Intermediate
30 min

Chart a course into unexplored territories with ORG1510-MK05 and ATmega328P

Wherever you go, GPS knows

Nano GPS 2 Click with Arduino UNO Rev3

Published Feb 14, 2024

Click board™

Nano GPS 2 Click

Dev Board

Arduino UNO Rev3

Compiler

NECTO Studio

MCU

ATmega328P

Navigate confidently with the pinnacle of GPS excellence at your fingertips. Our solution blends precision and exploration, ensuring every step of your journey is guided by the highest level of accuracy.

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Hardware Overview

How does it work?

Nano GPS 2 Click uses the Multi Micro Hornet module from OriginGPS, the smallest GPS module with an incorporated on‐board antenna element that is perfectly matched to receiver front‐end, frequency trimmed to GPS band, and Right‐Hand Circularly Polarized (RHCP). Module possesses dual-stage LNA (Low Noise Amplifier), SAW (Surface Acoustic Wave) filter, RTC crystal, GNSS SoC, and RF shield. GNSS SoC on a module is a hybrid positioning processor that combines many constellation configurations to provide a high-performance navigation solution such as GPS, GLONASS, GALILEO, BEIDOU, SBAS, QZSS, DGPS, and AGPS, allowing integration in embedded solutions with low computing resources. The ORG1510-MK05 module supports operational modes that provide positioning information at reduced overall current consumption. The availability of GNSS signals in the operating

environment will also factor in the choice of power management modes. The user can choose a mode that provides the best trade‐off of performance versus power consumption. Several power management modes can be enabled via a command, such as Full Power-Continuous Mode (for best GNSS performance), Power Save Mode (to optimize power consumption), and Backup Mode (low quiescent power state where receiver operation is stopped). Nano GPS 2 Click operates with received signal levels down to ‐167dBm and can be affected by high absolute levels of RF signals out of the GNSS band, moderate levels of RF interference near the GNSS band, and low levels of RF noise in the GNSS band. It uses a standard UART port and, besides the commonly used UART RX, TX, RTS, and CTS Nano GPS 2 Click, also has FON and WKP pins, which are routed to the PWM and AN pins of the mikroBUS™ socket,

respectively. Integrated GPS SoC incorporating a high-performance microprocessor and sophisticated firmware keeps positioning the payload off the host, allowing integration in embedded solutions with low computing resources. Innovative architecture can detect changes in context, temperature, and satellite signals to achieve a state of near-continuous availability by maintaining and opportunistically updating its internal fine time, frequency, and satellite ephemeris data while consuming mere microwatts of battery power. 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.

Nano GPS 2 Click top side image
Nano GPS 2 Click bottom side image

Features overview

Development board

Arduino UNO is a versatile microcontroller board built around the ATmega328P chip. It offers extensive connectivity options for various projects, featuring 14 digital input/output pins, six of which are PWM-capable, along with six analog inputs. Its core components include a 16MHz ceramic resonator, a USB connection, a power jack, an

ICSP header, and a reset button, providing everything necessary to power and program the board. The Uno is ready to go, whether connected to a computer via USB or powered by an AC-to-DC adapter or battery. As the first USB Arduino board, it serves as the benchmark for the Arduino platform, with "Uno" symbolizing its status as the

first in a series. This name choice, meaning "one" in Italian, commemorates the launch of Arduino Software (IDE) 1.0. Initially introduced alongside version 1.0 of the Arduino Software (IDE), the Uno has since become the foundational model for subsequent Arduino releases, embodying the platform's evolution.

Arduino UNO Rev3 double side image

Microcontroller Overview

MCU Card / MCU

default

Architecture

AVR

MCU Memory (KB)

32

Silicon Vendor

Microchip

Pin count

28

RAM (Bytes)

2048

You complete me!

Accessories

Click Shield for Arduino UNO has two proprietary mikroBUS™ sockets, allowing all the Click board™ devices to be interfaced with the Arduino UNO board without effort. The Arduino Uno, a microcontroller board based on the ATmega328P, provides an affordable and flexible way for users to try out new concepts and build prototypes with the ATmega328P microcontroller from various combinations of performance, power consumption, and features. The Arduino Uno has 14 digital input/output pins (of which six can be used as PWM outputs), six analog inputs, a 16 MHz ceramic resonator (CSTCE16M0V53-R0), a USB connection, a power jack, an ICSP header, and reset button. Most of the ATmega328P microcontroller pins are brought to the IO pins on the left and right edge of the board, which are then connected to two existing mikroBUS™ sockets. This Click Shield also has several switches that perform functions such as selecting the logic levels of analog signals on mikroBUS™ sockets and selecting logic voltage levels of the mikroBUS™ sockets themselves. Besides, the user is offered the possibility of using any Click board™ with the help of existing bidirectional level-shifting voltage translators, regardless of whether the Click board™ operates at a 3.3V or 5V logic voltage level. Once you connect the Arduino UNO board with our Click Shield for Arduino UNO, you can access hundreds of Click boards™, working with 3.3V or 5V logic voltage levels.

