relay5  2.1.0.0
Main Page

Relay 5 click

Relay 5 Click is a compact add-on board with general-purpose relays that any host MCU can control. This board features three J1031C3VDC.15S, a high-current single-pole double-throw (SPDT) signal relays controlled by the PCA9538A, a low-voltage 8-bit I/O port expander from NXP Semiconductors. Highly sensitive, the J1031C3VDC.15S offers a low coil power consumption in a small, lightweight package with PC pin mounting. It comes with a dimension of 12.5x7.5x10 millimeters (LxWxH) and a 1C contact arrangement with a coil voltage of 3VDC, providing a maximum switching voltage of 125VAC/60VDC.

click Product page


Click library

  • Author : Stefan Filipovic
  • Date : Mar 2023.
  • Type : I2C type

Software Support

We provide a library for the Relay 5 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 Relay 5 Click driver.

Standard key functions :

Example key functions :

  • relay5_set_relay1_open This function sets the relay 1 to normally open state by setting the RL1 pin to low logic level.
  • relay5_set_relay1_close This function sets the relay 1 to normally close state by setting the RL1 pin to high logic level.
  • relay5_switch_relay1 This function switches the relay 1 state by toggling the RL1 pin logic level.

Example Description

This example demonstrates the use of Relay 5 click board by toggling the relays state.

The demo application is composed of two sections :

Application Init

Initializes the driver and logger.

void application_init ( void )
{
log_cfg_t log_cfg;
relay5_cfg_t relay5_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
relay5_cfg_setup( &relay5_cfg );
RELAY5_MAP_MIKROBUS( relay5_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == relay5_init( &relay5, &relay5_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( RELAY5_ERROR == relay5_default_cfg ( &relay5 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Switches all relays state every 5 seconds and displays the state on the USB UART.

void application_task ( void )
{
log_printf( &logger, " Relay 1 set to normally open state\r\n" );
log_printf( &logger, " Relay 2 set to normally close state\r\n" );
log_printf( &logger, " Relay 3 set to normally open state\r\n\n" );
Delay_ms ( 5000 );
log_printf( &logger, " Relay 1 set to normally close state\r\n" );
log_printf( &logger, " Relay 2 set to normally open state\r\n" );
log_printf( &logger, " Relay 3 set to normally close state\r\n\n" );
Delay_ms ( 5000 );
}

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.Relay5

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.


relay5_set_relay3_close
err_t relay5_set_relay3_close(relay5_t *ctx)
Relay 5 set relay 3 close function.
relay5_set_relay2_open
err_t relay5_set_relay2_open(relay5_t *ctx)
Relay 5 set relay 2 open function.
relay5_set_relay1_open
err_t relay5_set_relay1_open(relay5_t *ctx)
Relay 5 set relay 1 open function.
application_task
void application_task(void)
Definition: main.c:63
relay5_set_relay1_close
err_t relay5_set_relay1_close(relay5_t *ctx)
Relay 5 set relay 1 close function.
relay5_default_cfg
err_t relay5_default_cfg(relay5_t *ctx)
Relay 5 default configuration function.
relay5_init
err_t relay5_init(relay5_t *ctx, relay5_cfg_t *cfg)
Relay 5 initialization function.
RELAY5_MAP_MIKROBUS
#define RELAY5_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: relay5.h:133
relay5_set_relay2_close
err_t relay5_set_relay2_close(relay5_t *ctx)
Relay 5 set relay 2 close function.
relay5_cfg_t
Relay 5 Click configuration object.
Definition: relay5.h:163
relay5_t
Relay 5 Click context object.
Definition: relay5.h:146
application_init
void application_init(void)
Definition: main.c:27
RELAY5_ERROR
@ RELAY5_ERROR
Definition: relay5.h:181
relay5_cfg_setup
void relay5_cfg_setup(relay5_cfg_t *cfg)
Relay 5 configuration object setup function.
relay5_set_relay3_open
err_t relay5_set_relay3_open(relay5_t *ctx)
Relay 5 set relay 3 open function.
relay5_switch_relay1
err_t relay5_switch_relay1(relay5_t *ctx)
Relay 5 switch relay 1 function.