Beginner
10 min

Transform any space into a mesmerizing spectacle with IN-PC55TBTRGB and TM4C129ENCPDT

Customizable and immersive lighting experience

4x4 RGB 2 Click with Fusion for Tiva v8

Published Nov 10, 2023

Click board™

4x4 RGB 2 Click

Dev. board

Fusion for Tiva v8

Compiler

NECTO Studio

MCU

TM4C129ENCPDT

Step into a world of wonder with our solution's matrix of 16 intelligent RGB LEDs, crafting a spellbinding 4x4 display screen that enchants your surroundings with vibrant hues and captivating visual effects.

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Hardware Overview

How does it work?

4x4 EGB 2 Click is based on 16 IN-PC55TBTRGB, RGB LEDs with an integrated IC from Inolux. The LED contains a signal decoding module, a data buffer, a built-in current circuit, and an RC oscillator in the same 5050 packages, forming a color-mixing uniformity and consistency. The LEDs can maintain a static image, thus making the perfect choice for developing an LED screen. Some other features that these LEDs have are built-in support for uninterrupted oscillation PWM, double data transmission, self-detection function-specific signal, three constant current drives, and more. The 4x4 RGB 2 Click uses a two-wire

synchronous transmission to communicate with the host MCU, routed to the SCK and the SDI pins of the mikroBUS™ socket. The maximum input serial data frequency is 30MHz. The data transmission goes from the host MCU through every single LED until the last one in a cascade manner, where the only limit is the number of the LEDs on this Click board™. The maximum LED output current is 20mA, while the LEDs' light intensity, depending on the current, varies from 300mcd at the lowest for Blue to 1500mcd at the highest for Green. Although the chain could be bigger, this is not enabled on the 4x4 RGB 2 Click.

The length of the chain can be limited only by the communication speed required to scan through all the LED devices in order to maintain a reasonable refresh speed. This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this 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.

4x4 RGB 2 Click hardware overview image

Features overview

Development board

Fusion for TIVA v8 is a development board specially designed for the needs of rapid development of embedded applications. It supports a wide range of microcontrollers, such as different 32-bit ARM® Cortex®-M based MCUs from Texas Instruments, regardless of their number of pins, and a broad set of unique functions, such as the first-ever embedded debugger/programmer over a WiFi network. 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. Thanks to innovative manufacturing technology, Fusion for TIVA v8 provides a fluid and immersive working experience, allowing access

anywhere and under any circumstances at any time. Each part of the Fusion for TIVA v8 development board contains the components necessary for the most efficient operation of the same board. An advanced integrated CODEGRIP programmer/debugger module offers many valuable programming/debugging options, including support for JTAG, SWD, and SWO Trace (Single Wire Output)), and seamless integration with the Mikroe software environment. Besides, it also includes a clean and regulated power supply module for the development board. It can use a wide range of external power sources, including a battery, an external 12V power supply, and a power source via the USB Type-C (USB-C) connector.

Communication options such as USB-UART, USB HOST/DEVICE, CAN (on the MCU card, if supported), and Ethernet is also included. In addition, it also has the well-established mikroBUS™ standard, a standardized socket for the MCU card (SiBRAIN standard), and two display options for the TFT board line of products and character-based LCD. Fusion for TIVA v8 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.

Fusion for Tiva v8 horizontal image

Microcontroller Overview

MCU Card / MCU

default

Type

8th Generation

Architecture

ARM Cortex-M4

MCU Memory (KB)

1024

Silicon Vendor

Texas Instruments

Pin count

128

RAM (Bytes)

262144

Used MCU Pins

mikroBUS™ mapper

NC
NC
AN
NC
NC
RST
NC
NC
CS
SPI Clock
PQ0
SCK
NC
NC
MISO
SPI Data IN
PQ2
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

4x4 RGB 2 Click Schematic schematic

Step by step

Project assembly

Fusion for PIC v8 front image hardware assembly

Start by selecting your development board and Click board™. Begin with the Fusion for Tiva v8 as your development board.

