Best Board Relay

Weewooday 15 Pieces 5V Relay Module 1- Channel Relay Control Boards with Optocoupler Isolation High and Low Level Trigger Expansion Board

Relay module: this relay board supports high and low level trigger and can be controlled by any 5V digital output of the microcontroller.
Parameter details: maximum load of normally open interface: AC 250v/ 10A, DC 30v/ 10A, trigger current is 5mA.
The 5v relay control board adopts SMD optocoupler isolation, which has strong driving ability and stable performance.
Practical design: with fault-tolerant design, the relay module will not operate even if the control line is disconnected.
All interfaces can be provided through directly connected terminal s since the humanized interface design, it is very convenient to use.
High compatibility: the relay module can be directly controlled by the 5V logic signal provided by the microcontroller, suitable for 8051, Raspberry Pi, PIC, DSP, ARM, AVR, MSP430, TTL logic, etc..
Wide application: this 5V relay board can be applied with Raspberry/ CNC machine/ ARM/ PIC/ AVR/ MCU/ PS4 and more.

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AITRIP 8 Pack 3V 1 Channel Relay Power Switch Module with Optocoupler Opto Isolation High Level Trigger for IOT ESP8266 Development Board

【30VDC 250VAC Load】 Equiped with high-current relay, AC250V 10A.
DC30V 10A, each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground..
【High Level Trigger】The relay module is triggered by high level signal, which can be input from microcontroller IO..
【 3V/3.3V power relay module】- This Relay Board provides a single relay that can be controlled by any 3V/3.3V digital input from your microcontroller IO..
【Wide Application】- These 3v relay board works well with ARM /PIC /AVR /MCU/Raspberry/CNC machine/ PS4/3.3V /NodeMCU/ ESP8266 module etc..
【Long Life】 - Fast response time less than 20ms and long lifetime up to 100,000 times snap action with diode freewheel protection..

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5v Relay Board Relay Module 1 Channel Opto-Isolated High or Low Level Trigger

【1 Channel Relay Module】- This Relay Board provides a single relay that can be controlled by any 5V digital output from your microcontroller..
【Main Specification】- Peak Load of NO Connector: AC125~250V/10A, DC28~30V/10A.
【Adopted SMD Optocoupler Isolation】- The isolation circuit prevent damages to I / O port by relay switch current..
【Wide Application】- These 5v relay board works well with ARM /PIC /AVR /MCU/Raspberry/CNC machine/ PS4 etc..
【Humanization Design On Interfaces】- All interfaces can be directly wired out through the terminals..

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Youngneer 5v Relay Board Raspberry Arduino Relay Module 1 Channel Opto-Isolated High or Low Level Trigger

【1 Channel Relay Module】- This Relay Board provides a single relay that can be controlled by any 5V digital output from your microcontroller..
【Main Specification】- Peak Load of NO Connector: AC125~250V/10A, DC28~30V/10A.
【Adopted SMD Optocoupler Isolation】- The isolation circuit prevent damages to I / O port by relay switch current..
【Wide Application】- These 5v relay board works well with Arduino/ ARM /PIC /AVR /MCU/Raspberry/CNC machine/ PS4 etc..
【Humanization Design On Interfaces】- All interfaces can be directly wired out through the terminals..

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ELEGOO 8 Channel DC 5V Relay Module with Optocoupler Compatible with Arduino UNO R3 MEGA 1280 DSP ARM PIC AVR STM32 Raspberry Pi

5V 8-Channel Relay interface board, each one needs 70mA Driver Current.
Equiped with high-current relay, AC250V 10A.
Each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground..
With power indicator,8-way road has a status indicator. With a relay coil to absorb the diode protection..
Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic).
The 8 channels are optically isolated, safe, reliable, anti-interference. Widely used for all MCU control, industrial sector, PLC control, smart home control。For a complete data sheet for this relay board, please download it from: http://dwz.win/UhW.

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3v Relay Board Raspberry Pi Arduino Relay Module 1 Channel Opto-Isolate High Level Trigger for IOT ESP8266 Microcontrollers Development Board

【1 Channel Relay Module】- This Relay Board provides a single relay that can be controlled by any 3V/3.3V digital input from your microcontroller IO..
【Main Specification】- The 3v Relay 1 Channel power switch module compatible with 10A 250VAC and 10A 30VDC load.4pcs * 2.5 mm Fixed Bolt Hole..
【Adopted Optocoupler Isolation】- 3V/3.3V power relay module supports photocoupler isolation control and dual power supply input ensure high anti-interference ability. Fast response time less than 20ms and long life time up to 100,000 times snap action with diode freewheel protection..
【Jumper Caps】You can select whether the relay and the signal use the same power supply or not by removing the jumper caps on the pins. And It is better to share the same power supply, because that is more convenient for using..
【Wide Application】- These 3v relay board works well with Arduino/ ARM /PIC /AVR /MCU/Raspberry/CNC machine/ PS4/3.3V /NodeMCU/IOT/ ESP8266 module etc..

