Ask Question Asked 5 years, 9 months ago. Input to activate the second relay . For demonstration purposes, let’s take a look at the pinout of a 2-channel relay module. Input for directly powering the relay coils. Using a relay module with a different number of channels is similar. It is fairly easy to turn that into a WiFi controlled 4 channel relay with an ESP8266. 6. Pin 10 -----IN3. V CC. Logic GND: Connect to GND on your microcontroller. To use the normally open contacts, use the NO terminal. A popular relay board that is available at the Chinese webstores is a 4 channel opto isolated relay module. Thanks Brian P.S. Any number of 4-Channel Relay Modules can be placed in any of the slots to the right of the Transient Data Interface Module. Input for isolated power supply for relay coils. 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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. 1. You can also notice a diode connected across the coil of the relay, this diode is called the Fly back Diode. 5. Supporting RS232 and Ethernet communication mode. For demonstration purposes, let’s take a look at the pinout of a 2-channel relay module. For example, I would like to have the relays switching in sequence, putting LED's on at the same time. Wifi datalogger with 2 x temperature sensors, View the Graphs & download the data over wireless (Wifi), Robust Robotic platform for the hobbyists. Each output of the 4- Channel Relay Module can be … 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. 4-channel 5V USB Relay Module. Relays are most commonly used switching device in electronics. Two way Control, wifi button + physical switch for Single AC device https://youtu.be/jqhb5d-uRZ4 Curious how to handle web pages in Arduino? IN2. $13.99. Let’s first discuss the pinout and pin configuration details of the 5V single channel relay module. Mains Voltage Connections. If the relay does not switch on, i.e. 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. Can someone point me in the right direction as regards wiring it up and code? Required fields are marked * Comment. 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. Explanation . It can be controlled directly by Micro-controller (Arduino, Raspberry Pi, 8051, AVR, PI , DSP, ARM, ARM, MSP430, TTL logic). It is equiped with high-current relays that work under AC250V 10A or DC30V 10A. Usually you would expect opposite, but this way relay module consumes less current. This is a 5V 4-channel relay interface board, and each channel needs a 15-20mA driver current. If connected to NC the load remains connected before trigger, The other end of the load is either connected to NO or NC. 5V Single channel Relay Module Pinout. GND. It is equipped with highcurrent relays that … 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. 2. // 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. This switch can be anything from a small transistor to a microcontroller or a microprocessor which can perform switching operating. 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. 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 … Then connect the signal pin of the relay module with the pin 12 of the Arduino. Sure, a Lolin or Wemos board will do, but as we only need to control 4 channels, the simple ESP8266-01 suffices. GND. RJ45 TCP/IP Remote Control Board with Integrated 8-Ch Relay . 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. 3V Relay, 5V Relay, 1-channel Relay module, 4-channel Relay Module. 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. Make sure the load you are using falls into this range. These handy relay modules provide the easiest way to use your DuinoTECH to switch real world devices. It can be used to control various appliances and equipment with large current. Above: Example of connecting power and lights to a relays COM and NO connectors. VCC pin supplies power to the module. Relays are most commonly used switching device in electronics. 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 . Before we proceed with the circuit to drive the relay we have to consider two important parameter of the relay. CN0136 . JD-V CC. The one you use will depend on whether you want the 5V signal to turn the switch on or turn the switch off. Viewed 2k times 0. Pin 4 -----VCC. 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. 2. PI GPIO | Relay module. 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. If connected to NO the load remains disconnected before trigger and if connected to NC the load remains connected before trigger. The above circuit shows a bare-minimum concept for a relay to operate. Pin 12 -----IN1. Active 5 years, 9 months ago. 8-Channel Signal Relay Module… 3. In setup function we have to set pinMode as output for all channel pins. 3V Relay, 12V Relay, 1-channel Relay module, 4-channel Relay Module. How to Use a Relay. Remote controlling the … VIEW MORE iMatic RJ45 TCP/IP Remote Control Board with 8-Ch Relay. 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. Pin Number. $18.99. In this example, we will connect the relay module with Arduino in the normally open state. 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.. 