8 канальный релейный модуль для ардуино

Реле 8 каналов 5 В

Описание

Релейный модуль RelayModule-5V-8 — это восьмиканальный модуль реле на 5 В, управляемый с помощью контролера Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic или с компьютера.

Релейный модуль позволяет прибору с питанием 5 В управлять нагрузкой под переменным напряжением 220 В.
Релейный модуль RelayModule-5V-8 имеет 8 каналов управления, каждый управляется своим входным сигналом. Входные части схем каналов имеют общее питание 5 В.

  • Релейный модуль для коммутации нагрузки.
  • При решении задач автоматизации на основе платформы Arduino нередко возникает необходимость управления мощными нагрузками, такими, как насосы, двигатели, лампы освещения и т.д. Для управления различными приборами с большим входным током используют релейные модули Arduino.
  • Модуль электромагнитного реле RelayModule-5V-8 предназначен для управления внешними силовыми нагрузками в устройствах (роботах) на платформе ARDUINO в случаях, когда требуется гальваническая развязка самой нагрузки и управляющего модуля. Это увеличивает электробезопасность оператора управляющего прибора и исключает влияние помех в линиях нагрузки.
  • Модуль обеспечивает коммутацию до 250В 10А переменного тока или 30В 10А постоянного тока.
  • Реле имеет как нормально закрытый, так и нормально отрытый контакт и снабжено диодом защиты.
  • Модуль содержит светодиоды, отображающие наличие питания и подачу команд управления.
  • Входная цепь канала содержит вместо транзистора оптрон.
  • Внимание! Релейный модуль находится в нормально закрытом состоянии. В этом состоянии ток через его клеммы не течет. Для открытия реле, необходимо подать на управляющий пин сигнал низкого уровня — 0В.

Характеристики
Напряжение питания: 5 В
Потребляемый ток: 15 мА — 20 мА
Сигнал включение: 0 В (низкий уровень)
Количество реле: 8 шт.
Тип реле: электромеханическое
Номинальный ток нагрузки: 10 А
Напряжение коммутации: до 250 В (переменный) и 30 В (постоянный)
Входной сигнал цифровой логический
Стандартный интерфейс контроллеров Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic или с компьютера
Светодиодная индикация состояния каждого реле
Размер: 141 x 50 x 18.5 мм
Вес: 125 гр.

Питание релейного модуля осуществляется или от управляющего устройства, или от внешних источников питания (блоков питания, батарей). Если вам нужна полная оптическая изоляция подключите VCC к выходу +5В Arduino, но не подключайтесь к Gnd. Уберите джампер VСС JD_VCC. Подключите отдельные +5В к выводу JD_VCC и Gnd с платы – это даст питание для транзисторов и обмотки реле.
Если же вам достаточно изоляции реле, то можно просто запитать модуль от выводов Arduino +5В и Gnd и оставить джампер VСС JD_VCC на своем месте.

Обозначение выводов модуля
Вывод с меткой «VCC» –> плюс питания. На него должно подаваться напряжение питания 5 В.
Вывод с меткой «IN1» –> вход управляющего сигнала реле 1.
Вывод с меткой «IN2» –> вход управляющего сигнала реле 2.
Вывод с меткой «IN3» –> вход управляющего сигнала реле 3.
Вывод с меткой «IN4» –> вход управляющего сигнала реле 4.
Вывод с меткой «IN5» –> вход управляющего сигнала реле 5.
Вывод с меткой «IN6» –> вход управляющего сигнала реле 6.
Вывод с меткой «IN7» –> вход управляющего сигнала реле 7.
Вывод с меткой «IN8» –> вход управляющего сигнала реле 8.
Вывод с меткой «GND» –> общий провод

ВНИМАНИЕ! При подключении модуля к схеме следует тщательно соблюдать полярность питания. Переполюсовка ведет к выходу модуля из строя без права на последующий гарантийный ремонт или замену.

Источник

8 Channel 5V Relay Module

Contents

Introduction

This is a 8-channel LOW level trigger relay and it can be applied to Arduino and Raspberry Pi. Relays are suitable for driving high power electronic devices such as lights, electric fans and air condition. A relay can be used to control high voltages with a low voltage by connecting it to an MCU.

