Communication Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
log_printf( &logger, " Device ID : 0x%.4X \r\n", device_id );
log_printf( &logger, "----------------------------\r\n" );
Delay_ms ( 1000 );
log_info( &logger, " Application Task " );
}
void application_task ( void )
{
float pressure;
float temperature;
barometer12_get_press_and_temp( &barometer12, &pressure, &temperature );
log_printf( &logger, " Pressure : %.2f Pa\r\n", pressure );
log_printf( &logger, " Temperature : %.2f C\r\n", temperature );
log_printf( &logger, "----------------------------\r\n" );
Delay_ms ( 1000 );
}
int main ( void )
{
/* Do not remove this line or clock might not be set correctly. */
#ifdef PREINIT_SUPPORTED
preinit();
#endif
application_init( );
for ( ; ; )
{
application_task( );
}
return 0;
}
// ------------------------------------------------------------------------ END
