WHADDA WPM400 4-Channel Relay Module User Manual

: June 3, 2024
: WHADDA

Table of Contents

Introduction
Safety Instructions
General Guidelines
What is Arduino®
Product Overview
Specifications
Features
Pin Layout
Connection
Connection
define RELAY1 13
define RELAY2 12
define RELAY3 11
define RELAY4 10
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

USER MANUAL

4-channel relay module
WPM400

Introduction

To all residents of the European Union
Important environmental information about this product
This symbol on the device or the package indicates that disposal of the device after its lifecycle could harm the environment. Do not dispose of the unit (or batteries) as unsorted municipal waste; it should be taken to a specialized company for recycling. This device should be returned to your distributor or to a local recycling service. Respect the local environmental rules.
If in doubt, contact your local waste disposal authorities.

Thank you for choosing Whadda! Please read the manual thoroughly before bringing this device into service. If the device was damaged in transit, do not install or use it and contact your dealer.

Safety Instructions

Read and understand this manual and all safety signs before using this appliance.
For indoor use only.

This device can be used by children aged from 8 years and above, and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning the use of the device in a safe way and understand the hazards involved. Children shall not play with the device. Cleaning and user maintenance shall not be made by children without supervision.

General Guidelines

Refer to the Velleman® Service and Quality Warranty on the last pages of this manual.
All modifications of the device are forbidden for safety reasons. Damage caused by user modifications to the device is not covered by the warranty.
Only use the device for its intended purpose. Using the device in an unauthorized way will void the warranty.
Damage caused by disregard of certain guidelines in this manual is not covered by the warranty and the dealer will not accept responsibility for any ensuing defects or problems.
Nor Velleman Group nv nor its dealers can be held responsible for any damage (extraordinary, incidental or indirect) – of any nature (financial, physical…) arising from
the possession, use or failure of this product.
Keep this manual for future reference.

What is Arduino®

Arduino® is an open-source prototyping platform based on easy-to-use hardware and software. Arduino® boards are able to read inputs – light-on sensor, a finger on a button or a Twitter message – and turn it into an output – activating of a motor, turning on an LED, publishing something online. You can tell your board what to do by sending a set of instructions to the microcontroller on the board. To do so, you use the Arduino programming language (based on Wiring) and the Arduino® software IDE (based on Processing). Additional shields/modules/components are required for reading a twitter message or publishing online. Surf to www.arduino.cc for more information.

Product Overview

This 4-channel relay interface board can control various appliances and other high-current equipment. It can be controlled directly by any micro-controller.

Specifications

control input current (in1 to in4): 5-15 mA
control input voltage: 5-12 VDC
relay output: 250 VAC, 10 A; 30 VDC, 10 A (non-inductive)
dimensions: 75 x 55 x 19 mm
weight: 61 g

Features

standard interface that can be controlled directly by any microcontroller
opto-isolated inputs
indicator LEDs for relay output status

Pin Layout

VCC	5 VDC power
GND	ground
In1	signal pin, connected with Arduino® and control relay 1
In2	signal pin, connected with Arduino® and control relay 2
In3	signal pin, connected with Arduino® and control relay 3
In4	signal pin, connected with Arduino® and control relay 4
COM	common terminal low side optocouplers (normally tied to GND)

Connection

define RELAY1 13

define RELAY2 12

define RELAY3 11

define RELAY4 10

void setup()
{
// Initialize the arduino data pins for OUTPUT
pinMode(RELAY1, OUTPUT);
pinMode(RELAY2, OUTPUT);
pinMode(RELAY3, OUTPUT);
pinMode(RELAY4, OUTPUT);
}
void loop()
{
digitalWrite(RELAY1, HIGH); // Turns ON Relay 1
delay(2000); // Wait 2 seconds
digitalWrite(RELAY1, LOW); // Turns OFF Relay 1
digitalWrite(RELAY2, HIGH); // Turns ON Relay 2
delay(2000); // Wait 2 seconds
digitalWrite(RELAY2, LOW); // Turns OFF Relay 2
digitalWrite(RELAY3, HIGH); // Turns ON Relay 3
delay(2000); // Wait 2 seconds
digitalWrite(RELAY3, LOW); // Turns OFF Relay 3
digitalWrite(RELAY4, HIGH); // Turns ON Relay 4
delay(2000); // Wait 2 seconds
digitalWrite(RELAY4, LOW); // Turns OFF Relay 4
}