Best Board Relay

MHCOZY 1 Channel USB 5V AC/DC 7-32V Smart WiFi Wireless Relay Switch Module,Tuya Smart Life app Remote Control,Work with Alexa Google Home (1)

  • Bluetooth WIFI Relay,Smart life tuya app wifi remote& 433Mhz RF&Bluetooth remote 4 Channel Smart Relay.Easy to configure to Smart life app,working voltage is DC 5V or AC/DC 7-32 V.Once configured with Smart life app,you can use bluetooth remote or 433mhz RF control when lose WIFI connection,support fixed code 433Mhz RF.
  • Widely Usage,MHCOZY 4 channel WIFI Relay,with 3 working mode,self-lock Momentary and Interlock Switch,you can set mode by channel,adjust momentary time from 2 second to 1 minute in Smart life app.DIY WIFI Garage Door Opener,Automate chicken hoop door shutter blind curtain.
  • Schedule and Share with Family,you can set countdown sunrise Repeat schedule,and easy share phone remote to with your family..
  • Simple ABS Shell,can be fixed to electronic box,extra external interface on board.
  • Voice control,One key to link with Alexa Google assistant Smartthings Siri,use your voice command to control your Garage light when busy.
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HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger

  • This is a simple and practical passive relay module, which is very convenient to use. It can support both Normally Open and Normally Close..
  • Input control signal: AC/DC 5V, AC/DC 12V, AC/DC24V, AC/DC48V, AC 115V, AC 230V Selectable..
  • Output switch DPST 1NO 1NC(Double Pole Single Throw, 1x Normally Open and 1x Normally Close ), rated current 8A/250VAC or 8A/30VDC (one switch)..
  • Compact ABS plastic case and wires connect for easy mount. Two screw mounting holes are convenient for you to fix it on the wall or wooden board. Of course, you can also choose not to lock the screw..
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GeeekPi Raspberry Pi Pico Breakout HAT Board, Raspberry Pi GPIO Expansion Board Breakout HAT Module for Raspberry Pi Pico, Support Raspberry Pi HAT Board with 40Pin Pin Header

  • Application: This breakout HAT board, which is specially customized for Raspberry Pi Pico..
  • Convenient: Solve the problem that the Raspberry Pi Pico silk screen is covered, and providing pin header pins, which is convenient for users to build their own DIY circuits..
  • Features: Support Raspberry Pi HAT board with 40Pin Pin Header.
  • For example: GeeekPi DockerPi series HAT board, 4-channel relay HAT board, SensorHub board, etc. It Provides a good bearing platform.
  • Package Includes: 1 x Breakout HAT Board For Raspberry Pi Pico.
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KNACRO 1-Channel 30A High Current 5V Contactor Relay Switch Power Switch DC Power Switching Control Board Module Electrical Relay switches for Cooler Heater Refit Water Heater Control (DC 5V)

  • 30A High Current 12V Contactor relay Switch DC power Switching Control Board.
  • Using high-quality ultra-small optocoupler, anti-interference ability, stable performance..
  • Using 9.5mm black fence terminal, standard 30A terminal, stable and solid, reliable quality..
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MakerHawk Time Delay Relay, 12V 5V USB Relay Module 6-30V Delay Controller Board Delay-Off Cycle Timer Control Switch with LCD Display Support Micro USB 5V Power Supply

  • Timer delay relay module operating voltage range is DC 6-30V, support micro USB 5.0 V power supply.
  • support high level trigger 3.0V-34V and low level trigger 0V-0.2V.
  • timing range is 0.01s9999mins, can be continuously adjustable. Powerful and easy to use. Indication link: please get it from the product description..
  • LCD Display: The relay board is desiged with LCD display, can clearly and directly show the current mode and parameters..
  • Sleep Mode: Without any operation within 5 minutes, the LCD backlight of the 12v timer relay will close automatically. Any button can wake up..
  • Independent Parameters: OP/CL/LOP parameters can be modified and saved, and they are individual. Auto Save: All setting parameters are automatically saved by power-fail..
  • Automatically hibernation function/ Low power function: In the running interface, long press STOP to open or close automatically sleep function. (L-P selects ON to start the hibernation function, and OFF turns off the hibernation function).
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Ingcool Compatible with Raspberry Pi Expansion Board Power Relay Module Kits for Raspberry Pi 4B/3B+/3B/2B/ A+/B+ 5A 250V AC/ 5A 30V DV

  • Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards.
  • The RPi Relay Board gives your Pi the ability to control high voltage/high current devices, easily makes normal home appliances become intelligent..
  • High quality relays, loads up to 5A 250V AC or 5A 30V DC.Photo coupling isolation, prevent interference from high voltage circuit.
  • Relay control jumper, allows to control the relays by custom pins other than the default pins.Onboard LEDs for indicating relays status.
  • Comes with development resources, including examples in wiringPi, WebioPi, shell, python, and bcm2835.
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SparkFun Qwiic Quad Solid State Relay Kit - Attach 4 Solid State relays to a Single PCB - Control Some serious Power All from The Easy-to-use Qwiic Connect System - configurable I2C

  • This kit allows you to assemble up to four of these solid state relays on a single PCB and control them all via I2C from your favorite microcontroller..
  • The Quad Solid State Relay Kit comes with four solid state relays rated up to 40A at voltages between 28-380 VAC so you can switch some serious power with this board all from a single Qwiic connector attached to a low-powered microcontroller..
  • Features: Operating Voltage: 2.5-3.6V (3.3V recommended). I2C Address: 0x08 (Default), 0x09 (Alternate via jumper). Max Current (Through Relay): 40A (24-380VAC). Zero Cross Trigger. Normally Open Circuit Only.
  • Includes: 1x Qwiic Quad Solid State PCB. 4x Solid State Relay - 40A (3-32V DC Input). 8x 4-40 Hex Nut. 8x 3/8in. Phillips Machine Screw - 4-40 Thread. Hook-up Wire 8" - 22 AWG (Red). Hook-up Wire 8" - 22 AWG (Black).
  • Assembly required. Tools are not included. You will need a screwdriver and wire clippers/strippers..
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CW QRP Shortwave Radio Kit - CW Transceiver Shortwave Radio Kit

  • The patch device of the main control board has been pre welded and connected to the base plate in the form of stamp hole. The single chip microcomputer adopts pic16f1938, builtin PLL local oscillator, supports crystal oscillator calibration setting, and has its own frequency indication circuit (Seven Segment LED nixie tube is used, the display unit is 1kHz, the photo has color difference, and the actual color is red. The working frequency covers 7.000-7.100mhz, 1kHz or 100Hz steps )..
  • Ta2003 mixer is used for reception, and crystal filter is used for if. After ta2003 multiplication detection, the sound size is adjusted by digital potentiometer and sent to audio active filter circuit. Finally, LM386 drives speaker, and if frequency supports calibration setting..
  • Use 3 bs170 parallel outputs, class E amplification, 12V power supply, output power 5W! Relay switching is used for transceiver, with the function of transmitting delay adjustment to avoid frequent relay switching and improve the isolation of transceiver channel..
  • It has the function of automatically sending call signs, which is very convenient to use. The MCU uses the original code of our store, which can adjust the code speed, sidetone frequency and sidetone size. It can input the call sign by ....
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DaierTek 12V Fuse and Relay Box 6 Slots Relay Block 6 Slots ATC/ATO Fuse and Relay Block with Relay Universal Waterproof Fuse and Relay Box Kit for Automotive Car Truck Marine Boat

  • Large Capacity Relay Holder – This relay box is 6 slots relay panel design, which includes 5 slots for 5 pin Bosch style relays, 1 slot for RTT7121 4 pin relay..
  • ATC/ATO Fuse Relay Box – This fuse block with relay is also 6 slots relay holder design for ATC/ATO fuses, which makes the fuse relay become safer when use..
  • Suitable Terminals – This 12v relay box will also come with terminals for relays and fuses, which will enables you to install and use the fuse and relay box at once..
  • Top & Bottom Cover – This relay box 12v automotive will come with a top cover and a bottom cover, which makes the relay fuse box become a waterproof relay box..
  • What you get – 1 x Fuse Relay Block with Top and Bottom Cover, 5 x Bosch Style 5 Pin Relay, 1 x RTT7121 4 pin relay, 16 x Blade Fuses(4 x 10A, 4 x 20A, 4 x 25A, 4 x 30A), 41 x Metallic Terminals, 1 Year Warranty. Feel free to contact us if confused..
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Electronic Specialties 191 Relay Buddy Pro Test Kit

  • Kit includes Relay Buddy tester, 5 new relay adapters and blow mold case.
  • Relay Buddy is a quick go/no go tester for the most common automotive relays.
  • With the included adapters, Relay Buddy now tests 5 different relay types and also tests shielded relays.
  • Relay Buddy will fail the relay and light the red LED if any of the test cycle proves unsuccessful during the test session.
  • Settable to 4 and 5-pin relay and uses vehicle's 12 volts battery for power.
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