Beginner
10 min

Achieve seamless integration and unleash limitless creativity with our Shuttle board and ATmega328P

Expand. Enhance. Excel.

Shuttle Click with Arduino UNO Rev3

Published Feb 14, 2024

Click board™

Shuttle Click

Dev. board

Arduino UNO Rev3

Compiler

NECTO Studio

MCU

ATmega328P

Unlock infinite possibilities by seamlessly expanding your development platform's capabilities

A

A

Hardware Overview

How does it work?

Shuttle Click consists of a high-quality PCB that can be connected to the mikroBUS™ as any other click board. The central part of the Shuttle click is populated with the four ICD BOX headers. Each of these four headers is connected to the same type of header on the add-on board, also known as mikroBUS Shuttle, by a flat ribbon cable. Thanks to the ICD BOX headers, the connection remains firm and stable. Besides the ICD BOX headers, these mikroBUS Shuttle add-on boards also have one mikroBUS™ equipped so that the click board can be securely fitted to it. This stacking topology allows for easy manipulation and reconfiguration of the stacked click boards™, retaining a perfect connection quality at all times. When there's a need to expand the development system with even more mikroBUS™ slots, one of the free

mikroBUS shuttles can be populated with yet another Shuttle Click, allowing even more connections. This makes the stacking capacity almost unlimited. However, attention should be paid not to make mikroBUS™ lines too long. In situations like this, the frequency of the communication might need to be stepped down a bit to compensate for the longer mikroBUS™ signal lines. Lines of the mikroBUS™ to which Shuttle click is attached are shared through all four ICD BOX headers - each of the four ICD BOX 2x8 pin headers mirrors pins of the connected mikroBUS™. Therefore, each mikroBUS Shuttle add-on board shares the same mikroBUS™ pins as the other mikroBUS Shuttles connected to the same Shuttle click. For this reason, extra care should be taken when working with click boards™

that share the same pins on the mikroBUS™, either for communication (SPI, UART, I2C) or for some other purpose (RST, INT, or other pins used as GPIO). For example, I2C and 1-Wire protocols are designed with stacking in mind, so the collision avoidance mechanisms are already in place for these protocols. It is enough to change the slave address of the click board™, and data collision won't be a problem anymore, even while sharing the same pins for communication. Also, since all the stacked click boards™ share the same power rails, care should be taken when combining click boards™ with significant power consumption. The power consumption from all the click boards™ combined should not exceed the maximum power a development system can deliver.

Shuttle Click hardware overview 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

Analog Output
PC0
AN
Reset
PD2
RST
SPI Chip Select
PB2
CS
SPI Clock
PB5
SCK
SPI Data OUT
PB4
MISO
SPI Data IN
PB3
MOSI
Power Supply
3.3V
3.3V
Ground
GND
GND
PWM Input
PD6
PWM
Interrupt
PC3
INT
UART TX
PD0
TX
UART RX
PD1
RX
I2C Clock
PC5
SCL
I2C Data
PC4
SDA
Power Supply
5V
5V
Ground
GND
GND
1

Take a closer look

Click board™ Schematic

Shuttle 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
Charger 27 Click front image hardware assembly
Prog-cut hardware assembly
Charger 27 Click complete accessories setup image hardware assembly
Board mapper by product8 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

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 Shuttle Click driver.

Key functions:

  • shuttle_set_pin_high - This function sets the output voltage on the specified pin to high.

  • shuttle_set_pin_low - This function sets the output voltage on the specified pin to low.

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 Shuttle Click example
 * 
 * # Description
 * This example showcases how to initialize, configure and use the Terminal Click. It is a simple
 * GPIO Click which uses high-quality PCB design, four ICD BOX headers and flat ribbon cables to
 * enable stable communication and easy stacking of other Click modules.
 *
 * The demo application is composed of two sections :
 * 
 * ## Application Init 
 * This function initializes and configures the Click and logger modules.
 * 
 * ## Application Task  
 * This function sets the output on all the pins (one by one) on the left side to high, going
 * from top to bottom and then does the same with the ones on the right side, after which it 
 * sets all pins to high and after one second sets them back to low.
 * 
 * \author MikroE Team
 *
 */
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "log.h"
#include "shuttle.h"

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

static shuttle_t shuttle;
static log_t logger;

static digital_out_t *pin_addr[ 12 ] =
{
    &shuttle.mosi,    // 0 MOSI
    &shuttle.miso,    // 1 MISO
    &shuttle.sck,     // 2 SCK
    &shuttle.cs,      // 3 CS
    &shuttle.rst,     // 4 RST
    &shuttle.an,      // 5 AN
    &shuttle.pwm,     // 6 PWM
    &shuttle.int_pin, // 7 INT
    &shuttle.tx_pin,  // 8 TX
    &shuttle.rx_pin,  // 9 RX
    &shuttle.scl,     // 10 SCL
    &shuttle.sda      // 11 SDA
};

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

static void blink ( digital_out_t *pin ) 
{
    shuttle_set_pin_high( pin );
    Delay_100ms( );
    shuttle_set_pin_low( pin );
}

static void all_on ( )
{
   int i;

   for( i = 0; i < 12; i++ )
   {
        shuttle_set_pin_high( pin_addr[ i ] );
   }
}

static void all_off ( )
{
   int i;

   for( i = 0; i < 12; i++ )
   {
        shuttle_set_pin_low( pin_addr[ i ] );
   }
}

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

void application_init ( )
{
    log_cfg_t log_cfg;
    shuttle_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.

    shuttle_cfg_setup( &cfg );
    SHUTTLE_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    shuttle_init( &shuttle, &cfg );
}

void application_task ( )
{
    int i;

    for( i = 0; i < 12; i++ )
    {
        blink( pin_addr[ i ] );
    }

    all_on( );
    Delay_1sec( );
    all_off( );
}

int main ( void ) 
{
    /* Do not remove this line or clock might not be set correctly. */
    #ifdef PREINIT_SUPPORTED
    preinit();
    #endif
    
    application_init( );
    
    for ( ; ; ) 
    {
        application_task( );
    }

    return 0;
}

// ------------------------------------------------------------------------ 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.