DIYables 2-channel Relay Module 5V for Arduino, ESP32, ESP8266, Raspberry Pi, 2 pieces
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Quick Overview
The DIYables 2-channel 5V relay module is a convenient way to control higher-power devices from a microcontroller. This listing includes a 2-pack, making it easy to prototype multiple projects or keep a spare for future builds.
Each board provides two relays with screw terminals for the input (control) side and the output (load) side, and supports both Normally Open (NO) and Normally Closed (NC) wiring. With optocoupler isolation and a selectable trigger mode (high-level or low-level) via jumper, the module is flexible for Arduino, ESP32, ESP8266, Raspberry Pi, and other 3.3V/5V controllers.
Use it for home automation, lighting control, pumps, fans, alarms, and other switching tasks where you want reliable relay isolation and clean wiring.
Key Features
- Dual 5V Relays — Two independent channels for switching two loads from a single board
- Screw Terminals — Easy and secure wiring on both input and output sides
- NO/NC Contacts — Normally Open and Normally Closed contacts for flexible control logic
- Optocoupler Isolation — Isolates control signal from load side for safer switching
- Selectable Trigger Mode — High-level or low-level trigger via jumper for logic compatibility
- 2-Pack Included — Two modules for multiple projects or backup
- Wide MCU Compatibility — Works with 3.3V and 5V microcontrollers
- Load Switching — Control AC/DC devices like lights, pumps, fans, alarms
- Tutorial Support — Comprehensive guides for all platforms
- Robust Design — Reliable relay switching for automation projects
SPECIFICATION
| Specification | Value |
|---|---|
| Module Type | Relay Module |
| Number of Channels | 2 (dual relay) |
| Relay Coil Voltage | 5V DC |
| Isolation | Optocoupler isolation |
| Trigger Modes | High-level / Low-level (jumper selectable) |
| Output Contacts | NO (Normally Open) / NC (Normally Closed) per channel |
| Output Wiring | Screw terminals for easy connection |
| Control Voltage | 3.3V - 5V logic |
| Max Switching Voltage | 250V AC / 30V DC (typical) |
| Max Switching Current | 10A (typical, verify for your application) |
| Included Quantity | 2 modules |
| Compatible Controllers | Arduino, ESP32, ESP8266, Raspberry Pi (and other 3.3V/5V MCUs) |
| Applications | Home automation, lighting control, pumps, fans, alarms, AC/DC load switching |
| Ideal For | IoT automation, smart home, relay control projects, load switching |
Tutorials
COMPATIBLE HARDWARE
- Arduino boards (all models) — Home automation and load control projects
- Arduino Uno R4 WiFi/Minima — WiFi-enabled relay control
- ESP32 development boards — IoT smart home automation
- ESP8266 boards (NodeMCU, Wemos D1) — WiFi relay control projects
- Arduino Nano ESP32 — Compact automation controllers
- Raspberry Pi (all models) — Advanced automation systems
- Raspberry Pi Pico — Microcontroller-based relay control
- AC/DC lights — Lighting control and automation
- Pumps and motors — Water pumps, fans, DC motors
- Heaters and coolers — Temperature control systems
- Alarms and sirens — Security system integration
- Home appliances — Smart home device control
- Industrial equipment — Automation and control systems
- Solenoid valves — Fluid control applications
- IoT projects — Remote control and automation
