• Relay Module V3.1 Arduino Compatible - DFRobot DFR0017 image 1
  • Relay Module V3.1 Arduino Compatible - DFRobot DFR0017 image 2
  • Relay Module V3.1 Arduino Compatible - DFRobot DFR0017 image 3
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Simple Load Switching for Arduino, ESP32, and Automation Builds

The DFRobot Relay Module V3.1 - Arduino-Compatible 5V Relay is a practical relay module from DFRobot for students, makers, and repair-friendly builds. It fits well in projects that need switching external loads, while keeping setup straightforward for testing and prototype work.

Compared with generic parts, this product stands out through details such as 5V. That makes it a solid choice for Arduino, ESP32, Raspberry Pi, robotics, motion-control, and workshop projects where matching the right part from the start saves time.

Important: Always match the electrical rating, size, and control method of this part with the rest of your setup before full-power testing.

Why you'll love it

  • 5V: gives you a quick spec reference before choosing the right part
  • Simple load switching: adds useful value when choosing parts for a build
  • Controller-friendly trigger input: adds useful value when choosing parts for a build
  • Useful in automation projects: adds useful value when choosing parts for a build
  • Easy to add to timed or sensor-based control: adds useful value when choosing parts for a build

What you can build

This product is a good fit for home automation, pumps, lights, fans, and controller-triggered switching tasks. It works especially well in student projects, quick repairs, and prototype builds where part availability, straightforward hookup, and predictable results matter.

Starter bundles

Most users pair this with Arduino, ESP32, or Raspberry Pi, along with jumper wires and a proper power source for the target load or sensor.

Recommended add-ons

Useful add-ons include terminal blocks, controller boards, and safe power wiring for your switched load. You can also compare it with DFRobot Gravity 10A Digital Relay Module - 250VAC Switch, 5V 10A 1-Channel Relay Module with Optocoupler (NO/NC).

Comparison table

Compared Product Best For Key Difference Direct Link
DFRobot Gravity 10A Digital Relay Module - 250VAC Switch switching external loads 10A, 250VAC View product
5V 10A 1-Channel Relay Module with Optocoupler (NO/NC) switching external loads 5V, 10A View product
Controllable Four Outlet Power Relay Module switching external loads ble View product

Technical specifications

Product DFRobot Relay Module V3.1 - Arduino-Compatible 5V Relay
Brand DFRobot
Product Type Relay Module
Store Type Relay Module
Primary SKU DFR0017
Key Specs 5V
Product URL https://circuit.rocks/products/relay-module-v3-1-arduino-compatible

Pinout & power notes

The low-voltage control side connects to your controller, while the load side uses COM, NO, and NC terminals. Keep the switched load wiring separate from the signal side.

What’s in the box

1 × DFRobot Relay Module V3.1 - Arduino-Compatible 5V Relay

Frequently Asked Questions

Can this work with Arduino or similar boards? Yes, as long as the voltage, control method, and wiring match your controller and power supply.
Should I power it directly from a controller pin? For small signal-only modules that may be fine, but motors, pumps, solenoids, and relays should use a proper driver or external supply.
Is this good for student and prototype builds? Yes. It fits well in testing, learning, and proof-of-concept projects when matched with the right support parts.
What do COM, NO, and NC mean? They are the switched load terminals. COM is common, NO is normally open, and NC is normally closed.

DFRobot Relay Module V3.1 - Arduino-Compatible 5V Relay

DFRobot Relay Module V3.1 - Arduino-Compatible 5V Relay

Low stock: 1 left

Product Code

DFR0017

₱ 273.00
₱ 273.00
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