Schematic

Principle of relay

See the picture below: A is an electromagnet, B armature, C spring, D moving contact, and E fixed contacts. There are two fixed contacts, a normally closed one and a normally open one. When the coil is not energized, the normally open contact is the one that is off, while the normally closed one is the other that is on.

Add a certain voltage to the coil and some currents will pass through the coil thus generating the electromagnetic effect. So the armature overcomes the tension of the spring and is attracted to the core, thus closing the moving contact of the armature and the normally open contact (or you may say releasing the former and the normally closed contact). After the coil is de-energized, the electromagnetic force disappears and the armature moves back to the original position, releasing the moving contact and normally closed contact. The closing and releasing of the contacts results in power on and off of the circuit.

Features

  • Support control of 10A 30V DC and 10A 250V AC signals
  • 5V 8-Channel Relay interface board
  • LOW level trigger, equipped with indicator easy to recognize the working status
  • Each relay has NO and NC ports, easier to connect and control the connected devices
  • Selection of plastic material for high temperature and better chemical solution performance.
  • PCB size: 5.7 x 13.8 cm

Ports Description

  • VCC: Connected to positive supply voltage (supply power according to relay voltage)
  • GND: Connected to negative supply voltage
  • IN1: Signal(LOW Level) triggering terminal 1 of relay module
  • IN2: Signal(LOW Level) triggering terminal 2 of relay module
  • IN3: Signal(LOW Level) triggering terminal 3 of relay module
  • IN4: Signal(LOW Level) triggering terminal 4 of relay module
  • IN5: Signal(LOW Level) triggering terminal 5 of relay module
  • IN6: Signal(LOW Level) triggering terminal 6 of relay module
  • IN7: Signal(LOW Level) triggering terminal 7 of relay module
  • IN8: Signal(LOW Level) triggering terminal 8 of relay module

The meaning of high and low level:

INx stands for the contacts including IN1, IN2, IN3 and other pins in the following part.

Triggered at high level means a forward voltage exists between signal triggering terminal (INx) and negative supply voltage. It generally connects positive supply voltage and triggering terminal together. When triggering terminal has positive supply voltage or reaches triggering voltage, the relay will pull in.

While triggered at low level means the voltage between the signal triggering terminal (INx) and negative supply voltage is 0V, or the voltage at the triggering terminal is lower than positive supply voltage. If it lowers to a triggering voltage, the relay will pull in. It generally connects negative supply voltage and triggering terminal together.

Each submodular of the relay has one NC(nomalclose), one NO(nomalopen) and one COM(Common). So there are 8 NC, 8NO and 8 COM of the channel relay in total. NC stands for the normal close port contact and the state without power; No stands for the normal open port contact and the state with power. COM means the common port. You can choose NC port or NO port according to whether power or not.

Application

Testing Experiment

When a low level is supplied to signal terminal of the 8-channel relay, the LED at the output terminal will light up. Otherwise, it will turn off. If a periodic high and low level is supplied to the signal terminal, you can see the LED will cycle between on and off.

For Arduino:

Connect the signal terminal IN4、IN5 of 8-channel relay to digital port 3,2 of the SunFounder Arduino Mega2560 board, and connect an LED at the output terminal.(Pay attention to that there are only two submodules of the 8-channel relay are used in this example, but you can use the 8 submodules freely.)

8-channel relay——- Arduino Mega2560 IN4—————- 3 IN5—————- 2

Run the companion procedures 8_channel_relay_lowof the SunFounder Arduino ATMega2560 board,Please see the source code in Resources at the end of the page.Then you can see the LED cycle between on and off.

The actual figure is shown below:

For raspberry pi

Connect the signal terminal IN4、IN5 of 8-channel relay to port 17,18 of the Raspberry Pi, and connect an LED at the output terminal. (Pay attention to that there are only two submodules of the 8-channel relay are used in this example, but you can use the 8 submodules freely.)

Step 2: Run the Test_code_for_raspberry_pi ,Please see the source code in Resources at the end of the page. Then you can see the LED cycle between on and off.

The actual figure is shown below::

Resources

Code for Arduino :

8_channel_relay_low
Code for Raspberry Pi :

Test_code_for_raspberry_pi
Relay_Datasheet.pdf:

Источник

8 Channel 5V Relay Module

Contents

Introduction

This is a 8-channel LOW level trigger relay and it can be applied to Arduino and Raspberry Pi. Relays are suitable for driving high power electronic devices such as lights, electric fans and air condition. A relay can be used to control high voltages with a low voltage by connecting it to an MCU.

