Usb 4 channel 10a relay output module board for home. How to use 4 channel relay to control ac load with arduino. The 4 channel relay breakout is an easy way to use your arduino, raspberry pi, or other microcontroller to switch high voltages and high current loads. The more usb ports you have the more relay boards you may connect. The shield is a solution for driving high power loads that cannot be controlled by. The arduino 4 relays shield is a solution for driving high power loads that cannot be controlled by arduino s digital ios, due to the current and voltage limits of the controller. The arduino 4 relays shield allows your arduino driving high power loads. The relay module allows a wide range of microcontrollers such as arduino, avr, pic, arm with digital outputs to control larger loads and devices like ac or dc motors, electromagnets, solenoids, and incandescent light bulbs. I am connecting 4 digital pins to the relay module, and powering. All you need is apply power via the vcc and gnd and give it a pulse at in to turn on the relay. How to control a 5v relay with bluetooth using an arduino. It could be directly controlled by arduino through digital ios.
More information and instructions can be found on my blog. Esp8266 4channel relay module home automation project. Huayao 2pcs 4 channel dc 5v relay module with optocoupler for arduino uno r3 mega 2560 1280 dsp arm pic avr stm32 raspberry pi 4. The shield features four relays, each relay provides 2 pole changeover contacts no and nc. Osoyoo uno board fully compatible with arduino uno rev. Relays are typically used to switch devices which uses a higher voltage than what most microcontrollers such as an arduino or raspberry pi can handle. This is my 4th tutorial on how to drive a relay not a relay module with an arduino. Oct 07, 2015 the relay shield is capable of controlling 4 relays. Each relay has a normally open no and a normally closed nc. There are hundreds of tutorial available on how to use a relay module but i could not find a good one that shows how to use a relay and not a relay module.
Setting d3 therefore turns on the relay and turns on the lamp. Sep 07, 2014 more information and instructions can be found on my blog. Sainsmart 4channel 5v usb relay module for automation. These handy relay modules provide the easiest way to use your duinotech to switch real world devices. Almost any sensor can be used to trigger the relay to turn on or off. When you are selecting a relay to connect to your arduino you need to consider a the power voltage and current. Numato labs 4 channel programmable relay module is a featurerich product that can be programmed with arduino ide. The usb to serial chip ft232rl helps to upload sketches quickly to the board. The bluetooth module receives data from the paired android smartwatch and triggers the relay based on the received data. This is code for 4 to 16 channel 5v relay module for arduino in this video you will learn the details description of 4 channel relay module. Each relay has a normally open no and a normally closed nc contact. Iot project of controlling home light using bluetooth.
Guide for relay module with arduino random nerd tutorials. I am connecting 4 digital pins to the relay module, and powering it with a constant digital signal from pin 2. The further detail about 2 relay module interfacing with arduino will be given later in this tutorial. Find this and other arduino tutorials on find this and other arduino tutorials on. The lamp is connected to the relay using a normally open configuration. Getting started with the 4 channel relay breakout bc.
The relay shield is capable of controlling 4 relays. There are other models with one, four and eight channels. Arduino bluetooth 4 channel relay app arduino project hub. Mar 28, 2020 after reading this post the reader will be able to learn about the basics of the relay module, electronic circuit of the relay module, simulation model of the relay module and the simulation of relay module with arduino in proteus. It can be controlled directly by microcontroller arduino, 8051, avr, pic, dsp, arm, arm, msp430, ttl logic. Aug 19, 2017 the further detail about 2 relay module interfacing with arduino will be given later in this tutorial. Im sorry if im posting this thread in the wrong place this is my first post and you can tell i am a noob obviously. Relay is a switch which makes or loses the connection between two different circuits. The reader will also learn about how to interface the arduino with relay module. Sure, a lolin or wemos board will do, but as we only need to control 4 channels, the simple esp826601 suffices.
The arduino can be programmed to turn on the 4 channel relay module when a certain event occurs, for example when the temperature of a thermistor gets higher than 30 c. In this video well learn how to use a sainsmart 4channel 5v relay module with an arduino. Introduction this is a 5v 4channels relay module, it can be controlled directly by a wide range of microcontrollers such as arduino, avr, pic, arm and msp 430. Or when the resistance of a photoresistor drops below 400 ohms. Very compact design that can fit on top of arduino uno.
