Relay 2 Click

Relay 2 Click is a dual relay Click board™, equipped with two single-pole solid state relays (SSR), built with the patented OptoMOS® technology.

Click Product page

Click library

• Author : MikroE Team
• Date : Dec 2019.
• Type : GPIO type

Software Support

We provide a library for the Relay2 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 Relay2 Click driver.

Standard key functions :

• Config Object Initialization function.

  void relay2_cfg_setup ( relay2_cfg_t *cfg );

• Initialization function.

  RELAY2_RETVAL relay2_init ( relay2_t ctx, relay2_cfg_t cfg );

Example key functions :

• Config Object Initialization function.

  This function initializes Click configuration structure to init state.

• Initialization function.

  his function initializes all necessary pins and peripherals used for this Click.

• Click Default Configuration function.

  This function executes default configuration for Relay 2 Click.

• relay2_relay2Control

  Controls the Relay 2 pin

• relay2_relay2Control

  Controls the Relay 1 pin

Examples Description

The application is composed of three sections :

The demo application is composed of two sections :

Application Init

Initializes driver.

void application_init ( void )
{
    log_cfg_t log_cfg;
    relay2_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.

    relay2_cfg_setup( &cfg );
    RELAY2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    relay2_init( &relay2, &cfg );
    log_info( &logger, "---- App Init Done ----" );
}

Application Task

Turns relays on and off.

void application_task ( void )
{
    relay2_relay2_control(&relay2, 1 );
    relay2_relay1_control(&relay2, 1 );

    Delay_ms ( 1000 );

    relay2_relay2_control(&relay2, 0 );
    relay2_relay1_control(&relay2, 0 );

    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:

• MikroSDK.Board
• MikroSDK.Log
• Click.Relay2

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.