Simplify the way you present information with SC10-21SRWA and TM4C123GH6PZ
Count in style!
Published Sep 07, 2023
Click board™
BIG 7-SEG R Click
Dev. board
Fusion for Tiva v8
Compiler
NECTO Studio
MCU
TM4C123GH6PZ
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
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.
Microcontroller Overview
MCU Card / MCU
Type
8th Generation
Architecture
ARM Cortex-M4
MCU Memory (KB)
256
Silicon Vendor
Texas Instruments
Pin count
100
RAM (Bytes)
32768
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Click board™ Schematic
Step by step
Project assembly
Start by selecting your development board and Click board™. Begin with the Fusion for Tiva v8 as your development board.
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 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
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
