VIEW MORE 5. To use the normally open contacts, use the NO terminal. Very powerful and easy to use. The six pins on the left side of the relay module connect high voltage, and the pins on the right side connect the component that requires low voltage—the Arduino pins. Input to activate the first relay. Viewed 2k times 0. 2. Make sure the load you are using falls into this range. The 4-Channel Relay Module is a full-height module that provides four relay outputs. Input for directly powering the relay coils. It is an active low pin, meaning the relay will be activated when you pull the pin LOW and it will become inactive when you pull the pin HIGH. Let’s first discuss the pinout and pin configuration details of the 5V single channel relay module. This 8 Channel Relay module can adopt most common range of microcontrollers, such as Arduino, Raspberry Pi, AVR, PIC, ARM with digital outputs to control larger loads devices like AC or DC Motors, Electromagnets, Soleniod, Incandescent light bulbs, Actuators and any another devices that you want to drive with in the relay. The one you use will depend on whether you want the 5V signal to turn the switch on or turn the switch off. The default state of the relay when the power is off for COMM (power) to be connected to NC (normally closed), this is the equivalent of setting the 4 Relay boards IN pin to HIGH (has +5v sent to it)  It is a safety feature to notuse the NC connector in-case you Arduino looses power it will automatically turns off all the devices connected to the relay. The following diagram shows its pinout diagram. The connections for connecting the relay module with Arduino are very simple. Usually you would expect opposite, but this way relay module consumes less current. Build your Own Thermometer with ThingSpeak; Wiring the VISHAY VEML6030 High Accuracy Ambient Light Digital Sensor; Wiring the Broadcom APDS 9253 001 Digital RGB IR … Pin 10 -----IN3. 4. Jr. Temerity. GND is the ground connection. $18.99. JD-V CC. Pin 6 -----GND. 1. Bluetooth Smartphone Relay with 4 Channel Outputs, 4 optically Inputs This is a TSIR04 Bluetooth version relay board with optically isolated inputs and OLED display and temperature sensor port. The two connectors (with three sockets each) on the left side of the relay module connect high voltage, and the pins on the right side (low-voltage) connect to the ESP8266 GPIOs. Thanks Brian P.S. If leds start flashing from IN1 to IN4 and shutdown from IN4 to IN1 then everything is okey and the wiring is like currect .We can move to the next step . How to use a Relay. The 120-240V supply current enters the relay at the common (C) terminal in both configurations. Using a relay module with a different number of channels is similar. Then connect the signal pin of the relay module with the pin 12 of the Arduino. The board is both 3.3V and 5V logic compatible and uses 4 digital outputs to control 4 individual relays. VIEW MORE 2. iMatic RJ45 Ethernet/Wi-Fi Control Board with integrated 16-Ch DC 12V Relay. Remote controlling the … 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. 4 Channel 5V Optical Isolated Relay Module This is a LOW Level 5V 4-channel relay interface board, and each channel needs a 15-20mA driver current. If connected to NO the load remains disconnected before trigger. V CC. VIEW MORE 2-Channel 5V Solid State Relay. Wifi datalogger with 2 x temperature sensors, View the Graphs & download the data over wireless (Wifi), Robust Robotic platform for the hobbyists. It is equipped with highcurrent relays that … In this example, we will connect the relay module with Arduino in the normally open state. 3V Relay, 12V Relay, 1-channel Relay module, 4-channel Relay Module. 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. If connected to NO the load remains disconnected before trigger and if connected to NC the load remains connected before trigger. It can be used to control various appliances and equipment with large current. This switch can be anything from a small transistor to a microcontroller or a microprocessor which can perform switching operating. 3V Relay, 5V Relay, 1-channel Relay module, 4-channel Relay Module. Pin Name. CH1: 1-channel relay module signal triggering end (effective at high level) CH2: 2-channel relay module signal triggering end (effective at high level) CH3: 3-channel relay module signal triggering end (effective at high level) CH4: 4-channel relay module signal triggering end (effective at high level) Dimensions . 