Beginner
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Establish control of any high-power application with G6D1AASIDC5 and PIC18F86J15

General-purpose relays with a maximum switching voltage of 125VAC/60VDC

RELAY Click with EasyPIC PRO v8

Published Oct 17, 2023

Click board™

RELAY Click

Development board

EasyPIC PRO v8

Compiler

NECTO Studio

MCU

PIC18F86J15

Easily create a remote switch that can turn things ON and OFF, like lights or motors, in your projects

A

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Hardware Overview

How does it work?

RELAY Click is based on two G6D1AASIDC5s, slim miniature relays from OMRON. Despite its size, the G6D-1A-ASI DC5 relay can withstand up to 5A and 220V AC/30V DC. It can endure up to 300,000 operations, with 30V DC and 2A. This relay has a single pole only - when the coil is energized, it will attract the internal switching elements and close the circuit, similarly to a switch. These relays are designed so relatively low currents and voltages

can easily activate their coils. For the G6D-1A-ASI DC5 relay operated at 5V, the coil current is 40mA. This makes them a perfect choice for activating them by an MCU. RELAY Click uses GPIO pins RL1 and RL2 to be controlled by the host MCU. Since RELAY Click uses an NPN RET and resistors, the host MCU is safe from the current spikes driving the relay's coils. In addition, there is an LED for every relay, each of a different color,

representing the relays' status. This Click board™ can be operated only with a 5V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. Also, it comes equipped with a library containing functions and an example code that can be used as a reference for further development.

RELAY Click hardware overview image

Features overview

Development board

EasyPIC PRO v8 is a development board specially designed for the needs of rapid development of embedded applications. It supports many high pin count 8-bit PIC microcontrollers from Microchip, regardless of their number of pins, and a broad set of unique functions, such as the first-ever embedded debugger/programmer over WiFi. The development board is well organized and designed so that the end-user has all the necessary elements, such as switches, buttons, indicators, connectors, and others, in one place. Thanks to innovative manufacturing technology, EasyPIC PRO v8 provides a fluid and immersive working experience, allowing access anywhere and under

any circumstances at any time. Each part of the EasyPIC PRO v8 development board contains the components necessary for the most efficient operation of the same board. In addition to the advanced integrated CODEGRIP programmer/debugger module, which offers many valuable programming/debugging options and seamless integration with the Mikroe software environment, the board also includes a clean and regulated power supply module for the development board. It can use a wide range of external power sources, including a battery, an external 12V power supply, and a power source via the USB Type-C (USB-C) connector.

Communication options such as USB-UART, USB DEVICE, and Ethernet are also included, including the well-established mikroBUS™ standard, a standardized socket for the MCU card (SiBRAIN standard), and two display options (graphical and character-based LCD). EasyPIC PRO v8 is an integral part of the Mikroe ecosystem for rapid development. Natively supported by Mikroe software tools, it covers many aspects of prototyping and development thanks to a considerable number of different Click boards™ (over a thousand boards), the number of which is growing every day.

EasyPIC PRO v8 horizontal image

Microcontroller Overview

MCU Card / MCU

default

Type

8th Generation

Architecture

PIC

MCU Memory (KB)

96

Silicon Vendor

Microchip

Pin count

80

RAM (Bytes)

3936

Used MCU Pins

mikroBUS™ mapper

NC
NC
AN
NC
NC
RST
Relay 2 Control
PJ0
CS
NC
NC
SCK
NC
NC
MISO
NC
NC
MOSI
NC
NC
3.3V
Ground
GND
GND
Relay 1 Control
PE0
PWM
NC
NC
INT
NC
NC
TX
NC
NC
RX
NC
NC
SCL
NC
NC
SDA
Power Supply
5V
5V
Ground
GND
GND
1

Take a closer look

Schematic

RELAY Click Schematic schematic

Step by step

Project assembly

Fusion for PIC v8 front image hardware assembly

Start by selecting your development board and Click board™. Begin with the EasyPIC PRO v8 as your development board.

