Proactively monitor and respond to unexpected movements and vibrations with 801S and STM32F429NI
Shaking up the industry
Published Oct 05, 2023
Click board™
Vibra sense Click
Dev Board
UNI-DS v8
Compiler
NECTO Studio
MCU
STM32F429NI
A vibration and shock detection solution opens the door to enhanced control and safety by providing real-time insights into dynamic environmental conditions
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Hardware Overview
How does it work?
Vibra sense Click is based on the 801S, a shock sensor from Sencera. To eliminate signal noise, the sensor's output uses a pull-up configuration alongside quad 2-input NAND Schmitt Trigger, the CD4093BC from ON Semiconductor, which is necessary as the output must become a square wave. Two of its 2-input gates and the potentiometer are used to clean the noise and set the interrupt threshold. With this potentiometer, you can set the force necessary to activate the Vibra sense Click. The sensor is extremely sensitive
to movements such as a light tap or vibration. Unlike many other sensors that use a mechanical switching element, this one uses a resistive element that changes resistance with motion. The Vibra Sense Click uses digital output over interrupt dedicated pin INT to communicate to the host MCU over a mikroBUS™ socket. In addition, this Click board™ features EN, an enable pin that lets you turn off the outputs of the 801S sensor. For a visual presentation of shock detection, this Click board™ features a VIBRA LED that will light
according to the vibration and the potentiometer-set threshold. This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC 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
UNI-DS 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 STM32, Kinetis, TIVA, CEC, MSP, PIC, dsPIC, PIC32, and AVR MCUs regardless of their number of pins, and a broad set of unique functions, such as the first-ever embedded debugger/programmer over WiFi. 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, UNI-DS v8 provides a fluid and immersive working experience, allowing access anywhere and under any
circumstances at any time. Each part of the UNI-DS 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. UNI-DS 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)
2048
Silicon Vendor
STMicroelectronics
Pin count
216
RAM (Bytes)
262144
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Schematic
Step by step
Project assembly
Start by selecting your development board and Click board™. Begin with the UNI-DS v8 as your development board.
Track your results in real time
Application Output
After pressing the "FLASH" button on the left-side panel, it is necessary to open the UART terminal to display the achieved results. By clicking on the Tools icon in the right-hand panel, multiple different functions are displayed, among which is the UART Terminal. Click on the offered "UART Terminal" icon.
Once the UART terminal is opened, the window takes on a new form. At the top of the tab are two buttons, one for adjusting the parameters of the UART terminal and the other for connecting the UART terminal. The tab's lower part is reserved for displaying the achieved results. Before connecting, the terminal has a Disconnected status, indicating that the terminal is not yet active. Before connecting, it is necessary to check the set parameters of the UART terminal. Click on the "OPTIONS" button.
In the newly opened UART Terminal Options field, we check if the terminal settings are correct, such as the set port and the Baud rate of UART communication. If the data is not displayed properly, it is possible that the Baud rate value is not set correctly and needs to be adjusted to 115200. If all the parameters are set correctly, click on "CONFIGURE".
The next step is to click on the "CONNECT" button, after which the terminal status changes from Disconnected to Connected in green, and the data is displayed in the Received data field.
Software Support
Library Description
This library contains API for Vibra sense Click driver.
Key functions:
vibrasense_check_interrupt- Check interrupt functionvibrasense_reset- Reset vibra sense function
Open Source
Code example
This example can be found in NECTO Studio. Feel free to download the code, or you can copy the code below.
/*!
* \file
* \brief Vibra sense Click example
*
* # Description
* This is a example which demonstrates the use of Vibra sense Click board.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Configuring clicks and log objects.
*
* ## Application Task
* It detects vibrations and enables PWM and writes log according to them.
*
* \author MikroE Team
*
*/
// ------------------------------------------------------------------- INCLUDES
#include "board.h"
#include "log.h"
#include "vibrasense.h"
// ------------------------------------------------------------------ VARIABLES
static vibrasense_t vibrasense;
static log_t logger;
// ------------------------------------------------------- ADDITIONAL FUNCTIONS
// ------------------------------------------------------ APPLICATION FUNCTIONS
void application_init ( void )
{
log_cfg_t log_cfg;
vibrasense_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_printf(&logger, "- Application Init -\r\n");
// Click initialization.
vibrasense_cfg_setup( &cfg );
VIBRASENSE_MAP_MIKROBUS( cfg, MIKROBUS_1 );
vibrasense_init( &vibrasense, &cfg );
Delay_ms( 100 );
log_printf(&logger, "--------------------\r\n");
log_printf(&logger, " Vibra sense Click \r\n");
log_printf(&logger, "--------------------\r\n");
vibrasense_set_mode( &vibrasense, VIBRASENSE_ENABLE );
Delay_ms( 100 );
}
void application_task ( void )
{
if ( vibrasense_check_interrupt( &vibrasense ) )
{
log_printf(&logger, " TILT !!! \r\n");
log_printf(&logger, "--------------------\r\n");
Delay_ms( 100 );
}
}
void main ( void )
{
application_init( );
for ( ; ; )
{
application_task( );
}
}
// ------------------------------------------------------------------------ END
