Intermediate
30 min

Incline to excellence with SCL3300 and STM32F107VCT6 and master tilt like never before

Achieve perfect alignment

Inclinometer Click with EasyMx PRO v7a for STM32

Published May 31, 2023

Click board™

Inclinometer Click

Dev Board

EasyMx PRO v7a for STM32

Compiler

NECTO Studio

MCU

STM32F107VCT6

Take advantage of the BEST-IN-CLASS capabilities of motion detection!

A

A

Hardware Overview

How does it work?

Inclinometer Click is based on the SCL3300, a high-performance, best-in-class inclinometer sensor component from Murata. The SCL3300 includes an acceleration sensing element that consists of four acceleration-sensitive masses and an Application-Specific Integrated Circuit (ASIC). The sensing elements are manufactured using the Murata proprietary High Aspect Ratio (HAR) 3D-MEMS process, making extraordinarily stable and low noise capacitive sensors. Acceleration causes a capacitance change converted into a voltage change in the signal conditioning ASIC. The SCL3300 has extremely stable output over various temperatures and vibrations. The inclination measurement of SCL3300 is based on the angle measurements between the component and the

gravity vector in a static environment. Note that no other accelerations should be present to measure angles correctly. The SCL3300 has four user-selectable measurement modes for sensor performance optimization for different applications and their requirements. Suppose the whole 360° operation is needed. In that case, the user should select either Mode 1 or Mode 2, where the limitations regarding the maximum inclination angle don't exist (inclination ranges are limited in Mode 3 and Mode 4 to a maximum ±10° inclination). The SCL3300 communicates with MCU using the standard SPI serial interface with a maximum frequency of 4MHz, and a proper logic voltage level conversion performed by the appropriate voltage level translator. 

The VIO logic level provides a needed reference voltage for one side of the TXB0106, a 6-bit bidirectional level shifting, and a voltage translator with automatic direction sensing from Texas Instruments. On another side of the level shifter, the reference voltage is taken from the 3.3V mikroBUS™ power rail. 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. However, the 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.

Inclinometer Click top side image
Inclinometer Click lateral side image
Inclinometer Click bottom side image

Features overview

Development board

EasyMx PRO v7a for STM32 is the seventh generation of ARM development boards specially designed to develop embedded applications rapidly. It supports a wide range of 32-bit ARM microcontrollers from STMicroelectronics and a broad set of unique functions, such as the first-ever embedded debugger/programmer over USB-C. 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. With two different connectors for each port, EasyMx PRO v7afor STM32 allows you to connect accessory boards, sensors, and custom electronics more efficiently than ever. Each part of the EasyMx

PRO v7a for STM32 development board contains the components necessary for the most efficient operation of the same board. In addition to the advanced integrated CODEGRIP programmer/debugger module, which offers many valuable programming/debugging options and seamless integration with the Mikroe software environment, the board also includes a clean and regulated power supply block for the development board. It can use a wide range of external power sources, including an external 12V power supply, 7-23V AC or 9-32V DC via DC connector/screw terminals, and a power source via the USB Type-C (USB-C) connector. Communication options such as USB-UART, USB-HOST/DEVICE, CAN, and

Ethernet are also included, including the well-established mikroBUS™ standard, one display option for the TFT board line of products, and a standard TQFP socket for the seventh-generation MCU cards. This socket covers 32-bit ARM MCUs like STM32 Cortex-M3, -M7, and -M4 MCUs. EasyMx PRO v7afor STM32 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.

EasyMx PRO v7a for STM32 double side image

Microcontroller Overview

MCU Card / MCU

default

Type

7th Generation

Architecture

ARM Cortex-M3

MCU Memory (KB)

10

Silicon Vendor

STMicroelectronics

Pin count

100

RAM (Bytes)

100

Used MCU Pins

mikroBUS™ mapper

NC
NC
AN
NC
NC
RST
SPI Chip Select
PD13
CS
SPI Clock
SCK
SCK
SPI Data OUT
MISO
MISO
SPI Data IN
MOSI
MOSI
Power Supply
3.3V
3.3V
Ground
GND
GND
NC
NC
PWM
NC
NC
INT
NC
NC
TX
NC
NC
RX
NC
NC
SCL
NC
NC
SDA
Power Supply
5V
5V
Ground
GND
GND
1

Take a closer look

Click board™ Schematic

Inclinometer Click Schematic schematic

Step by step

Project assembly

EasyMx PRO v7a for STM32 front image hardware assembly

Start by selecting your development board and Click board™. Begin with the EasyMx PRO v7a for STM32 as your development board.

