lcdmini  2.0.0.0
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LCD mini click

LCD mini click displays 2x16 monochrome characters on an LMB162XFW LCD display. It features the MCP23S17 port expander and the MCP4161 digital potentiometer, both from Microchip.

click Product page


Click library

  • Author : Stefan Ilic
  • Date : Dec 2021.
  • Type : SPI type

Software Support

We provide a library for the LCD mini Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for LCD mini Click driver.

Standard key functions :

Example key functions :

Example Description

This is an example that demonstrates the use of the LCD mini Click board.

The demo application is composed of two sections :

Application Init

Initialization driver enables - SPI, performing hardware reset, default config, setting up the backlight, and entering text to be written.

void application_init ( void )
{
log_cfg_t log_cfg;
lcdmini_cfg_t lcdmini_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
lcdmini_cfg_setup( &lcdmini_cfg );
LCDMINI_MAP_MIKROBUS( lcdmini_cfg, MIKROBUS_1 );
if ( SPI_MASTER_ERROR == lcdmini_init( &lcdmini, &lcdmini_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
lcdmini_hw_reset( &lcdmini );
log_printf( &logger, "---------------------\r\n" );
log_printf( &logger, " SPI LCD Config \r\n" );
log_printf( &logger, " Clear LCD display \r\n" );
log_printf( &logger, " Cursor OFF \r\n" );
if ( LCDMINI_ERROR == lcdmini_default_cfg ( &lcdmini ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_printf( &logger, "---------------------\r\n" );
log_printf( &logger, " Setting Backlight \r\n" );
lcdmini_set_backlight ( &lcdmini, 1 );
Delay_ms( 100 );
log_printf( &logger, "---------------------\r\n" );
log_printf( &logger, " Set Contrast: 200 \r\n" );
lcdmini_set_contrast( &lcdmini, 200 );
Delay_ms( 100 );
log_info( &logger, " Application Task " );
log_printf( &logger, "---------------------\r\n" );
log_printf( &logger, " Display text \r\n" );
log_printf( &logger, "---------------------\r\n" );
lcdmini_display_text ( &lcdmini, 1, 6, "Mikro E" );
lcdmini_display_text ( &lcdmini, 2, 2, "LCD mini Click" );
lcdmini_display_text ( &lcdmini, 3, 2, "LCD mini Click" );
lcdmini_display_text ( &lcdmini, 4, 6, "Mikro E" );
Delay_ms( 500 );
}

Application Task

This example shows the written text, then the text is moved left, with changing between rows of the LCD screen.

void application_task ( void )
{
Delay_ms( 500 );
}

Note

If the screen isn't initialized you may need to restart the device.

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.LCDmini

Additional notes and informations

Depending on the development board you are using, you may need USB UART click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.


lcdmini_set_contrast
void lcdmini_set_contrast(lcdmini_t *ctx, uint8_t contrast_value)
Set contrast function.
lcdmini_default_cfg
err_t lcdmini_default_cfg(lcdmini_t *ctx)
LCD mini default configuration function.
application_task
void application_task(void)
Definition: main.c:91
lcdmini_cfg_setup
void lcdmini_cfg_setup(lcdmini_cfg_t *cfg)
LCD mini configuration object setup function.
lcdmini_send_cmd
void lcdmini_send_cmd(lcdmini_t *ctx, uint8_t command)
LCD mini send command.
lcdmini_hw_reset
void lcdmini_hw_reset(lcdmini_t *ctx)
Hardware reset function.
LCDMINI_MAP_MIKROBUS
#define LCDMINI_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: lcdmini.h:146
lcdmini_init
err_t lcdmini_init(lcdmini_t *ctx, lcdmini_cfg_t *cfg)
LCD mini initialization function.
LCDMINI_SHIFT_LEFT
#define LCDMINI_SHIFT_LEFT
Definition: lcdmini.h:103
application_init
void application_init(void)
Definition: main.c:31
lcdmini_set_backlight
void lcdmini_set_backlight(lcdmini_t *ctx, float backlight_value)
Set backlight function.
lcdmini_t
LCD mini Click context object.
Definition: lcdmini.h:164
lcdmini_cfg_t
LCD mini Click configuration object.
Definition: lcdmini.h:187
LCDMINI_ERROR
@ LCDMINI_ERROR
Definition: lcdmini.h:216
lcdmini_display_text
void lcdmini_display_text(lcdmini_t *ctx, uint8_t row, uint8_t column, char *data_in)
LCD mini display text.