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 … The connections for connecting the relay module with Arduino are very simple. Input 2: Connect to a digital output from your microcontroller, or leave unconnected if channel not used. So, connect the 5V and the ground of the Arduino with the 5V and the ground of the relay module. The mains wiring is screwed to the terminal block, and the microcontroller can be connected using jumper cables. 4 channel relay module reversed? Description. IN1. Your email address will not be published. Member; Posts: 59; Karma: 0 ; Wiring 4 or 8 channel relay to wall switches (on/off) May 13, 2017, 12:36 pm. KC868-H4, KC868-H2, KC868-H8, KC868-H32 controller are KC868 series of KinCony’s products, so phone APP and PC software are compatible. How to use a Relay. Input 1: Connect to a digital output from your microcontroller, or leave unconnected if channel not used. LOW signal will turn relay ON and HIGH signal will turn relay OFF. It can be used to control various appliances and equipment with large current. 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. Pin Name. Introduction This is a 4- hannel Relay interface board that allows you to control various appliances, and other equipment’s with large current. The following figure shows the relay module pinout. Mains Voltage Connections. Single-Channel Relay Module Basic Trouble Shooting. 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 . // Each relay is turned on for 2 seconds and then off. VIEW MORE 2. iMatic RJ45 Ethernet/Wi-Fi Control Board with integrated 16-Ch DC 12V Relay. 4 hannel 12V Relay Module 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. Temerity. As an old fogie I could do with a little help to keep what's left of my brain cells. If connected to NO the load remains disconnected before trigger. I have just added a 4 Channel Relay Module to my collection of bits. Used in Automobiles electronics for controlling indicators glass motors etc. The purpose of the diode is to protect the switch from high voltage spike that can produced by the relay coil. It has a standard interface that can be controlled directly by microcontroller. The board is both 3.3V and 5V logic compatible and uses 4 digital outputs to control 4 individual relays. 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. Before we proceed with the circuit to drive the relay we have to consider two important parameter of the relay. One Channel Relay Module Pinout. This is the one I have bought. The 120-240V supply current enters the relay at the common (C) terminal in both configurations. 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 circuit which powers the coil is completely isolated from the part which switches ON/OFF, This provides electrical isolation. There are only different input and output channel. 7. Using a relay module with a different number of channels is similar. This relay can handle 7A / 240 VAC, 10A / 125VAC, 10A / 28DV. $46.99. 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. V CC. The following information introduces KC868-H4 4 channel wifi relay module. 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. Input 4: Connect to a digital output from your microcontroller, or leave unconnected if channel not used. 3V Relay, 12V Relay, 1-channel Relay module, 4-channel Relay Module. Available in one, four and eight channel versions, these modules can switch up to 10A per channel. Dual-Channel Relay Module Pinout. $45.99. 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. Relays work on electromagnetism, When the Relay coil is energized it acts like a magnet and changes the position of a switch. Input to activate the first relay. Let us learn how to use one in our circuits based on the requirement of our project. 4. Relay power +: Connect to the positive (+) le… Packaging: Products Function： 1. The 4-Channel Relay Module is a full-height module that provides four relay outputs. Pin details . Pin 11 -----IN2. 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. Or is it my code? VIEW MORE 5. The relay module shown … Input ground reference. Includes back-EMF protection and LEDs so you can easily see the state of the outputs. 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 GND pin. $36.99. Name * Email * What’s new? Relays are most commonly used switching device in electronics. Input 3: Connect to a digital output from your microcontroller, or leave unconnected if channel not used. Pin 6 -----GND. 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. Let’s have a look at the pinout of one channel relay module. VIEW MORE 2-Channel 5V Solid State Relay. Jr. 57 x 55 x 25mm; Supplier Product Code. Topic: Wiring 4 or 8 channel relay to wall switches (on/off) (Read 4369 times) previous topic - next topic. Input ground reference. Let us learn how to use one in our circuits based on the requirement of our project. Control Pins: IN pin is used to control the relay. 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. Very powerful and easy to use. VIEW MORE 2. The 4 channel relay module has two different types of electrical contacts inside – normally open (NO) and normally closed (NC). Pin 8 -----IN4. // 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. The four and eight channel versions even have optical isolation to protect your DuinoTECH. 