DMX click
DMX Click is a device used to establish communication between the MCU and equipment that uses the DMX512-A communication protocol.
click Product page
Click library
- Author : MikroE Team
- Date : Jun 2020.
- Type : UART type
Software Support
We provide a library for the Dmx 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 form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.
Library Description
This library contains API for Dmx Click driver.
Standard key functions :
dmx_cfg_setup
Config Object Initialization function.
dmx_init
Initialization function.
Example key functions :
dmx_generic_write
Generic write function.
dmx_generic_read
Generic read function.
dmx_send_cmd
Send command function.
Examples Description
This example demonstrates the use of the DMX click board by showcasing the control for a 6-channel DMX RGB LED reflector connected to it.
The demo application is composed of two sections :
Application Init
Initializes the driver and performs the click default configuration.
{
log_cfg_t log_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
Delay_ms ( 100 );
Delay_ms ( 100 );
dmx_process( );
dmx_clear_app_buf( );
dmx_log_app_buf( );
dmx_log_app_buf( );
dmx_log_app_buf( );
dmx_log_app_buf( );
dmx_log_app_buf( );
dmx_log_app_buf( );
dmx_log_app_buf( );
dmx_clear_app_buf( );
log_info( &logger, " Application Task " );
Delay_ms ( 500 );
}
Application Task
Performs the LEDs dimming control on a 6-channel DMX RGB LED reflector.
{
uint8_t dmx_6_ch_buf[ 6 ] = { 0 };
int16_t cnt = 0;
dmx_6_ch_buf[ 0 ] = 255;
dmx_6_ch_buf[ 1 ] = 0;
dmx_6_ch_buf[ 2 ] = 0;
dmx_6_ch_buf[ 3 ] = 0;
dmx_6_ch_buf[ 4 ] = 0;
dmx_6_ch_buf[ 5 ] = 0;
log_printf( &logger, "\r\nDimming RED LEDs\r\n" );
for ( cnt = 0; cnt <= 255; cnt++ )
{
dmx_6_ch_buf[ 1 ] = cnt;
Delay_ms ( 1 );
}
for ( cnt = 255; cnt >= 0; cnt-- )
{
dmx_6_ch_buf[ 1 ] = cnt;
Delay_ms ( 1 );
}
log_printf( &logger, "Dimming GREEN LEDs\r\n" );
for ( cnt = 0; cnt <= 255; cnt++ )
{
dmx_6_ch_buf[ 2 ] = cnt;
Delay_ms ( 1 );
}
for ( cnt = 255; cnt >= 0; cnt-- )
{
dmx_6_ch_buf[ 2 ] = cnt;
Delay_ms ( 1 );
}
log_printf( &logger, "Dimming BLUE LEDs\r\n" );
for ( cnt = 0; cnt <= 255; cnt++ )
{
dmx_6_ch_buf[ 3 ] = cnt;
Delay_ms ( 1 );
}
for ( cnt = 255; cnt >= 0; cnt-- )
{
dmx_6_ch_buf[ 3 ] = cnt;
Delay_ms ( 1 );
}
dmx_6_ch_buf[ 1 ] = 255;
dmx_6_ch_buf[ 2 ] = 255;
dmx_6_ch_buf[ 3 ] = 255;
log_printf( &logger, "Dimming all LEDs\r\n" );
for ( cnt = 0; cnt <= 255; cnt++ )
{
dmx_6_ch_buf[ 0 ] = cnt;
Delay_ms ( 1 );
}
for ( cnt = 255; cnt >= 0; cnt-- )
{
dmx_6_ch_buf[ 0 ] = cnt;
Delay_ms ( 1 );
}
}
The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.
Other mikroE Libraries used in the example:
- MikroSDK.Board
- MikroSDK.Log
- Click.Dmx
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. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.