Fusion for PIC v8 front image hardware assembly
GNSS2 Click front image hardware assembly
SiBRAIN for PIC32MZ1024EFK144 front image hardware assembly
GNSS2 Click complete accessories setup image hardware assembly
v8 SiBRAIN Access MB 1 - upright/background hardware assembly
Necto image step 2 hardware assembly
Necto image step 3 hardware assembly
Necto image step 4 hardware assembly
NECTO Compiler Selection Step Image hardware assembly
NECTO Output Selection Step Image hardware assembly
Necto image step 6 hardware assembly
Necto image step 7 hardware assembly
Necto image step 8 hardware assembly
Necto image step 9 hardware assembly
Necto image step 10 hardware assembly
Necto PreFlash Image hardware assembly

Track your results in real time

Application Output

After pressing the "FLASH" button on the left-side panel, it is necessary to open the UART terminal to display the achieved results. By clicking on the Tools icon in the right-hand panel, multiple different functions are displayed, among which is the UART Terminal. Click on the offered "UART Terminal" icon.

UART Application Output Step 1

Once the UART terminal is opened, the window takes on a new form. At the top of the tab are two buttons, one for adjusting the parameters of the UART terminal and the other for connecting the UART terminal. The tab's lower part is reserved for displaying the achieved results. Before connecting, the terminal has a Disconnected status, indicating that the terminal is not yet active. Before connecting, it is necessary to check the set parameters of the UART terminal. Click on the "OPTIONS" button.

UART Application Output Step 2

In the newly opened UART Terminal Options field, we check if the terminal settings are correct, such as the set port and the Baud rate of UART communication. If the data is not displayed properly, it is possible that the Baud rate value is not set correctly and needs to be adjusted to 115200. If all the parameters are set correctly, click on "CONFIGURE".

UART Application Output Step 3

The next step is to click on the "CONNECT" button, after which the terminal status changes from Disconnected to Connected in green, and the data is displayed in the Received data field.

UART Application Output Step 4

Software Support

Library Description

This library contains API for RELAY Click driver.

Key functions:

  • relay_set_state - Relay set state

Open Source

Code example

This example can be found in NECTO Studio. Feel free to download the code, or you can copy the code below.

/*!
 * \file
 * \brief Relay Click example
 *
 * # Description
 * Demo application is used to shows basic controls Relay click
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * Configuring clicks and log objects.
 * Settings the click in the default configuration.
 *
 * ## Application Task
 * Alternately sets relays to ON-OFF state...
 *
 * \author Katarina Perendic
 *
 */
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "log.h"
#include "relay.h"

// ------------------------------------------------------------------ VARIABLES

static relay_t relay;
static log_t logger;

// ------------------------------------------------------ APPLICATION FUNCTIONS

void application_init ( void )
{
    log_cfg_t log_cfg;
    relay_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.

    relay_cfg_setup( &cfg );
    RELAY_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    relay_init( &relay, &cfg );

    relay_default_cfg ( &relay );
    Delay_ms( 1500 );
}

void application_task ( void )
{
    uint8_t cnt;

    //  Task implementation.

    for ( cnt = 1; cnt <= 2; cnt++)
    {
        log_info( &logger, "*** Relay %d state is ON \r\n", (uint16_t)cnt);
        relay_set_state( &relay, cnt, RELAY_STATE_ON );
        Delay_ms ( 1000 );
        log_info( &logger, "*** Relay %d state is OFF \r\n", (uint16_t)cnt);
        relay_set_state( &relay, cnt, RELAY_STATE_OFF );
        Delay_ms ( 200 );
    }
}

void main ( void )
{
    application_init( );

    for ( ; ; )
    {
        application_task( );
    }
}


// ------------------------------------------------------------------------ END

Additional Support

Resources