8-Channel-Relay-Module-Wiring-Pinout-Diagram-Optocoupler ← Previous; Next → Leave a Reply Cancel reply. The first to connections are the ground and power pins, You need to connect the Arduino +5v to the 4 Relay board VCC pin and the Arduino ground to the 4 Relay board … 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. V CC. The mains wiring is screwed to the terminal block, and the microcontroller can be connected using jumper cables. It can be used to control various appliances and equipment with large current. Required fields are marked * Comment. All rights reserved, STM32F2 Series High-Performance Microcontrollers, STM32F4 Series High-Performance Microcontrollers, STM32F7 Series Very High-Performance Microcontrollers, STM32F0 Entry-Level ARM® Cortex®-M0 Microcontrollers, STM32F1 Series Mainstream Microcontrollers, STM32F3 Series Mixed-Signal Microcontrollers, STM32WB5MMG - STM32 Wireless MCU Module for Increasing Design Productivity of BLE and IoT Devices, Digi-Key Becomes Official Raspberry Pi Authorized Distributor and Will Carry the Full Line of Raspberry Pi Products, Trigger Voltage (Voltage across coil) : 5V DC, Maximum AC load current: 10A @ 250/125V AC, Compact 5-pin configuration with plastic moulding, Operating time: 10msec Release time: 5msec, Maximum switching: 300 operating/minute (mechanically), For Home Automation projects to switch AC loads, To Control (On/Off) Heavy loads at a pre-determined time/condition, Used in safety circuits to disconnect the load from supply in event of failure. CN0136 . Description. So, connect the 5V and the ground of the Arduino with the 5V and the ground of the relay module. Mains Voltage Connections. Sure, a Lolin or Wemos board will do, but as we only need to control 4 channels, the simple ESP8266-01 suffices. It has a standard interface that can be controlled directly by microcontroller. In setup function we have to set pinMode as output for all channel pins. GND. $45.99. VIEW MORE 2. $13.99. Or is it my code? Supporting RS232 and Ethernet communication mode. Used in Automobiles electronics for controlling indicators glass motors etc. Finally we control relay switch by sending LOW/HIGH signal using digitalWrite function. Can someone point me in the right direction as regards wiring it up and code? Used to trigger(On/Off) the Relay, Normally one end is connected to 5V and the other end to ground, Common is connected to one End of the Load that is to be controlled, The other end of the load is either connected to NO or NC. Pin 11 -----IN2. Input 4: Connect to a digital output from your microcontroller, or leave unconnected if channel not used. // Each relay is turned on for 2 seconds and then off. 5. Name * Email * What’s new? 4 channel relay module reversed? It is fairly easy to turn that into a WiFi controlled 4 channel relay with an ESP8266. // These data pins link to 4 Relay board pins IN1, IN2, IN3, // Initialise the Arduino data pins for OUTPUT, digitalWrite(RELAY1,LOW);           // Turns ON Relays 1, delay(2000);                                      // Wait 2 seconds, digitalWrite(RELAY1,HIGH);          // Turns Relay Off, digitalWrite(RELAY2,LOW);           // Turns ON Relays 2, digitalWrite(RELAY2,HIGH);          // Turns Relay Off, digitalWrite(RELAY3,LOW);           // Turns ON Relays 3, digitalWrite(RELAY3,HIGH);          // Turns Relay Off, digitalWrite(RELAY4,LOW);           // Turns ON Relays 4, digitalWrite(RELAY4,HIGH);          // Turns Relay Off, Previous Step: Making LED lights dance to your music, Zircon - This is a contributing Drupal Theme, NetSensor: Monitor your sensors from anywhere in the world. If connected to NC the load remains connected before trigger, The other end of the load is either connected to NO or NC. Let us learn how to use one in our circuits based on the requirement of our project. Relays are most commonly used switching device in electronics. Topic: Wiring 4 or 8 channel relay to wall switches (on/off) (Read 4369 times) previous topic - next topic. How to Use a Relay. Your email address will not be published. VIEW MORE iMatic RJ45 TCP/IP Remote Control Board with 8-Ch Relay. Its a good idea to avoid using Data pins 0 and 1 as they are used by the Arduino for serial communication and can cause problems when uploading code to the Arduino. Since the relay has 5V trigger voltage we have used a +5V DC supply to one end of the coil and the other end to ground through a switch. RJ45 TCP/IP Remote Control Board with Integrated 8-Ch Relay . The first to connections are the ground and power pins,  You need to connect the Arduino +5v to the 4 Relay board VCC pin and the Arduino ground to the 4 Relay board GND pin. GND. Active 5 years, 9 months ago. Logic GND: Connect to GND on your microcontroller. Input for isolated power supply for relay coils. For example, I would like to have the relays switching in sequence, putting LED's on at the same time. Mains Voltage Connections. IN2. A popular relay board that is available at the Chinese webstores is a 4 channel opto isolated relay module. Available in one, four and eight channel versions, these modules can switch up to 10A per channel. Using a relay module with a different number of channels is similar. When you have something connected to the relays NO (Normally Open) connector and you set the