Simplify the way you present information with SC10-21SRWA and PIC18F46K22
Count in style!
Published 11月 01, 2023
Click board™
BIG 7-SEG R Click
Dev Board
Curiosity HPC
Compiler
NECTO Studio
MCU
PIC18F46K22
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
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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
Curiosity HPC, standing for Curiosity High Pin Count (HPC) development board, supports 28- and 40-pin 8-bit PIC MCUs specially designed by Microchip for the needs of rapid development of embedded applications. This board has two unique PDIP sockets, surrounded by dual-row expansion headers, allowing connectivity to all pins on the populated PIC MCUs. It also contains a powerful onboard PICkit™ (PKOB), eliminating the need for an external programming/debugging tool, two mikroBUS™ sockets for Click board™ connectivity, a USB connector, a set of indicator LEDs, push button switches and a variable potentiometer. All
these features allow you to combine the strength of Microchip and Mikroe and create custom electronic solutions more efficiently than ever. Each part of the Curiosity HPC development board contains the components necessary for the most efficient operation of the same board. An integrated onboard PICkit™ (PKOB) allows low-voltage programming and in-circuit debugging for all supported devices. When used with the MPLAB® X Integrated Development Environment (IDE, version 3.0 or higher) or MPLAB® Xpress IDE, in-circuit debugging allows users to run, modify, and troubleshoot their custom software and hardware
quickly without the need for additional debugging tools. Besides, it includes a clean and regulated power supply block for the development board via the USB Micro-B connector, alongside all communication methods that mikroBUS™ itself supports. Curiosity HPC development board allows you to create a new application in just a few steps. Natively supported by Microchip software tools, it covers many aspects of prototyping thanks to many number of different Click boards™ (over a thousand boards), the number of which is growing daily.
Microcontroller Overview
MCU Card / MCU
Architecture
PIC
MCU Memory (KB)
64
Silicon Vendor
Microchip
Pin count
40
RAM (Bytes)
3896
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Schematic
Step by step
Project assembly
Start by selecting your development board and Click board™. Begin with the Curiosity HPC as your development board.
Track your results in real time
Application Output
After loading the code example, pressing the "DEBUG" button builds and programs it on the selected setup.
After programming is completed, a header with buttons for various actions available in the IDE appears. By clicking the green "PLAY "button, we start reading the results achieved with Click board™.
Upon completion of programming, the Application Output tab is automatically opened, where the achieved result can be read. In case of an inability to perform the Debug function, check if a proper connection between the MCU used by the setup and the CODEGRIP programmer has been established. A detailed explanation of the CODEGRIP-board connection can be found in the CODEGRIP User Manual. Please find it in the RESOURCES section.
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 displaybig7seg_write_data_number- Function write numberbig7seg_write_data_character- Function write character
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 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