This is the reason we can control a relay using 5vs from an arduino and the other end of it could be running an 230v appliance, the 230v end is completely isolated from the 5v arduino circuitry. I tried to look up some information about that on the net, but all the answers suggested solution didnt work for me. Jan 15, 2019 by the end of this tutorial, you should be able to control any electronics appliances with your arduino using a relay module. This particular relay module can control typical household appliance up to 10a. How to use a relay with arduino arduino project hub. For demonstrating the working of this relay module, we have used an arduino uno board for controlling relays. Also make sure you have tighten all screws of the relay module. Arduino software working principle of arduinobluetooth module in this project, there are four main components used. Available in one, four and eight channel versions, these modules can switch up to 10a per channel. This is a very good example about what can be done with these small hardware projects from this site open source projects.
The first one has 4 pins, a ground and a vcc pin for powering the module and 2 input pins. The 4 channel relay module spdt single pole double throw can control up to 4 separate devices individually. The arduino relay module allows a wide range of microcontroller such as arduino, avr,pic, arm with digital outputs to control larger loads and devices like ac or dc motors, electromagnets, solenoids, and incandescent light bulbs. This wifi relay based on aithinker esp01 01s wifi module, we use the gpio0 of esp01 01s to control the relay by low level. Icstation micro usb 5v 4 channel relay module usb control relay module icse012a and other relay module on sale, arduino, robotics, raspberry pi zero, esp8266esp32, inverter, diy kits, development board, functional module, lcdoled display, wifi relay, o. Arduino relay module tutorial microcontroller tutorials. Controlling a relay module with the arduino is as simple as controlling any other output as well see later on. Many thanks to jlcpcb for highquality pcb, and easyeda web software for making the schematic here is my easyeda project feel free to edit and use it download project gerber file i made this little home automation project for my light and one small fan.
This relay module allows you to combine the processing power of the arduino to devices that use higher current and voltage. The library implements a set of methods for working with a digital relay module. The android app sends the serial data to the connected bluetooth module hc05 by clicking on button. Arduino relay tutorial control high voltage devices with arduino. This relay module has two channels those blue cubes. You can use the arduinos pin, pin 12, pin 11 and pin 10. Copy the following code to your arduino ide and upload it to your arduino board. Iot project of controlling home light using bluetooth module. It is fairly easy to turn that into a wifi controlled 4 channel relay with an esp8266. The rx and tx pins of the arduino connect to the tx and rx pins of the hc06 bluetooth module, respectively. Iot project of controlling home light using bluetooth module, arduino device, and 4 channel relay module with iot tutorial, how does it work, features, advantage and disadvantage, embedded devices and system, ecosystem, decision framework, solution architecture models, energy domain, biometric domain, security camera and door unlock system, smart agriculture, iot devices, transforming. This code uses arduino s serial communication protocol with the bluetooth module.
You will also learn how to connect external load to the relay and isolate the relays from. This is a 5v 4channel relay interface board, be able to control various appliances, and other equipments with large current. The sim900 module will communicate with arduino through serial communication and the arduino will turn the relay on or off according to the message it receives. Getting started with the 4 channel relay breakout bc robotics. Relay modules are assembled units commonly included with optocouplers, diodes, leds, transistors, etc so, for the arduino interfacing we just have to connect a supply voltage, gnd and input signal connection. Start by orienting the arduino and 4 channel breakout board next to one. A relay is an electrically operated switch that can be turned on or off, letting the current go through or not, and can be controlled with low voltages, like the 5v provided by the arduino pins. Mar 27, 2018 how to connect external load to the relay and isolate the relays from the arduino. To connect the 4 relay board to an arduino is very easy and allows you to turn on and off an wide range of devices, both ac and dc. Here, the in pin of the module is attached to d3 of the arduino uno. It is equipped with highcurrent relays that work under ac250v 10a or dc30v 10a.