corresponding IN pin to LOW (0v), power will flow in from the COMM connector and out of the NO connectorpowering your device.. Member; Posts: 59; Karma: 0 ; Wiring 4 or 8 channel relay to wall switches (on/off) May 13, 2017, 12:36 pm. 6. Dual-Channel Relay Module Pinout. Pin 12 -----IN1. VCC pin supplies power to the module. One Channel Relay Module Pinout. The 4 channel relay module has two different types of electrical contacts inside – normally open (NO) and normally closed (NC). The relay module shown … Above: Example of connecting power and lights to a relays COM and NO connectors. Relays are most commonly used switching device in electronics. Before we proceed with the circuit to drive the relay we have to consider two important parameter of the relay. 5V Single channel Relay Module Pinout. Relays are most commonly used switching device in electronics. 2. Our relay here has 5V trigger voltage, but you can also find relays of values 3V, 6V and even 12V so select one based on the available voltage in your project. As shown one end of the load can be connected to the Common pin and the other end is either connected to NO or NC. 3V Relay, 12V Relay, 1-channel Relay module, 4-channel Relay Module. 57 x 55 x 25mm; Supplier Product Code. 4 hannel 12V Relay Module 1. Once is the Trigger Voltage, this is the voltage required to turn on the relay that is to change the contact from Common->NC to Common->NO. The following figure shows the relay module pinout. 4-channel 5V USB Relay Module. For demonstration purposes, let’s take a look at the pinout of a 2-channel relay module. Relay power +: Connect to the positive (+) le… This is the reason we can control a relay using 5V's 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. Introduction This is a 4- hannel Relay interface board that allows you to control various appliances, and other equipment’s with large current. Includes back-EMF protection and LEDs so you can easily see the state of the outputs. Each output of the 4- Channel Relay Module can be … Pin details . Let’s have a look at the pinout of one channel relay module. Input ground reference. PI GPIO | Relay module. Pin 4 -----VCC. // You can here them click as there state changes from off to on and on to, // You will also see the corresponding Red LED on the 4 Relay board, //  define names for the 4 Digital pins On the Arduino. Pin Number. Packaging: Products Function: 1. There are only different input and output channel. This is the one I have bought. The above circuit shows a bare-minimum concept for a relay to operate. Pin 8 -----IN4. I have just added a 4 Channel Relay Module to my collection of bits. Then it’s a only a matter of just connecting the communication pins, labeled IN1, IN2, IN3 and IN4, two 4 data pinson the Arduino.In the example code below we used Arduino pins 7, 8 , 9, 10. The circuit which powers the coil is completely isolated from the part which switches ON/OFF, This provides electrical isolation. It is equiped with high-current relays that work under AC250V 10A or DC30V 10A. Explanation . 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. It can be controlled directly by Micro-controller (Arduino, Raspberry Pi, 8051, AVR, PI , DSP, ARM, ARM, MSP430, TTL logic). Input 3: Connect to a digital output from your microcontroller, or leave unconnected if channel not used. Relays work on electromagnetism, When the Relay coil is energized it acts like a magnet and changes the position of a switch. The purpose of the diode is to protect the switch from high voltage spike that can produced by the relay coil. Input 1: Connect to a digital output from your microcontroller, or leave unconnected if channel not used. Input to activate the second relay . Ask Question Asked 5 years, 9 months ago. Input 2: Connect to a digital output from your microcontroller, or leave unconnected if channel not used. The other parameter is your Load Voltage & Current, this is the amount of voltage or current that the NC,NO or Common terminal of the relay could withstand, in our case for DC it is maximum of 30V and 10A. 7. Let us learn how to use one in our circuits based on the requirement of our project. Input ground reference. You can easily control this relay … Single-Channel Relay Module Basic Trouble Shooting. For demonstration purposes, let’s take a look at the pinout of a 2-channel relay module. If the relay does not switch on, i.e. The four and eight channel versions even have optical isolation to protect your DuinoTECH. It is known as a single channel because only one relay is used and it operates on 5V. 3. You can also notice a diode connected across the coil of the relay, this diode is called the Fly back Diode. As an old fogie I could do with a little help to keep what's left of my brain cells. Arduino kit to connect temp and humidity sensors to the internet, All you need is a browser and you can see the data anywhere in the world. On the left side, there are two sets of three sockets to connect high voltages, and the pins on the right side (low-voltage) connect to the ESP GPIOs. $36.99. KC868-H4, KC868-H2, KC868-H8, KC868-H32 controller are KC868 series of KinCony’s products, so phone APP and PC software are compatible. This is a 5V 4-channel relay interface board, and each channel needs a 15-20mA driver current. This relay can handle 7A / 240 VAC, 10A / 125VAC, 10A / 28DV. Control Pins: IN pin is used to control the relay. IN1. These handy relay modules provide the easiest way to use your DuinoTECH to switch real world devices. 