Simplify the way you present information with SC10-21SRWA and PIC18F57Q43

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BIG 7-SEG R Click with Curiosity Nano with PIC18F57Q43

Published Feb 13, 2024

Click board™

BIG 7-SEG R Click

Dev Board

Curiosity Nano with PIC18F57Q43

Compiler

NECTO Studio

MCU

PIC18F57Q43

Our seven-segment LED display is designed to illuminate information with clarity and precision, making it the ideal choice for all your numeric readout needs

Hardware Overview

How does it work?

BIG 7-Seg R Click is based on the SC10-21SRWA, a single-digit numeric display from Kingbright. This super bright red source color device is made with a Gallium Aluminium Arsenide red light-emitting diode. It features low current operation, high light output, excellent character appearance, and is mechanically rugged. The display works on 5V and has a common cathode as its internal design. It consists of seven red LED segments that form an 8 number and the eighth segment as a decimal point, or DP. The communication between the host MCU and the Big 7-Seg R Click is established via a 4-Wire SPI serial interface and the 8-bit

serial-IN, parallel-OUT 74HC595, a shifter register with 3-state output registers from Texas Instruments. The shift register provides a separate clock for both the shift and the storage register. In addition, you can set all shift register values to zero by applying logic LOW state on pin MR, and this function is independent of all clocks. One of the main features of the Big 7-Seg R Click is light intensity management. The light intensity can be set over the PWM pin. The SC10-21SRWA display is a 5V-only device. To work with 3.3V logic MCUs, this Click board™ features five SN74LVC1T45s, single-bit dual-supply bus transceivers with

configurable voltage translation, and 3-state outputs from Texas Instruments. These noninverting transceivers use two separate configurable power-supply rails and are designed for asynchronous communication between the two data buses. This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the DATA 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.

Features overview

Development board

PIC18F57Q43 Curiosity Nano evaluation kit is a cutting-edge hardware platform designed to evaluate microcontrollers within the PIC18-Q43 family. Central to its design is the inclusion of the powerful PIC18F57Q43 microcontroller (MCU), offering advanced functionalities and robust performance. Key features of this evaluation kit include a yellow user LED and a responsive

mechanical user switch, providing seamless interaction and testing. The provision for a 32.768kHz crystal footprint ensures precision timing capabilities. With an onboard debugger boasting a green power and status LED, programming and debugging become intuitive and efficient. Further enhancing its utility is the Virtual serial port (CDC) and a debug GPIO channel (DGI

GPIO), offering extensive connectivity options. Powered via USB, this kit boasts an adjustable target voltage feature facilitated by the MIC5353 LDO regulator, ensuring stable operation with an output voltage ranging from 1.8V to 5.1V, with a maximum output current of 500mA, subject to ambient temperature and voltage constraints.

PIC18F57Q43 Curiosity Nano double side image

Microcontroller Overview

MCU Card / MCU

Architecture

PIC

MCU Memory (KB)

128

Silicon Vendor

Microchip

Pin count

RAM (Bytes)

8196

You complete me!

Accessories

Curiosity Nano Base for Click boards is a versatile hardware extension platform created to streamline the integration between Curiosity Nano kits and extension boards, tailored explicitly for the mikroBUS™-standardized Click boards and Xplained Pro extension boards. This innovative base board (shield) offers seamless connectivity and expansion possibilities, simplifying experimentation and development. Key features include USB power compatibility from the Curiosity Nano kit, alongside an alternative external power input option for enhanced flexibility. The onboard Li-Ion/LiPo charger and management circuit ensure smooth operation for battery-powered applications, simplifying usage and management. Moreover, the base incorporates a fixed 3.3V PSU dedicated to target and mikroBUS™ power rails, alongside a fixed 5.0V boost converter catering to 5V power rails of mikroBUS™ sockets, providing stable power delivery for various connected devices.

Used MCU Pins

mikroBUS™ mapper

Master Reset

PA7

RST

Data Latch

PD4

SPI Clock

PC6

SCK

SPI Data OUT

PC5

MISO

SPI Data IN

PC4

MOSI

Power Supply

3.3V

Ground

GND

Light Intensity Control

PB0

PWM

INT

SCL

SDA

Power Supply

Ground

GND

Take a closer look

Click board™ Schematic

Step by step

Project assembly

Curiosity Nano Base for Click boards front image hardware assembly

Start by selecting your development board and Click board™. Begin with the Curiosity Nano with PIC18F57Q43 as your development board.

Charger 27 Click front image hardware assembly

PIC18F47Q10 Curiosity Nano front image hardware assembly

Curiosity Nano with PICXXX Access MB 1 - upright/background hardware assembly

PIC18F57Q43 Curiosity MCU Step hardware assembly

Necto No Display image step 8 hardware assembly

Debug Image Necto Step hardware assembly

Track your results in real time

Application Output

This Click board can be interfaced and monitored in two ways:

Application Output - Use the "Application Output" window in Debug mode for real-time data monitoring. Set it up properly by following this tutorial.

UART Terminal - Monitor data via the UART Terminal using a USB to UART converter. For detailed instructions, check out this tutorial.

Software Support

Library Description

This library contains API for BIG 7-SEG R Click driver.

Key functions:

big7seg_display_off - Turn OFF BIG 7-SEG display
big7seg_write_data_number - Function write number
big7seg_write_data_character - Function write character

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 Big7Seg Click example
 * 
 * # Description
 * This application sets seven-segment leds on the display.
 *
 * The demo application is composed of two sections :
 * 
 * ## Application Init 
 * Driver initializaion and turning on the display
 * by setting PWM pin to logic 1 and prepare to communcation via SPI.
 * 
 * ## Application Task  
 * This example shows functionality of the BIG 7-SEG R click,
 * shows number or character on display.
 * 
 * \author MikroE Team
 *
 */
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "log.h"
#include "big7seg.h"

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

static big7seg_t big7seg;
static log_t logger;

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

void application_init ( void )
{
    log_cfg_t log_cfg;
    big7seg_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.

    big7seg_cfg_setup( &cfg );
    BIG7SEG_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    big7seg_init( &big7seg, &cfg );

    big7seg_set7seg( &big7seg );
    Delay_100ms( );
}

void application_task ( )
{
    uint8_t counter;

    big7seg_reset7seg( &big7seg );
    big7seg_display_on( &big7seg );
    Delay_1sec( );

    big7seg_write_data( &big7seg, 0x40 );
    Delay_1sec( );
    big7seg_write_data_character( &big7seg, 'B' );
    Delay_1sec( );
    big7seg_write_data_character( &big7seg, 'I' );
    Delay_1sec( );
    big7seg_write_data_character( &big7seg, 'G' );
    Delay_1sec( );
    big7seg_write_data( &big7seg, 0x08 );
    Delay_1sec( );
    big7seg_write_data_number( &big7seg, 7 );
    Delay_1sec( );
    big7seg_write_data( &big7seg, 0x40 );
    Delay_1sec( );
    big7seg_write_data_character( &big7seg, 'S' );
    Delay_1sec( );
    big7seg_write_data_character( &big7seg, 'E' );
    Delay_1sec( );
    big7seg_write_data_character( &big7seg, 'G' );
    Delay_1sec( );
    
    big7seg_write_data( &big7seg, 0x00 );
    Delay_1sec( );
    for ( counter = 65; counter < 91; counter ++ )
    {
        big7seg_write_data_character(  &big7seg, counter );
        Delay_1sec( );
    }

    big7seg_display_off( &big7seg );
    Delay_1sec( );
}

void main ( void )
{
    application_init( );

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

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