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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.12
mikroSDK Library: 2.0.0.0
Category: Port expander
Downloaded: 177 times
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License: MIT license
EXPAND 7 Click is a compact add-on board that contains a multi-port I/O expander with bi-directional input/outputs or PWM outputs.
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DOWNLOAD LINK | RELATED COMPILER | CONTAINS |
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4374_expand_7_click.zip [654.21KB] | mikroC AI for ARM GCC for ARM Clang for ARM mikroC AI for PIC mikroC AI for PIC32 XC32 GCC for RISC-V Clang for RISC-V mikroC AI for AVR mikroC AI for dsPIC XC16 |
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EXPAND 7 Click is a compact add-on board that contains a multi-port I/O expander with bi-directional input/outputs or PWM outputs.
We provide a library for the Expand7 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.
This library contains API for Expand7 Click driver.
expand7_cfg_setup
Config Object Initialization function.
void expand7_cfg_setup ( expand7_cfg_t *cfg );
expand7_init
Initialization function.
err_t expand7_init ( expand7_t *ctx, expand7_cfg_t *cfg );
expand7_reset
Reset function
void expand7_reset ( expand7_t *ctx );
expand7_write_all
Set all OUTPUT pins' logic levels function
void expand7_write_all ( expand7_t *ctx, uint8_t value );
expand7_write_pin
Set a single OUTPUT pin's logic level function
void expand7_write_pin ( expand7_t *ctx, uint8_t pin, uint8_t pin_val );
This example demonstrates the use of the EXPAND 7 Click.
The demo application is composed of two sections :
Initalizes I2C driver and makes an initial log.
void application_init ( void )
{
log_cfg_t log_cfg;
expand7_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.
expand7_cfg_setup( &cfg );
EXPAND7_MAP_MIKROBUS( cfg, MIKROBUS_1 );
expand7_init( &expand7, &cfg );
Delay_ms ( 100 );
log_printf( &logger, "------------------- \r\n" );
log_printf( &logger, " EXPAND 7 Click \r\n" );
log_printf( &logger, "------------------- \r\n" );
}
This example shows the capabilities of the EXPAND 7 Click by toggling each of the 40 available pins.
void application_task ( void )
{
expand7_write_all ( &expand7, 0xFF );
log_printf( &logger, "All pins set to HIGH logic level!\r\n" );
log_printf( &logger, "---------------------------------\r\n" );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
for ( uint8_t pin_num = 0; pin_num < 40; pin_num++ )
{
expand7_write_pin( &expand7, pin_num, EXPAND7_LOW );
log_printf( &logger, "Pin %u is set to LOW logic level!\r\n", ( uint16_t ) pin_num );
Delay_ms ( 300 );
}
log_printf( &logger, "---------------------------------\r\n" );
Delay_ms ( 1000 );
}
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:
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.