rotaryswitch 2.1.0.0
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Rotary Switch Click

‍Rotary Switch Click is a compact add-on board for applications requiring precise rotary input. This board is based on the RDS6-16S-1065-1-SMT, a 16-position notched cap surface-mount rotary DIP switch from Same Sky. This switch features continuous 360-degree actuator rotation, a 2.54mm pin pitch, and robust construction with a contact resistance of 80mΩ and a maximum operating torque of 700gf*cm, ensuring reliable operation for up to 10,000 steps. The board supports the innovative Click Snap feature, allowing the rotary switch to operate autonomously when detached, providing flexibility in various implementations.

Click Product page


Click library

  • Author : Stefan Filipovic
  • Date : Jul 2024.
  • Type : I2C type

Software Support

We provide a library for the Rotary Switch 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 Rotary Switch Click driver.

Standard key functions :

Example key functions :

  • rotaryswitch_get_position This function reads the rotary switch position.
    err_t rotaryswitch_get_position ( rotaryswitch_t *ctx, uint8_t *position );
    err_t rotaryswitch_get_position(rotaryswitch_t *ctx, uint8_t *position)
    Rotary Switch get position function.
  • rotaryswitch_write_reg This function writes a desired data to the selected register by using I2C serial interface.
    err_t rotaryswitch_write_reg ( rotaryswitch_t *ctx, uint8_t reg, uint8_t data_in );
    err_t rotaryswitch_write_reg(rotaryswitch_t *ctx, uint8_t reg, uint8_t data_in)
    Rotary Switch write reg function.
  • rotaryswitch_read_reg This function reads data from the selected register by using I2C serial interface.
    err_t rotaryswitch_read_reg ( rotaryswitch_t *ctx, uint8_t reg, uint8_t *data_out );
    err_t rotaryswitch_read_reg(rotaryswitch_t *ctx, uint8_t reg, uint8_t *data_out)
    Rotary Switch read reg function.

Example Description

‍This example demonstrates the use of Rotary Switch Click board by reading and displaying the switch position on the USB UART.

The demo application is composed of two sections :

Application Init

‍Initializes the driver and performs the Click default configuration.

void application_init ( void )
{
log_cfg_t log_cfg;
rotaryswitch_cfg_t rotaryswitch_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
rotaryswitch_cfg_setup( &rotaryswitch_cfg );
ROTARYSWITCH_MAP_MIKROBUS( rotaryswitch_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == rotaryswitch_init( &rotaryswitch, &rotaryswitch_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( ROTARYSWITCH_ERROR == rotaryswitch_default_cfg ( &rotaryswitch ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}
#define ROTARYSWITCH_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition rotaryswitch.h:133
void application_init(void)
Definition main.c:28
@ ROTARYSWITCH_ERROR
Definition rotaryswitch.h:175

Application Task

‍Reads the switch position every 20ms and displays it on the USB UART on position change.

void application_task ( void )
{
static uint8_t old_position = 0xFF;
uint8_t position = 0;
if ( ( ROTARYSWITCH_OK == rotaryswitch_get_position ( &rotaryswitch, &position ) ) &&
( position != old_position ) )
{
Delay_ms ( 20 );
// Double-check for debouncing
if ( ( ROTARYSWITCH_OK == rotaryswitch_get_position ( &rotaryswitch, &position ) ) &&
( position != old_position ) )
{
old_position = position;
log_printf ( &logger, " Switch position: %.1X\r\n", ( uint16_t ) position );
}
}
Delay_ms ( 20 );
}
void application_task(void)
Definition main.c:64
@ ROTARYSWITCH_OK
Definition rotaryswitch.h:174

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.RotarySwitch

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.