Click Shield for Arduino UNO accessories 1 image

Used MCU Pins

mikroBUS™ mapper

Wake Up
PC0
AN
Module Enable
PD2
RST
UART CTS
PB2
CS
NC
NC
SCK
NC
NC
MISO
NC
NC
MOSI
Power Supply
3.3V
3.3V
Ground
GND
GND
Force Enable
PD6
PWM
UART RTS
PC3
INT
UART TX
PD0
TX
UART RX
PD1
RX
NC
NC
SCL
NC
NC
SDA
NC
NC
5V
Ground
GND
GND
1

Take a closer look

Schematic

Nano GPS 2 Click Schematic schematic

Step by step

Project assembly

Click Shield for Arduino UNO front image hardware assembly

Start by selecting your development board and Click board™. Begin with the Arduino UNO Rev3 as your development board.

Click Shield for Arduino UNO front image hardware assembly
Arduino UNO Rev3 front image hardware assembly
Barometer 13 Click front image hardware assembly
Prog-cut hardware assembly
Arduino UNO Rev3 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 image step 5 hardware assembly
Necto image step 6 hardware assembly
Arduino UNO 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 via Debug Mode

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.

DEBUG_Application_Output

Software Support

Library Description

This library contains API for Nano GPS 2 Click driver.

Key functions:

  • nanogps2_set_en_pin_state - Set EN pin

  • nanogps2_module_wakeup - Wake-up module

  • nanogps2_generic_parser - Generic parser 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 NanoGps2 Click example
 * 
 * # Description
 * This example reads and processes data from Nano GPS 2 click.
 *
 * The demo application is composed of two sections :
 * 
 * ## Application Init 
 * Initializes driver and wake-up module.
 * 
 * ## Application Task  
 * Reads the received data and parses it.
 * 
 * ## Additional Function
 * - nanogps2_process ( ) - The general process of collecting data the module sends.
 * 
 * @note
 * Depending on the environmental conditions and the satellites availability
 * it may take some time for the module to receive the position fix.
 * 
 * \author MikroE Team
 *
 */
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "log.h"
#include "nanogps2.h"
#include "string.h"

#define PROCESS_COUNTER 10
#define PROCESS_RX_BUFFER_SIZE 600
#define PROCESS_PARSER_BUFFER_SIZE 600

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

static nanogps2_t nanogps2;
static log_t logger;

static char current_parser_buf[ PROCESS_PARSER_BUFFER_SIZE ];

// ------------------------------------------------------- ADDITIONAL FUNCTIONS

static void nanogps2_process ( void )
{
    int32_t rsp_size;
    uint16_t rsp_cnt = 0;
    
    char uart_rx_buffer[ PROCESS_RX_BUFFER_SIZE ] = { 0 };
    uint16_t check_buf_cnt;
    uint8_t process_cnt = PROCESS_COUNTER;
    
    // Clear parser buffer
    memset( current_parser_buf, 0 , PROCESS_PARSER_BUFFER_SIZE ); 
    
    while( process_cnt != 0 )
    {
        rsp_size = nanogps2_generic_read( &nanogps2, &uart_rx_buffer, PROCESS_RX_BUFFER_SIZE );

        if ( rsp_size > 0 )
        {  
            // Validation of the received data
            for ( check_buf_cnt = 0; check_buf_cnt < rsp_size; check_buf_cnt++ )
            {
                if ( uart_rx_buffer[ check_buf_cnt ] == 0 ) 
                {
                    uart_rx_buffer[ check_buf_cnt ] = 13;
                }
            }
            
            // Storages data in parser buffer
            rsp_cnt += rsp_size;
            if ( rsp_cnt < PROCESS_PARSER_BUFFER_SIZE )
            {
                strncat( current_parser_buf, uart_rx_buffer, rsp_size );
            }
            // Clear RX buffer
            memset( uart_rx_buffer, 0, PROCESS_RX_BUFFER_SIZE );
        } 
        else 
        {
            process_cnt--;
            
            // Process delay 
            Delay_100ms( );
        }
    }
}

static void parser_application ( char *rsp )
{
    char element_buf[ 200 ] = { 0 };
    
    log_printf( &logger, "\r\n-----------------------\r\n" ); 
    nanogps2_generic_parser( rsp, NANOGPS2_NEMA_GNGGA, NANOGPS2_GNGGA_LATITUDE, element_buf );
    if ( strlen( element_buf ) > 0 )
    {
        log_printf( &logger, "Latitude:  %.2s degrees, %s minutes \r\n", element_buf, &element_buf[ 2 ] );
        nanogps2_generic_parser( rsp, NANOGPS2_NEMA_GNGGA, NANOGPS2_GNGGA_LONGITUDE, element_buf );
        log_printf( &logger, "Longitude:  %.3s degrees, %s minutes \r\n", element_buf, &element_buf[ 3 ] );
        memset( element_buf, 0, sizeof( element_buf ) );
        nanogps2_generic_parser( rsp, NANOGPS2_NEMA_GNGGA, NANOGPS2_GNGGA_ALTITUDE, element_buf );
        log_printf( &logger, "Altitude: %s m", element_buf );  
    }
    else
    {
        log_printf( &logger, "Waiting for the position fix..." );
    } 
}

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

void application_init ( void )
{
    log_cfg_t log_cfg;
    nanogps2_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.

    nanogps2_cfg_setup( &cfg );
    NANOGPS2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    nanogps2_init( &nanogps2, &cfg );
    
    nanogps2_module_wakeup ( &nanogps2 );
}

void application_task ( void )
{
    nanogps2_process( );
    parser_application( current_parser_buf );
}

void main ( void )
{
    application_init( );

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

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

Additional Support

Resources

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