This is a 5v 4channels relay module, it can be controlled directly by a wide range of microcontrollers such as arduino, avr, pic, arm and msp430. Its very important that you have and external power source. Esp8266 standalone wifi relay control use arduino for. How to use 4 channel relay to control ac load with arduino code. You may use it with our software drm softwaruniversal software for all our relay boards. As an example for this arduino relay tutorial we will. If you are curious about the different variants click this link 3. It does so by providing four relays that are rated for 7a at either 28vdc or 10a at 125vac. Sainsmart 4 channel 5v usb relay board module controller for automation robotics specification 4 spdt relays srd5vdcslc relay specification. Refer to the getting started page for installation instructions. So i am designing a simple project where my arduino reads analog values from a potentiometer, or rotation sensor, as it is called on ebay, and uses that value to determine how many relays to close. The arduino controls the relay through pin 8 pin 8 is connected to the relay in1 pin.
A smalland smart module with 4 relays, rs232 and rs485 interface. This is a low level 5v 4channel relay interface board, and each channel needs a 1520ma driver current. Relay module simulation in proteus projectiot123 technology. This programmability gives this board ultimate flexibility compared to other relay modules where features depend on the preprogrammed firmware and offer limited customizability. The code provided is for 2 to 16 channel relay module to control ac or dc load.
Icstation micro usb 5v 4channel relay module usb control. Esp 8266 there are a lot of variants available in the market. This video and code will help you turn on or turn off 4 solid state relay ssr using arduino wiring diagram for 4 channel ssr this is code to control 4 channel solid state relay ssr module using arduino written by ahmad shamshiri for on january 11, 2019 at 21. Here we have used 12v 10amp relay in this pcb board, but you can also use 5v relays.
I have arduino uno, and recently obtained esp8266 wifi relay by lc technology. Because relay module operats on 5v and esp8266 operate on 3. I designed this system as an alternative to the usbdmx 4 channel relay option. The opensource arduino software ide makes it easy to write code and upload it to the board. Both in1 and in2 comes from the microcontroller arduino uno in this case. This module should be powered with 5v, which is appropriate to use with an arduino. In this example we will connect a simple load such as a led at the output of the relay and will control it by using the arduino. Driving a 4 channel relay board with esp826601 and mqtt and. This relay module provides four relays that are rated for 7a at either 28vdc or 10a at 125vac. In1 pin controls the 1st relay attached on 2 relay module. Arduilay is an 8 channel ac relay box for use with arduino, maxmsp, processing, etc.
I have connected this module to arduino in a very simple way. A popular relay board that is available at the chinese webstores is a 4 channel opto isolated relay module. In this 4channel relay driver circuit we have used an optocoupler whic his triggered by active low signal, to trigger the npn transistor which further drives the relay. Android smartphone bluetooth application, bluetooth transceiver, arduino device, and 4 channel relay module. All four relays are connected with arduino at 8,9,10 and 11th pins in1, in2, in3, and in4, and 1 12v adapter is used for powering the circuit. Finally, the pir motion sensor is connected to pin 2. Sainsmart 4channel 5v relay module for arduino raspberry pi. You will learn the meaning of lower trigger and high trigger. A home automation project for light use with an esp8266 and 5v relay. I reccently bought a 4 relay module so i can create a light switch to turn off 110v light bulbs. Sainsmart 12v 4 channel usb relay automation module for. Handson technology open source electronics platform. It can be used to control various appliances and equipment with large current.
This is my second home automation project using the esp8266 nodemcu. Arduino code for 4 to 16 channel 5v relay module robojax. Arduino compatible these handy relay modules provide the easiest way to use your duinotech to switch real world devices. In this lesson, we will show you how the 1channel relay module works and how to use it with the osoyoo uno board to control high voltage devices. I have no idea how to use it and i dont know where things go example. Project requires 12v dc supply, all 4 trigger inputs require ttl signal, relay 1 to relay 4 inputs connected to d8 to d11 of arduino digital pins through. Then its a only a matter of just connecting the communication pins, labeled in1, in2, in3 and in4. Uno r3 board atmega328p atmega16u2 with usb cable for arduino for full codes. Esp8266 4 channel relay module home automation project. Arduino compatible 4 channel 12v relay module jaycar. There are other options such as a 2channel relay which consists of two 1channel relays on a single pcb. The best thank you for me is to subscribe to my channel. The sketch turns on or off the lamp via the serial monitor. The detail instruction, video tutorial, linebyline code explanation are provided to help you quickly get started with arduino.