Schematic

Principle of relay

See the picture below: A is an electromagnet, B armature, C spring, D moving contact, and E fixed contacts. There are two fixed contacts, a normally closed one and a normally open one. When the coil is not energized, the normally open contact is the one that is off, while the normally closed one is the other that is on.

Add a certain voltage to the coil and some currents will pass through the coil thus generating the electromagnetic effect. So the armature overcomes the tension of the spring and is attracted to the core, thus closing the moving contact of the armature and the normally open contact (or you may say releasing the former and the normally closed contact). After the coil is de-energized, the electromagnetic force disappears and the armature moves back to the original position, releasing the moving contact and normally closed contact. The closing and releasing of the contacts results in power on and off of the circuit.

Features

  • Support control of 10A 30V DC and 10A 250V AC signals
  • 5V 8-Channel Relay interface board
  • LOW level trigger, equipped with indicator easy to recognize the working status
  • Each relay has NO and NC ports, easier to connect and control the connected devices
  • Selection of plastic material for high temperature and better chemical solution performance.
  • PCB size: 5.7 x 13.8 cm

Ports Description

  • VCC: Connected to positive supply voltage (supply power according to relay voltage)
  • GND: Connected to negative supply voltage
  • IN1: Signal(LOW Level) triggering terminal 1 of relay module
  • IN2: Signal(LOW Level) triggering terminal 2 of relay module
  • IN3: Signal(LOW Level) triggering terminal 3 of relay module
  • IN4: Signal(LOW Level) triggering terminal 4 of relay module
  • IN5: Signal(LOW Level) triggering terminal 5 of relay module
  • IN6: Signal(LOW Level) triggering terminal 6 of relay module
  • IN7: Signal(LOW Level) triggering terminal 7 of relay module
  • IN8: Signal(LOW Level) triggering terminal 8 of relay module

The meaning of high and low level:

INx stands for the contacts including IN1, IN2, IN3 and other pins in the following part.

Triggered at high level means a forward voltage exists between signal triggering terminal (INx) and negative supply voltage. It generally connects positive supply voltage and triggering terminal together. When triggering terminal has positive supply voltage or reaches triggering voltage, the relay will pull in.

While triggered at low level means the voltage between the signal triggering terminal (INx) and negative supply voltage is 0V, or the voltage at the triggering terminal is lower than positive supply voltage. If it lowers to a triggering voltage, the relay will pull in. It generally connects negative supply voltage and triggering terminal together.

Each submodular of the relay has one NC(nomalclose), one NO(nomalopen) and one COM(Common). So there are 8 NC, 8NO and 8 COM of the channel relay in total. NC stands for the normal close port contact and the state without power; No stands for the normal open port contact and the state with power. COM means the common port. You can choose NC port or NO port according to whether power or not.

Application

Testing Experiment

When a low level is supplied to signal terminal of the 8-channel relay, the LED at the output terminal will light up. Otherwise, it will turn off. If a periodic high and low level is supplied to the signal terminal, you can see the LED will cycle between on and off.

For Arduino:

Connect the signal terminal IN4、IN5 of 8-channel relay to digital port 3,2 of the SunFounder Arduino Mega2560 board, and connect an LED at the output terminal.(Pay attention to that there are only two submodules of the 8-channel relay are used in this example, but you can use the 8 submodules freely.)

8-channel relay——- Arduino Mega2560 IN4—————- 3 IN5—————- 2

Run the companion procedures 8_channel_relay_lowof the SunFounder Arduino ATMega2560 board,Please see the source code in Resources at the end of the page.Then you can see the LED cycle between on and off.

The actual figure is shown below:

For raspberry pi

Connect the signal terminal IN4、IN5 of 8-channel relay to port 17,18 of the Raspberry Pi, and connect an LED at the output terminal. (Pay attention to that there are only two submodules of the 8-channel relay are used in this example, but you can use the 8 submodules freely.)

Step 2: Run the Test_code_for_raspberry_pi ,Please see the source code in Resources at the end of the page. Then you can see the LED cycle between on and off.

The actual figure is shown below::

Resources

Code for Arduino :

8_channel_relay_low
Code for Raspberry Pi :

Test_code_for_raspberry_pi
Relay_Datasheet.pdf:

Источник

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