Best Circuit Board Relay

AEDIKO 4pcs Relay Module DC 5V Relay Switch 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level Trigger

Fault-Tolerant Design: Fault Tolerant Design, Even if the Control Line is Broken, the Relay will not Operate.
All Interfaces of Relay can be Wired Out Through the Terminals Directly,Normally Open and Normally Closed.
Optocoupler Isolation:1 Channel Relay Board use Optocoupler Isolation that has Strong Driving Ability and Stable Performance ,The Isolation Circuit Prevent Damages to I / O Port by Relay Switch Current.
Jumper Design: The Relay Module has a Jumper That You Can Set Rather the Unit State Changes with High or Low Signal. Has Screw Terminals for Relay (NC,C,NO) and for Input.
Wide Application: DC 5V Relay Module Works Well with ARM /PIC /AVR /MCU/Raspberry/CNC Machine/ PS4 etc..

Raspberry Pi Expansion Board, Power Relay.
The RPi Relay Board gives your Pi the ability to control high voltage/high current devices, easily makes normal home appliances become intelligent..
Standard Raspberry Pi 40PIN GPIO extension header, Supports Raspberry Pi A+/B+/2B/3B/3B+/4B and later versions.
High quality relays, loads up to 5A 250V AC or 5A 30V DC.
Photo coupling isolation, prevent interference from high voltage circuit.

The timing relay of the closed cycle module has high design precision. It has a wide adjustable time range from 0.5s to 1000min. You can adjust the....
With start/stop function, the module enters the infinite loop mode after starting, and the relay works on and off according to the set time..
It can be used for reciprocating stroke control, or repeated power-off of equipment and product aging test..
Input (start button): Passive switch input, the green light will be on first after starting, and will stay in red after stopping. It is not necessary....
The circuit board can only be installed with 2 screws on the long side. The size of the circuit board is too small to fit 4 screws..

8 Channel DPDT Signal Relay Module Board, DC 5V Version..
FR-4 fiber glass PCB, dual copper layers. Dimensions: 72.5mm x 150mm ( L x W )..
RY5W-K high quality signal relays, LED indicator for each relay channel. Darlington transistors circuit driving relay, improve the reliability of action..
Pitch 3.81mm / 0.15" screw terminal block, wire range 26-16AWG, strip length 5mm / 0.2", Metric M2 slotted screw..
Datasheet: https://images-na.ssl-images-amazon.com/images/I/A1vg1+5HA8L.pdf.

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 ....

The esp8266 module is 11 digital input / output pins, all pins with interrupt / PWM / I2C / support 1 line (except D0).
1 analog input(3.2V max input). Micro USB connection.
WiFi internet development board 5V 1A switching power supply (switching power supply）onboard..
5V relay shield is a digital switch to control much higher voltages and currents than esp8266 mini microcontroller, controlled by the D1 , the relay will switch to allow current to flow or turn off, depending on wiring..
40 pin 0.1inch (2.54mm) male pin header connector PCB board pin strip electronic component, they are easy to be cut to any length if needed, you can cut or score with some electronic tool..
The pin header is an ideal connector for the PCB board and intergrated circuit, used widely in the computer and breadboard, compatible with raspberry pi or other electronic project..

ON-BOARD ESP-01 WIFI MODULE: The relay board is equipped with on-board ESP-01 WiFi module and high performance microprocessor STM8S103..
UART DEBUG INTERFACE: The relay has reserved UART debug interface and STM8 SWIM program download interface..
SMART CONFIG TECHNOLOGY: The module uses smart config technology to complete the account and password configuration on the APP ESP-01 WiFi module on the mobile phone, and configure the username and password memory functions..
ON-BOARD 5V RELAY: This relay module adopts On-board 5V,10A250V AC 10A30V DC relay, which can continuously pull 100,000 times with diode discharge protection and short response time..
WORKING STATUS INDICATOR: The module has board mode selection and real-time working status indicator..

This LG Relay Control Board is a genuine OEM (Original Equipment Manufacturer) part manufactured to exact specifications.
Replacement LG brand Range/Stove/Oven Relay Control Board operates relays to regulate the oven elements.
LG EBR74164805 Range/Stove/Oven Relay Control Board receives signals from the main oven control board.
High quality LG OEM EBR74164805 Range/Stove/Oven Relay Control Board is manufactured with premium materials for durability and exact fit, be sure to....
Life's Good when choosing Genuine LG OEM Factory parts for your LG appliances.

【Multifunction Timer Relay】Programmable delay modes to control the relay timings, widely used at smart home, industrial control, automatic irrigation, indoor ventilation, protection equipment etc..
【Load Range】Operating voltage: DC 6V - 30V, support micro USB 5V power supply. High level trigger: 3V - 24V. NO(Normally open) maximum load < AC 250V/10A, < DC 30V/10A. Timing range: 0.1s ~ 999mins (continuously adjustable)..
【Reverse Protection】Built-in a diode to provide protection against accidental reverse polarity for the circuits..
【Sleep Mode】If no operation within 5 minutes, the digital tube of the relay board will turn off automatically. Pressing any button can wake it up..
【Parameter Setting】OP(conduction time) / CL(off time) / LOP(circuit times) can be set individually, and the parameters are mutually independent. All parameters are permanently saved once set. The functions and parameters can be reviewed or changed at a later time..