Fusion for PIC v8 front image hardware assembly
GNSS2 Click front image hardware assembly
SiBRAIN for PIC32MZ1024EFK144 front image hardware assembly
Board mapper by product7 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
Necto image step 7 hardware assembly
Necto image step 8 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

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 4x4 RGB 2 Click driver.

Key functions:

  • c4x4rgb2_set_led_color - This function sets the color of the selected led in the led matrix.

  • c4x4rgb2_set_led_brightness - This function sets the brightness of the selected led in the led matrix.

  • c4x4rgb2_write_led_matrix - This function writes the led matrix data from the click context object.

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 4x4 RGB 2 Click example
 *
 * # Description
 * This example demonstrates the use of 4x4 RGB 2 Click board by setting all 16 LEDs
 * to different colors and changing the LEDs color every 500 milliseconds. 
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * Initializes the driver and performs the Click default configuration which sets
 * the LEDs brightness to level 1 and the color to black (all LEDs off).
 *
 * ## Application Task
 * Sets all 16 LEDs to a different colors and changes their color every 500 milliseconds.
 * All data is displayed on the USB UART where you can track their changes.
 *
 * @author Stefan Filipovic
 *
 */

#include "board.h"
#include "log.h"
#include "c4x4rgb2.h"

static c4x4rgb2_t c4x4rgb2;
static log_t logger;

static c4x4rgb2_color_t color[ C4X4RGB2_NUM_COLORS ] = 
{ 
    { C4X4RGB2_COLOR_BLACK, "BLACK" },
    { C4X4RGB2_COLOR_WHITE, "WHITE" },
    { C4X4RGB2_COLOR_RED, "RED" },
    { C4X4RGB2_COLOR_LIME, "LIME" },
    { C4X4RGB2_COLOR_BLUE, "BLUE" },
    { C4X4RGB2_COLOR_YELLOW, "YELLOW" },
    { C4X4RGB2_COLOR_CYAN, "CYAN" },
    { C4X4RGB2_COLOR_MAGENTA, "MAGENTA" },
    { C4X4RGB2_COLOR_SILVER, "SILVER" },
    { C4X4RGB2_COLOR_GRAY, "GRAY" },
    { C4X4RGB2_COLOR_MAROON, "MAROON" },
    { C4X4RGB2_COLOR_OLIVE, "OLIVE" },
    { C4X4RGB2_COLOR_GREEN, "GREEN" },
    { C4X4RGB2_COLOR_PURPLE, "PURPLE" },
    { C4X4RGB2_COLOR_TEAL, "TEAL" },
    { C4X4RGB2_COLOR_NAVY, "NAVY" }
};

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    c4x4rgb2_cfg_t c4x4rgb2_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.
    c4x4rgb2_cfg_setup( &c4x4rgb2_cfg );
    C4X4RGB2_MAP_MIKROBUS( c4x4rgb2_cfg, MIKROBUS_1 );
    if ( SPI_MASTER_ERROR == c4x4rgb2_init( &c4x4rgb2, &c4x4rgb2_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( C4X4RGB2_ERROR == c4x4rgb2_default_cfg ( &c4x4rgb2 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
}

void application_task ( void )
{
    static uint8_t color_num = 0;
    for ( uint8_t led_cnt = C4X4RGB2_LED_0; led_cnt <= C4X4RGB2_LED_15; led_cnt++ )
    {
        c4x4rgb2_set_led_color ( &c4x4rgb2, led_cnt, 
                                 color[ ( led_cnt + color_num ) % C4X4RGB2_NUM_COLORS ].rgb );
        log_printf( &logger, " LED %u Color: %s - %.6LX\r\n", ( uint16_t ) led_cnt, 
                    color[ ( led_cnt + color_num ) % C4X4RGB2_NUM_COLORS ].name, 
                    color[ ( led_cnt + color_num ) % C4X4RGB2_NUM_COLORS ].rgb );
    }
    if ( C4X4RGB2_OK == c4x4rgb2_write_led_matrix ( &c4x4rgb2 ) )
    {
        log_printf( &logger, " Write LED Matrix\r\n\n" );
        Delay_ms ( 500 );
    }
    if ( ++color_num >= C4X4RGB2_NUM_COLORS )
    {
        color_num = 0;
    }
}

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

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