Experience next-generation of motion sensing through IIS3DWB and PIC32MZ1024EFH064
Precision in every dimension: Elevate your motion sensing experience
Published Oct 08, 2023
Click board™
Accel 14 Click
Dev Board
PIC32MZ clicker
Compiler
NECTO Studio
MCU
PIC32MZ1024EFH064
We aim to empower your projects with the precision of three-axis acceleration technology, allowing you to measure, analyze, and excel in motion-related tasks
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Hardware Overview
How does it work?
Accel 14 Click is based on the IIS3DWB, an ultra-wide bandwidth, low-noise, 3-axis digital vibration sensor from STMicroelectronics. The wide bandwidth, low noise, and very stable and repeatable sensitivity, together with the capability of operating over an extended temperature range, make this device particularly suitable for vibration monitoring in industrial applications. The IIS3DWB has a selectable full-scale acceleration range of ±2/±4/±8/±16 g and is capable of measuring accelerations with a bandwidth of up to 6 kHz with an output data rate of 26.7 kHz. A 3 kB first-in, first-out (FIFO) buffer is integrated into the device to avoid any data loss and limit the host processor's intervention. Accel 14 Click offers two possible operating configurations: Power-Down and Normal Mode. IIS3DWB has a voltage supply range from 2.1V to 3.6V. To avoid potential conflicts, it is recommended to set the lines connected to the device IO pins to a high-impedance state on the
host side during the power-on sequence. Furthermore, to guarantee the proper power-off of the device, it is recommended to maintain the duration of the VDD line to GND for at least 100 μs. After the power supply is applied, the IIS3DWB performs a 10 ms boot procedure to load the trimming parameters. After the boot is completed, the accelerometer is automatically configured in Power-Down mode. When the sensor is in Power-Down mode, almost all internal blocks of the device are switched off. The SPI digital interface remains active to allow communication with the device. The content of the configuration registers is preserved, and the output data registers are not updated, keeping the last data sampled in memory before going into Power-Down mode. When Accel 14 Click is set in Normal Mode, all three axes (X, Y, Z) are simultaneously active, and acceleration data can be read from the sensor concurrently for the 3-axis. The sensor provides
acceleration data at an output data rate of 26.667kHz. The IIS3DWB has been specifically designed to provide a wide bandwidth with a very flat frequency response in the passband and very high attenuation in the stopband to eliminate any frequency aliasing virtually. The device's functionality and measured acceleration data are accessible through the SPI interface. Also, the user can completely program functions such as the threshold and the timing of the two interrupt pins through the SPI digital interface. 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. Also, it 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
PIC32MZ Clicker is a compact starter development board that brings the flexibility of add-on Click boards™ to your favorite microcontroller, making it a perfect starter kit for implementing your ideas. It comes with an onboard 32-bit PIC32MZ microcontroller with FPU from Microchip, a USB connector, LED indicators, buttons, a mikroProg connector, and a header for interfacing with external electronics. Thanks to its compact design with clear and easy-recognizable silkscreen markings, it provides a fluid and immersive working experience, allowing access anywhere and under
any circumstances. Each part of the PIC32MZ Clicker development kit contains the components necessary for the most efficient operation of the same board. In addition to the possibility of choosing the PIC32MZ Clicker programming method, using USB HID mikroBootloader, or through an external mikroProg connector for PIC, dsPIC, or PIC32 programmer, the Clicker board also includes a clean and regulated power supply module for the development kit. The USB Micro-B connection can provide up to 500mA of current, which is more than enough to operate all onboard
and additional modules. All communication methods that mikroBUS™ itself supports are on this board, including the well-established mikroBUS™ socket, reset button, and several buttons and LED indicators. PIC32MZ Clicker is an integral part of the Mikroe ecosystem, allowing you to create a new application in minutes. Natively supported by Mikroe software tools, it covers many aspects of prototyping 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
Architecture
PIC32
MCU Memory (KB)
1024
Silicon Vendor
Microchip
Pin count
64
RAM (Bytes)
524288
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 PIC32MZ clicker as your development board.
Track your results in real time
Application Output
1. Once the code example is loaded, pressing the "DEBUG" button initiates the build process, programs it on the created setup, and enters Debug mode.
2. After the programming is completed, a header with buttons for various actions within the IDE becomes visible. Clicking the green "PLAY" button starts reading the results achieved with the Click board™. The achieved results are displayed in the Application Output tab.
Software Support
Library Description
This library contains API for Accel 14 Click driver.
Key functions:
accel14_check_accel_data_ready- Check accel data ready functionaccel14_get_temperature- Get temperature functionaccel14_read_accel- Read Accel data 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 Accel14 Click example
*
* # Description
* This application measures accelermeter data.
*
* The demo application is composed of two sections :
*
* ## Application Init
* SPI, check device ID, sets default configuration, also write log.
*
* ## Application Task
* This is an example which demonstrates the use of Accel 14 Click board.
* Measured and display Acceleration data for X-axis, Y-axis and Z-axis.
* Results are being sent to the Usart Terminal where you can track their changes.
* All data logs write on USB uart changes for every 1 sec.
*
* \author MikroE Team
*
*/
// ------------------------------------------------------------------- INCLUDES
#include "board.h"
#include "log.h"
#include "accel14.h"
// ------------------------------------------------------------------ VARIABLES
static accel14_t accel14;
static log_t logger;
// ------------------------------------------------------ APPLICATION FUNCTIONS
void application_init ( void )
{
log_cfg_t log_cfg;
accel14_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.
accel14_cfg_setup( &cfg );
ACCEL14_MAP_MIKROBUS( cfg, MIKROBUS_1 );
accel14_init( &accel14, &cfg );
Delay_ms( 100 );
log_printf( &logger, " Driver init done \r\n" );
log_printf( &logger, "--------------------- \r\n" );
log_printf( &logger, " Communication check \r\n" );
if ( accel14_check_communication( &accel14 ) == ACCEL14_CHECK_ID_SUCCESS )
{
log_printf( &logger, " SUCCESS \r\n" );
log_printf( &logger, "--------------------- \r\n" );
}
else
{
log_printf( &logger, " ERROR \r\n" );
log_printf( &logger, " Reset the device \r\n" );
log_printf( &logger, "--------------------- \r\n" );
for ( ; ; );
}
log_printf( &logger, " Set default config. \r\n" );
log_printf( &logger, "--------------------- \r\n" );
accel14_default_cfg( &accel14 );
Delay_ms( 100 );
log_printf( &logger, " Acceleration data: \r\n" );
log_printf( &logger, "--------------------- \r\n" );
}
void application_task ( void )
{
accel14_accel_t accel_data;
uint8_t data_ready_flag;
data_ready_flag = accel14_check_accel_data_ready( &accel14 );
Delay_ms( 10 );
if ( data_ready_flag == ACCEL14_NEW_DATA_AVAILABLE )
{
accel14_get_data ( &accel14, &accel_data );
log_printf( &logger, " Accel X : %d \r\n", accel_data.x );
log_printf( &logger, " Accel Y : %d \r\n", accel_data.y );
log_printf( &logger, " Accel Z : %d \r\n", accel_data.z );
log_printf( &logger, "--------------------- \r\n" );
Delay_ms( 1000 );
}
}
void main ( void )
{
application_init( );
for ( ; ; )
{
application_task( );
}
}
// ------------------------------------------------------------------------ END
