---
product_id: 472780685
title: "3pcs Relay Module for Arduino, ESP32, ESP8266, Raspberry Pi, 1 Channel, 5V, High/Low Level Trigger"
brand: "diyables"
price: "197 kr"
currency: DKK
in_stock: true
reviews_count: 5
category: "Di Yables"
url: https://www.desertcart.dk/products/472780685-3pcs-relay-module-for-arduino-esp32-esp8266-raspberry-pi-1
store_origin: DK
region: Denmark
---

# 5V operating voltage High/Low level trigger selectable Optocoupler isolation for signal protection 3pcs Relay Module for Arduino, ESP32, ESP8266, Raspberry Pi, 1 Channel, 5V, High/Low Level Trigger

**Brand:** diyables
**Price:** 197 kr
**Availability:** ✅ In Stock

## Summary

> 🔌 Empower your smart projects with precision switching—because control is everything.

## Quick Answers

- **What is this?** 3pcs Relay Module for Arduino, ESP32, ESP8266, Raspberry Pi, 1 Channel, 5V, High/Low Level Trigger by diyables
- **How much does it cost?** 197 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/472780685-3pcs-relay-module-for-arduino-esp32-esp8266-raspberry-pi-1)

## Best For

- diyables enthusiasts

## Why This Product

- Trusted diyables brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Triple Pack Power:** Three independent relay modules in one set—perfect for multi-device projects or backup peace of mind.
- • **Secure & Easy Wiring:** Terminal blocks with screw-down connectors make installation quick, reliable, and professional-grade.
- • **Clear Status Indicators:** Dual LEDs provide instant visual feedback on power and relay status—never guess your setup again.
- • **Robust Signal Isolation:** Optocoupler isolation ensures your microcontroller stays safe from voltage spikes and noise.
- • **Versatile Trigger Modes:** Switch seamlessly between high and low-level triggers with a simple jumper for ultimate control flexibility.

## Overview

This 3-piece 5V single-channel relay module set is compatible with Arduino, ESP32, ESP8266, Raspberry Pi, and other 3.3V-5V microcontrollers. Featuring selectable high/low-level triggers, optocoupler isolation for enhanced safety, and terminal blocks for secure wiring, it supports up to 10A load at AC 250V or DC 30V. Dual LED indicators provide real-time status, making it an essential, reliable component for professional-grade IoT and automation projects.

## Description

This is 3 pieces of 5V 1-channel relay modules that work with Arduino, ESP32, ESP8266, Raspberry Pi, or any 5V or 3.3V microcontroller. A single package includes 3 pieces of relay modules. SPECIFICATION: - Normally open and normally closed. - High-level trigger or low-Level trigger selection by a jumper. - Optocoupler isolation. - Terminal blocks for both input and output. - Two LED indicators: power (green LED), the relay status (red LED). - Fault-tolerant design, even if the control line is broken, the relay will not operate. - Operating voltage (power): 5V. - Trigger voltage: 3.3V to 5V. - Trigger current: 5mA. - Maximum load: AC 250V/10A, DC 30V/10A - Dimension: 50mm x 26mm x 18.5mm (L x W x H). INPUT INTERFACE: - DC+ : Connect the positive pole of the 5V power supply. - DC- : Connected the negative pole of the 5V power supply. - IN: Signal trigger input (3.3V to 5V, high or low level signal selected via a jumper). OUTPUT INTERFACE: - NO: The normally open interface. - NC: The normally closed interface. - COM: The common interface for both normally open and normally closed. High/low level trigger selection jumper: - If the jumper is placed between COM and L, the relay uses LOW level trigger. - If the jumper is placed between COM and H, the relay uses HIGH level trigger. HOW IT WORKS: High Level Trigger: - When IN is LOW level signal, the NO does not connect with COM and the NC connects with COM. - When IN is HIGH level signal, the NO connects with COM and the NC does not connect with COM. Low Level Trigger: - When IN is LOW level signal, the NO connects with COM and the NC does not connect with COM. - When IN is HIGH level signal, the NO does not connect with COM and the NC connects with COM. TUTORIALS: - Arduino and ESP32 online tutorials: DIYables Relay

Review: Nice relay set for switching. Easy to set-up and give you plenty of options. Has a single common wire with a NO and NC connection. The relay will switch when the 5v DC input signal goes high. Be careful to observe what voltages your CPU works on. This is a 5V device, some CPUs are 3.3V and don't work well with this product. I'm using these to change the 5v signal of the CPU output and turn on a 24v solenoid valve. These work great.
Review: Another part for my esp32 projects. I used this to control a little door strike from esp32 via home assistant. Once you understand how to wire for open and not open options, with common, it's not too tricky and works well. I liked I got 3 incase i messed up one, or needed multiple relaying. The terminals that screw down are a plus for quick connecting and disconnecting

## Features

- Relay supports Normally Open and Normally Closed
- Relay supports High-level Trigger or Low-Level Trigger selectable by a jumper
- Relay with Optocoupler Isolation
- Relay with Terminal Blocks for both Input and Output Interface
- Relay with two LED Indicators: power (green LED), the relay status (red LED)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B1ZHXXXD |
| Best Sellers Rank | #92,960 in Computers ( See Top 100 in Computers ) #1,433 in Single-Board Computers |
| Item model number | DIY-RELAY-3-5V-1C-LH |
| Manufacturer | DIYables |
| Product Dimensions | 5 x 2.6 x 1.85 cm; 59 g |

## Product Details

- **Connector type:** Screw
- **Contact material:** Steel
- **Contact type:** Normally Open
- **Current rating:** 10 Amps
- **Mounting type:** Surface Mount

## Images

![3pcs Relay Module for Arduino, ESP32, ESP8266, Raspberry Pi, 1 Channel, 5V, High/Low Level Trigger - Image 1](https://m.media-amazon.com/images/I/61vQMnAdRAL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***F on 26 October 2025*

Nice relay set for switching. Easy to set-up and give you plenty of options. Has a single common wire with a NO and NC connection. The relay will switch when the 5v DC input signal goes high. Be careful to observe what voltages your CPU works on. This is a 5V device, some CPUs are 3.3V and don't work well with this product. I'm using these to change the 5v signal of the CPU output and turn on a 24v solenoid valve. These work great.

### ⭐⭐⭐⭐⭐ Review
*by J***J on 3 January 2026*

Another part for my esp32 projects. I used this to control a little door strike from esp32 via home assistant. Once you understand how to wire for open and not open options, with common, it's not too tricky and works well. I liked I got 3 incase i messed up one, or needed multiple relaying. The terminals that screw down are a plus for quick connecting and disconnecting

### ⭐⭐⭐⭐⭐ Review
*by K***E on 30 July 2023*

I used these to create a tally system for Sony camera control units and a Tricaster TC-1. Worked great. Kept me from having to build the entire circuit.

## Frequently Bought Together

- DIYables 3pcs Relay Module for Arduino, ESP32, ESP8266, Raspberry Pi, 1 Channel, 5V, High/Low Level Trigger
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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-04-26*