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Showing 21-40 of 100 products
ESP8266 ESP-01S Relay
A WiFi-controlled relay module based on the AI-Thinker ESP-01S (ESP8266). It lets you switch AC or DC loads remotely over WiFi, making it a simple building block for smart home automation, IoT switching, and remote control projects. The module comes pre-loaded with demo firmware — supply 5V DC p...
5V 1-Channel Relay Board Module
The 5V 1-Channel Relay Board Module provides a simple way to switch high-voltage loads from your Arduino, Raspberry Pi, or other microcontroller project. Controlled via a 5–12V TTL signal, this relay can switch loads up to 250V AC, making it suitable for controlling lights, fans, pumps, and other...
5V 1 Channel H/L Level Trigger Optocoupler Relay Module For Arduino
The 5V 1-Channel Optocoupler Relay Module provides safe, isolated switching of high-voltage loads from a microcontroller. An onboard SMD optocoupler isolates the control circuit from the relay, protecting your Arduino, Raspberry Pi, or other development board from voltage spikes. A jumper settin...
12V Precision Temperature Controller with 3 digit display 10Amp Relay
This compact 12V temperature controller features a 3-digit LED display for setting and monitoring temperature, along with a built-in 10A relay for switching heating or cooling loads. It uses an NTC thermistor probe (included) for measurement across a wide range of −50 to 110°C. The relay operate...
Relay Module with cycle delay timing switch self-locking and more
This versatile relay module is a powerhouse of timing functions, ideal for projects requiring precise control over relay activation and deactivation. Featuring adjustable parameters and 18 distinct modes, it provides exceptional flexibility for automation tasks. Key Features Customisable Parame...
IO Unit Kit ( I/O Proto Relay 3.96 RS485 DAC ADC)
Including 7 Different Units: Ext.IO, Proto, Relay, 3.96, RS485, DAC, ADC
Mini 3A Relay Unit
Description RELAY, as its namesake, is a M5Unit that implenments a Relay functions. Relay can be used as an electrically operated switch, uses an electromagnet to mechanically operate a switch,to where it is necessary to control a large power load circuit by a separate low-power signal, like a...
Adafruit STEMMA Non-Latching Mini Relay
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The Adafruit STEMMA Non-Latching Mini Relay lets you switch lamps, fans, solenoids, and other small appliances (up to 250 VAC/DC) using any 3V or 5V microcontroller — no soldering, flyback diodes, or level shifting required. Just connect via the JST-PH STEMMA connector and toggle the signal pin h...
OCTOPUS 1-Channel Relay
OCTOPUS 1-Channel Relay is a single relay electronic brick: Note: Module 5V power supply: Never use power supply more than 5V, which may cause damage to the module. Features: Relay Power Supply Voltage:<V Relay drive level: With opto-isolation circuit, can completely isolate the relay controll...
1 Channel 5V Relay Module Arduino Compatible BK008
A single-channel 5 V relay module that allows a microcontroller to switch high-voltage electrical devices up to 250 VAC or 110 VDC. Controlled via a standard TTL-level digital IO pin, it works with Arduino and other popular microcontrollers. The module uses an SRD relay with optocoupler isolatio...
8 Channel 12V Relay Module BK_RL8_01
An 8-channel relay module compatible with Arduino, Raspberry Pi, and other MCU boards (PIC, ARM, MSP430). Each relay channel has an LED indicator showing its output state, making it easy to monitor which relays are active. Key Features 8-Channel Relay – Independent control of 8 circuits LED I...
8 Channel 5V Relay Module BK_RL8_01
An 8-channel relay module operating at 5V, compatible with Arduino, Raspberry Pi, and other MCU boards (PIC, ARM, MSP430). Each relay channel has an LED indicator showing its output state, making it easy to monitor which relays are active. Key Features 8-Channel Relay – Independent control of ...
2 Channel 12V Relay Module
The 2-Channel 12V Relay Module allows you to control two high-power devices independently using low-voltage signals from a microcontroller such as Arduino. Each channel features an optocoupler-isolated relay with normally open (NO) and normally closed (NC) terminals for flexible switching configu...
1 Channel Relay 3V Relay Module for Micro:bit
A single-channel 3 V relay module from the ElecFreaks OCTOPUS series, designed for use with the BBC micro:bit. It uses a high-quality HUIKE relay capable of switching loads up to 30 A, making it suitable for controlling home appliances and other high-current devices. The module runs on 3 V power...
Four Channel Relay for Micro: bit
Do you still looking for the relay module for the Micro: bit? Here we had combined the relay with the Micro: bit and you can use Micro: bit to control 4 relays at the same time. Features Apply to Micro: bit. Four channel relay. Specifications Input voltage: 5v Load voltage and current:...
ESP8266 ESP-01/ESP-01S Relay WiFi Smart Control Module for Arduino
A WiFi-controlled relay module designed for ESP-01 or ESP-01S modules (based on the ESP8266). The relay is controlled via GPIO0 with a low-level trigger, allowing you to switch mains-powered devices on and off wirelessly from a phone or any WiFi-connected device. APP and LUA source code are provi...
Gravity: Easy Relay Module
The traditional relay module has complicated wiring and is not friendly to beginners or students. The simple switch module simplifies the wiring method for connecting traditional relays. The input end is equipped with an adapter, which can be compatible with most power sources, battery boxes, DC ...
ESP8266 10A 220V Network Relay WIFI Module Input DC 7V~30V
We ‘d like to see something help us to have a nice home automation application, or develop some smart home products, this ESP8266 10A 220V Network Relay WIFI Module will take charge of your electrical equipment by WIFI control.In addition to the remote control of this relay has the advantage, it ...
SparkFun Qwiic Dual Solid State Relay
The SparkFun Qwiic Dual Solid State Relay is a power delivery board that allows users to switch two AC loads from a low power microcontroller using the SparkFun Qwiic connect system. The board features two 25A/250VAC solid state relays that utilize the Zero Cross Trigger method so you can toggle ...
SRD-5VDC-SL-C Relay T73-5V 5pin
Mini 5V DC Power Relay SRD-5VDC-SL-C 5 Pin PCB TypeFeature:Selection of plastic material for high temperature and better chemical solution performanceSpecification:Coil voltage: DC 5VCoil resistance: 70Ω ~ 80ΩContact resistance: 100Ω MaxOperation time: 10msec MaxRelease time: 5msec MaxAmbient tem...