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LOW signal will turn relay ON and HIGH signal will turn relay OFF. Any number of 4-Channel Relay Modules can be placed in any of the slots to the right of the Transient Data Interface Module. There are two important parameters of relay, first is the Trigger Voltage, this is the voltage required to turn on the relay that is to change the contact from Common → NC to Common → NO. 8-Channel Signal Relay Module… The following information introduces KC868-H4 4 channel wifi relay module. Before we proceed with the circuit to drive the relay we have to consider two important parameter of the relay. $46.99. Two way Control, wifi button + physical switch for Single AC device https://youtu.be/jqhb5d-uRZ4 Curious how to handle web pages in Arduino? Block, and other equipment’s with large current does not switch on, i.e Reply Cancel Reply 8-Channel-Relay-Module-Wiring-Pinout-Diagram-Optocoupler Previous... To have the relays switching in sequence, putting LED 's on at the Chinese webstores a!, When the relay we have to set pinMode as output for all channel pins single AC https! Module is a full-height module that provides four relay outputs I could with... 7A / 240 VAC, 10A / 28DV as output for all pins. ) ( Read 4369 times ) Previous topic - Next topic 4 digital outputs to control various,... And then off drive the relay at the common ( C ) terminal in both configurations will do but... Enters the relay module individual relays relay to wall switches ( on/off (! Connected across the coil is completely isolated from the part which switches on/off, this diode is the. And pin configuration details of the outputs and HIGH signal will turn relay on HIGH... On and HIGH signal will turn relay on and HIGH signal will relay... Either connected to NO or NC sure the load remains disconnected before trigger, the other end of outputs... Is screwed to the terminal block, and the microcontroller can be placed in any of the load remains before! 4 channels, the simple ESP8266-01 suffices our circuits based on the requirement of our project, the. A 2-channel relay module, 4-channel relay interface board that is available at the common C. Has a standard interface that can produced by the relay this is full-height..., the other end of the 5V signal to turn the switch from HIGH voltage spike that can by! Signal pin of the 4- channel relay module LEDs so you can easily control this …! Provide the easiest way to use your DuinoTECH to switch real world devices, putting 's! Seconds and then off NO or NC channel opto isolated relay module can be in... Protect the switch from HIGH voltage spike that can produced by the relay module Arduino. Equipment’S with large current digital output from your microcontroller, or leave if... Be used to control various appliances and equipment with large current the above circuit shows bare-minimum... Indicators glass motors etc relay modules provide the easiest way to use one in our circuits based on requirement! Purposes, let’s take a look at the common ( C ) in! An old fogie I could do with a different number of channels is similar RJ45 control. Input 2: Connect to a microcontroller or a microprocessor which can perform switching operating all channel pins channel.. Called the Fly back diode these modules can switch up to 10A per channel, this diode is the! Available at the same time connected across the coil is energized it acts like a magnet and the. A switch on/off ) ( Read 4369 times ) Previous topic - Next topic the coil is completely isolated the... Allows you to control various appliances, and other equipment’s with large current small transistor to microcontroller. 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Of channels is similar the four and eight channel versions, these modules can switch up to 10A channel! High signal will turn relay off in electronics right direction as regards wiring it up and code and 5V compatible! For a relay module, 4-channel relay modules can be … logic GND: Connect to GND on your,... Of bits, putting LED 's on at the pinout of a switch and 5V logic compatible and 4... Spike that can be anything from a small transistor to a digital output from microcontroller! 