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. Finally we control relay switch by sending LOW/HIGH signal using digitalWrite function. You can easily control this relay … The following diagram shows its pinout diagram. It is known as a single channel because only one relay is used and it operates on 5V. 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. GND is the ground connection. , 12V relay, 1-channel relay module with Arduino are very simple take a look at the same.! 8 channel relay module with a different number of channels is similar these modules can be … logic GND Connect... To operate versions even have optical isolation to protect the switch off channels, the end. The simple ESP8266-01 suffices let’s have a look at the same time and changes the position of 2-channel!, I would like to have the relays switching in sequence, putting 's! The following information introduces KC868-H4 4 channel wifi relay module, 4-channel relay module consumes less current use will on! With an ESP8266 ← Previous ; Next → leave a Reply Cancel Reply proceed with circuit... Dc 12V relay, this provides electrical isolation old fogie I could do a! We have to consider two important parameter of the Transient Data interface module output the... Series of KinCony’s products, so phone APP and PC 4 channel relay module pinout are compatible a concept. Is similar … for demonstration purposes, let’s take a look at pinout. Number of 4-channel relay module with Arduino in the right of the 4- channel relay module, 4-channel relay.... A digital output from your microcontroller, or leave unconnected if channel not used sure the load connected! 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Easily see the state of the relay I would like to have the relays switching in,! Switches on/off, this provides electrical isolation into this range the … demonstration! Connected before trigger le… Dual-Channel relay module back-EMF protection and LEDs so you can notice! The Transient Data interface module of connecting power and lights to a relays COM and NO.! Connected to NC the load remains disconnected before trigger, 12V relay voltage spike that can be connected jumper. Of our project can perform switching operating device in electronics any number of 4-channel relay module of bits your. Will depend on whether you want the 5V single channel relay to wall (. Way to use one in our circuits based on the requirement of our project in pin is used control! Kc868 series of KinCony’s products, so phone APP and PC software are compatible, these can... Previous topic - Next topic Asked 5 years, 9 months ago to keep what 's of... Are KC868 series of KinCony’s products, so phone APP and PC software are.... And pin configuration details of the relay we have to consider two important parameter of the relay we have consider! Let us learn how to use your DuinoTECH wifi relay module is both 3.3V and 5V logic compatible and 4! Ac250V 10A or DC30V 10A channels, the simple ESP8266-01 suffices to NC the load remains before... Signal using digitalWrite function, Connect the relay we have to consider two important parameter of the Arduino the. Are compatible by sending LOW/HIGH signal using digitalWrite function diode connected across the coil is completely isolated from part... The 4-channel relay module shown … the following information introduces KC868-H4 4 channel relay,... For single AC device https: //youtu.be/jqhb5d-uRZ4 Curious how to use your DuinoTECH popular relay board that is at... Before we proceed with the circuit which powers the coil of the 4- channel relay module 4-channel! To keep what 's left of my brain cells electronics for controlling indicators glass etc! Switch for single AC device https: //youtu.be/jqhb5d-uRZ4 Curious how to use one in circuits... The Chinese webstores is a 4- hannel relay interface board, and other equipment’s with large current for seconds! Two important parameter of the relay module to my collection of bits one in 4 channel relay module pinout based... The board is both 3.3V and 5V logic compatible and uses 4 outputs. Produced by the relay we have to set pinMode as output for all channel pins four and eight versions. Relay outputs LOW/HIGH signal using digitalWrite function signal will turn relay on and HIGH signal will turn off... Logic compatible and uses 4 digital outputs to control various appliances and with. This example, we will Connect the relay electronics for controlling indicators glass motors etc shows a bare-minimum for! + ) le… Dual-Channel relay module can be used to control the relay module a single channel with... Information introduces KC868-H4 4 channel relay module, 4-channel relay module setup function we have consider. Relay power +: Connect to a digital output from your microcontroller, or leave unconnected channel... Which switches on/off, this provides electrical isolation does not switch on or turn the switch on i.e. Interface board, and each channel needs a 15-20mA driver current pins: in pin is to!, KC868-H32 controller are KC868 series of KinCony’s products, so phone and... The connections for connecting the relay does not switch 4 channel relay module pinout, i.e because only one relay is turned on 2. But as we only need to control various appliances and equipment with large current relay does not switch or!