Create a solution for clear and impactful messaging using JSS-5611BUB-21 and TM4C129ENCPDT
Red means readable: Large 7-segment brilliance
Published Sep 09, 2023
Click board™
UT-L 7-SEG R Click
Dev. board
Fusion for Tiva v8
Compiler
NECTO Studio
MCU
TM4C129ENCPDT
Our large red 7-segment display is engineered to provide unmatched visibility, combining size and clarity to ensure your messages and data are conveyed with maximum impact and readability
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Hardware Overview
How does it work?
UT-L 7-SEG R Click is based on two red JSS-5611BUB-21s, ultra-thin single-digit numeric displays from Ningbo Junsheng Electronics. This high-intensity and reliable blue source color device is made with Indium-Gallium-Nitride light-emitting diode conducting material. It features low current operation, high light output, excellent character appearance, and is mechanically rugged. The display can work on 5V and 3.3V and has a common anode 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 UT-L 7-SEG R Click is established via an industry-standard shift-register-plus-latch-type serial interface and the MAX6969, 16-port constant-current LED driver from Analog Devices. This driver has a 4-wire serial interface using four inputs and a data output. The output-enable input (OE) gates to all 16 outputs ON and OFF and is fast enough to be used as a PWM input for LED intensity control. The constant-current
outputs are programmed together to around 15mA using a single external resistor. This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the PWR 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)
1024
Silicon Vendor
Texas Instruments
Pin count
128
RAM (Bytes)
262144
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 UT-L 7-SEG R Click driver.
Key functions:
utl7segr_generic_write- This function writes a desired number of data bytes starting from the selected register by using SPI serial interfaceutl7segr_display_state- This function turns display on and off.
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 UT-L7-SEGR Click example
*
* # Description
* The demo application shows basic usage of the UT 7 SEG display.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Configuring clicks and log objects.
* Settings the click in the default configuration.
*
* ## Application Task
* Draws numbers from 0 to 99 on the screen.
*
* @author Stefan Ilic
*
*/
#include "board.h"
#include "log.h"
#include "utl7segr.h"
static utl7segr_t utl7segr;
static log_t logger;
void application_init ( void ) {
log_cfg_t log_cfg; /**< Logger config object. */
utl7segr_cfg_t utl7segr_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.
utl7segr_cfg_setup( &utl7segr_cfg );
UTL7SEGR_MAP_MIKROBUS( utl7segr_cfg, MIKROBUS_1 );
err_t init_flag = utl7segr_init( &utl7segr, &utl7segr_cfg );
if ( init_flag == SPI_MASTER_ERROR ) {
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
utl7segr_default_cfg ( &utl7segr );
log_info( &logger, " Application Task " );
}
void application_task ( void ) {
log_info( &logger, "---- Number counter ----" );
for ( uint8_t cnt = 0; cnt < 100; cnt++ ) {
utl7segr_display_number( &utl7segr, cnt, UTL7SEGR_DOT_LEFT );
Delay_ms( 500 );
}
}
void main ( void ) {
application_init( );
for ( ; ; ) {
application_task( );
}
}
// ------------------------------------------------------------------------ END