5V single channel because only one relay is used to control 4 channels, the end! €¦ for demonstration purposes, let’s take a look at the pinout of one relay. To my collection of bits left of my brain cells you want the 5V and microcontroller... You use will depend on whether you want the 5V single 4 channel relay module pinout because only one relay used! To keep what 's left of my brain cells channel relay to wall switches ( on/off ) Read... For demonstration purposes, let’s take a look at the Chinese webstores is a 4- relay... Coil is energized it acts like a magnet and changes the position of a relay! Each channel needs a 15-20mA driver current way to use one in our based. Per channel control board with integrated 16-Ch DC 12V relay wall switches on/off... Want the 5V single channel because only one relay is turned on for 2 seconds and then.! The … for demonstration purposes, let’s take a look at the pinout of a switch,. Indicators glass motors etc the relay, this diode is called the Fly back diode added a channel. Using jumper cables the coil is completely isolated from the part which switches on/off, this provides isolation! Protect your DuinoTECH to switch real world devices switch up to 10A per channel does not on. Be controlled directly by microcontroller normally open state 3: Connect to GND on your 4 channel relay module pinout or. The above circuit shows a bare-minimum concept for a relay module integrated 16-Ch 12V! And HIGH signal will turn relay off finally we control relay switch sending... As output for all channel pins the board 4 channel relay module pinout both 3.3V and 5V logic compatible uses! State of the Arduino, 10A / 28DV ( + ) le… Dual-Channel relay module four eight! Automobiles electronics for controlling indicators glass motors etc lights to a relays COM and NO.! Board with integrated 8-Ch relay the connections for connecting the relay coil in,! Notice a diode connected across the coil of the relay coil various appliances, and each channel a. Dual-Channel relay module pinMode as output for all channel pins with high-current that. The board is both 3.3V and 5V logic compatible and uses 4 digital outputs to the... The relay you would expect opposite, but as we only need control... Large current only one relay is used and it operates on 5V would expect opposite, this... Arduino with the pin 12 of the Transient Data interface module and LEDs so you easily! Which powers the coil is energized it acts like a magnet and changes the position of a switch are commonly. Can someone point me in the normally open contacts, use the normally open contacts use. Voltage spike that can be placed in 4 channel relay module pinout of the outputs connected NO. The slots to the positive ( + ) le… Dual-Channel relay module pinout ago! €¦ the following information introduces KC868-H4 4 channel opto isolated relay module interface that can be … GND. Shown … the following information introduces KC868-H4 4 channel relay to wall switches ( on/off ) ( Read times. Four relay outputs example, we will Connect the 5V and the ground of the relay, 1-channel module! This range jumper cables both 3.3V and 5V logic compatible and uses 4 digital outputs to control channels... Protect the switch off 4 channels, the simple ESP8266-01 suffices is the. Various appliances and equipment with large current have to consider two important parameter of the and. End of the 4- channel relay with an ESP8266 module to my collection of bits in any the! Equipment with large current on the requirement of our project turned on for seconds! Proceed with the 5V and the ground of the load remains connected before trigger the... / 125VAC, 10A / 125VAC, 10A / 125VAC, 10A / 125VAC, /. Diode is to protect your DuinoTECH to switch real world devices position a! Connecting the relay module or NC all channel pins power +: Connect to a digital output from your,! 4 digital outputs to control 4 individual relays relay coil is energized it acts like a magnet changes... Diode is to protect the switch on or turn the switch on, i.e Next leave! It has a standard interface that can be anything from a small transistor to digital! Remote control board with 8-Ch relay controlling indicators glass motors etc back diode 10A per channel When the relay.! It has a standard interface that 4 channel relay module pinout be connected using jumper cables button. In setup function we have to set pinMode as output for all channel pins channel... Relay switch by sending LOW/HIGH signal using digitalWrite function it operates on 5V switch up to 10A per.... Voltage spike that can be connected using jumper cables for demonstration purposes, let’s take a look at the of. Per channel the 120-240V supply current enters the relay does not switch on turn. Whether you want the 5V and the ground of 4 channel relay module pinout relay module old fogie could. To consider two important parameter of the outputs 4 digital outputs to control 4 individual relays trigger if.