Customize motion experience with MMA8491Q and STM32F031K6
Accurate motion insights at your fingertips
Published Oct 01, 2024
Click board™
TILTnSHAKE Click
Dev. board
Nucleo 32 with STM32F031K6 MCU
Compiler
NECTO Studio
MCU
STM32F031K6
Transform your solution with a cutting-edge three-axis digital accelerometer, unlock precise motion sensing, and elevate performance
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Hardware Overview
How does it work?
Tilt-n-Shake Click is based on the MMA8491Q, a multifunctional 3-axis digital accelerometer from NXP Semiconductors that enables the lowest power consumption for low data rate accelerometer applications. It can accommodate two accelerometer configurations, acting as a digital output accelerometer or a 45° tilt sensor with the addition of a visual indication of the tilt axis. The MMA8491Q is flexible and useful for various applications beyond smart metering in which orientation must be accurately measured and for tracking assets in business and industrial applications. This Click board™ communicates with MCU using the standard I2C 2-Wire interface to read data and configure settings, supporting Fast Mode up to 400kHz. The MMA8491Q can be
enabled or disabled through the EN pin routed to the CS pin of the mikroBUS™ socket, hence, offering a switch operation to turn ON/OFF the accelerometer system. Also, the MMA8491Q must be in an Active state of operation when the data is being polled (EN pin must be set in the high logic state). The 14-bit ±8g accelerometer data can be read via the I2C 2-Wire interface with a 1 mg/LSB sensitivity. On the other hand, as a 45° tilt sensor, the MMA8491Q offers a single line output per axis through the X, Y, and Z pins. These pins are asserted whenever the tilt angle in the respective axis is greater than 45°. The information from these pins can be processed through the INT pin of the mikroBUS™ socket, allowing the user to select which tilt axes to detect, or it is also possible
to use them externally in the configuration that best suits the user through an additional unpopulated tilt header. The population makes tilt axis information selection of corresponding X, Y, and Z jumpers marked with INT SEL. It is also possible to visually identify each of these axes through onboard yellow LEDs. This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used as a reference for further development.
Features overview
Development board
Nucleo 32 with STM32F031K6 MCU board provides an affordable and flexible platform for experimenting with STM32 microcontrollers in 32-pin packages. Featuring Arduino™ Nano connectivity, it allows easy expansion with specialized shields, while being mbed-enabled for seamless integration with online resources. The
board includes an on-board ST-LINK/V2-1 debugger/programmer, supporting USB reenumeration with three interfaces: Virtual Com port, mass storage, and debug port. It offers a flexible power supply through either USB VBUS or an external source. Additionally, it includes three LEDs (LD1 for USB communication, LD2 for power,
and LD3 as a user LED) and a reset push button. The STM32 Nucleo-32 board is supported by various Integrated Development Environments (IDEs) such as IAR™, Keil®, and GCC-based IDEs like AC6 SW4STM32, making it a versatile tool for developers.
Microcontroller Overview
MCU Card / MCU
Architecture
ARM Cortex-M0
MCU Memory (KB)
32
Silicon Vendor
STMicroelectronics
Pin count
32
RAM (Bytes)
4096
You complete me!
Accessories
Click Shield for Nucleo-32 is the perfect way to expand your development board's functionalities with STM32 Nucleo-32 pinout. The Click Shield for Nucleo-32 provides two mikroBUS™ sockets to add any functionality from our ever-growing range of Click boards™. We are fully stocked with everything, from sensors and WiFi transceivers to motor control and audio amplifiers. The Click Shield for Nucleo-32 is compatible with the STM32 Nucleo-32 board, providing an affordable and flexible way for users to try out new ideas and quickly create prototypes with any STM32 microcontrollers, choosing from the various combinations of performance, power consumption, and features. The STM32 Nucleo-32 boards do not require any separate probe as they integrate the ST-LINK/V2-1 debugger/programmer and come with the STM32 comprehensive software HAL library and various packaged software examples. This development platform provides users with an effortless and common way to combine the STM32 Nucleo-32 footprint compatible board with their favorite Click boards™ in their upcoming projects.
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 Nucleo 32 with STM32F031K6 MCU as your development board.
Software Support
Library Description
This library contains API for Tilt-n-Shake Click driver.
Key functions:
tiltnshake_read_status_and_axis- Function for read status and axistiltnshake_conversion- Function for conversiontiltnshake_enable- Function for enabled chip
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
* \brief TiltNshake Click example
*
* # Description
* This application is multifunctional 3-axis digital accelerometer
* that can also be configured as a 45-degree Tilt sensor.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Initializes device.
*
* ## Application Task
* Reads 3-axis accelerometer measurement and logs results on the USB UART.
*
* \author MikroE Team
*
*/
#include "board.h"
#include "log.h"
#include "tiltnshake.h"
static tiltnshake_t tiltnshake;
static log_t logger;
void application_init ( void )
{
log_cfg_t log_cfg;
tiltnshake_cfg_t cfg;
/**
* 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.
tiltnshake_cfg_setup( &cfg );
TILTNSHAKE_MAP_MIKROBUS( cfg, MIKROBUS_1 );
tiltnshake_init( &tiltnshake, &cfg );
log_info( &logger, " Application Task " );
}
void application_task ( void )
{
uint8_t status = 0;
float out_x = 0;
float out_y = 0;
float out_z = 0;
tiltnshake_enable( &tiltnshake );
tiltnshake_read_status_and_axis( &tiltnshake, &status, &out_x, &out_y, &out_z );
tiltnshake_disable( &tiltnshake );
if ( TILTNSHAKE_DATA_READY == status )
{
log_printf( &logger, " X: %.2f\r\n", out_x );
log_printf( &logger, " Y: %.2f\r\n", out_y );
log_printf( &logger, " Z: %.2f\r\n", out_z );
log_printf( &logger, "----------\r\n");
Delay_ms ( 500 );
}
Delay_ms ( 500 );
}
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
Additional Support
Resources
Category:Motion
