Intermediate
30 min

Trust in MS5525DSO and PIC32MZ2048EFM100 combo to deliver the real-time pressure data you need

Manometer: Pressure's best friend

Manometer 2 Click with Curiosity PIC32 MZ EF

Published Oct 12, 2023

Click board™

Manometer 2 Click

Dev. board

Curiosity PIC32 MZ EF

Compiler

NECTO Studio

MCU

PIC32MZ2048EFM100

Step into the world of precise pressure measurement with our innovative manometer, engineered to enhance the quality and performance of your systems and processes.

A

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Hardware Overview

How does it work?

Manometer 2 Click is based on the MS5525DSO, a digital pressure sensor based on leading MEMS technology from TE Connectivity. The click is designed to run on a 3.3V power supply. It communicates with the target microcontroller over an I2C or SPI interface. The MS5525DSO is a new Digital Small Outline pressure sensor generation with SPI and I2C bus interface designed for high-volume OEM users. The sensor module includes a pressure sensor and an ultra

low power 24-bit ∆Σ ADC with internal factory-calibrated coefficients. It provides a 24-bit digital pressure and temperature value and different operation modes that allow users to optimize conversion speed and current consumption. The MS5525DSO consists of a piezo-resistive sensor and a sensor interface IC. The main function of the MS5525DSO is to convert the uncompensated analog output voltage from the piezo-resistive pressure sensor to a 24-bit digital value and

provide a 24-bit digital value for the temperature of the sensor. Manometer 2 click measures the absolute pressure of 1PSI max through the barbed port. 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.

Manometer 2 Click top side image
Manometer 2 Click bottom side image

Features overview

Development board

Curiosity PIC32 MZ EF development board is a fully integrated 32-bit development platform featuring the high-performance PIC32MZ EF Series (PIC32MZ2048EFM) that has a 2MB Flash, 512KB RAM, integrated FPU, Crypto accelerator, and excellent connectivity options. It includes an integrated programmer and debugger, requiring no additional hardware. Users can expand

functionality through MIKROE mikroBUS™ Click™ adapter boards, add Ethernet connectivity with the Microchip PHY daughter board, add WiFi connectivity capability using the Microchip expansions boards, and add audio input and output capability with Microchip audio daughter boards. These boards are fully integrated into PIC32’s powerful software framework, MPLAB Harmony,

which provides a flexible and modular interface to application development a rich set of inter-operable software stacks (TCP-IP, USB), and easy-to-use features. The Curiosity PIC32 MZ EF development board offers expansion capabilities making it an excellent choice for a rapid prototyping board in Connectivity, IOT, and general-purpose applications.

Curiosity PIC32MZ EF double side image

Microcontroller Overview

MCU Card / MCU

default

Architecture

PIC32

MCU Memory (KB)

2048

Silicon Vendor

Microchip

Pin count

100

RAM (Bytes)

524288

Used MCU Pins

mikroBUS™ mapper

NC
NC
AN
NC
NC
RST
SPI Chip Select
RPD4
CS
SPI Clock
RPD1
SCK
SPI Data OUT
RPD14
MISO
SPI Data IN
RPD3
MOSI
Power Supply
3.3V
3.3V
Ground
GND
GND
NC
NC
PWM
NC
NC
INT
NC
NC
TX
NC
NC
RX
I2C Clock
RPA14
SCL
I2C Data
RPA15
SDA
NC
NC
5V
Ground
GND
GND
1

Take a closer look

Click board™ Schematic

Manometer 2 Click Schematic schematic

Step by step

Project assembly

Curiosity PIC32MZ EF front image hardware assembly

Start by selecting your development board and Click board™. Begin with the Curiosity PIC32 MZ EF as your development board.

Curiosity PIC32MZ EF front image hardware assembly
GNSS2 Click front image hardware assembly
Prog-cut hardware assembly
GNSS2 Click complete accessories setup image hardware assembly
Curiosity PIC32 MZ EF MB 1 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
Curiosity PIC32 MZ EF 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 Manometer 2 Click driver.

Key functions:

  • manometer2_read_coef - Generic read data 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 
 * \brief Manometer2 Click example
 * 
 * # Description
 * This application is digital pressure sensor.
 *
 * The demo application is composed of two sections :
 * 
 * ## Application Init 
 * Initialization driver enable's - I2C,
 * initialization Manometer 2 sensor MS5525DSO-SB001GS by read coeffitient value
 * and start write log.
 * 
 * ## Application Task  
 * This is a example which demonstrates the use of Manometer 2 Click board.
 * Measured pressure and temperature value from sensor, calculate pressure [ PSI ] and temperature [ �C ],
 * results are being sent to the Usart Terminal where you can track their changes.
 * All data logs on usb uart for aproximetly every 3 sec when the data value changes.
 * 
 * \author MikroE Team
 *
 */
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "log.h"
#include "manometer2.h"

// ------------------------------------------------------------------ VARIABLES

static manometer2_t manometer2;
static log_t logger;

// ------------------------------------------------------ APPLICATION FUNCTIONS

void application_init ( void )
{
    log_cfg_t log_cfg;
    manometer2_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.

    manometer2_cfg_setup( &cfg );
    MANOMETER2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    manometer2_init( &manometer2, &cfg );

    manometer2_read_coef( &manometer2 );
    log_printf( &logger, "        Initialization \r\n" );
    log_printf( &logger, "----------------------------- \r\n" );
    Delay_100ms( );
}

void application_task (  )
{
    float temperature;
    float pressure;

    temperature = manometer2_get_temperature( &manometer2, MANOMETER2_CONVERT_4096 );
    Delay_10ms( );

    pressure = manometer2_get_pressure( &manometer2, MANOMETER2_CONVERT_4096 );
    Delay_10ms( );

    log_printf( &logger, " Pressure :  %.2f PSI \r\n", pressure );
    log_printf( &logger, " Temperature: %.2f C \r\n", temperature );
    log_printf( &logger, "----------------------------- \r\n" );

    Delay_1sec( );
}

void main ( void )
{
    application_init( );

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

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

Additional Support

Resources

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