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SainSmart USB 4 Channel Relay Automation (5V)

NOYITO 2-Channel Micro USB Relay Module is equipped with a stable USB to serial port chip and a microcontroller. It can use the serial port debugging software to send serial commands on the computer to control the opening and closing of the 2-channel relay..
Onboard high performance microcontroller chip, CH340 USB control chip.With power LED indicator and relay status LED.On-board 2-channel 5V, 10A/250VAC, 10A/30VDC relay, long relay life, can work 100,000 times continuously..
Module with overcurrent protection and relay diode freewheel protection..
NOYITO 8-Channel Micro USB Relay Module ASIN：B09RGTSHHW.
NOYITO 4-Channel Micro USB Relay Module ASIN：B09RGVQXXT.

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MakerFocus Raspberry Pi Expansion Board 4 Channel Relay Board Module Power Relay Module for Raspberry Pi 4B/3 Model B+/Raspberry Pi 3/2 Model B (No Programming Required/Programmable)

The product operation guide can be obtained in the product guide and document. This Raspberry Pi expansion board supports Raspberry P.
The Relay Board gives your Raspberry Pi board the ability to control high voltage/high current devices, and easily makes normal home appliances become intelligent. Can be accessed programmatically or directly by shell. Up to 4 layers can be stacked..
Switch the I2C address of the device through the DIP switch on the circuit board to ensure that the four-layer module gets different addresses, thus avoiding the problem of address duplication..
The 4 Channel Relay uses high-quality relay modules combined with the most popular microcontroller technology to communicate with the Raspberry Pi. You can use mulitiple relay modules stacked together to add many channels.
The 4 Channel module is very fast, easy to install, and supports multi-language development, making it ideal for smart home projects.

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Notebook Three Bullet Holes In Playing Card Ace Of Hearts Journal for Writing College Ruled Size 6 x 9 110 Pages

Item 77119 (replaces the old 74618 as of September 10, 2013).
What is included: NewUpgraded IQ 2020 Heater Relay Board w/ Jumpers & Shortened Screws for the front cover of the IQ2020.
Description: New(New as of 9-10-2013) This IQ2020 Heater Relay Circuit Board is the newest revision for the 2001-2009.5 IQ2020 Control Box. It's....
Symptoms this part has failed: No power going to the heater even though the red HTR ON L.E.D. light is lit inside the IQ2020 control box. The heater....
Note: In older control boxes, you may encounter that a chip on this new heater relay board prevents the metal guard from seating properly and it may....

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Wireless Rf Remote Control Switch, Safe Connection Receiver Relay Switch 220v 433mhz(1 CH)

✔Easy to set up and easy to use. The relays are very simple to set up and use. Specifically designed to control a variety of electrical equipment via wireless signals..
✔Small size, stable and reliable performance, high receiving sensitivity. The relay is designed to be small and simple, does not take up space, and powerful performance can be used for a long time..
✔The relay supports fixed code and learning code, and supports 1-channel or 2-channel receiver relay switches, which fully meet the needs of different users..
✔Excellent security. The circuit board of the relay is safely packaged, the circuit board is exquisite, and the wiring is safe. Safety protection measures are perfected to protect your safety..
✔A wide range of applications. From simple home remote control to door, window, lifting equipment, access control, up and down controller, alarm system industrial control, security system and other automatic controllers can be used in various fields..

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ALMOCN 6Pcs DC 5V 1 Channel Relay Module With Optocoupler Isolation Support High or Low Level Trigger

The Relay Board Maximum load: AC 250V/10A, DC 30V/10A.
Using SMD optocoupler isolation, strong driving capability, stable performance..
Can be set high or low level trigger with jumper cap, to meet the demand of more trigger applications..
Fault-tolerant design, even if the control line is broken, the relay will not move..
Wide Application,The relay board works well with ARM /PIC /AVR /MCU/Raspberry/CNC machine/ PS4 etc..

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AOICRIE 12V 16-Channel Relay Interface Board Module Optocoupler LED LM2576 Power for Arduino DIY Kit PiC ARM AVR

★12V 16-Channel Relay interface board, and each one needs 15-20mA Driver Current.
★Equipped with high-current relay, AC250V 10A.
★The control signal voltage range: the trigger signal is low 0-2V.
★Standard interface that can be controlled directly by microcontroller (for Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP433, TTL logic).
★DC 12V 16 Channel Relay Module Interface Board With Optocoupler Protection LM2576 Power for Arduino DIY Kit.

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Edwards Signaling 7005-G5 Door Annunciator

...the input is shorted to GND, an alarm will be triggered and an alarm message will be sent..
☆☆One relay output with call mode and the other relay output with SMS control can be easily programmed with mobile phone or PC software. SMS can be used for digital programming quickly and conveniently through SMS or on‑board quick teach button..
☆☆Support free control mode or security authorization number control mode, support custom commands, easy to understand. Optional password to keep the system in safe operation mode, support remote password operation and password change..
☆☆Applications include remote control of heating of holiday houses, lighting, engine preheaters, aircraft engine heaters, irrigation systems, well pumps, pumping stations, cabin heaters, resetting of remote servers, arming and disarming security systems, and door Access control and garage door..

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