Intermediate
30 min

Incline to excellence with SCL3300 and PIC32MZ1024EFH064 and master tilt like never before

Achieve perfect alignment

Inclinometer Click with PIC32MZ clicker

Published May 31, 2023

Click board™

Inclinometer Click

Dev. board

PIC32MZ clicker

Compiler

NECTO Studio

MCU

PIC32MZ1024EFH064

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

A

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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

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.

PIC32MZ clicker double side image

Microcontroller Overview

MCU Card / MCU

default

Architecture

PIC32

MCU Memory (KB)

1024

Silicon Vendor

Microchip

Pin count

64

RAM (Bytes)

524288

Used MCU Pins

mikroBUS™ mapper

NC
NC
AN
NC
NC
RST
SPI Chip Select
RG9
CS
SPI Clock
RG6
SCK
SPI Data OUT
RG7
MISO
SPI Data IN
RG8
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

PIC32MZ clicker front image hardware assembly

Start by selecting your development board and Click board™. Begin with the PIC32MZ clicker as your development board.

PIC32MZ clicker front image hardware assembly
GNSS2 Click front image hardware assembly
Prog-cut hardware assembly
Micro B Connector Clicker Access - upright/background hardware assembly
Necto image step 2 hardware assembly
Necto image step 3 hardware assembly
Necto image step 4 hardware assembly
Necto image step 5 hardware assembly
Necto image step 6 hardware assembly
Flip&Click PIC32MZ MCU step hardware assembly
Necto No Display image step 8 hardware assembly
Necto image step 9 hardware assembly
Necto image step 10 hardware assembly
Debug Image Necto Step hardware assembly

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 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

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