2 Pack 1‑Channel 5V Relay Module

High‑Reliability Switching for Arduino, ESP32 & Raspberry Pi

Compact 1‑channel 5V relay module for safe switching of higher‑voltage loads using low‑voltage control signals. Perfect for home automation, robotics, and DIY electronics projects.

1‑Channel 5V Relay Module Compatibility 

Works with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and most 3.3V–5V microcontroller platforms when wired through the signal pin and a common ground.

Key Features 

1 isolated relay channel for switching AC or DC loads
5V relay coil, compatible with most microcontrollers (Arduino, ESP32, Raspberry Pi, etc.)
Optocoupler‑driven input for improved noise immunity and protection
Onboard status LED to indicate relay state at a glance
Screw terminals for secure load connections and pin header for easy signal input
Compact PCB form factor for breadboards, prototyping, and permanent installs

Technical Specs

Operating voltage: 5V DC (relay coil)
Trigger voltage: typically 3.3–5V logic‑level compatible (depending on board variant)
Relay contact rating: commonly up to 10A at 250V AC or 30V DC (check specific markings on your relay)
Channel count: 1
Input interface: signal, VCC, GND pins
Indicators: power/trigger LED and relay status LED (varies by board)

Ideal Uses

Home automation: lights, fans, and appliance control
Robotics & mechatronics: motor or pump switching through an external supply
Smart‑home retrofits with ESP32 or Wi‑Fi microcontrollers
Lab test jigs and industrial control prototypes

What’s Included

1 × 1‑Channel 5V Relay Module

Safety Note

Always follow proper safety practices when switching mains AC. Ensure wiring is insulated, secure, and compliant with your local electrical regulations. If you’re not experienced with mains wiring, consult a qualified professional.