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Tilt 4 Click is a compact add-on board designed for reliable tilt detection applications. This board features the RB-231X2, a rolling ball tilt switch from C&K Components, ensuring accurate and safe tilt detection. The RB-231X2 features a compact, shielded design with a detection angle of up to 10° and an operating life of 100,000 cycles. It interfaces with the MCU using only the INT and LED pins, providing real-time interrupt signals and visual tilt indication through a red LED.
- Author : Stefan Ilic
- Date : Nov 2023.
- Type : GPIO type
We provide a library for the Tilt 4 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.
This library contains API for Tilt 4 Click driver.
tilt4_cfg_setup
Config Object Initialization function.
void tilt4_cfg_setup ( tilt4_cfg_t *cfg );
tilt4_init
Initialization function.
err_t tilt4_init ( tilt4_t *ctx, tilt4_cfg_t *cfg );
tilt4_read_int_state
This function reads the state of the interrupt pin of Tilt 4 click board.
uint8_t tilt4_read_int_state ( tilt4_t *ctx );
tilt4_set_led_state
This function sets the LED pin on the selected level level of Tilt 4 click board.
void tilt4_set_led_state ( tilt4_t *ctx, uint8_t pin_state );
This example demonstrates the use of Tilt 4 click board.
The demo application is composed of two sections :
Initializes the driver and USB UART logger.
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
tilt4_cfg_t tilt4_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.
tilt4_cfg_setup( &tilt4_cfg );
TILT4_MAP_MIKROBUS( tilt4_cfg, MIKROBUS_1 );
if ( DIGITAL_OUT_UNSUPPORTED_PIN == tilt4_init( &tilt4, &tilt4_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}
As soon as the tilt switch state changes, it displays a corresponding message on the USB UART.
void application_task ( void )
{
uint8_t state = tilt4_read_int_state ( &tilt4 );
if ( tilt4_switch_state != state )
{
tilt4_switch_state = state;
if ( TILT4_SWITCH_ON == tilt4_switch_state )
{
log_printf( &logger, " Tilt switch ON!\r\n\n" );
tilt4_set_led_state( &tilt4, TILT4_PIN_STATE_HIGH );
}
else
{
log_printf( &logger, " Tilt switch OFF!\r\n\n" );
tilt4_set_led_state( &tilt4, TILT4_PIN_STATE_LOW );
}
Delay_ms ( 500 );
}
}
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.Tilt4
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.