EasyMx PRO v7a for STM32 front image hardware assembly
RTC 19 Click front image hardware assembly
EasyMx PRO v7 for STM32 MCUcard with STM32F207VGT6 front image hardware assembly
EasyMx PRO v7a for STM32 MB 1 - upright/background hardware assembly
Necto image step 2 hardware assembly
Necto image step 3 hardware assembly
Necto image step 4 hardware assembly
NECTO Compiler Selection Step Image hardware assembly
NECTO Output Selection Step Image hardware assembly
Necto image step 6 hardware assembly
EasyMx PRO v7a for STM32 MCU Selection Necto Step hardware assembly
EasyPIC PRO v7a Display Selection Necto Step hardware assembly
Necto image step 9 hardware assembly
Necto image step 10 hardware assembly
Necto PreFlash Image hardware assembly

Track your results in real time

Application Output via UART Mode

1. Once the code example is loaded, pressing the "FLASH" button initiates the build process, and programs it on the created setup.

2. After the programming is completed, click on the Tools icon in the upper-right panel, and select the UART Terminal.

3. After opening the UART Terminal tab, first check the baud rate setting in the Options menu (default is 115200). If this parameter is correct, activate the terminal by clicking the "CONNECT" button.

4. Now terminal status changes from Disconnected to Connected in green, and the data is displayed in the Received data field.

UART_Application_Output

Software Support

Library Description

This library contains API for Inclinometer Click driver.

Key functions:

  • inclinometer_cfg_setup - Config Object Initialization function.
  • inclinometer_init - Initialization function.
  • inclinometer_default_cfg - Click Default Configuration 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 Inclinometer Click example
 *
 * # Description
 * This example showcases ability of device to configure it for 
 * resolution and read Axis/Angle/Temperature data.
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * Initialization of the Host communication modules(UART, SPI). 
 * Sets default configuration where powe-up sequence is done with 
 * selecting MODE1 and enabling output on Angle channels. 
 * Read status and checks WhoAmI register. In the end example type
 * is selected( for reading Axes, Angles or Temperature data ).
 *
 * ## Application Task
 * Depending on the example type selected task is reading different data.
 * If EXAMPLE_AXIS selected it reads 3 axes values in range of -1<->1g. 
 * If EXAMPLE_ANGLE is slected it reads 3 angle values in range of 
 * -90<->90deg. EXAMPLE_TEMP reads temperature data from device in degC.
 *
 * @note
 * For Click board to work on ARM boards you need to pull-up MISO line.
 *
 * @author Luka Filipovic
 *
 */

#include "board.h"
#include "log.h"
#include "inclinometer.h"

/**
 * @brief Example selector values.
 * @details Enum for selecting example type.
 */
typedef enum
{
    EXAMPLE_AXIS = 1,
    EXAMPLE_ANGLE,
    EXAMPLE_TEMP

} inclinometer_example_t;

static inclinometer_t inclinometer;
static log_t logger;
static inclinometer_example_t example_type;

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    inclinometer_cfg_t inclinometer_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.
    inclinometer_cfg_setup( &inclinometer_cfg );
    INCLINOMETER_MAP_MIKROBUS( inclinometer_cfg, MIKROBUS_1 );
    err_t init_flag  = inclinometer_init( &inclinometer, &inclinometer_cfg );
    if ( SPI_MASTER_ERROR == init_flag )
    {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }
    //Powerup
    init_flag = inclinometer_default_cfg ( &inclinometer );
    if ( INCLINOMETER_ERROR == init_flag )
    {
        log_error( &logger, " Default configuration. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }
    
    example_type = EXAMPLE_AXIS;
    Delay_ms( 1000 );
    log_info( &logger, " Application Task " );
}

void application_task ( void )
{
    switch ( example_type )
    {
        case EXAMPLE_AXIS:
        {
            inclinometer_accel_t axes_data;
            inclinometer_get_axes( &inclinometer, &axes_data );
            log_printf( &logger, "> ACCEL X[g]: %.2f\r\n", axes_data.x );
            log_printf( &logger, "> ACCEL Y[g]: %.2f\r\n", axes_data.y );
            log_printf( &logger, "> ACCEL Z[g]: %.2f\r\n", axes_data.z );
            break;
        }
        case EXAMPLE_ANGLE:
        {
            inclinometer_accel_t angle_data;
            inclinometer_get_angle( &inclinometer, &angle_data );
            log_printf( &logger, "> ANGLE X[deg]: %.2f\r\n", angle_data.x );
            log_printf( &logger, "> ANGLE Y[deg]: %.2f\r\n", angle_data.y );
            log_printf( &logger, "> ANGLE Z[deg]: %.2f\r\n", angle_data.z );
            break;
        }
        case EXAMPLE_TEMP:
        {
            float temp_data = 0;
            inclinometer_get_temperature( &inclinometer, &temp_data );
            log_printf( &logger, "> Temperature[degC]: %.2f\r\n", temp_data );
            break;
        }
        default:
        {
            log_error( &logger, " Example type." );
            break;
        }
    }
    log_printf( &logger, "*************************************\r\n" );
    Delay_ms( 100 );
}

void main ( void )
{
    application_init( );

    for ( ; ; )
    {
        application_task( );
    }
}

// ------------------------------------------------------------------------ END

Additional Support

Resources

Love this project?

'Buy This Kit' button takes you directly to the shopping cart where you can easily add or remove products.