All Products

SKU: WS-30795 · MPN: 30795

The Waveshare Modbus POE ETH Relay 16CH is an industrial-grade 16-channel relay module controlled over Ethernet using Modbus RTU or Modbus TCP protocol. It features dual Ethernet ports for cascading, Power over Ethernet (PoE) support to IEEE 802.3af, and optocoupler-isolated relay drivers with fl...

SKU: DF-DFR0996

A Magnetic latching relay is a new type of relay.  It features low power dissipation and noiseless.  Unlike other non-latching relay, the latching relay needs two digital pulse signal to switch ON/OFF state. This DFRobot Gravity: magnetic latching relay is compatible with most...

SKU: WS-30460 · MPN: 30460

The 8-Channel Modbus RTU Latching Relay Module (C) is an industrial-grade relay controller with RS485 communication, designed for reliable automation in demanding environments. The latching relays retain their state after power loss, ensuring consistent operation without manual reset. Communicat...

SKU: WS-26517

The Industrial Modbus RTU 8-Channel Relay Module (D) is a reliable RS485-controlled relay module with 8 digital inputs. Designed for industrial applications, it supports the Modbus RTU protocol and includes multiple isolation protections like power, magnetic, and TVS diode isolation. It features ...

SKU: EC-ESP11002R

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...

SKU: WS-15423

The RPi Relay Board (B) is an 8-channel relay expansion board for Raspberry Pi, giving your Pi the ability to switch high-voltage loads such as home appliances, lighting, motors, and other AC/DC devices. Each relay handles up to 5A at 250V AC or 30V DC, with photo-coupled isolation to protect the...

SKU: LB-LS1773-12V

An 8-channel 12V relay module with USB-A interface for computer-based control. Uses the ULN2803 relay driver chip and genuine Songle relays for stable operation. Each relay is rated for 10A switching. Features both a power socket and screw terminals for flexible power input. Once powered externa...

SKU: EF-EF03012

A compact 16-channel relay module using HUIKE mini-relays, providing optocoupler-isolated control of up to 16 independent circuits. Despite having 16 channels, the board is close in size to a standard 8-channel relay module thanks to the mini-relay form factor. Each channel has a dedicated LED i...

SKU: SB-PICO-RELAY

The Pico 3V Relay HAT is a two-channel relay board designed for the Raspberry Pi Pico. It stacks directly onto the Pico via a female pin header for a clean, compact connection. Operating at 3.3V, it allows the Pico to switch higher-voltage AC and DC loads without additional driver circuitry. Key...

SKU: PH-103396

The Relay 4 Zero provides a solution for controlling low and medium current/voltage devices with your Raspberry Pi Zero (or any 40-pin Raspberry Pi).It's a nice solution for controlling devices that can't be directly controlled by the Raspberry Pi's digital I/Os (GPIO). The standardised...

SKU: LB-LR0046

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...

SKU: EF-EF03004

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...

SKU: EF-EF03003

The 2-Channel 5V Relay Module allows you to control two high-power devices independently using 5V TTL signals from a microcontroller such as Arduino, PIC, ARM, or MSP430. Each channel features a relay with screw terminals and an LED indicator showing the relay state. The compact modular design m...

SKU: LB-LS0205

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...

SKU: EC-DTS04012R

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:...

SKU: EF-EF04086

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...

SKU: DF-FIT0827

The module adopts the standard Modbus RTU protocol, the communication interface supports RS485 or RS232 and supports communication baud rates of 2400, 4800, 9600, 19200, 38400 (default 9600). Each relay output is independent and can be connected to different load devices, such as 220V electric li...

SKU: M5-U023

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...

SKU: EF-EF03009

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 ...

SKU: DF-DFR0144

This 4-channel relay shield from DFRobot plugs directly onto an Arduino Uno or compatible board, providing opto-isolated relay switching for controlling high-power devices such as lamps, water pumps, and motors. Each relay has its own test button and LED status indicator. The shield features a b...